Product Engineer
The Product Engineer will be an early member of the Web Apps team, focusing on shipping large improvements to Stainless's SDK Studio and building LLM-powered tools. Responsibilities span the full feature lifecycle, from design docs to UI and backend code implementation. The role requires strong experience building modern web applications and a passion for improving developer experience.
Senior Full-Stack Engineer
The role involves shipping end-to-end features, requiring design, coding, testing, deployment, and ownership of both frontend and backend code. Responsibilities include turning user feedback into rapid improvements and mentoring junior engineers. The ideal candidate is a relentlessly resourceful engineer capable of building full stack applications from scratch in a fast-paced environment.
Senior Frontend Engineer
The Senior Frontend Software Engineer will be crucial in shaping user interaction on the Read AI platform, focusing on features for the reporting application, billing system, native apps, and browser extensions using Typescript and React. Key responsibilities include implementing features from designs, collaborating with cross-functional teams on scalable APIs, building responsive user interfaces, and driving product work-streams forward. The role requires 5-7+ years of relevant experience and demands strong problem-solving skills and the ability to thrive autonomously in a fast-paced startup environment.
Full-Stack Engineer
Cogent Security is seeking talented Senior and Staff Engineers to build the world's first AI cyber taskforce composed of AI agents. Key responsibilities include owning the product, designing and implementing the AI product experience for enterprises across various platforms, and building world-class generative interfaces. The role requires deep technical involvement across the full software stack to deliver seamless, performant product experiences.
Product Engineer
The Product Engineer will own and lead engineering projects, working closely with design, research, engineering, and GTM teams to build a high-value customer platform. Key responsibilities include designing, developing, and maintaining critical platform features, ensuring high standards for scalability and security. This role requires strong technical expertise in full-stack development to deliver fault-tolerant code for large enterprise customers.
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Product Engineer, Agent Development Environment
Letta is seeking a Product Engineer to build, design, and define developer interfaces for their Agent Development Environment, SDKs, and Cloud Platform, focusing on transparency and control in AI agent development. Responsibilities involve working closely with designers and researchers to create visual interfaces for agent functionality and interfacing with the open-source community to improve the developer experience. Strong frontend (React) and full-stack skills are required to build applications that allow developers to deeply understand and interact with advanced AI agents.
Senior Backend Engineer at Center.app
Center.app is seeking a Senior Backend Engineer to architect and implement scalable, performant, and reliable backend systems for web3 tools. Key responsibilities include building and maintaining backend services, collaborating on feature launches, writing clean, tested code, and optimizing infrastructure. Candidates must have 6+ years of backend experience, proficiency in TypeScript/Node.js, and strong PostgreSQL skills.
Staff Software Engineer
This Staff Software Engineer role involves tackling complex engineering problems across teams using cloud-native tools and a Python modular monolith architecture. Key responsibilities include architecting scalable systems, building prototypes for creative solutions, and owning end-to-end delivery from design to deployment. Candidates must be proficient in Python or Go and experienced in building complex, scaled systems.
Staff Software Engineer
This Staff Software Engineer role involves actively improving Check's systems by solving difficult engineering problems, primarily within a Python modular monolith utilizing cloud-native tools. Key responsibilities include architecting and building scalable systems, prototyping creative solutions, sharing constructive feedback, and coaching team members through transparent collaboration. Candidates should be proficient in Python or Go and experienced in building and scaling complex, regulated systems.
Product Engineer
Clasp is hiring a founding Product Engineer to help transform the health insurance industry by modernizing and automating the benefits experience. Responsibilities include building the core offering from the ground up, establishing scalable technical foundations, driving product direction, and cultivating partner relationships. This is a ground-floor opportunity requiring 5+ years of system design experience, focusing on shipping software daily while championing user needs.
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Staff AI Engineer
The Staff ML Engineer will be responsible for architecting and building Spara’s AI engine that powers intelligent interactions across chat, email, and voice channels. Key duties involve defining quantitative success criteria, running evaluations, and crafting user experiences through prompt engineering and foundation model orchestration. This high-impact role requires deep technical expertise to shape the product roadmap and drive innovation within an early-stage, experienced team.
Software Engineer
Windmill is hiring a Software Engineer to help build their AI-powered performance review system, which aims to simplify and improve the review process for managers and employees. Candidates should be self-starters with experience in modern technologies, specifically Node.JS, TypeScript, and Postgres. This is an onsite role in New York City, requiring relocation for applicants.
Software Engineer, University Graduate
The Software Engineer role involves developing crucial product features for the HeyGen platform, working across the stack from frontend to backend APIs and ML models. Key responsibilities include designing, developing, testing, and deploying robust features, while also collaborating closely with design and product teams. Candidates should have a Bachelor's degree and prior internship experience, with familiarity across the listed tech stack.
Full-Stack Engineer, Command
The Full Stack Engineer for Command will own the end-to-end product development for Meter's generative UI interface, which allows users to interact with network infrastructure using natural language. Key responsibilities include designing and implementing frontend features using Next.js/React/TypeScript and building/scaling backend services using technologies like Planetscale DB and integrating LLMs into user workflows. This deeply cross-functional role requires shaping the direction of a new kind of intelligent UI by working closely with model, application engineering, and operations teams.
Senior / Staff Frontend Engineer (web & Mobile)
Kindred is seeking a highly experienced Senior/Staff Frontend Engineer to serve as a technology leader for their consumer-facing web (Next.js) and mobile (React Native) applications. Key responsibilities include architecting, building, and scaling features across platforms, contributing to tech stack decisions, and establishing engineering growth alongside the co-founders. The ideal candidate must have 5+ years of experience with deep expertise in both React and React Native environments.
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Senior Software Engineer
Mesa is seeking a Senior Software Engineer to build and drive innovation in their Card and Mortgage products. Key responsibilities include designing and architecting systems to scale massively, innovating on the mortgage product, and establishing engineering best practices for the early team. This role demands an intense pace, strong ownership, and the ability to thrive in ambiguity while delivering outlier results.
Frontend Engineer
Factory is hiring frontend engineers to build human-AI interaction patterns for their core enterprise platform using modern React and TypeScript. Responsibilities include developing intuitive user interfaces, designing scalable platform features, and innovating novel AI-native human-computer interaction patterns. Candidates need a strong technical background and significant experience building scalable web applications with React.
Software Engineer - Full-Stack/Backend
The Software Engineer will design and build full-stack applications to support Reframe Systems' manufacturing operations, focusing on cloud-native services, data pipelines, and user interfaces. Key responsibilities include full-stack development, building data collection workflows, creating mission-critical dashboards, and collaborating cross-functionally to optimize manufacturing processes. The role requires delivering production-ready code at scale and contributing to a culture of innovation within a dynamic startup environment.
Senior / Staff Full-stack Engineer
The Senior Full-Stack Engineer will design, build, and deploy frontend and backend services for Hedra Studio, focusing on web-based video/audio creation tools using emerging standards. Key responsibilities include developing with React/NextJS, building scalable backend services on Kubernetes, and integrating with data/event streaming systems like DynamoDB, SQS, and Kafka.
Senior Software Engineer, Platform
Anduril is hiring Senior Software Engineers to develop and maintain foundational systems for their Lattice Platform, which powers defense technology products. Responsibilities include designing core infrastructure components, developing platform services for scalability, and working with technologies like simulation, data management, and compute infrastructure. Candidates must be self-motivated, thrive in a high-autonomy environment, and possess significant engineering experience.