2,916 Founding Engineer jobs
Founding engineer roles building the first product at early-stage startups.
Software Engineering Intern - Waterloo University
Brave is hiring two fall-semester software engineering interns from Waterloo University to work remotely: one building data-intensive ETL/LLM-powered backend services (Python, TypeScript, Kubernetes), and one shipping privacy/security features in the Chromium-based Brave browser using C++ or Rust. Pay is $6000/month for 3 months.
Software Engineer - December 2026 Graduates
Meow, a fintech giving startups business accounts and corporate cards, is hiring a new-grad software engineer in New York City to build full-stack features end to end. The stack is TypeScript, React, Python (FastAPI), and Postgres, with heavy emphasis on reasoning about financial state machines and 3rd-party APIs.
Software Engineer Intern
ConductorAI is hiring a Software Engineer Intern to work on its core product: a web platform for large-scale document search, review, and AI-powered workflows serving defense, government, and regulated commercial clients. Interns build production Next.js/React features, backend APIs, and document-processing pipelines that push LLMs to their limits, with mentorship from full-time engineers.
Founding Engineer - Ambient Care Startup
First engineering hire (founding engineer) at Subtle, a pre-seed startup incubated in Founders Factory building ambient in-home sensing for elderly and vulnerable people. The hands-on role spans hardware validation and manufacturing, embedded/software for sensor detection and alerting, regulatory/PII compliance, and eventually hiring and leading engineers.
Playable Game Developer
Builds polished HTML5 playable browser games from advertiser briefs end to end — concept, implementation, assets, testing, and variations — fully remote across Latin America. Core stack is JavaScript/TypeScript with browser-game frameworks like Canvas, PixiJS, Phaser, Three.js, PlayCanvas, or Cocos Creator, plus AI-assisted workflows.
Software Engineer
Back-end software engineer (0-2 yrs) joining an early-stage, venture-backed creator marketplace startup (~25 people) in NYC, owning back-end systems on a small team including an upcoming database migration. Stack is Postgres and TypeScript with heavy AI-assisted development; on-site 5 days/week.
Senior Software Engineer, Controls
Owns the locomotion stack for GRAM's six-legged magnetic-climbing Insectoid robot, getting it walking reliably and traversing steel lattice structures using learned policies, perception-conditioned foothold selection, and magnetic adhesion. Core tech: C++, Python, ROS 2/Drake-style robotics frameworks, RL, and sim-to-real.
Senior Software Engineer
Senior Software Engineer in Mumbai builds and scales robust data systems and backend services for a high-growth venture builder across FinTech, EdTech, and GovTech, using Python/Java, SQL/NoSQL, and cloud platforms like AWS/Azure.
Senior Software Engineer
Senior Software Engineer builds and scales robust, production-grade data systems and backend services across a multi-venture portfolio, using modern languages, cloud platforms, and DevOps practices.
Senior Software Engineer
Senior engineer building AI-driven financial advice systems for banks and wealth managers, using Python, FastAPI, and distributed architectures to ensure auditable, compliant outputs in a regulated domain.
Software Engineer
Software engineer at AlliedOffsets, a carbon-market data startup, working at the intersection of backend development and data science: extending the data pipeline, building the public API, and contributing to full-stack client products. Core stack is Python (Flask/Django/FastAPI) with PostgreSQL and cloud DevOps, plus JavaScript/Vue on the front end.
Software Engineer
Software Engineer at Arondite, a London-based defence technology startup, building core software platforms and UIs that let autonomous systems and robots collaborate and process large sensor datasets. Full-stack role using server-side languages (C++, Java, Rust, Python) or TypeScript/JavaScript with Angular/React, office-first in London with UK security clearance required.
Software Engineer
Full-stack Software Engineer building on-chain infrastructure for digital capital markets. You will design and maintain scalable solutions for tokenizing alternative assets using TypeScript, NestJS, and React within an Agile team.
System Software Engineer, Linux Driver and Driver Adjacent
Build the Linux kernel driver stack (PCIe, memory management, DMA, interrupts) and low-level userspace libraries for MatX's AI accelerator silicon, from pre-silicon simulation/emulation/FPGA testing through first-silicon bring-up and performance tuning. Core tech: C, Linux kernel, PCIe, hardware debugging.
Senior Software Engineer
Senior (or Principal) backend engineer at Soma Energy in Vancouver (hybrid) building the core infrastructure, APIs, and distributed services that turn real-time grid telemetry into timely, reliable dispatch decisions for large electricity users. Work centers on backend systems in languages like Python, Go, Rust, or C++ where correctness, latency, and reliability are critical.
Member of Technical Staff, Engineering Manager
SkyPilot is hiring its first Engineering Manager to build and lead a team of distributed systems and AI infrastructure engineers while staying hands-on with the platform (Kubernetes/Slurm, GPU workloads). The manager also acts as product manager, turning customer input into a prioritized roadmap alongside the founders.
Software Engineer, Agents [REMOTE - Canada]
11x is hiring a remote (Canada-based) product-minded fullstack engineer to build the core experiences powering its AI agents — from user-facing product features to systems that orchestrate and deploy autonomous agents. Core stack is TypeScript, React, NextJS, and NodeJS, with work hours aligned to Pacific Time.
Staff/Senior Software Engineer, Document Intelligence & Data Infrastructure (Helios)
Build and operate the ingestion and document-processing infrastructure behind Helios's Proxi platform, which turns global public-sector data into searchable intelligence — spanning web crawlers, fault-tolerant pipelines, OCR/document conversion, and multilingual audio/video processing. Full-time, on-site in New York City.
Staff/Senior Software Engineer, Agent Engineering (Helios)
Senior/staff engineer owning the agent runtime behind Proxi, Helios's AI platform for understanding government activity. Day to day: build orchestration for long-running multi-agent workflows, tool/action frameworks with permissions, retrieval and memory, model routing, evaluation, tracing, and security for production LLM agents. On-site in SoHo, NYC five days a week.
IT Systems Engineer
Owns all IT for a Physical AI robotics company: internal infrastructure and PC fleet management (Linux, Ansible), GPU/kernel troubleshooting at customer production sites, government enclave compliance, and DevOps-adjacent tasks like VPN, DNS, and CI runner uptime.