Mobile iOS Engineer at Hark | San Jose

HarkSan Jose

On-site Full-time

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Experience Level

Mid to Senior

Qualifications

Expert proficiency in Swift, with extensive knowledge of UIKit and SwiftUI, alongside a robust understanding of iOS system architecture. A proven track record of developing high-performance and responsive mobile applications, with a focus on optimizing for latency, memory usage, and real-time interactions. Experience in designing and shipping intuitive, high-quality user interfaces that prioritize speed and reliability. Ability to enhance performance across all layers, including startup time, animation fluidity, memory efficiency, and network responsiveness. Ownership of components throughout their lifecycle, from design and implementation to testing, launch, and iterative improvements. Collaboration with platform and backend engineers to establish APIs, data contracts, and integration with the agent runtime. Implement tracking and instrumentation for the features you deliver to monitor performance, identify regressions, and iterate based on user feedback.

About the job

About Hark

Hark is at the forefront of artificial intelligence, developing cutting-edge personalized intelligence that is proactive, multimodal, and capable of interacting through speech, text, vision, and persistent memory.

We are integrating this intelligence with state-of-the-art hardware to create a universal interface that bridges the gap between humans and machines. While current AI predominantly relies on chat interfaces and outdated devices, Hark is pioneering the future: creating agentic systems that interact seamlessly and naturally with individuals and their surroundings.

To achieve this vision, we are innovating multimodal models alongside next-generation AI hardware, designed from scratch as a cohesive interface for a new era of intelligent systems.

About the Role

As a Mobile iOS Engineer, you will be responsible for crafting the iOS experience for Hark, building a native application that delivers a real-time, multimodal AI agent directly to users' devices.

This role requires you to create an app that feels instantaneous, adeptly manages streaming AI responses, and harmonizes voice, text, and visual inputs into a singular, user-friendly experience. This will be the primary interaction point for millions of users with Hark, setting a high standard for performance and usability.

Join our small, dedicated team where you will work closely with designers, platform engineers, and model developers. Your contributions will significantly influence how users perceive and interact with Hark.

About Hark

Hark is revolutionizing the landscape of artificial intelligence by creating a new generation of personalized, proactive, and multimodal AI systems capable of seamless interaction. Our mission is to redefine how humans engage with technology, making it more intuitive and responsive to their needs.

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Frontend Engineer at Hark | San Jose

Hark

Full-time|On-site|San Jose

About Hark Hark is at the forefront of artificial intelligence, pioneering the creation of advanced, personalized intelligence systems. Our goal is to develop proactive, multimodal AI capable of interacting seamlessly with the world through speech, text, vision, and persistent memory. We are revolutionizing the AI landscape by integrating this intelligence w…

Apr 30, 2026

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Electrical Engineer at Hark | San Jose

Hark

Full-time|On-site|San Jose

About Hark Hark is at the forefront of artificial intelligence, creating advanced, personalized systems that proactively engage with users. Our innovative technology integrates speech, text, vision, and persistent memory to redefine human-machine interaction. We are pioneering the next generation of hardware that facilitates a seamless interface between humans and machines. Unlike traditional AI, which relies on outdated interfaces, Hark is committed to developing agentic systems that communicate naturally and intuitively with the real world. To achieve this vision, we are building multimodal models and next-gen AI hardware, meticulously designed as a cohesive interface for a new era of intelligent systems. About the Role We invite you to join our dynamic team as an Electrical Engineer, where you will take charge of the power architecture for our cutting-edge portable devices. Your expertise will ensure our products are safe, efficient, and durable. From selecting optimal battery chemistries to fine-tuning PMIC registers and developing intricate power models, you will ensure that every milliwatt is effectively utilized.

