Voice AI Architect

About Vapi:At Vapi, we are pioneering the transition to voice as the primary interface for human interaction with technology.Our platform stands out as the most customizable solution for deploying intelligent voice agents.In just two years, we have attracted over 600,000 developers, welcoming more than 2,000 new members daily.Experience Vapi's capabilities f…

About Aqua VoiceAqua Voice is pioneering the voice input landscape for the AI era. By training our own models and creating deep OS integrations, we ensure that voice technology is executed flawlessly across the entire stack.The evolution of work is upon us; individual contributor roles are transforming as we now manage AI agents, a task that naturally aligns with voice interactions.We are not focused on traditional conversational agents; instead, we champion a voice-in-text-out (VITO) approach, believing that voice functionality should operate above traditional applications, and that innovative startups can lead in this domain.With an unwavering commitment to this vision, our progress has been promising, and we invite you to be a part of our journey.The RoleAs a growing team, you will have the opportunity to engage with all facets of our system.Recent projects include:Development of a real-time transcription server capable of managing thousands of concurrent audio streams.Training and deploying custom speech recognition models.Creating native integrations for macOS and Windows utilizing advanced system APIs.Technology StackFrontend: TypeScript, React, Next.js, ElectronBackend: Python, real-time server (Bun/Node.js), WebSocketsNative: Swift (macOS), C# (Windows)Machine Learning: Custom speech recognition models, inference pipelinesInfrastructure: Terraform, StripePrior experience with all these technologies is not required.Qualifications- Showcase your previous work and projects.- Adaptable in switching between programming languages and domains.- Capable of taking ownership of projects from concept to production.- Proficient in writing clean and maintainable code.- Experience with production systems is essential.- A positive attitude and a collaborative spirit are a must!

About Aqua VoiceAqua Voice is pioneering the voice input layer for the AI era. We develop our proprietary models and create deep operating system integrations, as mastering voice interaction necessitates comprehensive control over the entire technology stack.The landscape of work is evolving. Individual contributor roles have transformed; now you will manage AI agents, a task that is ideally suited for voice technology.We are not in the business of creating simple conversational agents. Our vision is that the most intuitive interaction with computers is through voice input with text output (VITO). We advocate for voice integration at a fundamental level, confident that a nimble company can lead innovation in this space.Our commitment to this vision is unwavering, and we have already made significant strides. We invite you to become a part of this exciting journey.The OpportunityAs we witness growing enterprise interest—teams eager to integrate Aqua into their workflows—you will lead these initiatives.Full-Cycle Sales Ownership: From initial conversation to contract signing, you will manage the entire sales process without handoffs.Land and Expand Strategy: Begin with key champions within organizations, and grow our presence across entire teams.Navigating Enterprise Processes: You will adeptly handle security reviews, procurement, and legal considerations, drawing on your previous experience.Defining Sales Methodology: As a key early-stage hire, you will help shape how enterprise sales are conducted at Aqua Voice.Collaboration with Product Teams: Your insights into enterprise needs will directly influence our product roadmap.

About Aqua VoiceAqua Voice is pioneering the voice input technology for the AI era. Our unique approach involves training proprietary models and establishing deep integrations with operating systems, ensuring optimal voice interaction capabilities.The landscape of work is evolving; the traditional role of an individual contributor is being replaced by the management of AI agents, making voice interaction a natural fit for this new paradigm.Rather than developing mere conversational agents, we envision a more intuitive method of computer interaction—voice input leading to text output (VITO). We assert that voice technology should operate at a foundational level, allowing a small, agile company like ours to innovate and excel.We are passionately committed to this mission, and our initial results have been promising. Join us in shaping the future!The OpportunityWe are looking for an iOS Engineer to help us build Aqua Voice from the ground up. This greenfield project offers you the chance to shape the mobile experience entirely.Your Contributions Will Include:Developing a native iOS application with system-level voice input features (including keyboard extensions, Shortcuts, and Siri integration).Implementing real-time audio capture and streaming to our transcription backend.Creating deep iOS integrations to enhance user experience.This role requires a focus on native performance and comprehensive system integration—this is not just a web view wrapper.Technology StackSwift (SwiftUI + UIKit where applicable)Audio Technologies: AVFoundation, Audio Unit, real-time streamingNetworking: WebSockets, streaming protocolsSystem Integrations: Keyboard extensions, Shortcuts, accessibility APIs

