2,916 Founding Engineer jobs
Founding engineer roles building the first product at early-stage startups.
Software Systems Engineer III
Leads spacecraft software architecture and systems engineering for next-gen Ranger spacecraft, defining interfaces, requirements, and mission operations while collaborating across flight software, autonomy, and GNC teams.


IT Engineer - San Francisco
IT Engineer in San Francisco who owns HappyRobot's internal technical operations: identity and access (Okta/Entra ID SSO, SCIM), device management via MDM (Jamf/Iru/Intune), Google Workspace/M365 administration, onboarding/offboarding, and automating repetitive IT work with scripts and workflow tools.
Senior Software Engineer, Perception
Senior/Staff engineer building the multi-modal perception stack for Gatik's Level 4 autonomous middle-mile trucks — designing object detection, tracking, and sensor-fusion components, training and evaluating models, and building large-scale training/inference infrastructure. Core tech: modern C++, Python, OpenCV, CUDA/TensorRT, Docker/Kubernetes, TensorFlow/PyTorch, on-site in Santa Clara, CA.
Senior Software Engineer, Motion Planning
Senior/staff engineer on Gatik's planning team building motion planning and decision-making systems for its Level 4 autonomous middle-mile trucks — designing lattice, sampling, and optimization-based planners in C++ and maturing them through simulation and on-road production deployment. Onsite 5 days/week in Santa Clara, CA.
Senior Software Engineer, Localization
Senior/staff engineer on Gatik's Localization team builds real-time localization for autonomous middle-mile trucks: designing sensor-fusion and odometry algorithms that combine IMU, GPS, and lidar data, developing SLAM for highway and urban routes, and tuning the stack for accuracy and real-time performance. Core stack: C++, Python, ROS/ROS2.
Senior Software Engineer, Controls
Senior Software Engineer on Gatik's Controls team designing, implementing, and validating real-time control and optimization software for its Level 4 autonomous middle-mile trucks — including SiL/HiL prototyping, tuning, calibration, and in-vehicle testing. Core stack: C/C++, MATLAB/Simulink, MPC/Kalman filtering, ROS2, CAN, Linux. Onsite in Santa Clara, CA.
Senior Software Engineer, C++
Senior/Staff C++ engineer building the production platform behind Gatik's Level 4 autonomous trucking stack: turning research prototypes into reliable, real-time perception/autonomy software, optimizing latency, compute and memory on embedded systems, and mentoring researchers. Core tech: C++, CMake/Conan/Bazel, with ROS2 and PyTorch as pluses. Onsite in Santa Clara, CA.

Senior Engineering Manager, Trust & Safety, Surveillance & Compliance
Lead the engineering team behind Polymarket's Trust & Safety systems for its CFTC-regulated prediction market exchange: KYC/onboarding, fraud and AML controls, market surveillance, and case-management tooling. Requires 8+ years in software engineering, 2+ years managing engineers, and experience with data-intensive detection systems in regulated environments.
Engineering Manager
Engineering Manager leading product engineering teams at Swoop, which builds SwoopOS — a distributed operating system turning real-world equipment into a platform for robotics, autonomous systems, and agentic AI (with the Valhalla SDK and Surf browser). The role focuses on mentoring, 1:1s, reviews, and staying hands-on with C, Rust, Python, embedded/kernel work, and Kubernetes in a hybrid Minneapo
Vehicle Software Engineer - Summer Internship 2027
Summer 2027 internship at Inversion (Playa Vista, CA): own a well-scoped software project end-to-end supporting spacecraft flight software, ground systems, or test infrastructure — programming in C/C++/Rust/Python, integrating with hardware, and building SIL/HIL automated tests for reentry vehicles. Fully on-site; pays $38–41/hour.
AI & Internal Tools Software Engineer - Summer Internship 2027
Summer 2027 internship on Inversion's Internal Software Tools team in Playa Vista, CA: you'll own a full-stack project end to end, building internal apps, automation, and AI/LLM-enabled tools for the aerospace company's engineering and business teams. On-site role paying $38-$41/hour; stack includes React, TypeScript, Python, and Docker.
Software Engineer, Core Data
Software engineer on Aquatic Capital Management's Core Data team, building and maintaining market data feed handlers (ITCH, GTP, PITCH) and quant-ready data archives for a quantitative trading firm. Day-to-day is hands-on C++/Python work supporting research and trading as the firm expands into new global markets.
Engineering Manager
Leads an engineering team at Altana building an AI-powered global trade platform — owning hiring, growth, planning, and delivery while staying hands-on with back-end/cloud code. Hybrid role based in Brooklyn, NY, treating LLMs, agents, evals, and retrieval as core building blocks.
Business Systems Engineer
Serves as the technical owner of Orenda's internal business systems — designing a DER project source-of-truth database, owning Salesforce and construction management platforms, and leading an ERP implementation with a third-party firm. Day-to-day involves data modeling, integrations, and automation using Python, low-code tools, and AI.

Founding Engineering Manager
Founding engineering leader at Giga, a voice-AI startup building real-time AI agents for enterprise customer experience (DoorDash is a customer). The role hires and leads the Toronto site, drives platform architecture and technical strategy, and stays hands-on coding in Python (Django/FastAPI), TypeScript, AWS, Kubernetes, and Postgres.
Lead Software Engineer / リードソフトウェアエンジニア
Lead Software Engineer at Sumasate, a Tokyo AI SaaS startup whose product computes optimal rents for rental properties from billions of real-estate records. The role strengthens in-house backend development of the AI rent-appraisal system (Ruby on Rails, Python/Django, AWS/GCP, MySQL, BigQuery), collaborates with external partners, and shapes product and dev-process direction. Hybrid: onsite Monda
Software Engineer, Operating Systems
Design, develop, and own mission-critical operating-system software for Apex's satellite buses: building and maintaining embedded Linux platforms and bootloaders (Yocto, Buildroot, U-Boot, WolfBoot), firmware update mechanisms, and security enhancements, working alongside mission ops, GNC, and hardware teams in Los Angeles.
Senior Software Engineer, Operating Systems
Senior Operating Systems Engineer on Apex's Flight Software team builds the low-level software that drives spacecraft avionics: embedded Linux platforms (Yocto, Buildroot, U-Boot, WolfBoot), bootloader and firmware update mechanisms, and security enhancements. Requires 8+ years of OS-level coding (Python, C++, or Rust) and U.S. Person status for ITAR.