Apr 30, 2026

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Backend Engineer at Hark | San Jose

Hark

Full-time|On-site|San Jose

About Hark At Hark, we are pioneering the future of artificial intelligence by creating advanced, personalized systems capable of proactive interaction across multiple modalities, including speech, text, vision, and persistent memory. Our innovative approach combines cutting-edge AI with state-of-the-art hardware, establishing a seamless interface between humans and machines. While conventional AI typically engages through outdated methods, we are focused on the next generation of intelligent systems that interact naturally with users and their environments. Our aim is to develop multimodal models and AI hardware that serve as a unified platform for the intelligent systems of tomorrow. About the Role As a Backend Engineer, you will play a crucial role in building the core systems that enable Hark's AI agents to function reliably, swiftly, and at scale. Your contributions will address key infrastructure challenges, including high-concurrency services, low-latency streaming, and state management for long-running workflows, effectively serving as the nervous system for our agentic products. This position offers significant ownership within a small team, allowing you to collaborate closely with model researchers and platform engineers. The systems you develop will fundamentally shape user experiences, differentiating Hark from traditional chatbot solutions. Responsibilities Core Runtime Architecture: Design and implement high-concurrency backend services for agent orchestration and real-time streaming. Systems Reliability: Create robust failure-handling mechanisms and state management solutions for extended agent workflows. Platform Primitives: Develop foundational APIs and services that power the Hark ecosystem, including memory retrieval systems. Performance Engineering: Optimize backend systems for low-latency streaming and high-throughput data processing. Full-Cycle Ownership: Manage features from low-level design through to production deployment and performance optimization. System Observability: Implement comprehensive monitoring and evaluation frameworks to track system health and model performance. Requirements Backend & Systems Expertise: Minimum of 5 years in developing mission-critical backend systems with a strong grasp of concurrency, networking protocols, and distributed systems. Production at Scale: Proven experience in building scalable systems that handle high traffic and data loads.

Apr 30, 2026

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Product Design Engineer at Hark | San Jose

Hark

Full-time|On-site|San Jose

About Hark Hark is a pioneering artificial intelligence company dedicated to developing advanced, personalized intelligence systems. Our vision is to create proactive, multimodal AI capable of engaging with the world through speech, text, vision, and persistent memory. We are innovating the interface between humans and machines by integrating our cutting-edge intelligence with next-generation hardware. Unlike traditional AI that relies on outdated chat interfaces and devices, Hark is focused on the future: building agentic systems that interact seamlessly and naturally with people and their environments. Our mission involves the collaborative development of multimodal models and next-gen AI hardware, engineered as a cohesive unit to usher in a new era of intelligent systems. About the Role We are seeking a talented Product Design Engineer to influence the physical design of our AI-powered devices. In this role, you will engage in the complete product development process—from initial concept sketches to CAD modeling, prototyping, and Design for Manufacturability (DFM). You will collaborate closely with electrical and machine learning engineers to create enclosures and mechanisms that support intricate sensor arrays, efficient thermal systems, and compact computing modules.

Apr 30, 2026

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Technical Recruiter at Hark | San Jose

Hark

Full-time|On-site|San Jose

About Hark Hark is a pioneering artificial intelligence company dedicated to creating advanced, personalized intelligence systems. Our vision is to develop proactive, multimodal AI that interacts seamlessly with the world through speech, text, vision, and persistent memory. We are innovating at the intersection of advanced intelligence and next-generation hardware, aiming to establish a universal interface that bridges the gap between humans and machines. Unlike conventional AI, which often relies on outdated chat interfaces and devices, Hark is forward-thinking, aspiring to build agentic systems that engage naturally with their environments. To achieve this, we are focused on developing state-of-the-art multimodal models in tandem with cutting-edge AI hardware, all engineered as a cohesive unit for a new era of intelligent systems. About the Role The Technical Recruiter will play a crucial role in attracting exceptional talent to address the intricate challenges of developing AI-driven hardware. This position demands a commitment to excellence and the agility to excel in a dynamic startup environment. The ideal candidate will prioritize intentional team expansion, ensuring that we not only increase our headcount but also recruit individuals who resonate with our core values of agility, exceptional hardware development, and a mission-driven approach. Responsibilities Oversee the complete recruiting lifecycle for technical positions (hardware, firmware, AI/ML, operations), including sourcing, screening, interviewing, and closing candidates. Build a strong and diverse candidate pipeline through direct sourcing, networking, and referrals. Collaborate with engineering leaders to articulate role requirements and develop strategic hiring initiatives. Utilize recruiting metrics (time-to-fill, quality of hire) to refine and enhance recruiting processes. Ensure a positive and engaging candidate experience throughout the recruitment journey. Enhance the structured technical interview process. Assist in the onboarding of new hires. Requirements Education: Bachelor's degree. Experience: 5+ years of experience in recruiting for technical roles, specifically in hardware engineering, AI/ML, and embedded systems in rapidly growing startup environments. Sourcing: Proven success in sourcing passive candidates and establishing talent pipelines for challenging engineering roles. Tools: Proficiency in recruiting platforms and ATS systems (e.g., Greenhouse, Lever, LinkedIn Recruiter) for effective pipeline management and reporting. Communication: Strong interpersonal skills, with the ability to build trusted relationships, provide strategic hiring insights, and assertively engage with hiring managers when necessary.

