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2,918 Founding Engineer jobs

Founding engineer roles building the first product at early-stage startups.

2.9K jobs
Muon Space
32 views 2 weeks ago

Senior Flight Dynamics Software Engineer, Mission Planning Platform

Open 144d North AmericaFull-timeSenior Salary + equity 5 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
San Jose, CA

Senior flight dynamics engineer on Muon Space's Mission Planning Platform team, owning workstreams end-to-end (architecture through on-orbit operations) for the in-house MuFDS: orbit determination, maneuver planning, stationkeeping, and collision avoidance for LEO constellations, built mainly in C++ and Python.

Ansys Automation Cloud C++ Itar +4 skills
213K – 237K $
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Muon Space
25 views 2 weeks ago

Staff Software Engineer, Simulation Infrastructure

Open 144d North AmericaFull-timeStaff Salary + equity 4 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
San Jose, CA

Staff Software Engineer on Muon's Simulation team, shaping simulation tool architecture, integrating models into products, and leading design/development. Uses high-level scripting and compiled languages, with experience in simulation, cloud (Kubernetes), and DevOps.

Business Development CI/CD Cloud DevOps Docker +5 skills
210K – 234K $
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Muon Space
41 views 2 weeks ago

Senior Instrument Systems Engineer

Open 121d North AmericaFull-timeSenior 5 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
Mountain View, CA

Senior Instrument Systems Engineer at Muon Space, leading the design and development of infrared remote sensing instruments for national security satellites, responsible for architecture, budgeting, testing, and on-call support for on-orbit anomalies.

AI Assembly Itar Julia Python +2 skills
166K – 223K usd
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Muon Space
51 views 2 weeks ago

Staff Mission Lead Systems Engineer - General

Open 104d North AmericaFull-timeStaff 4 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
Northern VA

Lead the end-to-end design, development, and operation of high-reliability satellite missions, from early concept through on-orbit execution, for government and commercial customers.

Agile AI Business Development Data Pipelines Itar +6 skills
205K – 230K $
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Muon Space
102 views 2 weeks ago

Software Engineer, Entry-Level

Open 91d North AmericaFull-timeJunior 4 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
San Jose, CA

Build embedded software for satellites, physics simulations, APIs, and cloud systems to support satellite constellation operations and data pipelines.

API Cloud Computer Vision C++ Data Pipelines +10 skills
142K – 169K $
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Muon Space
33 views 2 weeks ago

Software Engineer, Simulation Infrastructure

Open 91d North AmericaFull-time 4 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
San Jose, CA

Build and maintain in-house simulation services in Python and C++ for satellite operations, integrating models used by engineering and business teams.

Business Development CI/CD Cloud C++ DevOps +6 skills
156K – 186K $
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Muon Space
24 views 2 weeks ago

Senior Software Engineering Manager, Flight Software

Open 91d North AmericaFull-timeSenior 4 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
San Jose, CA

Leads the team building the flight software platform that operates on-orbit satellites at Muon Space — communications, telemetry, power management, sensors, payloads, and orchestration. A people-management and technical-direction role; core stack is C++, Python, or Rust on embedded RTOS/Linux systems. Hybrid: three days per week in the San Jose, CA office.

C++ Embedded Systems Itar Linux Observability +3 skills
240K – 265K $
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Muon Space
32 views 2 weeks ago

Staff Software Engineer, Onboard Compute Architecture

Open 90d North AmericaFull-timeStaff 5 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
San Jose, CA

Define and evolve the end-to-end architecture of an onboard High Performance Compute platform for spacecraft, integrating FPGA, GPU, CPU, and networking to support modular, reusable missions.

API Api Design Ethernet Firmware FPGA +5 skills
210K – 234K $
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Muon Space
22 views 2 weeks ago

Senior Software Engineer, Government Programs

Open 85d North AmericaContractSenior 4 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
Northern VA

Lead the design and operation of secure data pipelines that process infrared satellite imagery and deliver mission-critical analytics to U.S. defense and intelligence agencies, including NRO systems.

Analytics Business Development Cloud Data Pipelines DevSecOps +4 skills
175K – 198K $
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Muon Space
32 views 2 weeks ago

Software Engineer, Customer Solutions

Open 70d North AmericaFull-time 4 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
San Jose, CA

Help external payload partners integrate their software with Muon Space's satellite platform using C++ and Python—authoring SDKs, documentation, and simulations to ensure seamless pre-launch testing and on-orbit operation.

C++ Embedded Software Ethernet Itar Linux +2 skills
156K – 186K $
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Muon Space
32 views 2 weeks ago

GNC Software Engineering Intern (Summer 2027)

Open 36d North AmericaInternshipIntern 3 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
Mountain View, CA

On-site summer 2027 internship with Muon Space's GNC team in Mountain View, CA: own a spacecraft guidance/navigation/control software project end to end — system-level GNC analysis, new flight software features, operations/calibration tools, and automated regression tests — primarily in C++ and/or Python.

