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2,916 Founding Engineer jobs

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

2.9K jobs
Super.com
23 views 3 weeks ago

Senior Software Engineer, Security

Open 18d RemoteNorth AmericaSenior
Canada

Senior Software Engineer on Super.com's Security team, shaping AppSec and DevSecOps practices: threat modeling, offensive security testing, building in-house AI-powered security tooling, and mentoring engineers. Stack includes Python/FastAPI, TypeScript/React, AWS, Kubernetes, Postgres, Kafka, and Elasticsearch.

Agentic AI AI Application Security AWS Burp Suite +25 skills
128K – 173K CAD
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Stamm Biotech
11 views 3 weeks ago

Software Engineer

Open 18d On-siteLATAM
Argentina
Buenos Aires

Software engineer at a biotech company working across backend, frontend, and firmware projects — building machine control software, industrial 3D design tools, and web apps that orchestrate biotech processes. Uses TypeScript/JavaScript, Python, and C/C++, with Git-based collaborative workflows.

API C++ Design Patterns Embedded Systems Firmware +8 skills
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ColdQuanta
21 views 3 weeks ago

Quantum Software Engineer - Nuclear

Open 18d On-siteNorth America 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.
United States
Chicago

Designs, writes, and tests quantum algorithms (QPE, VQE, Hamiltonian simulation) applied to nuclear physics problems, collaborating with experimental physicists and external groups. Core stack is Python with quantum frameworks like Qiskit/Cirq, plus R&D, proposal writing, and publishing research.

Agentic AI AI AWS CI/CD Cloud +15 skills
110K – 182K $
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ColdQuanta
27 views 3 weeks ago

Quantum Software Engineer (Compiler)

Open 18d On-siteNorth AmericaSenior 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.
United States
Chicago

Designs, builds, and maintains quantum compilation software for Infleqtion's Superstaq cloud platform, combining hands-on coding, code review, and system design with R&D across the full quantum stack. Hybrid role in Chicago (3 days/week in office), open to entry- and senior-level candidates, core stack is Python with C/C++/Julia and quantum frameworks like Cirq/Qiskit.

AWS CI/CD Cloud C++ CSS +10 skills
145K – 170K $
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Skapion
29 views 3 weeks ago

Senior Interceptor System Engineer

Open 64d On-siteMENASenior
Israel
Ramat Gan, Tel Aviv District

A senior systems engineer who takes end-to-end ownership of an interceptor missile at a young defense-tech startup — defining system architecture (seeker, rocket motor, navigation & control), writing engineering specs (ICD, SRR), leading integration and lab/field trials, and supporting the system through operational deployment.
Skapion
21 views 3 weeks ago

BMC System Engineer

Open 64d On-siteMENA
Israel
Ramat Gan, Tel Aviv District

At Skapion, a stealth defense-tech startup, you will design the battle management command-and-control system: authoring requirements and interfaces, integrating sensors, interceptors, and C2 nodes, and validating through lab tests and live field trials.

MATLAB Python Sketch
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Sellux Ventures
10 views 3 weeks ago

Software Engineer (Trading Application)

Open 18d On-siteAPACContract
Thailand
Bangkok

Build and maintain a luxury-asset trading platform (web + iOS/Android) at an early-stage Bangkok company: order matching, wallets, deposits/withdrawals, and real-time market data over WebSocket/API, plus payment, banking, and e-KYC integrations. Stack choice of Flutter/React Native/Swift/Kotlin, Node.js/Go/Java/Python, or React/Next.js/Vue, with PostgreSQL/Redis and cloud.

Android API Authentication AWS Azure +26 skills
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Stem IT
46 views 3 weeks ago

Software Engineer

Open 18d HybridNorth America
United States
New York

Software Engineer at a Series-D fintech startup (financial wellness for underserved customers), based in Midtown Manhattan with 3 days onsite per week. Day to day: building scalable Java/Spring microservices and core applications, using relational/non-relational DBs, containerization/deployment tools, and AI tools like Claude/Cursor/Gemini, including agentic AI to automate the dev pipeline.

Agentic AI AI Angular AWS Containerization +16 skills
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Remolity
13 views 3 weeks ago

Software Engineer

Open 18d RemoteNorth AmericaFull-time
United States
United

Remolity is hiring a fully remote back-end Software Engineer to build and scale its remote-job search platform, working on APIs, job discovery, search/filtering, and user-preference features. Requires proficiency in at least one modern language (e.g., Python, JavaScript/TypeScript, Java) plus API and relational/NoSQL database experience; cloud and CI/CD skills are a plus.