Apr 30, 2026

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Embedded Software Engineer at Hark | San Jose

Hark

Full-time|On-site|San Jose

About Hark Hark is a pioneering artificial intelligence company dedicated to creating advanced and personalized AI solutions. We are on a mission to develop proactive, multimodal intelligence that can seamlessly interact with the world using speech, text, vision, and a persistent memory. At Hark, we believe in bridging the gap between humans and machines by integrating cutting-edge AI with next-generation hardware. Unlike conventional AI systems that rely on outdated interfaces, we are focused on designing agentic systems that engage naturally with people and their environments. Our goal is to create a unified interface for a new era of intelligent systems by developing multimodal models and innovative AI hardware from the ground up. About the Role As an Embedded Software Engineer, you will play a pivotal role in developing and maintaining critical components of the firmware stack that powers Hark's consumer products. This includes everything from board bring-up and peripheral driver integration to the runtime environment that hosts on-device intelligence. You will collaborate closely with the hardware team on new silicon and sensor integrations, work with the agent team on model execution and memory constraints, and engage with product teams to deliver exceptional user experiences. You will face real-world challenges with tight constraints, and your work will have an immediate impact. Responsibilities Develop and maintain embedded firmware using C/C++ for ARM-based SoCs and microcontrollers. Manage Board Support Package (BSP) development, peripheral driver integration (e.g., SPI, I2C, UART, I2S), and RTOS task scheduling. Optimize power consumption and thermal performance for always-on, battery-operated devices. Establish and maintain OTA update infrastructure for reliable field updates. Collaborate with the on-device AI team to facilitate model inference within memory and latency constraints. Create factory test and calibration firmware for manufacturing processes. Debug complex hardware-software interactions using tools such as logic analyzers, oscilloscopes, and JTAG. Requirements Minimum of 3 years of professional experience in firmware or embedded systems development. Strong expertise in C and/or C++ in resource-constrained environments. Experience with ARM Cortex-M or Cortex-A processors and their associated toolchains. Hands-on experience with real-time operating systems (RTOS) such as FreeRTOS, Zephyr, or similar. Familiarity with wireless communication protocols (BLE, Wi-Fi, or Thread). Ability to read schematics and collaborate effectively with hardware engineers during board bring-up. Proficient in using embedded debugging tools and workflows.