About Retell AI Retell AI develops advanced voice AI technology for call centers, using first-principles approaches to create intelligent voice agents. These agents help businesses manage sales, support, and logistics communications while reducing reliance on large human teams. The company has reached $36M ARR in just 18 months, backed by Y Combinator and Alt Capital. With a team of 20, Retell AI is building a comprehensive customer experience platform, aiming for AI-powered contact centers by 2026. The vision: intelligent agents that execute, monitor, and improve customer interactions with minimal human oversight. Named a top 50 AI app by a16z: https://tinyurl.com/5853dt2x Ranked #4 on Brex's Fast-Growing Software Vendors of 2025: https://www.brex.com/journal/brex-benchmark-december-2025 Featured among top startups: https://leanaileaderboard.com/ Role Overview: Research Scientist - Voice AI Innovation This role centers on advancing machine learning for human-like voice agents in real-world settings. The Research Scientist will explore new methods in large language models (LLMs) and audio models, design evaluation techniques, and prototype systems that improve reasoning, reduce latency, and enhance conversational quality. The work involves open-ended ML challenges, rapid experimentation, and direct influence on the performance and cognitive abilities of voice AI systems at scale. Location San Francisco Bay Area

About Liquid AIFounded as a spinoff of MIT CSAIL, Liquid AI specializes in developing versatile AI systems designed for optimized performance across various deployment platforms, from data center accelerators to on-device hardware. Our commitment to low latency, minimal memory consumption, privacy, and reliability sets us apart. We collaborate with enterprises in sectors such as consumer electronics, automotive, life sciences, and financial services. As we experience rapid growth, we seek remarkable talent to join our journey.The OpportunityAs we establish our solutions architecture function from the ground up, you will play a pivotal role as one of our inaugural Solutions Architects. Collaborating closely with the Head of Solutions Architecture and the go-to-market organization, you will manage customer engagements from inception to completion.Our models are specifically engineered for environments constrained by memory, latency, and power, encompassing edge devices, mobile applications, embedded systems, and on-premises infrastructure where traditional models cannot operate. You will engage with this boundary daily.Our clientele ranges from AI-native startups to established enterprises venturing into AI for the first time. Your mission is to bridge the gap between our models' capabilities and customers' expectations, delivering on that promise from technical validation through to go-live.

Join Our Team at Aqua VoiceAqua Voice is at the forefront of developing the voice input layer for the AI era. Our innovative approach involves training proprietary models and establishing deep OS integrations, ensuring we master the entire voice technology stack.The nature of work is evolving, and we’re transitioning from traditional individual contributor roles to managing AI agents. This shift creates a unique opportunity for voice technology to thrive.Rather than simply creating conversational agents, we envision an interaction model where voice input leads to text output (VITO). We believe voice should operate at a higher level than applications, enabling a smaller company like ours to lead the charge.Our passionate commitment to this vision has yielded promising results, and we invite you to be a part of our journey.Your RoleAs a Sales Development Representative, you will play a critical role in building our enterprise pipeline by pinpointing ideal companies and connecting us with key decision-makers.Research and Targeting: Identify companies and teams that align with our profile.Outbound Engagement: Utilize email, LinkedIn, and creative strategies to reach out—prioritizing quality over quantity.Qualification: Assess client needs, budgets, and timelines to set Account Executives up for success.User Expansion: Leverage existing contacts to open doors at potential client companies.Iterative Learning: Analyze messaging and channel effectiveness to refine our approach.This position serves as a pathway to Account Executive roles for those interested in advancing their career.

Join Our TeamAqua Voice is pioneering the voice interaction layer for the AI-driven era. We develop our own models and create deep OS integrations, as mastering voice technology necessitates control over the entire stack.The landscape of work is evolving rapidly. It's no longer just about individual contributions; now, you manage AI agents, and voice interaction is ideally suited for this new paradigm.We are not in the business of crafting conversational agents. Our vision is that the most intuitive way to engage with your computer is through voice commands with text responses (VITO). We believe that voice technology should operate at a layer above applications, and as a small company, we have the potential to push boundaries in this area.With relentless dedication, we are making great strides, and we invite you to be part of this journey.Your RoleWe are seeking a talented designer who is also proficient in coding.You will take the reins on design for our desktop applications, web platforms, and marketing collateral. You will implement your designs using React, TypeScript, and CSS.This is primarily a design-focused position. We prioritize your aesthetic sense over the speed of engineering.

Role Overview Anaplan is looking for a Principal AI Architect based in San Francisco. This role sets the technical direction for AI initiatives and works closely with teams across the company to design and build advanced AI solutions. The Principal AI Architect plays a key part in shaping AI strategy and strengthening Anaplan's product capabilities through practical, business-focused applications of artificial intelligence.

