Staff Fullstack Engineer, Dialer

Join the Innovative Team at Nooks.ai:Nooks is revolutionizing the sales landscape with our cutting-edge AI Sales Assistant Platform (ASAP). By automating repetitive tasks, we empower sales representatives to focus on building relationships and closing deals, leading to increased sales pipelines. Our platform has enabled countless sales professionals to meet …

About UsAt Heidi, we believe healthcare deserves a more harmonious approach—one that ensures care is both ongoing and profoundly human. Our mission is to create an AI Care Partner that collaborates seamlessly with clinicians to achieve this goal.Our diverse team consists of doctors, engineers, designers, researchers, and creatives dedicated to developing tools that allow clinicians to concentrate on their primary focus: their patients.In just a year and a half, Heidi has successfully reclaimed over 18 million hours for healthcare professionals, facilitating 73 million patient visits across 116 countries. Currently, more than two million patient visits weekly are powered by Heidi globally.With nearly $100 million in funding, we are expanding our reach across the US, UK, Canada, and Europe, partnering with esteemed health systems such as the NHS, Beth Israel Lahey Health, and Monash Health.

Join our dynamic team at Sonsoft, Inc. as a J2EE Developer where you will leverage your expertise in Core Java, Spring Boot, and MAVEN to create innovative software solutions. You will be responsible for developing and maintaining high-performance applications that meet the needs of our clients. Collaborate with cross-functional teams to design, implement, and optimize software applications.

Join our dynamic team at Sonsoft Inc. as a J2EE Developer, where you will leverage your expertise in Core Java, Spring Boot, and MAVEN to build robust applications. You will be a crucial part of our development team, contributing to the design and implementation of innovative software solutions that meet client needs.

About the Role:Join our dynamic ML Infrastructure team as a Software Engineer, where you'll collaborate intimately with the Machine Learning and Product teams to construct top-tier machine learning inference platforms. These cutting-edge platforms drive vital services such as personalized recommendations, search functionalities, and content comprehension at Tubi.Your primary focus will be on the development and maintenance of low-latency ML model serving systems that cater to Deep Learning, LLM, and Search models. This will include the creation of self-service infrastructure and critical components such as the inference engine, feature store, vector store, and experimentation engine.In this role, you'll enhance our service deployment and operational processes, with opportunities to contribute to open-source projects. Enjoy architectural freedom to explore innovative frameworks, spearhead significant cross-functional projects, and elevate the capabilities of our ML and Product teams.We are currently hiring for two positions:Staff Software EngineerPrincipal Software EngineerAdditional Details: As a Principal Engineer, you will serve as a technical leader and visionary, guiding the advancement of our machine learning platform. You'll address complex technical challenges, shape architectural decisions, and mentor senior engineers, fostering a culture of excellence and continuous improvement. Your contributions will impact millions of users.

Join our dynamic team at Betasoft Systems as an Android Developer! We are seeking a talented individual who is passionate about mobile technology and eager to contribute to innovative projects. In this role, you will be responsible for designing and developing high-performance Android applications that enhance user experience and functionality.

About Our TeamAt OpenAI, our mission is to create safe artificial general intelligence (AGI) that benefits every individual across the globe. This ambitious goal demands that we recruit exceptional talent in various fields including research, engineering, product development, policy, operations, and leadership. The Recruiting team is pivotal in this journey, tasked with identifying, attracting, and delivering top-tier candidates who embody OpenAI's core values and aspirations.The Candidate Experience team is committed to ensuring that every interaction a candidate has with OpenAI—regardless of role, region, or seniority—exemplifies excellence, fairness, and a human touch. This team oversees global coordination, interview logistics, onsite experiences, and the operational workflows that underpin all recruiting functions, from Executive and Research to Technical, GTM, and G&A. The Candidate Experience team adapts to various hiring approaches, from executive and research roles to high-volume technical positions, playing a vital role in crafting tailored experiences for specialized searches while also ensuring scalability as OpenAI expands worldwide.About the RoleAs the Global Candidate Experience Manager, you will define, scale, and continuously enhance the candidate experience at OpenAI. You will lead a diverse, geographically dispersed team of Recruiting Coordinators and team leads, overseeing the systems, workflows, and service standards that facilitate smooth and outstanding hiring processes across the organization.This position combines global leadership, operational excellence, and strategic design. You will develop an AI-first candidate experience model, manage some of the most intricate and confidential searches within OpenAI, and implement the infrastructure necessary for high-volume and research-level technical recruitment. Collaboration will be key, as you will work closely with all Recruiting functions as well as Executive Operations, People Analytics, Internal Tools, and the People Innovation Lab.Our ideal candidate has substantial experience in leading recruitment operations teams, scaling initiatives across multiple offices or countries, and thriving in environments where customized workflows and scalable systems coexist.