Apr 30, 2026

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Mobile iOS Engineer at Hark | San Jose

Hark

Full-time|On-site|San Jose

About Hark Hark is at the forefront of artificial intelligence, developing cutting-edge personalized intelligence that is proactive, multimodal, and capable of interacting through speech, text, vision, and persistent memory. We are integrating this intelligence with state-of-the-art hardware to create a universal interface that bridges the gap between humans and machines. While current AI predominantly relies on chat interfaces and outdated devices, Hark is pioneering the future: creating agentic systems that interact seamlessly and naturally with individuals and their surroundings. To achieve this vision, we are innovating multimodal models alongside next-generation AI hardware, designed from scratch as a cohesive interface for a new era of intelligent systems. About the Role As a Mobile iOS Engineer, you will be responsible for crafting the iOS experience for Hark, building a native application that delivers a real-time, multimodal AI agent directly to users' devices. This role requires you to create an app that feels instantaneous, adeptly manages streaming AI responses, and harmonizes voice, text, and visual inputs into a singular, user-friendly experience. This will be the primary interaction point for millions of users with Hark, setting a high standard for performance and usability. Join our small, dedicated team where you will work closely with designers, platform engineers, and model developers. Your contributions will significantly influence how users perceive and interact with Hark.

Apr 30, 2026

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Full-Stack Engineer at Hark | San Jose

Hark

Full-time|On-site|San Jose

About Hark Hark is at the forefront of artificial intelligence, dedicated to developing advanced, personalized intelligence systems. Our goal is to create a proactive, multimodal AI capable of interacting seamlessly with the world through speech, text, vision, and persistent memory. We are combining this intelligence with cutting-edge hardware to establish a universal interface between humans and machines. While current AI technology largely operates through outdated chat boxes, Hark is pioneering the future with agentic systems that communicate naturally with users and engage with the physical world. To realize this vision, we are innovating multimodal models and next-gen AI hardware, engineered from the ground up as a cohesive interface for a new generation of intelligent systems. About the Team As a Full-Stack Engineer at Hark, you will be instrumental in crafting the product surfaces that define user interactions across voice, text, and vision. Your role will focus on translating our AI capabilities into fast, intuitive, and trustworthy user experiences. Bridging the gap between advanced AI and user-friendly applications is crucial, and you will take ownership of this challenge. This position offers significant ownership within a small team, working directly alongside designers and model researchers. The features you develop will shape how users engage with Hark's technology. Responsibilities Design and develop engaging product surfaces, including interfaces and interactions that users rely on daily. Collaborate closely with designers to deliver experiences that are fast, reliable, and genuinely beneficial. Take full ownership of features from initial prototyping through to production deployment, continuously iterating based on user feedback. Create frontend solutions for agent workflows, ensuring tool integration, memory retrieval, and multi-step reasoning feel cohesive and trustworthy. Measure and evaluate the impact of your work, tracking quality and user feedback to foster improvement.

Apr 30, 2026

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Embedded Application Engineer at Hark | San Jose

Hark

Full-time|On-site|San Jose

About Hark At Hark, we are at the forefront of artificial intelligence innovation, striving to create the most advanced personal intelligence systems in the world. Our vision is to harness AI to alleviate mental burdens by thinking in ways that mimic and sometimes surpass human cognition. Our proactive and personalized intelligence integrates seamlessly with various modes of interaction including speech, text, vision, and persistent memory. We are revolutionizing the relationship between humans and machines by combining this intelligence with next-generation hardware solutions. While traditional AI relies on outdated interfaces, Hark is pioneering the development of agentic systems that engage naturally with users and the surrounding environment. About the Role We are seeking a talented Embedded Application Engineer who thrives at the intersection of Android application development and embedded systems. This position goes beyond conventional mobile app development; you will be responsible for creating the critical application that operates on our hardware device, serving as the software layer that connects user experiences with the underlying firmware and embedded systems. You will be integral to transforming prototypes into production-ready products. Responsibilities Lead the development of the primary application for Hark’s hardware device, overseeing everything from architecture to production deployment. Design and enhance Android-based software that interfaces directly with embedded systems, sensors, and firmware layers. Work at the nexus of application-level code and firmware, developing software that operates on the device rather than in the cloud. Collaborate closely with hardware, embedded software, and AI teams to deliver a cohesive product experience. Manage the comprehensive lifecycle of software deployment on physical devices, including flashing, OTA updates, boot sequences, and device provisioning. Debug across the entire Android stack, from framework issues down to hardware-level communication protocols. Guide the product from initial development through manufacturing and into the hands of our users.

