2,916 Founding Engineer jobs
Founding engineer roles building the first product at early-stage startups.
Senior Software Engineer, Infrastructure
Designs and maintains a serverless-first AWS infrastructure (Lambda, Step Functions, Aurora) for a healthcare platform that supports patients with chronic and rare diseases, ensuring reliability and scalability.
Software Engineer
Software engineer at an early-stage AI startup building tools for in-person sales and coaching. You ship full-stack product features from concept to production using React/React Native, TypeScript, Python, and AWS, working on-site in New York five days a week.
Senior/Staff Software Engineer
Senior/Staff full-stack engineer on a cybersecurity product team building tools for the U.S. federal defense industrial base, owning features from planning through deployment and mentoring engineers. Core stack: TypeScript, React, GraphQL, and Ruby on Rails, with Rust or Node.js on new products. Hybrid in Canada.
Senior Software Engineer
Backend engineer on a fintech team building mortgage-servicing software: owning features end to end, scaling distributed systems for financial transactions and federal/state/agency regulations. Stack includes Python, React, Docker, Kubernetes, and Google Cloud Platform, with daily use of AI coding tools like Copilot or Cursor.
Founding Engineer
Founding engineer at an early-stage startup building AI software for enterprise procurement. You'll ship full-stack features end to end — TypeScript/Python, Next.js, PostgreSQL/Supabase — and design reliable LLM workflows with evaluation loops and observability, on-site in Berlin.
Junior Software Engineer – Robotics & Autonomous Systems
Junior software engineer at a defense tech company building unmanned surface vessels. Day to day: develop, test, and debug software in Python or C++ for autonomous maritime systems, including embedded work with microcontrollers and sensors, hardware integration, and some frontend/database tools. Onsite in Clearwater, Florida.
Software Engineer - Platform
Authentic is a tech-enabled MGA (managing general agent). We design and run insurance programs for specific kinds of businesses, like restaurants, gyms, and power producers. Brokers bring us the businesses that need…
Sr. Software Engineer - Product
Senior product engineer at Authentic (an insurtech platform for broker-built insurance programs) who leads design and delivery of complex features end-to-end — building polished, responsive web interfaces with TypeScript and React, collaborating across APIs/backend, and mentoring other engineers.
New Grad Software Engineer
Entry-level full-stack engineer at Authentic, an insurtech that builds program-insurance infrastructure. Day to day: ship features across a React frontend and Python/FastAPI backend, build internal tools, and work with data systems driving risk assessment and claims. On-site in New York.
Software Engineer, Foundations
Builds and owns the shared platform services behind Clasp Talent — user management, SSO, role-based access control, notifications, and data-exchange APIs with employers, schools, and partners — taking them from design through production in a DevOps culture. Core stack: Python, TypeScript/React, PostgreSQL, AWS/GCP, CI/CD, with AI-assisted development.
Software Engineer Intern at Code Craver – Islamabad 2024
Full-time, on-site software engineering internship at tech startup Code Craver in Islamabad, contributing to real web applications alongside senior engineers. Work spans front-end and back-end development using languages like JavaScript, Python, Java or C++, plus databases and Git.
Software Engineer
Full-stack software engineer at an AI startup in London who owns AI-enabled features end-to-end using React, TypeScript, and Python — working directly with users and founders to decide what to build, shape architecture, and help a small team build, ship, and scale.
Software Engineer Python - Energy Optimisation
Backend-focused Python software engineer at a Dutch energy-tech startup that connects distributed energy assets (HEMS/battery optimisation) to balance grid demand. You own projects across the full development lifecycle in a small team; mostly remote in the Netherlands with weekly Amsterdam office meetups, salary to €60k plus stock options.
Software Engineer
Software engineer at PointOne, an AI revenue platform for professional services (law firms), building novel AI products in-person in New York City. The role involves owning critical projects and full products, working directly with customers, and mentoring future hires.
Senior Software Engineer
Senior Software Engineer at PointOne, a venture-backed AI revenue platform for professional services (law firms), building novel AI products in-person in New York City. Engineers take ownership of critical projects and entire products, work directly with customers, and shape engineering culture through mentoring and code reviews.
Software Engineer (F/H)
As an AI System Engineer at Illuin in Paris La Défense, you design, build and industrialize AI/data solutions for demanding client projects and the company's own products: custom software, scalable data pipelines, and MLOps/AI systems on cloud or on-premise, in agile sprints with direct client interaction. Core stack spans Python/Java/TypeScript, SQL/NoSQL, data architectures, Docker, CI/CD.
Software Engineer, Product
Full-stack product engineer on LabOS, Adaptyv Bio's platform that orchestrates an automated wet lab: building APIs, scheduling systems, and AI agents so scientists and AI models can run biology experiments. Stack is TypeScript, React, Node, and Postgres.
Lead Software Engineer
Hands-on lead engineer at a Zurich startup building Solskin, a climate-adaptive solar facade that uses AI to control building shading and energy use. You code daily across the full stack — Python/FastAPI backend, PyTorch controllers, embedded C/C++ on STM32, React frontend — and set software direction with the CTO.
Software Engineer (Java) - Logistics
Develops and maintains logistics software in Java/Spring, React, and cloud infrastructure to optimize delivery routes and warehouse operations for a sustainable grocery scaleup.