About SemgrepSemgrep is the vanguard of code security, revolutionizing the way developers create software by enabling frictionless innovation. Our platform aids teams in identifying, flagging, and resolving real security issues prior to deployment, supported by a security system that evolves with every line of code written. Semgrep ensures the integrity of code during development and provides essential guardrails, allowing developers to work swiftly and securely. Trusted by prominent organizations such as Snowflake, Dropbox, and Figma, Semgrep enhances visibility and control for security teams while delivering solutions seamlessly within the developer workflow. Our AI technology minimizes false positives and prioritizes actionable vulnerabilities, achieving validation from 95% of security experts across over 6 million findings.Founded in San Francisco and backed by leading venture capital firms like Menlo Ventures, Felicis Ventures, Lightspeed Venture Partners, Redpoint Ventures, and Sequoia Capital, Semgrep has been recognized by Gartner in Application Security Testing. Discover more at semgrep.dev.About the RoleThe Infrastructure team at Semgrep manages the critical cloud infrastructure that supports both internal and external applications, including our flagship offerings, Semgrep Code and Semgrep Supply Chain. Our mission is to empower Semgrep employees to confidently build, operate, and maintain their systems. We achieve this by offering a cohesive platform that transitions projects seamlessly from code to cloud, utilizing CI/CD systems, Kubernetes in AWS environments, and robust tools for production software operations.In this role, you will immerse yourself in the application security domain, collaborating with seasoned engineers to develop a robust infrastructure platform and build secure, reliable, and high-performing distributed systems. Embrace Semgrep’s transparent culture, where your insights and contributions can directly shape the success of our startup. Your work will play a vital role in positioning Semgrep as a leading static-analysis project, making a lasting impact not only within our organization but also in the broader developer community.Your Responsibilities:Collaborate with senior and staff engineers to design, implement, and deploy infrastructure initiatives.Learn and apply infrastructure best practices in conjunction with team members.Take ownership of projects, platforms, and tools within the team, managing them over several weeks.

Key Responsibilities * Actively engage in hands-on development * Architect and develop cutting-edge applications for the Android ecosystem * Prioritize the creation of secure and high-performance applications. * Collaborate with diverse teams to conceptualize, design, and implement innovative features * Integrate internal and external data sources and APIs * Conduct unit tests to ensure code robustness, covering edge cases, usability, and overall reliability * Address bugs and enhance application performanceEssential Qualifications* Bachelor's or Master's degree in Computer Science, Engineering, or a related field * 6+ years of dedicated experience in Android development. * Demonstrated software development expertise and strong Android skills * Proven track record of publishing at least one original Android application on the Google Play Store * Familiarity with popular Android libraries (such as Dagger, Retrofit) and application compatibility libraries (like Data Binding) for developing applications compatible with all Android devices. * Experience in invoking REST APIs and parsing JSON * Knowledge of mobile security, including encryption and API security. * Comprehensive understanding of the complete mobile development lifecycle

We appreciate your interest in joining Uncountable Engineering!About UsAt Uncountable, we are on a mission to transform industrial research and development. We are looking for passionate and innovative platform engineers who are eager to enhance user experience and scale web applications effectively. Join us in building a cutting-edge development platform that will empower Fortune 500 companies.Role OverviewAs a Senior Full-Stack Engineer, you will play a pivotal role in developing the Uncountable Web Platform, a tool where scientists can upload and analyze their experiments. This position will involve an equal blend of front-end and back-end work, allowing you to take full ownership of the platform's development. You will also have the opportunity to engage directly with customers and lead enterprise software deployments.

Join Us at Retell AIRetell AI is revolutionizing the call center industry by leveraging innovative voice AI technology based on first principles.In just 18 months since our inception, we have attracted thousands of companies that rely on Retell's AI voice agents to efficiently manage sales, support, and logistics calls, previously handled by large teams of human agents. Supported by renowned investors such as Y Combinator and Alt Capital, we have rapidly grown from $5M to $36M in Annual Recurring Revenue (ARR) with a dedicated team of 20.Looking ahead to 2026, our ambition is to establish a state-of-the-art customer experience platform entirely powered by AI. We aim to create intelligent AI “workers” capable of serving as frontline agents, quality assurance analysts, and managers, continuously optimizing customer interactions without the need for constant human oversight.We are on an exciting growth trajectory and are seeking driven individuals who are eager to solve complex technical challenges, accelerate progress, and make a significant impact at one of the fastest-growing voice AI startups.Let’s innovate the future together!Ranked as a top 50 AI app by a16z: https://tinyurl.com/5853dt2x#4 on Brex's Fast-Growing Software Vendors of 2025: https://www.brex.com/journal/brex-benchmark-december-2025One of the top startups on: https://leanaileaderboard.com/