Apr 30, 2026

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Lead Brand Designer at Hark | San Jose

Hark

Full-time|On-site|San Jose

About Hark At Hark, we are at the forefront of artificial intelligence innovation, developing the most advanced personal intelligence solutions available today. Our mission is to enhance human productivity by creating AI that not only thinks like us but anticipates our needs, transforming how we interact with technology. We envision a future where our AI seamlessly integrates with the latest hardware, facilitating a natural dialogue between humans and machines. Unlike traditional AI that relies on outdated interfaces, Hark is pioneering the next generation of agentic systems designed to engage with the world in a more intuitive way. About the Role We are on the lookout for a visionary Lead Brand Designer to steer our brand identity at Hark. Collaborating with a talented team of multidisciplinary designers, you will shape our brand’s visual language across various platforms including digital, packaging, and retail. Your passion for design and branding will empower you to work at both a strategic level and with meticulous attention to detail. In this role, you will play a key part in narrating Hark’s story, ensuring that every element aligns with our high standards from concept to public perception. Your deep understanding of cultural trends, commitment to our mission, creative curiosity, and love for design craft will be essential to your success.

Apr 30, 2026

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Member of Technical Staff - Pretraining at Hark | San Jose

Hark

Full-time|On-site|San Jose

About Hark Hark is a pioneering artificial intelligence company dedicated to creating advanced and personalized intelligence systems. Our focus is on building proactive, multimodal AI capable of engaging with the world through speech, text, vision, and persistent memory. We are merging this intelligence with cutting-edge hardware to establish a universal interface between humans and machines. While current AI largely relies on chat boxes and outdated devices, Hark is at the forefront of developing the next generation of agentic systems that interact naturally with users and their environment. To achieve our ambitious goals, we are developing multimodal models alongside next-generation AI hardware, designed from the ground up as a single, integrated interface for a new era of intelligent systems. About the Role The Omni team at Hark is revolutionizing AI experiences beyond text, focusing on enabling models to comprehend and generate content across various modalities, including text, audio, and vision. Our mission is to create seamless, real-time multimodal intelligence that enhances intuitive and immersive user experiences. As a key member of the Omni team, you will be responsible for developing large-scale pretraining systems and foundational models. This entails working across the entire stack—from data curation and large-scale training infrastructure to model architecture and optimization. You will significantly contribute to advancing the core capabilities of our models through extensive pretraining efforts.

Apr 30, 2026

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Global Supply Chain Manager at Hark | San Jose

Hark

Full-time|On-site|San Jose

About Hark Hark is a pioneering artificial intelligence firm dedicated to developing advanced, personalized intelligence systems. Our technology is proactive, multimodal, and capable of seamless interaction through speech, text, vision, and persistent memory. We are merging this intelligence with cutting-edge hardware to establish a universal interface between humans and machines. While conventional AI primarily functions through chat boxes and outdated devices, Hark is at the forefront of what's next: agentic systems that communicate naturally with individuals and their environments. Our goal is to create multimodal models and state-of-the-art AI hardware, designed from the ground up as a cohesive interface for a new era of intelligent systems. About the Role We are seeking an outstanding Global Supply Chain Manager to help establish and scale the supply chain foundation critical to Hark's innovative products. This position is crucial for someone who can navigate both strategic and tactical levels; building supplier networks, leading sourcing strategies, and preparing for manufacturing readiness of intricate, high-performance hardware. You will collaborate closely with engineering, operations, contract manufacturers, and key suppliers to advance essential technologies and components from concept to mass production. Your responsibilities will include ensuring supply continuity, cost-effectiveness, quality assurance, flexibility, and execution across a wide array of custom and highly technical components. This role demands strong commercial acumen, technical proficiency, and agility in an environment where products, supply chains, and processes are developed concurrently. This is not a maintenance position; it is a growth-focused role. You will play a key part in defining how Hark industrializes new technologies, selects and develops suppliers, negotiates critical commercial terms, and formulates resilient supply strategies that align with ambitious product objectives. Comfort with ambiguity, the ability to make tough trade-offs, and the skills to foster alignment among internal teams and external partners are essential.

