2,916 Founding Engineer jobs
Founding engineer roles building the first product at early-stage startups.
Software Engineer - Storage Infrastructure (Senior+)
Build and maintain scalable storage infrastructure for an AI-driven cybersecurity platform, focusing on backup, observability, and agent-forward operations across Aurora, ClickHouse, and Kafka.
Software Engineer - Infrastructure (Senior+)
Build and secure the infrastructure backbone for an AI-driven cybersecurity platform, optimizing data storage, hardening systems, and enabling on-prem deployments for enterprise customers.
Software Engineer
Full-stack engineer at a venture-backed healthcare AI startup (~20 people, NYC) building and operating production features for AI agents that handle patient communication workflows like scheduling, billing, and refills. Core stack: TypeScript, React, Node.js, PostgreSQL. On-site 5 days/week; $150K–$230K + equity.
Software Engineer
On-site back-end software engineer (0-2 years) in New York for a small bootstrapped company building real-time quantitative pricing and bidding systems for a high-volume consumer marketplace. Day to day: maintain and extend pricing/bidding engines, data pipelines, ops automation, and integrate ML models in production, using Python on AWS or GCP.
Staff Software Engineer
Hands-on Staff Software Engineer and founding tech lead at a seed-stage healthcare AI startup building AI agents that automate clinical trial workflows. You'll ship AI-powered products end-to-end (LLM features, agentic workflows), mentor three junior engineers, and work hybrid from San Francisco's Financial District.
Senior Software Engineer (C++)
Boxbot is hiring a Senior C++ Software Engineer in Alameda, CA to build high-performance software that controls robotics, sensors, PLCs, and warehouse automation hardware. Day to day is hands-on coding and debugging across software/hardware boundaries, architecting reliable real-time systems, and partnering with cross-disciplinary teams on deployments.
Senior Software Engineer
CoreConnect, a venture-backed startup building a marketplace for creator-led advertising, is hiring a Senior Full-Stack Software Engineer in Williamsburg, Brooklyn (on-site 5 days/week). You'll own features end-to-end from concept to launch using React/Next.js on the frontend and Python/Django/Postgres on the backend.
Software Engineering Intern
About Base Base is America’s next-generation power company. We’re rebuilding the foundation of modern civilization–electricity–by deploying a vast network of distributed batteries that is transforming today’s fragile,…
Staff Software Engineer
Staff Software Engineer at Skyways (autonomous long-range cargo aircraft) sets technical direction across the full software stack: 3D web mission-planning UIs (SkyNav), Python backend/telemetry services, and C++ in an ArduPilot fork, while setting standards, mentoring, and leading high-risk architecture for real flying aircraft.
Founding Engineer
Fractional (10-15 hrs/week, equity-compensated) founding engineer owning technical strategy, architecture, security, and engineering practices for Duets Network's AI-powered platform that matches startups with investors in sports and entertainment. Core stack: React, Node.js, PostgreSQL, AWS, GitHub, Stripe.
Member of Technical Staff, India
Full-stack generalist who designs, builds, deploys and debugs the internal software platform behind Human Archive's large-scale data collection and annotation operation — schemas, APIs, annotator tooling, ingest and reporting. Primarily Python, FastAPI, PostgreSQL and React/TypeScript, running on AWS.
Staff / Principal Software Engineer, Detection and Response
Build and lead detection and response systems to stop attackers across corporate, production, and AI-agent surfaces using modern SIEM, EDR, and cloud telemetry.
Software Engineer
Contract software engineer (one of the first engineers) at Certive, an early-stage compliance platform for insurance and real estate brokerages. You'll work directly with the founder across the stack, building license-data integrations, renewal-filing automation, and a tracking dashboard, using AI tooling for structured data. $6,000/mo, fully remote within the US.
Founding Engineer - Equity-Only Compensation (Up to 10% Equity + 20% of Profit)
Equity-only founding engineer to build the entire unbuilt product surface of Seen in Search, a remote, pre-revenue SEO/AI-search-visibility tool that scans what AI engines say about a company and executes fixes. You'd build the app shell, auth, public scorecards, and exports, and own deployment (TypeScript, Next.js, Postgres).
Lead Robotics Systems Engineer - 1099 Contractor
Freelance (1099) hands-on lead robotics systems engineer acting as technical product owner for a person-following mobile robot aimed at consumers and light construction: auditing existing engineer workstreams, defining MVP/prototype scope, and owning PRD and system architecture across mechanical, electrical, firmware, and software.
Founding Engineer & Technical Lead
Hands-on founding engineer and technical lead for an AI-native childcare and early-education SaaS platform (equity-only, fractional to start). You own production architecture, security, Stripe Connect payments, and PostgreSQL/Supabase reliability while hardening and shipping full-stack TypeScript/Next.js features alongside the founder. Remote within the U.S.
Systems & Integration Engineer (Founding Team Path)
Mid-level backend engineer joins TCS-i's founding team to architect the production integration layer around its 3D packing optimization engine: building Python/FastAPI REST APIs, industrial data pipelines, validation layers, automated test suites, and Docker/GCP CI/CD. Fully remote within the UK or hybrid in Birmingham.
Founding Engineer
Founding engineer at Paygrid, an early-stage stablecoin payments startup, turns a manual clearing/settlement process into production software — building admin tooling, partner-facing APIs, and FX matching/netting systems in TypeScript, with real ownership of the stack working directly with the founder.