2,918 Founding Engineer jobs
Founding engineer roles building the first product at early-stage startups.
Senior Software Engineer, Web & SDK
Builds web viewers/players for egocentric robotics capture data (multi-stream video playback, timeline scrubbing, large-media performance) and designs SDKs and clean APIs on top of Mecka's hardware and data platform. Core stack is modern JavaScript/TypeScript with a major frontend framework, plus WebGL/WebCodecs for media.
Senior/Staff Software Engineer, Tech Lead
Hands-on senior/staff software engineer (tech lead track) at Merge Labs, a brain-computer interface research startup in the SF Bay Area. You'll personally design, build, and operate software end-to-end — experiment apps, instrument SDK integrations, and high-volume scientific data pipelines — while mentoring peers; stack mentions include Python, C++, Rust, and Matlab.
Software Engineer - Platform [IC3]
Builds and maintains Sourcegraph’s cloud infrastructure and platform services, enabling scalable code intelligence for developers and enterprises using Go, Kubernetes, and cloud providers.
Software Engineer, Applications & Systems
A generalist software engineer at a brain-computer interface research lab builds experimental applications and workflows that turn instrument APIs into tools scientists can configure, run, and trust. Day to day you'll work across apps, backend services, data integration, testing and deployment alongside researchers.
Senior/Staff Software Engineer, AI Insights
Axion is hiring a Staff Software Engineer in New York to lead backend teams building scalable AI-powered systems — designing APIs, cloud infrastructure, and LLM/agentic workflows that turn complex, unstructured manufacturing data into reliable structured outputs for its quality-intelligence platform.
Senior Software Engineer | Remote | AI SaaS Software Role
Who we are: Process Street is an AI software and compliance operations platform startup from San Francisco. We help our customers build, document, automate, and track recurring workflows. Our platform automates the…
Software Development Engineer Intern
Six-month software engineering internship at Pactorize, an early-stage AI startup in Muscat, where the intern builds real AI/LLM-powered products — backend services, APIs, databases, AI agents, and cloud applications — alongside experienced engineers, with a stipend and a path to full-time conversion.
Senior IT Engineer
Thrill Labs, a crypto gaming platform, is hiring a Senior IT Engineer based in Tallinn to own corporate IT for 100+ globally distributed employees: onboarding/offboarding, identity and access (Google Workspace, Entra ID, SSO, MFA, YubiKey), MDM for macOS/Windows, endpoint security, SaaS administration, and IT automation, working alongside DevOps.
Senior Software Engineer
Senior Software Engineer to design and build testing, evaluation, and automation infrastructure for Tenzai's AI-powered offensive security platform, including CI/CD integrations and distributed test orchestration using Python, distributed systems, and cloud-native technologies.
Software Engineer - Console
Software Engineer on XBOW's Console team building full-stack product features end-to-end: React/TypeScript frontends, TypeScript/Kotlin/Go backend services, and AWS deployments for an AI-powered offensive security platform. Fully remote within Europe, full-time, on an early-stage startup team.
Software Engineer - AI Systems
XBOW is hiring a Software Engineer to build LLM-powered systems for its autonomous offensive security platform: designing prompt flows and agentic orchestration, building production-grade TypeScript services, and running experiments/evaluations at scale. Role is fully remote (Austria) alongside AI, engineering, and security researchers.
Software Engineer, Infrastructure
Infrastructure engineer at a cross-border payments company who designs, builds, and operates the cloud platform on GCP and Kubernetes (GKE), running PostgreSQL/AlloyDB and Redis, and keeping it secure, compliant (PCI-DSS), observable, and cost-efficient while enabling frequent zero-downtime deploys of a Rails monolith and Sidekiq workers.
Sr. Program Systems Engineer
Sr. Program Systems Engineer at Astrolab (lunar rovers, power and comms hardware) will integrate the Lunar Terrain Vehicle program across mission phases — negotiating requirements with NASA, running trade studies and scenario analyses, and leading verification & validation. Requires a STEM degree, 5+ years with spacecraft subsystems, and V&V/trade-study experience.
Software Engineer
Full-stack software engineer at Ever, an AI-native electric-vehicle auto-retail startup, building and shipping core features for its online/offline marketplace and operations platform. Work involves Go or TypeScript, Python, and React-family frameworks (Next.js, Vite), onsite/hybrid from San Francisco.
Software Engineer (PHP)
PHP software engineer developing Pargo's core e-commerce parcel delivery platform and client APIs in a hybrid Cape Town team. Day to day covers spec, development, testing, launch and support, using Laravel, PostgreSQL/MySQL, REST APIs, Docker and Kubernetes.
IT Engineer
Oratomic, a company building a fault-tolerant quantum computer, is hiring an IT Engineer to own IT end to end: managing networks, computers, accounts, devices, and access/security across its Pasadena offices and labs, and troubleshooting hardware and software for scientists and engineers as the company grows.
Systems Engineer
Systems Engineer at Oratomic designing, building, and operating fault-tolerant neutral atom quantum computers, focusing on integrating hardware (lasers, optics, vacuum, electronics) with software, defining subsystem interfaces and specifications, and hands-on lab work. Onsite in Pasadena, CA.