Apr 30, 2026

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Integration Engineer

Hark

Full-time|On-site|San Jose

About Hark Hark is at the forefront of artificial intelligence, developing innovative, personalized intelligence systems that are proactive, multimodal, and capable of engaging with the world via speech, text, vision, and persistent memory. We are merging this intelligence with cutting-edge hardware to forge a universal interface that connects humans and machines. Unlike conventional AI that operates through outdated chat boxes and devices, Hark is pioneering the future with agentic systems that engage naturally with individuals and their environments. Our mission is to create multimodal models and next-generation AI hardware, meticulously designed as an integrated interface for a new era of intelligent systems. About the Role As an Integration Engineer, you will take ownership of the integrations layer that empowers Hark's AI agent to be genuinely effective in real-world applications. Your responsibility will be to connect our AI to the tools, services, and data sources that users rely on daily. Your work will involve designing and implementing the protocols, connectors, and execution primitives that enable Hark to perform real actions, such as managing emails, calendars, and third-party API interactions. The true potential of our agentic system hinges on its ability to connect and act. This role offers significant ownership within a compact team where you will collaborate directly with platform engineers and model researchers. The integrations you develop will set the parameters for Hark's capabilities. Responsibilities Design and construct the integration layer connecting Hark's agent to third-party services, including email, calendars, productivity tools, communication platforms, and developer tools. Oversee the complete lifecycle of integrations: from authentication flows to API clients, schema normalization, action execution, and robust error handling. Ensure reliability beyond just the happy path. Establish and implement tool and action protocols that allow the agent to engage with external systems in a secure and consistent manner. Facilitate the seamless addition of new integrations. Collaborate closely with platform engineers to ensure that connectors are integrated smoothly into the agent runtime, ensuring fast, observable, and appropriately sandboxed tool execution. Work in partnership with model researchers to define tool schemas and action semantics that models can reliably interpret, as the quality of the interface directly influences model behavior. Instrument integrations for reliability and accuracy, tracking failures, surfacing regressions, and ensuring rapid feedback loops with the team. Identify high-leverage integration opportunities to maximize impact.

Apr 30, 2026

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Haptics Firmware Engineer at Hark | San Jose

Hark

Full-time|$120K/yr - $300K/yr|On-site|San Jose

About Hark At Hark, we are pioneering the future of artificial intelligence by creating advanced, personalized intelligence systems that are not only proactive but also multimodal. Our systems seamlessly interact with the world through speech, text, vision, and persistent memory, setting a new standard in human-machine interfaces. Unlike traditional AI that relies on outdated chat boxes and devices, Hark is focused on developing the next generation of intelligent systems that engage with users in a natural and intuitive way. We are committed to building multimodal models and state-of-the-art AI hardware, all designed as a cohesive interface for a new era of intelligent interaction.