Draup, a Series A-funded company in San Francisco, builds an intelligence platform that helps global enterprises make workforce and go-to-market decisions. The platform processes more than 1 billion job descriptions and 850 million professional profiles, drawing insights from over 100 labor databases. Draup supports over 250 enterprise clients, including five Fortune 10 companies. Role overview The Principal AI Architect joins a senior engineering group in Silicon Valley, focusing on advanced AI research and product development. This role shapes the technical direction for Draup’s next-generation AI systems and infrastructure. What you will do Set the architectural vision for advanced AI systems, including agent architectures, reasoning frameworks, and proprietary model development. Design and evaluate new AI capabilities such as predictive modeling, autonomous signal synthesis, and multi-modal intelligence to create valuable intellectual property. Build and maintain the technical foundation: data architecture, model serving, agent orchestration, and inference systems aligned with a long-term product roadmap. Analyze and incorporate emerging AI approaches, such as multi-agent reasoning and retrieval-augmented fine-tuning, ahead of broad industry adoption. Develop engineering standards, lead architecture reviews, and oversee documentation practices to safeguard intellectual property within the team.

About Aqua VoiceAqua Voice is revolutionizing voice input for the AI era. We develop proprietary models and create deep operating system integrations, as mastering voice technology necessitates comprehensive control over the entire stack.The workplace landscape is evolving. Individual contributor roles are being replaced by the need to manage AI agents, and this transition is ideally suited for voice interaction.Unlike conventional conversational agents, we advocate for a voice-first approach where voice input leads to text output (VITO). We assert that voice interaction should transcend application layers, and our nimble organization is committed to pushing boundaries in this domain.Our relentless pursuit of excellence in this space has yielded promising results, and we invite you to be part of our journey.The RoleAs a Staff Engineer, you will take ownership of technical systems across the entire stack. Being a small, post-product-market-fit team, we are experiencing growth with real users facing real challenges.We favor modern technologies—opting for Bun over Node, Fly over AWS when applicable, and PyTorch over outdated ML frameworks.Your ResponsibilitiesGPU Inference: We independently run our Automatic Speech Recognition models.Real-time Transcription: Implementing WebSocket state machines, multi-provider failover, and achieving sub-100ms latency targets while tracking over 30 metrics per session.Native Applications: Utilizing Swift for macOS, C# for Windows, and Electron IPC for system-level programming.Backend Development: Employing Django for billing and analytics, Celery for background tasks, and PostgreSQL for database management.You will be involved in all aspects of our infrastructure and product development.Technology Stack- Languages: TypeScript, Python, Swift, C#- Runtime Environments: Bun, Node.js, Django, FastAPI- Machine Learning: PyTorch- Infrastructure: Fly.io, Terraform, AWS (RDS), Redis- Protocols: gRPC, WebSocket, RESTQualifications- Proven experience in building and managing systems at scale.- Strong architectural opinions that are adaptable.- Comfortable being the foremost technical expert in the room.- Capable of transforming ambiguous problems into functional systems.- Ability to write production-ready code.

Join Varomoney as a Principal AI/ML Architect, where you will lead groundbreaking projects that leverage artificial intelligence and machine learning to transform financial services. Your expertise will guide our engineering teams in developing innovative solutions that not only meet but exceed client expectations. You will be at the forefront of AI/ML technology, driving strategic initiatives and ensuring the highest standards of technical excellence.

About Sage CareSage Care is a dynamic and rapidly expanding healthcare startup, founded by a team of visionary leaders from major tech companies like Apple, Uber, and Carbon Health, and supported by esteemed venture capital firms including General Catalyst and Chelsea Clinton. Our mission is to revolutionize healthcare by streamlining care navigation, making it accessible and efficient for everyone.Our innovative platform empowers patients to easily locate the right healthcare providers and enables clinicians to prioritize those who require assistance the most. By leveraging cutting-edge AI technologies, we ensure that patients have quicker access to care, leading to improved health outcomes and significant economic advantages at scale.Having established successful partnerships with healthcare systems across the U.S., we are now extending our reach internationally, particularly in the MENA region, where we are collaborating with local health systems to implement our AI-driven care navigation solutions.About the RoleWe are seeking a highly skilled Staff AI Engineer to spearhead the design and advancement of our AI voice agents. This pivotal role will involve creating and managing AI systems that perform effectively in real-world environments.You will be responsible for the comprehensive behavior of our agents, overseeing their orchestration, tool utilization, latency, evaluation, and the management of failures.Your work will involve tackling complex, non-deterministic systems, crafting an architecture that ensures consistency, observability, and scalability in production settings.What You’ll DoDesign and oversee the architecture of AI agents, encompassing orchestration, tool usage, and control flow.Create systems that guarantee reliable agent operation across diverse real-world interactions.Develop and refine evaluation frameworks to assess agent quality and behavior.Identify and troubleshoot complex issues in production, including edge cases, failures, and regressions.Enhance performance across the system stack, focusing on latency, cost, and reliability.Establish patterns and best practices for building and operating AI agents.Mentor fellow engineers and elevate the standards of AI systems design and execution.What We’re Looking ForRequired QualificationsMinimum of 7 years of experience in software engineering.Proven experience in developing and managing AI agents or conversational systems in production settings.Deep understanding of:Agent orchestration and control mechanisms.Real-world systems and their operational challenges.

