2,916 Founding Engineer jobs
Founding engineer roles building the first product at early-stage startups.
Java Engineer
Backend-focused software engineer (Java title) who designs, builds, and ships production-ready APIs, backend services, and integrations using Node.js, Python, or Java, while integrating AI/LLM capabilities and contributing to frontend work (React/Vue) when needed. Long-term hybrid role: 1 day/week at a Palermo, Buenos Aires coworking space.
Node.js Engineer
Backend-focused engineer who designs, builds, and ships production APIs, backend services, and integrations using Node.js, Python, or Java for RYZ Labs' startup portfolio, integrating AI/LLM capabilities and occasionally contributing frontend work in React or Vue. Long-term hybrid role with 1 day/week in Palermo, Buenos Aires.
Python Engineer
Long-term hybrid role (1 day/week at a Palermo coworking space in Buenos Aires) for a senior backend engineer to design, build, and ship production APIs and backend services using Python, Node.js, or Java, integrating AI/LLM capabilities, with occasional frontend work in React or Vue.
Software Engineer, Growth
Growth engineer at AIOS (Fella Health), a fast-growing AI-doctor healthcare startup. You build and iterate conversion funnels — landing pages, quizzes, checkout, A/B experiments, tracking/attribution and AI conversational funnels — with a small funnel team. Full-stack TypeScript stack; hybrid, 2 days/week in Prishtina.
Member of Technical Staff - AI Agent Systems
At Warp Sciences, you'd build and operate a fleet of AI agents and coordination infrastructure — a 'software factory' that develops, tests, and maintains the software and robotics behind automated drug-discovery labs. Core work spans agent harnesses, orchestration, evaluation, and cloud-to-edge/robotics integration.
Member of Technical Staff - Post Training
Post-training research engineer/scientist at Warp Sciences who owns the full post-training loop — evals, data curation, RL training, and deployment — to improve model capability and reliability across the company's robotics, perception, and cloud foundation-model stack powering automated labs for drug discovery.
Senior SCADA / PPC-EMS Systems Engineer
Owns PPC/EMS product requirements, device-driver integration and lab validation, acceptance criteria, and automated system-level testing (including HIL) for utility-scale renewable power plants at TAR, which builds off-grid renewable power plants for data centers. Core stack: SCADA/EMS architecture, plant networking, and industrial protocols like Modbus, DNP3, and IEC 61850.
Software Engineer
Builds and maintains Ampotech's enterprise-level IoT platform on AWS/Azure cloud components, supporting existing IoT infrastructure and projects for building electricity-usage analytics. A junior role (fresh grad to 2 years) requiring Python, web application development, and IoT data/device management skills.
Software Engineer
Software engineer at Blossom Health, a Series A mental-health startup, building AI-native products for clinicians and patients: LLM-powered systems, agents, and eval/monitoring infrastructure for healthcare workflows. Requires 2+ years SWE experience, Python/TypeScript, and in-person work in NYC 5 days a week.
Engineering Manager
Engineering Manager leading the team behind Cadence's Clinical Intelligence platform — AI-driven medication recommendations and clinician decision support for chronic care. Day to day: hiring and mentoring AI/backend/full-stack engineers, setting architecture and reliability standards, and shipping Go backend and LLM-powered services on AWS/GCP.
Software Engineer (All Levels)
Builds and maintains backend services for a remote patient monitoring platform that supports clinicians in managing chronic disease care for millions of U.S. patients using cloud technologies.
Software Engineer - Platform (All Levels)
Build and scale security infrastructure for a clinical AI platform, embedding compliance and risk controls into cloud, Kubernetes, CI/CD, and AI governance systems to protect patient data and ensure responsible AI deployment.
Vehicle Autonomy Integration Engineer
Hands-on integration engineer role bringing HavocAI's autonomy software onto real robotic platforms — autonomous vessels, drones, and ground vehicles. Day to day you wire up autopilots (MAVLink), sensors (GPS/INS, lidar, cameras), and vehicle interfaces (CAN, serial, Ethernet), plus bench, hardware-in-the-loop, and field testing from the North Kingstown, RI facility.
HV Systems Integration Engineer
Harbinger Motors, a commercial electric vehicle company, is hiring a High Voltage Systems Integration Engineer in Garden Grove, CA to own end-to-end bring-up, commissioning, and architecture of high-voltage power systems (MW-scale generators, battery aux power, inverters, chargers) for its EV platform. The role blends electrical integration with Python/C++ test automation and ~50% domestic and int
Senior Forward Deployed Software Engineer
Saronic is hiring a Senior Forward Deployed Software Engineer in Austin, TX to integrate, deploy, and debug its autonomous maritime vessel software in real-world field conditions. The role blends C++/Rust/Python development with networking, sensor integration, and autonomy tuning, including up to 50% field deployment.
Software Development Engineer
Full Stack SDE I at NxtWave (edtech) in Hyderabad: design and ship user-facing features across frontend, backend (Node.js/Python), REST/GraphQL APIs, and databases, with testing, containerization, and CI/CD. Offers 15-18 LPA fixed plus a 9-lakh retention bonus over 3 years.
Senior Software Engineer, Optimizer (Remote, USA) (USA)
Builds the schedule-optimization engine at an edtech startup whose platform generates school master schedules for ~500,000 students: turns school constraints into mathematical optimization models (Gurobi, Google OR-Tools CP-SAT) and the backend/AWS systems around them; ~80% backend, 20% frontend.
Senior IT Systems Engineer
Ditto, a startup building a peer-to-peer edge data sync platform, seeks a Senior IT Systems Engineer to automate IT operations: converting services to infrastructure as code (starting with GitHub Enterprise Managed Users via Terraform), monitoring core IT services, doing ~30% help desk work with a goal of automating it, and partnering with security on hardening. Must be US citizens based in the At
Systems Software Engineer, NPU Management Interface
Develops firmware/software for NPU management interfaces, handling communication between host systems and AI accelerators via protocols like MCTP/PLDM, while ensuring telemetry, health monitoring, and compliance with industry specs.