Apr 30, 2026

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Hardware Test Engineer

Hark

Full-time|On-site|San Jose

About Hark Hark is at the forefront of artificial intelligence innovation, crafting sophisticated, personalized intelligence systems that are proactive, multimodal, and capable of engaging with the world through speech, text, vision, and persistent memory. We are merging this intelligence with cutting-edge hardware to establish a universal interface that bridges the gap between humans and machines. While traditional AI mainly relies on outdated devices and chat interfaces, Hark is pioneering the future with agentic systems that naturally interact with people and their environments. Our mission involves developing multimodal models and next-generation AI hardware concurrently, designed from the ground up as a cohesive interface for a revolutionary era of intelligent systems. About the Role We are seeking a Hardware Test Engineer who will be instrumental in creating the test infrastructure that guarantees our AI-powered devices adhere to quality, reliability, and performance benchmarks throughout the development process. You will manage the test strategy from initial board bring-up to mass production, encompassing fixture design, automation scripting, and establishing the criteria for product readiness. Your role will involve executing functional tests on the bench and conducting burn-in and stress tests at the factory, serving as the final quality assurance before our devices reach the end-users. Responsibilities Test Strategy: Define and take ownership of the comprehensive test plan across EVT, DVT, PVT, and production phases. Fixture Design: Create and develop custom test fixtures (bed-of-nails, pogo pin, cable harness) for both PCBA and system-level assessments. Test Automation: Write automated test scripts in Python to control instruments, gather data, and produce pass/fail reports. Board Bring-Up: Lead the electrical bring-up of new PCBAs, diagnosing issues with power rails, clocks, interfaces, and peripheral functionalities. Reliability Testing: Design and conduct environmental stress tests, including thermal cycling, vibration, drop tests, and accelerated life testing. Production Support: Collaborate with contract manufacturers to set up and maintain test stations on the factory floor, ensuring yield and throughput objectives are met. Failure Analysis: Conduct root cause analysis on field returns and test failures using advanced tools such as oscilloscopes, logic analyzers, and X-ray inspection. Requirements Education: A Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, or a related field. Test Automation: Proficiency in Python for instrument control (SCPI/VISA), data analysis, and test reporting. Lab Instrumentation: Advanced skills in using oscilloscopes, logic analyzers, and other lab equipment.

Apr 30, 2026

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Lead Data Engineer

Hark

Full-time|On-site|San Jose

About HarkHark is at the forefront of artificial intelligence, dedicated to crafting sophisticated, personalized intelligence systems. Our innovative approach merges proactive, multimodal capabilities, enabling interaction through speech, text, vision, and enduring memory.We are revolutionizing the interface between humans and machines by integrating our intelligence with cutting-edge hardware. While traditional AI applications are limited to chat boxes and outdated devices, Hark is pioneering the next generation of agentic systems that communicate seamlessly with people and their environments.Our mission involves the development of multimodal models and next-generation AI hardware, all designed from the ground up as a cohesive interface for a new era of intelligent systems.About the RoleAs the Lead Data Engineer, you will establish the data infrastructure that transforms raw signals into the training datasets essential for Hark's models. You will be responsible for building and maintaining the pipelines that ensure a smooth flow of data at scale.This role encompasses the entire data engineering stack: from ingestion and transformation to quality filtering and delivery to training and evaluation systems. The efficacy of the models we deploy is directly linked to the quality of the underlying data, and this position is pivotal in owning that foundational aspect.This high-responsibility role requires collaboration with a small, agile team. You will work closely with model researchers, data collection leads, and infrastructure engineers, where the systems you design will significantly influence the quality and speed of model development.

Apr 30, 2026

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Infrastructure Engineer for Large-Scale AI Training

Hark

Full-time|On-site|San Jose

About Hark Hark is at the forefront of artificial intelligence, dedicated to developing advanced and personalized systems that are proactive, multimodal, and capable of seamless interaction through speech, text, vision, and persistent memory. We aim to revolutionize the interface between humans and machines by integrating advanced intelligence with next-generation hardware. While existing AI mainly relies on outdated devices and chat interfaces, Hark is pioneering the next generation of agentic systems designed for natural interaction with people and the real world. To achieve our vision, we are creating multimodal models and state-of-the-art AI hardware from the ground up, establishing a unified interface for a new era of intelligent systems. About the Role We are seeking a skilled Member of Technical Staff to lead our Infrastructure Compute team, focusing on large-scale GPU computing clusters that power our AI training and deployment workloads. This role sits at the intersection of systems engineering and machine learning infrastructure, ensuring the reliability, scalability, and efficiency of the compute platform critical to our research and engineering teams. This is a high-impact position ideal for individuals passionate about infrastructure as a product and adept in complex distributed systems environments. Responsibilities Design, implement, and maintain Infrastructure as Code (IaC) best practices to facilitate repeatable, auditable, and scalable cluster provisioning. Enhance and secure CI/CD deployment pipelines for robust, efficient, and low-latency model service delivery across production environments. Manage and optimize stable training infrastructure operating with over 10,000 GPUs, focusing on job scheduling, fault tolerance, and network fabric efficiency. Collaborate closely with ML researchers and engineers to identify and resolve compute bottlenecks through infrastructure enhancements. Monitor system health, establish Service Level Objectives (SLOs), and lead incident response for critical training and inference workloads. Drive capacity planning, implement cost-efficiency initiatives, and manage the hardware lifecycle across the GPU fleet. Contribute to the development of internal tools and platform abstractions to enhance the developer experience for teams utilizing compute resources.

