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2,917 Founding Engineer jobs

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

2.9K jobs
ART2HIRE
15 views last week

Chief Technology Officer (CTO)

HybridEuropeFull-timeC-level
Latvia
Riga

Hands-on, board-level CTO to build a greenfield card-acquiring and payments platform (Visa/Mastercard scheme participation, SEPA/SWIFT processing, payment gateway) at a Riga-based FinTech preparing for an EMI license. Owns tech strategy, architecture, regulatory compliance (PCI DSS, DORA), and the engineering team; hybrid role based in Riga.

API AWS Azure Cloud DevOps +5 skills
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Relari Backed by Y Combinator
49 views 2 weeks ago

Robotics Software Engineer

On-siteNorth AmericaFull-time
United States

Builds the software that lets robots learn dexterous manipulation from human data at an early-stage robotics/AI startup: robot control, sensor integration, teleoperation, perception, simulation, and deploying learned policies on physical arms and dexterous hands. Core stack is Python/C++ with ML, full-time on-site in San Francisco.

AI Computer Vision C++ Machine Learning Python +3 skills
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Fluidstack
31 views 2 weeks ago

Software Engineer, Networking

Open 122d UKFull-time Salary + equity 8 questions
United Kingdom
London

Builds and maintains automated network monitoring, debugging, and repair systems for a rapidly expanding AI datacenter fleet, using Go, Python, and AI-driven tooling.

Agentic AI AI API Automation BGP +5 skills
173K – 279K $
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Tavily
301 views 2 weeks ago

Senior Software Engineer (Agentic Search) – Web Rendering (Chromium)

Open 81d RemoteEurope, MENA, UKSenior No extra questions
Europe

Builds browser-based rendering infrastructure for a novel agentic search engine, executing complex JavaScript at scale to extract structured content for AI systems.

Agentic AI AI Analytics API C++ +8 skills
150K – 200K $
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Taiv Backed by Y Combinator
99 views 2 weeks ago

Senior Software Developer

RemoteNorth AmericaFull-timeSenior
United States
CA

Senior software developer at Taiv, a YC-backed Winnipeg startup whose computer-vision TV boxes turn business TV in bars and restaurants into a context-aware ad platform. The role focuses on Android, web (React/TypeScript), and backend work, with exposure to C/C++, OpenCV, and custom hardware, plus mentoring junior devs.

AI Android Cloud Computer Vision C++ +8 skills
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Picus Security Inc.
121 views 2 weeks ago

Software Engineer

RemoteMENA
Türkiye
Turkey

Software Engineer at Picus Security building the Windows agent of its cybersecurity exposure-validation platform in C#/.NET at the OS level, plus Go backend endpoints, while contributing across the product (Linux/macOS agents, AWS attack simulation) on a fully remote team that develops with AI agents in the loop.

Agentic AI Agile AI AWS Cloud +14 skills
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Keycard Labs
114 views 2 weeks ago

Software Engineer, SDK

Open 146d RemoteNorth America Salary + equity 5 questions
United States

Build and own the Keycard Agent SDK: multi-language libraries (Go, Python, TypeScript, Rust) that give AI agents verified identity, policy enforcement, audit logging, and telemetry in production. Day to day you ship SDKs, keep compatibility with agent frameworks, and contribute to open protocols like MCP and A2A.

Agentic AI AI API Api Design Auth0 +16 skills
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Starfish Space
43 views 2 weeks ago

Software Engineer

Open 48d HybridNorth AmericaFull-time 6 questions
United States
Tukwila, Washington

Software engineer at Starfish Space building space-environment simulation software and infrastructure to refine the autonomous rendezvous, proximity-operations, and docking software of the Otter satellite servicing vehicle. Day-to-day work spans cloud infrastructure, automated simulation analysis, and integrations with satellite compute hardware, using Python and C++.

Cloud C++ Itar Python
100K – 180K $
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Instawork Backed by Y CombinatorBacked by Greylock
40 views 2 weeks ago

Senior Software Engineer

Open 146d North AmericaSenior Salary + equity 5 questions
United States
San Francisco, California

Senior full-stack engineer on Instawork's labor marketplace, shipping features end-to-end using Python/Django backends and React/React Native frontends, with an AI-first approach to development.

Agile AI Angular API Django +7 skills
170K – 200K $
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Starfish Space
26 views 2 weeks ago

Satellite Systems Engineer

Open 124d HybridNorth AmericaFull-time 5 questions
United States
Tukwila, Washington

Systems engineer supporting Starfish Space's Otter satellite servicing vehicle — doing performance analysis, systems engineering, and satellite integration/testing for life-extension and disposal missions. Core skills: space systems knowledge, systems engineering, and Python programming, based onsite in Tukwila, WA.