API AWS Azure CI/CD Cloud +16 skills
65K – 75K $
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Scout Motors
5 views 3 weeks ago

System Engineer, Infotainment Systems

Open 18d On-siteNorth AmericaFull-time
United States
Charlotte

System engineer and feature/function owner for vehicle infotainment and displays at EV maker Scout Motors, owning features like navigation, off-road mapping, CarPlay, and Android Auto end-to-end from requirements through validation and launch. The work spans systems engineering, embedded software/hardware integration, and MBSE tooling (CAN, Automotive Ethernet, CANoe, Codebeamer) in a cross-functi

Android Confluence Embedded Systems Ethernet GitHub +3 skills
140K – 170K $
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Kikoff Backed by Lightspeed
16 views 3 weeks ago

Senior Software Engineer - Product Platform

Open 18d On-siteNorth AmericaSenior
United States
San Francisco

Senior Software Engineer on Kikoff's Product Platform team builds and owns foundational services—identity/KYC infrastructure, credit furnishing systems, and shared platform capabilities—that every product team depends on. Ruby on Rails is a plus; strong production-systems fundamentals required.

AI Fintech Rails Ruby
244K – 292K $
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Divergent
10 views 3 weeks ago

Staff Software Engineer, Robotics

Open 18d On-siteNorth AmericaStaff
United States
Torrance

Staff robotics software engineer at Divergent (Torrance, CA, hybrid) who designs, builds, and optimizes the software controlling industrial robots, additive-manufacturing equipment, and automated production lines. Day-to-day is hands-on C++/C#/Python development, machine-control architecture, hardware/sensor integration, and cross-team debugging in a factory environment.

Automation C++ C# Python Root Cause Analysis
141K – 225K $
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Loft Orbital Solutions
13 views 3 weeks ago

Product Systems Engineer

Open 18d On-siteNorth America 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
Golden

Product Systems Engineer at Loft Orbital (space infrastructure / missions-as-a-service): owns integrated system design for the company's 'Hub' product, defining requirements, interfaces (ICDs), CONOPS, and architecture across ground software, flight software, and hardware, while coordinating cross-functional teams through the product lifecycle.

AI Cloud Embedded Systems IoT Networking
125K – 175K $
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Job Evolution
219 views 3 weeks ago

Junior/Middle .NET Developer (C#)

Open 93d RemoteWorldwideMiddle
United States

Builds backend services and REST APIs in C#/.NET, works with MongoDB, ClickHouse, and RabbitMQ, and contributes to an AI product analyzing workflows.

AI API AWS Azure BambooHR +11 skills
1K – 2K $ / mo
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Embedding VC
18 views 3 weeks ago

Member of Technical Staff, Applied Research

Open 18d HybridNorth America
United States
New York

Applied research engineer at Chakra Labs building post-training workflows, agent environments, reward/eval systems, and training infrastructure for frontier AI labs. Day to day: designing tasks and reward signals, curating high-fidelity training trajectories, and running distributed PyTorch training on GPU clusters.

AI Airtable AWS Data Quality FastAPI +8 skills
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bei enabl
18 views 3 weeks ago

Senior C++ Software Engineer – Real-Time Systems (m/w/d)

Open 18d On-siteEuropeSenior
Germany
Karlsruhe

Senior C++ engineer at enabl (Karlsruhe) building the real-time connectivity stack that lets forklifts be safely remote-controlled across Europe. Day to day: Modern C++/Python on Linux for low-latency video and control data links, WLAN analysis at customer sites, and automated network test infrastructure/CI.

Cloud C++ Embedded Linux Linux Python +2 skills
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Scope AI
52 views 3 weeks ago

Senior Software Engineer

Open 18d On-siteUKSenior
United Kingdom
London

Senior Software Engineer at Scope AI, an early-stage startup building an AI-native data-collection platform for field inspectors. You'll work end to end—talking to users, designing and shipping AI systems that turn voice notes, photos and videos into finished reports—on-site five days a week in London; Expo/React Native skills a plus.

Agentic AI AI Figma React React Native
120K – 150K £
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Cherry Technologies, Inc.
36 views 3 weeks ago

Mid-Level Software Engineer

Open 18d RemoteNorth AmericaFull-timeMiddle 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

Mid-level fullstack engineer at Cherry, a fintech whose BNPL product lets patients finance care at medical, dental, and veterinary practices. You'll build end-to-end features, make architecture decisions across frontend/backend/infra, and implement observability, working remotely in the US with early-morning collaboration alongside European teammates.

Airflow API Automation Cloud Cloud Native +10 skills
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Inversion
14 views 3 weeks ago

Engineering Manager, Arc Vehicle Software

Open 141d North America 3 questions
United States
Playa Vista, California

Leads Inversion's Arc software team, managing flight software, ground software, and autonomy development for a hypersonic reentry spacecraft — owning the full release cycle, SIL/HIL testing, and GNC integration. Core stack: embedded C/C++/Rust on Linux in a high-reliability, clearance-required environment.

Assembly Automation Ccpa CI/CD C++ +7 skills
145K – 210K $
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Karias Health
12 views 3 weeks ago

Senior Software Engineer (Python & Ruby on Rails)

Open 18d RemoteNorth AmericaFull-timeSenior
United States
United

Foundational senior engineer at a health benefits platform who architects a multi-tenant Rails/Python SaaS on AWS (RDS, S3, Redshift, Glue, OpenSearch), builds RAG pipelines on HIPAA-eligible LLMs, and mentors offshore engineers — roughly 80% hands-on building, 20% technical leadership, reporting to the Lead Engineer.

AI AWS CI/CD Fintech Hipaa +11 skills
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