Apr 30, 2026

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Mobile Android Engineer

Hark

Full-time|On-site|San Jose

About Hark At Hark, we are revolutionizing the landscape of artificial intelligence by developing advanced, personalized intelligence systems that are proactive, multimodal, and capable of seamless interaction through speech, text, vision, and persistent memory. We are merging this intelligence with cutting-edge hardware to forge a universal interface between humans and machines. While the current AI landscape is dominated by outdated chat boxes and devices, Hark is leading the charge towards the next generation of agentic systems that interact naturally with people and their surroundings. To achieve this vision, we are crafting multimodal models and next-generation AI hardware, designed from the ground up as a cohesive interface for a new era of intelligent systems. About the Role As a Mobile Android Engineer at Hark, you will be pivotal in creating the Android application that delivers a real-time, multimodal AI experience directly to users' pockets. Your mission is to develop an app that provides instant functionality, elegantly handles streaming AI responses, and integrates voice, text, and visual elements into a unified experience. The expectations are high, as this will be the primary means through which millions will engage with Hark. This position offers significant ownership on a small team, allowing you to collaborate closely with designers, platform engineers, and model developers. Your contributions will define the user experience of Hark’s mobile presence. Responsibilities Design and implement a high-performance native Android application utilizing Kotlin and Jetpack Compose. Integrate real-time speech, audio, and video streaming capabilities for rich multimodal AI interactions. Develop efficient interfaces to backend AI services, optimizing for latency and responsiveness. Take ownership of the complete mobile development lifecycle from conception to deployment, monitoring, and iteration. Collaborate with design teams to create intuitive user interfaces that highlight advanced AI functionalities. Promote best practices in Android development including testing, code quality, and accessibility. Enhance performance across all levels of the application stack - from UI rendering to network calls, background processing, and power efficiency.

Apr 30, 2026

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Signal Integrity Engineer

Hark

Full-time|On-site|San Jose

About HarkHark is at the forefront of artificial intelligence, dedicated to creating advanced, personalized intelligence systems that are proactive, multimodal, and capable of seamless interaction through speech, text, vision, and persistent memory.Our mission is to revolutionize human-machine interaction by combining cutting-edge AI with next-generation hardware, establishing a universal interface that transcends traditional chatbots and outdated devices. Hark envisions a future where intelligent systems engage naturally with people and their environments.To realize this vision, we are developing innovative multimodal models and AI hardware, meticulously designed as a unified interface for the next era of intelligent systems.About the RoleWe are seeking a Signal Integrity Engineer to enhance our hardware team and ensure the impeccable performance of our AI-driven devices at the electrical level. In this role, you will conduct Signal Integrity (SI) analysis across high-speed interfaces—such as DDR, PCIe, USB, and MIPI—and collaborate closely with PCB layout, ASIC, and mechanical design teams to overcome the unique challenges posed by compact, thermally constrained form factors. You will run simulations, validate designs in the lab, and integrate your findings into our design rules as we transition from prototypes to mass production.

Apr 30, 2026

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Java Frontend Developer at sonsoftinc | San Jose

Sonsoft Inc.

Full-time|On-site|San Jose

Join our dynamic team at Sonsoft Inc. as a Java Frontend Developer, where you will create innovative web applications that enhance user experience. You will collaborate with cross-functional teams to design and implement cutting-edge solutions using Java and related technologies.

Mar 9, 2017

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