C++ Itar Julia Python
40 – 50 $ / hr
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Muon Space
51 views 2 weeks ago

Flight Software Engineering Intern (Summer 2027)

Open 35d North AmericaInternshipIntern 3 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
San Jose, CA

Summer 2027 on-site internship in Mountain View/San Jose, CA: own a scoped flight-software project end to end — adding spacecraft capabilities, integrating hardware, building simulations, or improving automated testing — working in C, C++, or Python alongside Muon Space's flight software engineers.

Cloud C++ Itar Microcontrollers Python +1 skills
40 – 50 $ / hr
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Muon Space
43 views 2 weeks ago

Ground Software Engineering Intern (Summer 2027)

Open 20d North AmericaInternshipIntern 3 questions H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.
United States
San Jose, CA

Summer 2027 Ground Software Engineering Intern at Muon Space, helping build software for LEO satellite constellations — ground software, test tools, simulation, and sensor-data processing. Interns own a full project with mentorship, on-site in Mountain View or San Jose, CA, using languages like Python, C++, or Rust.

Cloud C++ IaaS Itar Machine Learning +3 skills
40 – 50 $ / hr
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株式会社JIJ
6 views 2 weeks ago

◆数理最適化・ソフトウェアエンジニア（公共・安全保障領域／リード）

APAC
Japan
- 基本はリモートワークを含むハイブリッド勤務です。 東京都港区芝浦三丁⽬3番6号 東京科学⼤学キャンパス・イノベーションセンター INDEST 403号室, ただし案件の情報保全要件により、顧客・パートナー企業が用意するプロジェクトルーム（主に東京都内および首都圏）での作業が必要となる場合があります。 **就業場所の変更範囲** 入社直後：国内の自宅、事業所、またはプロジェクト上必要な作業場所 変更範囲：会社の定める国内外の事業所およびプロジェクト先（出向の場合は出向先で定める事業所を含む）

Lead engineer at JIJ driving joint projects with Japanese government agencies and large enterprises in the public/security domain: structuring decision problems, designing optimization models and algorithms, and building Python-based optimization engines, APIs and validation apps. Hybrid remote with Tokyo office and possible client-site work.

7M – 10M JPY
agnes ai
32 views 2 weeks ago

Software Engineer

APACFull-time
Singapore

Forward Deployed Engineer at Agnes AI (Singapore, on-site) who works directly with enterprise customers to scope, prototype, and deploy AI-powered solutions using LLM APIs, AI agents, and RAG. Day to day includes building back-end services and APIs, integrating AI into enterprise systems, and owning deployments through testing, monitoring, and optimization.

Agentic AI AI Ai Enablement API Automation +13 skills
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CerberusAI
45 views 2 weeks ago

Founding Software Engineer

North America
United States

Founding software engineer at CerberusAI, an early-stage agentic AI security startup, building sensors, large-scale event-processing pipelines, AI/ML systems for detecting compromised AI agents, and UI for threat monitoring. Core stack: Python, TypeScript, Postgres, Kubernetes, Terraform, GCP, and Kafka.

Agentic AI AI Analytics Anomaly Detection Cloud +15 skills
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FutureTech Recruitment
90 views 2 weeks ago

Senior Software Engineer

RemoteNorth AmericaSenior
United States

Senior/Staff Software Engineer at a Series B fintech/AI startup building an AI-native platform that automates financial workflows ($70B+ processed). Day to day: build multi-step AI agents, scale AWS job-processing infrastructure, design relational schemas, and ship full-stack TypeScript features (React, Node, GraphQL, PostgreSQL) while mentoring juniors. Fully remote across US/Canada.

Agentic AI AI API AWS Distributed Systems +15 skills
200K – 350K $
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Arches Legal
107 views 2 weeks ago

Senior Software Engineer

RemoteNorth AmericaSenior
United States

Senior software engineer at a legal-tech startup building software that helps law firms generate case documents from complex sources like police reports and medical records. Day to day: building Express.js/Node.js APIs and data pipelines, React frontends, and LLM prompting systems, plus code review, testing, and mentoring. Remote within the U.S.

API Data Pipelines Express.js JavaScript LLM +6 skills
170K – 220K $
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Hong Kong Univisual Intelligent Technology Limited
45 views 2 weeks ago

AI Software Developer/Assistant/Intern

On-siteAPACInternshipIntern
Hong Kong SAR China
Kowloon Tong, Kowloon City District

Develops AI software at HKUIT, a Hong Kong AI startup focused on human-safety applications: designs and builds programs to user specs, helps train and structure AI models, tests, writes technical documents, and supports user acceptance tests, occasionally working at customer premises. Core technologies are Python, OpenCV, and TensorRT, with C++ a plus.

AI C++ OpenCV Python TensorRT
17K – 23K HKD / mo
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Care GP Backed by Y Combinator
11 views 2 weeks ago

Lead Software Engineer

APACLead
Australia
Sydney

Lead Software Engineer at Care GP, a YC-backed AI healthcare startup in Sydney. You join the founding team to build and scale an AI-powered primary care platform, owning architecture, systems, and product direction while shipping fast to real clinics. Strong full-stack or backend skills required.