Empower Every Identity, from AI to HumanIdentity is crucial for harnessing the full potential of AI. At Okta, we secure AI by constructing a trusted, neutral infrastructure that allows organizations to confidently navigate this new era. This mission requires an unwavering commitment to tackling complex challenges with significant real-world implications. We seek innovators and leaders who act swiftly and with precision to deliver exceptional results.This is a chance to engage in career-defining work. If you share our dedication to this mission, we want to hear from you.The Identity TeamThe Identity team’s objective is to reinforce Okta’s standing as the leading Identity-as-a-Service provider by identifying and mitigating risks to our employees, products, and, most importantly, our customers. As cloud application adoption accelerates, businesses face challenges in accurately assessing risks and responding at the speed required. The AI Identity Architect OpportunityReporting to the VP of Identity & Access Management, you will be an AI Identity Trailblazer, not merely an IAM specialist. Your extensive experience in securing autonomous agents at scale will be your key asset. You’ve witnessed the shortcomings of traditional OAuth flows under agentic demands, grappled with the challenges of "Secret Zero" in a LangChain loop, and identified the gaps in current industry tools. At Okta, your role will extend beyond implementing security; you will leverage your proven expertise to influence the product features necessary to safeguard the next generation of identities.The mission of the AI Identity Architect is to spearhead Okta’s enterprise identity strategy for autonomous AI agents. As Customer Zero, you will implement Okta on Okta—validating identity patterns at a production scale, providing direct input into product roadmaps, and collaborating with business units to enhance internal agentic systems. What You’ll Be Doing Product Vision & Architecture (The "Ratified R0")Drive the Roadmap: Serve as a primary stakeholder for Okta’s product teams. Translate your real-world experience in securing agents into prioritized feature requests and product requirements.Target State: Establish a multi-year roadmap for Non-Human Identities (NHIs) and AI Agents in alignment with Zero Trust (NIST 800-207) and Okta’s Secure Identity Commitment.Posture First: Employ ISPM (Identity Security Posture Management) to identify unmanaged AI agents and eliminate "Identity Debt".

Join nexxa as a Senior AI Architect, where you'll lead groundbreaking projects and drive innovation in the realm of artificial intelligence. Your expertise will guide our engineering teams in creating scalable AI solutions, ensuring our products meet the highest standards of quality and performance. Collaborate with cross-functional teams to translate business needs into AI strategies, and influence the future of technology at nexxa.

Join Intercom as a Senior AI Deployment Architect, where you will play a pivotal role in designing and implementing AI solutions that revolutionize customer communication. You will work alongside a talented team of engineers and data scientists to build state-of-the-art AI models and systems. Your expertise will be essential in deploying scalable AI applications that enhance user experiences across various platforms.

Join Distyl AI as a Forward Deployed AI ArchitectDistyl AI specializes in creating production-grade AI systems that streamline core operational workflows for Fortune 500 companies. Through our strategic alliance with OpenAI, cutting-edge software accelerators, and extensive enterprise AI knowledge, we deliver effective AI solutions with a rapid time-to-value—often within a quarter.We have empowered Fortune 500 clients from various sectors, including insurance, consumer packaged goods, and non-profits. When you join our team, you'll assist companies in recognizing, developing, and achieving value from their Generative AI investments, frequently for the first time. Our approach is customer-focused, ensuring we work backward from the customer's challenges while being accountable for generating financial impact and enhancing the experiences of end-users.Led by a team of accomplished leaders from prestigious companies like Palantir and Apple, Distyl is supported by notable investors including Lightspeed, Khosla, Coatue, Dell Technologies Capital, Nat Friedman (Former CEO of GitHub), and Brad Gerstner (Founder and CEO of Altimeter), alongside board members from over a dozen Fortune 500 firms.Your RoleAs a Forward Deployed AI Architect, you will play a crucial role in constructing AI systems within the most intricate enterprise environments globally. This position demands professionals who can fully oversee how intelligent systems are designed, integrated, secured, and managed in production, while being actively involved in the technical processes.Key Attributes: Our ideal candidates are seasoned builders with the expertise to create and refine end-to-end AI systems across complex enterprise architectures. They serve as trusted technical partners to client engineering teams, security divisions, and operations, making informed architectural decisions that weigh capability against risk and operational practicality. Their authority is built on performance rather than title.Key ResponsibilitiesOversee the technical framework of AI systems deployed in client settings.Define the integration of models, agents, data pipelines, APIs, and orchestration layers, ensuring effective operation within existing enterprise infrastructures while maintaining safety and reliability at scale. Focus on architectural patterns that ensure consistency, safety, and long-term adaptability across deployments.Engage actively throughout the project lifecycle, from building reference implementations to evaluating and evolving systems.

