2,918 Founding Engineer jobs
Founding engineer roles building the first product at early-stage startups.
Engineering Manager, Product
Hands-on engineering manager leading a product engineering team at Doctronic, building AI health guidance products. The manager codes, guides architecture, debugs production, and ships alongside the team across a Next.js/React/TypeScript app, Swift/Kotlin mobile apps, and Python/FastAPI backend, working AI-natively with coding agents.
Head of Flight Software Engineer
Fortastra, an early-stage spacecraft startup in Torrance, CA, is hiring a Head of Flight Software Engineer to build its flight software stack end-to-end on-site — embedded software for flight computers/sensors, ground-side mission operations and telemetry tools, plus CI/CD, simulation, and hardware-in-the-loop testing for autonomous national-security spacecraft.
Flight Software Engineer
Founding flight software engineer at Fortastra, a seed-funded spacecraft startup, building the end-to-end flight software stack for autonomous national-security spacecraft — ground-side mission operations tools plus vehicle-side embedded flight software. On-site in Torrance, CA, working closely with avionics, GNC, and systems engineers.
Staff Software Engineer
Leads the architecture and development of a scalable distributed test framework in Golang that automates hardware testing across labs and manufacturing lines for Amperesand's solid-state transformer power products. Blends software leadership (Go, distributed systems, MES/database integration) with hands-on test hardware bring-up and team mentoring.
Engineering Manager
Leads a team of ~7 engineers building the real-time, high-throughput trading systems (matching, order management, pricing, settlement) behind ProphetX's CFTC-regulated sports prediction market exchange. A hands-on post-Series A leadership role spanning delivery, architecture, hiring, and coaching, with a Go/Java/C++/Python, Kafka, AWS, and Kubernetes stack.
Staff Software Engineer in Test (Modeling and Simulation)
Founding Staff SDET on Code Metal's Modeling & Simulation team, designing and building the automated validation architecture for a wargaming and decision-support platform serving the U.S. DoW. Hands-on Python/pytest test infrastructure, CI reliability, and testing of distributed, stateful, and AI-assisted simulation workflows.
Internship - Software Engineering
Veeda AI, a startup building multimodal foundation world models for Physical AI, is hiring a software engineering intern in Toronto (hybrid) to build data ETL/lake tooling and frontend/backend data-visualization systems used by AI researchers. Requires OOP skills, web development familiarity, and comfort using AI as a productivity tool.
Staff Software Engineer, Agentic Factory and Operations Software
Senior/Staff full-stack engineer in Singapore (on-site 5 days/week) who owns features end to end across Amperesand's ERP, MES, and intranet platforms: building Go backend services and React/TypeScript frontends for manufacturing and internal workflows, plus shipping AI/LLM-powered features like retrieval-augmented search on sensitive internal data.
Software Engineer, Knowledge Engine – Query Engine
Owns the query engine for Exa's knowledge platform, searching hundreds of billions of claims across graph, vector, full-text, time-series, and geospatial backends. Daily work spans storage/index design, cost-based query planning, latency optimization at thousands of QPS, and consistency under live updates, using a systems language like Go, Rust, or C++.
Senior Software Engineer
Senior Software Engineer at Develop Health, a startup using AI to automate medication benefit verification and prior authorization. A hands-on full-stack role: build Python services and APIs, TypeScript/React interfaces, integrations, and AI-powered workflows for production healthcare software.
Senior Software Engineer
Senior Software Engineer serving as lead IC on a backend AI team, designing and shipping production-grade agentic AI systems for healthcare revenue cycle management. Core stack is Python (FastAPI/Flask) with agent orchestration frameworks like LangGraph/LlamaIndex on AWS, working from the NYC office 3+ days per week.
Senior Systems Integration Engineer
Architects mimic robotics' Industrial Context Protocol and OTA integration strategy, bridging the company's AI/robotics stack with factory systems (PLCs, SCADA, MES, Industry 4.0/IoT), while hands-on deploying and debugging robot stations on customer sites. Core tech: industrial protocols (OPC UA, Modbus, PROFINET, EtherCAT), Linux, Python/C++/Rust, ROS2.
Software Developer
Full-stack software developer at KerrOS building what it calls the first AI Operating System — designing APIs and services that let AI agents create their own tools and orchestrate workflows, plus the user interfaces on top. Remote anywhere in Sweden or from the Stockholm office, working with modern open-source tooling.
Senior Software Engineer
Senior engineer building an AI-powered coding platform that automates software development tasks, using TypeScript and Kotlin in a fully remote, early-stage startup.
Software Engineer, Pub/Sub
Our everyday digital experiences are in the middle of a realtime revolution: chatting alongside a livestream, getting realtime financial updates, or working with colleagues in a shared online space. Consumers now…
Staff Software Engineer, Data
First dedicated data platform engineer at Gradial, owning the data layer end to end: Postgres data modeling, multimodal indexing and search (images, PDFs, text), and pipelines keeping large enterprise content in sync, plus the company-wide warehouse and self-serve tooling. Core stack centers on PostgreSQL, data pipelines, warehouses, and embedding/hybrid retrieval search.
Staff Software Engineer
Build and scale the distributed systems powering an AI agent platform that automates software development and knowledge work, using JavaScript, JVM languages, and cloud infrastructure.