ABOUT MITHRLAt Mithrl, we envision a future where innovative medicines are delivered to patients in mere months instead of years, and where scientific advancements occur at the speed of thought.We are pioneering the world's first commercially available AI Co-Scientist, a transformative discovery engine that rapidly converts complex biological data into actionable insights. Scientists can pose inquiries in natural language, and Mithrl provides comprehensive analyses, novel target suggestions, hypotheses, and patent-ready documentation.Our impressive growth reflects our success:Achieved 12X year-over-year revenue growthTrusted by leading biotech companies and major pharmaceutical firms across three continentsFacilitating significant breakthroughs from target discovery to patient outcomes.ROLE OVERVIEWWe are searching for a QA Engineer specializing in Scientific Software to develop the testing, validation, and monitoring infrastructure that ensures the accuracy and reliability of the Mithrl AI Co-Scientist. This position necessitates a PhD-level scientist or computational biologist who comprehends the intricacies of the drug development lifecycle and possesses practical experience with omics data. A solid scientific foundation is crucial for assessing the biological relevance of Mithrl's outputs.In this role, you will implement automated testing for analysis workflows, data ingestion pipelines, and discovery applications. You will establish CI systems for early regression detection, set up monitoring and alerting for system performance, and ensure every module in Mithrl generates scientifically valid and reproducible outputs. This position is a vital link between scientific knowledge and software quality engineering, essential for maintaining trust in Mithrl's analytical capabilities.If you are a scientist passionate about product reliability, reproducibility, and the validation of machine learning-powered scientific tools, this role offers a uniquely impactful opportunity.KEY RESPONSIBILITIESDevelop automated testing frameworks for data ingestion, analysis modules, discovery applications, and new product features.Create scientific validation frameworks to ensure correctness and reproducibility of machine learning-driven biological analyses.Implement continuous integration workflows that conduct end-to-end tests with every commit, identifying scientific and computational regressions.Establish monitoring and alerting systems to track health, performance, and reliability metrics.

Join the innovative team at fal and be a pivotal player in the GenAI media revolution! We are looking for skilled Backend Engineers who are passionate about leveraging their extensive experience with backend APIs and robust HTTP client/server design. In this role, you will develop high-performance, reliable proxies for our partner model providers.

Join Us in Transforming HealthcareAt Assort Health, we are dedicated to making superior healthcare universally accessible—anytime, anywhere. We envision healthcare as a seamless experience marked by swift responses, transparent communication, and easy access to care. Our mission is to revolutionize the connection between patients and providers through advanced AI solutions tailored to the unique requirements of each provider.As the leading patient experience platform, Assort integrates specialty-specific agentic AI with EHR/PMS systems, significantly reducing hold times and inefficiencies, thus ensuring patients receive timely care. Since our inception in 2023, we have successfully managed over 100 million patient interactions, decreasing average hold times from 11 minutes to just 1 minute. Our platform now supports thousands of providers with an impressive 98%+ resolution rate and 99% scheduling accuracy. With an average patient satisfaction score of 4.5/5 based on 52,000 reviews, we are proud to announce a remarkable 20× revenue growth in 2025 and are rapidly scaling our services across the healthcare sector.About the RoleAs an Engineering Manager at Assort Health, you will balance hands-on technical development (designing, coding, and deploying core systems) with leadership responsibilities. Collaborating closely with our Operations team, you will empower your team to achieve their objectives and deliver exceptional experiences for both patients and clients. Your primary focus will be on technical ownership and emotionally intelligent team leadership.You will lead the team developing our innovative product, AssortOS—a CRM and workflow platform enhanced with our cutting-edge, specialty-focused, multimodal AI agents designed for patient engagement.Current focus: GenAI patient engagement; Future goals: care navigation and payer-call automation. What You’ll DoExtreme Ownership & Collaboration (~50%)Design and deliver essential AssortOS services, ensuring a balance of scalability, performance, and security.Collaborate and translate customer insights from Ops into actionable technical requirements, simplifying complex problems into achievable goals that improve outcomes for patients and providers.Team Delivery & Execution (~30%)