About Sage CareSage Care is an innovative healthcare startup that is rapidly gaining traction, founded by industry leaders from Apple, Uber, and Carbon Health, and supported by esteemed venture capital firms including General Catalyst and Chelsea Clinton. Our mission is to revolutionize healthcare by streamlining care navigation and ensuring that patients have swift access to the right medical professionals.Our cutting-edge platform not only enables patients to easily connect with the appropriate doctors but also allows providers to focus on patients who require their services the most. By leveraging the latest advancements in AI, we are committed to delivering exceptional care and enhancing economic outcomes on a large scale.Following successful partnerships with health systems across the United States, we are excited to announce our expansion into the MENA region, where we are collaborating with local health systems to deploy our AI-driven care navigation solutions.About the RoleWe are seeking a talented and product-oriented AI Engineer to join our team and enhance Sage Care’s AI Voice platform. In this hands-on role, you will engage with real customer-facing systems, contributing to the development of features, troubleshooting issues from live interactions, and optimizing the performance of our voice agents in a practical setting.Your collaboration with seasoned engineers and product teams will be crucial in delivering high-quality voice experiences that benefit both patients and healthcare providers.Key ResponsibilitiesDevelop and implement features for AI-driven voice interactionsTroubleshoot and resolve issues arising from actual calls to enhance system functionalityWork with technologies including transcription, LLMs, and APIsImprove latency, reliability, and overall conversation qualityContribute to the testing, monitoring, and observability processesCollaborate closely with product teams to refine user experienceQualificationsRequired2–3 years of experience in software engineeringProficiency in programming languages, with a preference for PythonExperience in building backend systems or APIsA product-focused mindset that prioritizes user experience and outcomesA willingness to learn and thrive in a dynamic environmentA comfort with ambiguity and strong problem-solving skillsPreferredFamiliarity with AI technologies and voice systems

About Retell AIAt Retell AI, we are pioneering the future of call centers through innovative voice AI technology. Our cutting-edge solutions are transforming how companies engage with customers.In just 18 months since our inception, we've empowered thousands of businesses with our AI voice agents that efficiently manage sales, support, and logistics calls, significantly reducing the need for large teams of human agents. Supported by industry-leading investors including Y Combinator and Alt Capital, we've grown our annual recurring revenue from $5M to an impressive $36M while expanding our team from 5 to 20 talented individuals since 2025.Our ambitious vision for 2026 is to develop a state-of-the-art customer experience platform where entire contact centers are driven by AI. Unlike basic automation requiring constant human oversight, we’re engineering intelligent AI “workers” capable of serving as frontline agents, quality assurance analysts, and managerial roles, all while optimizing customer interactions continuously.We are rapidly expanding and seeking driven builders who thrive on solving complex technical challenges, act decisively, and wish to make a tangible impact in one of the fastest-growing voice AI startups.Join us in shaping the future!Recognized as a top 50 AI application in the a16z list: https://tinyurl.com/5853dt2xRanked #4 in Brex's Fast-Growing Software Vendors of 2025: https://www.brex.com/journal/brex-benchmark-december-2025Featured among the top startups on: https://leanaileaderboard.com/

Join our innovative team at Zip as an AI Architect in Finance. In this role, you will leverage your expertise in artificial intelligence to develop and implement cutting-edge financial solutions. Your work will directly impact our strategy and drive efficiencies across the organization.As an AI Architect, you will collaborate with cross-functional teams to design scalable AI models and frameworks that enhance our financial products. You will be instrumental in harnessing the power of data to optimize decision-making processes, improve customer experiences, and drive revenue growth.