YC Work at a Startup - IT - Software Development

Join our team in San Francisco as a Software Engineer for the Data Engine. You will build robust systems and tools to collect, process, and manage large-scale robotic training datasets. This role requires expertise in Rust/C++ and involves hands-on work across hardware, software, and data pipelin...

Join Channel3 in NYC to build the database powering AI commerce. Develop backend systems using computer vision and multimodal models to understand billions of products. This role focuses on building reliable, cost-efficient search and deduplication at scale. Enjoy team dinners and a fully stocked...

Join Channel3 as a Fullstack Engineer in New York to build the definitive internet product database. You'll leverage Python, TypeScript, and React to shape merchant-facing tools and pioneer agentic commerce UX. This role offers ownership of frontend architecture in a fast-paced environment with t...

Join mcp-use as a foundational Cloud Engineer in San Francisco or Zürich. Design and build our scalable, secure cloud infrastructure from the ground up for our popular open-source MCP platform. You'll architect systems for thousands of users, ensuring reliability, performance, and seamless privat...

Join mcp-use to build leading open-source dev tools for the Model Context Protocol (MCP). Develop the premier platform for deploying MCP servers and agents, enhancing our popular SDK used by NASA, SAP, and 5,000+ companies. We seek a brilliant, high-agency software engineer passionate about LLMs ...

Join our Amsterdam team as a Full-Stack Developer. Build autonomous AI agents that manage e-commerce support end-to-end. You'll ship features fast, using AI tools daily to multiply your impact. We seek resourceful builders who own outcomes and think in systems.

Join Hypercubic as a Founding Software Engineer in San Francisco. Shape AI systems that analyze and rearchitect critical legacy enterprise applications. You'll work directly with the CTO, owning architecture and product direction from prototype to production. This role demands strong fundamentals...

Join as a Founding GPU Kernel Engineer in San Francisco. Hand-tune and optimize low-level GPU kernels for ML workloads, pushing hardware limits. Deep expertise in CUDA/ROCm, profiling tools, and GPU assembly is essential. Receive equity, bonus, benefits, and relocation assistance in this pivotal ...

Join Leadbay in San Francisco as a Frontend Engineer. You will build an engaging sales app using React and TypeScript, developing smart crawlers and AI-powered tools. This role requires US citizenship/visa and offers equity compensation. Shape the future of B2B lead generation.

Join as a Founding Engineer to architect the Unity mobile app for Pax Historia from scratch. You will build the core gameplay loop, optimize for mobile performance, and integrate with backend services. This role requires 3+ years of experience shipping polished Unity apps to iOS/Android stores. B...

Join Truth Systems as a Founding Full-Stack Engineer in San Francisco. You'll build our core trust & safety platform from 0→1 using React, TypeScript, Next.js, and Python. We seek a product-focused, empathetic builder with strong full-stack skills. Receive meaningful equity (0.3-1%) and comprehen...

Join Verne as a founding Robotics Data Infrastructure Engineer in San Francisco. Architect and deploy critical AWS and edge data pipelines for real-world robots. You'll manage large-scale multimodal datasets and build MLOps tooling, directly impacting production systems. Requires strong Python, A...