2,918 Founding Engineer jobs
Founding engineer roles building the first product at early-stage startups.
Software Engineering Co-op
A paid co-op student position (starting January 2027) on Moment Energy's engineering team, building the cloud platform behind its second-life battery energy storage products. The work is full-stack: front-end web interfaces for the BMS portal, backend APIs, database schemas, and IoT integration with battery hardware, using modern web frameworks, databases, cloud platforms, and Git.
Senior/Staff BEOL Process Integration Engineer
Owns the back-end-of-line process integration for an advanced photonic AI chip at a Belgian foundry, ensuring yield, reliability, and performance while bridging Neurophos’s design intent with foundry execution.
Senior Software Engineer, Voice AI
Senior Software Engineer on Cloaked's Call Guard team building real-time voice AI that screens unknown callers and blocks scams autonomously. Day to day: design production voice agents, cut conversational latency across STT/LLM/TTS, defend against adversarial AI callers, and run telephony/VoIP infrastructure using Python or Go on AWS/GCP.
Staff Software Engineer, Agents
Staff engineer at Nominal (New York) who architects the platform behind its AI agents: building the agent harness (orchestration, planning, tool calling, memory), a shared tool layer exposed via MCP, and retrieval over large hardware test data, working with frontier LLMs and strong distributed-systems fundamentals.
Software Engineer, Agents
Software Engineer on Nominal's Hardware Intelligence team in New York: architect the platform that Nominal's agents, its MCP, and internal company agent run on. Day to day you build agent tools and workflows, grow MCP integrations, and ship LLM features (prompting, tool design, retrieval) for hardware test and operations.
Software Engineer
Credal is hiring a founding full-stack software engineer to work in-person at its Brooklyn, NY HQ, owning scalability, stability, and security as it syncs billions of records into its secure AI agent platform. The stack is React/TypeScript/Next.js on the frontend, TypeScript/Temporal/PostgreSQL on the backend, and AWS/Terraform/Kubernetes in the cloud.
Senior/Principal Software Engineer
Endurance (modular subsea geothermal power plants) is hiring its first software engineer for test and automation infrastructure. Day to day: building firmware, data acquisition and visualization tools, hardware-in-the-loop/simulation environments, and eventually factory automation — in Python, Rust, C/C++ alongside industrial controls (PLC, DAQ, EtherCAT, etc.).
Senior Software Engineer - OS, Robot Software
Senior engineer building the embedded OS platform for Wayve's autonomous driving fleet: maintaining bespoke Linux and QNX distributions, kernels, device drivers, and Yocto-based builds, plus high-throughput IPC middleware and remote diagnostics in C/C++ across NVIDIA Jetson and DRIVE platforms.
Electronics and Data System Engineer
An Electronics and Data System Engineer at Infinite Orbits defines, designs, and validates the onboard data handling (DHS) architecture for GEO satellite missions — specifying OBC, TM/TC interfaces, and data buses (RS-422, Ethernet, CAN), and supporting integration and testing. Core tech includes ECSS/PUS, CCSDS TM/TC protocols, SCOS-2000/EGSE tooling, and Python/Tcl test scripting.
Part-Time Python Developer | Django/Flask, SQL, Cloud
Part-time Python developer at RapidFix Services in Multan building backend features for web applications using Django or Flask, with SQL and cloud in the stack. The role includes writing tests and team collaboration; prior experience is not required but willingness to learn is essential.
Software Engineer, AI Libraries
A software engineer on Wayve's AI Libraries team builds Python platforms, tools, and reusable abstractions that let ML engineers train, evaluate, and deploy autonomous-driving models at scale on thousands of GPUs. Core work spans multimodal data loading, distributed training/inference, checkpointing, and observability, using PyTorch/TensorFlow and cloud environments like Azure.
Senior Software Engineer, Reliability Engineer
Site Reliability Engineer at Wayve (autonomous driving AI) in Leonberg, keeping the systems behind AV fleet operations reliable — monitoring live health, running incident response and on-call, and building automation, SLIs/SLOs, and remediation tooling using Python/C++/Rust, Linux, Kubernetes, and observability stacks like Datadog, Prometheus, and Grafana.
Member of Technical Staff, Engineering Manager
Hands-on engineering manager to lead Coram AI's entire Sunnyvale, CA engineering team, owning parts of its edge AI platform, cloud infrastructure, and customer-facing engineering. The role blends people management and scaling the team 2-3x with staying technical through architecture, code review, and debugging of its computer-vision video security product.
Software Engineer - Simulation Platform
Build and maintain the simulation platform for stellarator fusion design: automating large-scale scientific computing workflows, cloud-based data storage/management, and collaborative apps (with AI tooling where useful), while working hands-on with researchers. Core stack is Python, with optional React/TypeScript/FastAPI and cloud skills.
Senior Robotics Autonomy Software Engineer
Senior robotics engineer who owns core capabilities of BeeX's hovering autonomous underwater vehicles (HAUVs), working hands-on across simulation/HIL testing, sensor integration, SLAM and path planning, mission autonomy, and real ocean field trials. Core stack is C++/Python on Linux with ROS1 and PyTorch.
Senior / Staff Systems Engineer, AI Validation
Senior/Staff systems engineer owning end-to-end, simulation-led validation of Wayve's AI Driver behavior — defining metrics, automated tests, scenario coverage, and acceptance criteria for driving competencies like intersections and lane changes. Core work is in Python-based evaluation tooling, SQL/large datasets, and simulation-based testing.
Staff Software Engineer, Billing and Monetization
Staff engineer who owns Hercules' billing, payments, and monetization infrastructure end to end — subscriptions, usage-based/AI-credit billing, and payment provider integrations (Stripe, Adyen, PayPal) — with emphasis on reliable, low-latency systems at scale. Core stack: TypeScript, React, Postgres, Redis, and Temporal.
Staff Software Engineer, Growth & Experimentation
Staff-level growth engineer owning experimentation and revenue across the full customer journey at an AI software-development company — landing page conversion, signup activation, free-to-paid upsells, retention, and expansion — using A/B testing platforms, SQL analytics, and a TypeScript/React/Postgres stack.