About UsAt doss, we are pioneering the future of operational efficiency with our innovative platform, often referred to as the “Terraform for operators.” We are developing an AI-driven schema layer that powers a customizable data warehouse, enabling physical-goods companies to rapidly adapt their record systems in alignment with the evolving pace of their business operations.Imagine leveraging AI foundation models for seamless schema migrations, achieving real-time observability across operational and financial data, managing complex git versioning for schema and data changes, and creating workflows that are as flexible as infrastructure code.Your RoleCollaborate closely with design teams and fellow engineers to rapidly develop intuitive and lightning-fast web experiences.Play a crucial role in shaping the technical roadmap by prioritizing features that enhance customer-facing experiences.Develop adaptable infrastructure and components that can scale in a composable software environment, similar to tools like Retool, Airtable, Zapier, and Figma.Design a versatile entity-attribute-value (EAV) data model and schema-as-code platform that supports customer instances while ensuring transactional integrity.Your SkillsAbility to initiate and execute projects in ambiguous environments, transitioning from zero to one.Proficient in Typescript, React, NextJS, and Tailwind CSS.Familiarity with GraphQL, Postgres, ORMs, and Node (Express).Comfortable utilizing internal APIs to construct complex front-end interfaces and components.Knowledge of various databases including Postgres, Elasticsearch, DuckDB, and Memgraph.Who You AreTeam Player: You foster positivity, openness, and curiosity within the team.Growth Mindset: You view every challenge as an opportunity to learn and enhance yourself, your team, and the organization.Craftsmanship: You take pride in delivering high-quality work.Customer-Centric: You prioritize the customer experience and aim to create delightful products.Pragmatic: You make informed decisions based on circumstances rather than strict theories.Low Ego: You thrive in collaborative settings where team support is paramount.

At Composio, we are developing advanced infrastructure that enables agents to seamlessly interact with essential work tools such as GitHub, Gmail, Notion, Salesforce, and more. Our dedicated team of engineers is committed to tackling challenges ranging from contextual understanding to search functionalities, ensuring we provide an exceptional bridge between your agents and their tools.Having secured a $25M Series A funding from Lightspeed, alongside prominent angel investors like Guillermo Rauch (CEO of Vercel), Dharmesh Shah (CTO of HubSpot), and Gokul Rajaram, we have experienced remarkable growth, tripling our ARR at the start of this year. Our clientele includes notable names from Y Combinator cohorts to Wabi, Glean, Zoom, and beyond.Your RoleEnhance the experience of teams utilizing our platform by refining our core APIs and SDK.Create intuitive interfaces for both frontend and SDK applications.Take ownership of product development from concept through to production.Collaborate closely with customers to cultivate their loyalty while enhancing the product.Craft clear and concise documentation.

Join Runlayer as a Senior Product Engineer, where you will play a pivotal role in shaping the future of AI integration with enterprise systems. Our mission is to empower organizations to leverage AI securely and efficiently through our innovative control plane for MCP (Managed Communication Protocol).At Runlayer, we are the architects of AI Actions for OpenAI and have successfully delivered Zapier Agents to millions. Recently, we launched the first remote MCP server with Anthropic, and we are now focused on building the necessary infrastructure for enterprises to adopt MCP safely.As part of our dynamic team of engineers, you will directly engage with customers to translate their challenges into actionable product enhancements. Your contributions will directly influence our product roadmap, ensuring we meet our clients' evolving needs.

Human Delta is at the forefront of AI integration for American enterprises, supported by leading venture capital firms including Susa Ventures, Wischoff Ventures, Afore Capital, and the Kleiner Perkins Scout Fund, along with notable angel investors from prestigious research institutions and financial organizations. Our dedicated team of engineers is constructing a robust operating layer that ensures enterprise AI is reliable, secure, and scalable.As a Full Stack Engineer at Human Delta, you will play a pivotal role in developing products central to how large enterprises adopt and manage AI technologies. Our user base includes technical teams and operations leaders who depend on our platform to gain insights into their systems, streamline processes, and understand AI interactions in real-world applications.Your responsibilities will encompass the entire stack: from designing user interfaces to building backend systems, and crafting product experiences that enhance organizational interaction with AI-driven tools. You will have substantial ownership from the outset, contributing to the foundational product architecture in a dynamic environment.

At Samba TV, we leverage cutting-edge technology and proprietary data to track streaming and broadcast video across the globe. Our mission is to revolutionize the viewing experience for audiences everywhere. By connecting media companies with viewers and enabling advertisers to effectively engage and measure their reach across various devices, we offer a unique perspective on culture shaped by our extensive data footprint and AI-driven insights.Join our AI Task Force as an AI Enablement Engineer and contribute to the development of production AI systems that enhance our software development and data management processes. You will be responsible for designing and deploying autonomous agents, tool harnesses, and intelligent workflows that address real challenges faced by our teams.This role requires close collaboration with internal teams to comprehend their workflows, pinpoint areas where AI agents can deliver assistance, and create tailored solutions. You must possess a critical understanding of large language models (LLMs), their strengths, and their limitations.Our team actively utilizes tools like Claude Code and Cursor on a daily basis, so familiarity and enthusiasm for pushing these AI-assisted development tools to their limits is essential.

Are you passionate about building scalable platforms that drive company growth? Join Quizlet Inc. as a Growth Platform Engineer where you will play a pivotal role in enhancing our technology infrastructure. You will collaborate with cross-functional teams to optimize our platform, ensuring a seamless experience for millions of users worldwide.