Itar Python
100K – 180K $
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Swarm Aero
68 views 2 weeks ago

Staff Software Engineer, Real-Time Systems

Open 63d North AmericaFull-timeStaff 3 questions
United States
San Francisco

Early engineer architecting the real-time backend for Swarm Aero's Legion Command & Control platform, letting one operator plan and direct large swarms of autonomous aircraft. Work spans distributed real-time systems, high-throughput telemetry pipelines, and infrastructure resilient to intermittent comms; requires 6+ years backend/distributed systems experience and is ITAR-restricted (U.S. persons

API CI/CD DevSecOps Distributed Systems Event Driven Architecture +1 skills
200K – 310K $
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Swarm Aero
55 views 2 weeks ago

Software Engineer, Real-Time Systems (Early Career)

Open 75d North AmericaFull-time 3 questions
United States
San Francisco

Fullstack engineer building the frontend for a Command & Control platform that directs swarms of autonomous aircraft in real time, using React, WebGL/OpenGL, and distributed real-time infrastructure.

CI/CD C++ DevSecOps Distributed Systems Game Development +4 skills
170K – 220K $
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AeroVect Technologies Inc.
41 views 2 weeks ago

Senior Staff Software Engineer, Perception

EuropeStaff
Dublin

AeroVect, a Series A autonomy startup for airport ground handling, is hiring a Senior Staff Software Engineer (Perception) in Dublin to architect multi-modal 2D/3D object-detection models (camera, LiDAR, Radar), build data collection and evaluation pipelines, deploy models to production, and mentor junior engineers. Core stack: Python and deep-learning perception tooling.

Deep Learning LiDAR Python
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Xona Space Systems
30 views 2 weeks ago

Sr. Software Engineer - Build & Release

Open 141d On-siteNorth 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
Burlingame, California

Xona is the navigational intelligence company bringing real-time, centimeter-level certainty to any device, anywhere on Earth. With Pulsar – the world’s most advanced PNT satellite infrastructure in Low Earth Orbit –…

Automation Bash Bazel CI/CD CMake +13 skills
165K – 185K $
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Albedo Backed by Y Combinator
23 views 2 weeks ago

Sr. Systems Engineer

Open 21d North AmericaFull-timeSenior 2 questions
United States
Broomfield, CO

Senior Systems Engineer at Albedo (onsite in Broomfield, CO) working on Very Low Earth Orbit (VLEO) spacecraft: owning system-level architecture, requirements, interface management, and performance budgets, and supporting integration, verification, and testing across GNC, avionics, payload, thermal, power, and flight software teams. Key tools include MATLAB, Simulink, and Python.

AI MATLAB Python Simulink
161K – 185K $
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Nourish Backed by Y CombinatorBacked by Index Ventures
62 views 2 weeks ago

Staff Software Engineer

Open 141d North AmericaFull-timeStaff 6 questions
United States
New York, NY

Nourish is seeking a Staff Full Stack Engineer to lead the development of consumer-facing features for their digital health platform. The role involves working with React, TypeScript, Node.js, and React Native to build scalable solutions that connect patients with dietitians and healthcare services.

Agentic AI AI Amplitude Analytics Node.js +4 skills
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QuEra Computing Backed by SoftBank Vision Fund
29 views 2 weeks ago

Laser Systems Engineer

Open 144d North America Salary + equity 7 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.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
Boston, MA

Designs, builds, integrates, and sustains the laser systems that power QuEra's neutral-atom quantum processors, spanning platform R&D, deployment/commissioning, and operational reliability. Core work involves precision optics, laser stabilization and locking, fiber coupling, and scaling laser fleets with automation.

AI Automation Fiber LLM Root Cause Analysis
128K – 208K $
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QuEra Computing Backed by SoftBank Vision Fund
43 views 2 weeks ago

Scientific Software Engineer - Compiler

Open 144d APAC 7 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.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.
Japan
Tsukuba

Scientific Software Engineer at QuEra Computing in Tsukuba, Japan, building the compiler pipeline (open-source Kirin toolchain) for neutral-atom quantum computers. Day to day: developing DSLs and compiler infrastructure in Python and C++, co-designing hardware features with physicists for quantum error correction, and supporting customers in Japanese and English.

CI/CD C++ Python Version Control
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QuEra Computing Backed by SoftBank Vision Fund
22 views 2 weeks ago

Sr. QPU Software Engineer

Open 144d North AmericaSenior Salary + equity 7 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.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
Boston, MA

Full-stack engineer at quantum computing startup QuEra, building QPU (quantum processing unit) management systems: backend services in Kotlin/Spring Boot plus frontend UI work with TypeScript and React or Vue. Onsite in Boston; $160k-$225k base plus equity.

Agile AWS Cloud Cloud Native Docker +19 skills
160K – 225K $
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QuEra Computing Backed by SoftBank Vision Fund
21 views 2 weeks ago

Sr. QPU Software Engineer

Open 68d North AmericaSenior 7 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.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
Boston, MA

Develops and maintains quantum computer management systems, including controls infrastructure and calibration services, collaborating with physicists and hardware engineers to operationalize quantum hardware. Core tech: C++, Python, cloud-native tools, and RESTful services.

Agile AI Cloud Cloud Native C++ +12 skills
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