2,918 Founding Engineer jobs
Founding engineer roles building the first product at early-stage startups.
Engineering Manager
One of Runlayer's first engineering managers, leading a 6-10 person pod building its AI-agent platform (security, governance, observability for MCPs, skills, and agents). Hands-on EM role: 1:1s, hiring, delivery, PR review, and production debugging; needs 7+ years engineering, 2+ managing, Python/TypeScript, and AWS/Kubernetes/Terraform.
Software Engineer – Cloud Services – Rust
Builds distributed cloud services in Rust for Tensordyne's generative AI inference platform — developing the inference backend software stack, exposing APIs for generative AI, maintaining in-house Rust code, and orchestrating agent teams. Based in Munich; modern Rust, async patterns, HTTP, and Kubernetes experience preferred.
Senior Software Engineer, Behavior Planning
Design and implement the behavior planner — the decision-making layer — for autonomous vehicles operating in airport ground environments, bridging mission goals and motion execution. Core stack is modern C++ and Python, with state machines, behavior trees, path-planning algorithms, and simulation/real-world testing.
Software Engineering Praktikum (m/w/d)
Internship (Praktikum) at KnowWay GmbH, a startup building AI products for Germany's critical infrastructure (energy, telecom). The intern develops features end-to-end with TypeScript, Python and PostgreSQL, builds interfaces for AI agents, writes tests, and can help deploy with Docker/Kubernetes. On-site, preferably Hamburg.
Senior Software Engineer II - Agentic Intelligence
Build and ship production-grade AI agents that investigate, reason, and act on live observability data in Honeycomb’s Canvas product, leveraging its high-cardinality data store to create unique agent capabilities.
Systems Engineer - Behavior Verification
Systems engineer at Waabi defining the scenario and test sets that decide whether autonomous-driving software is safe to release: designing and validating behavior test sets, gatekeeping the release pipeline, and investigating behavior deficiencies. Core work spans Python, applied statistics, simulation, and AV safety verification.
Member of Technical Staff, Product & Engineering
Senior engineer at Workstreet who designs systems and directs AI agents to build the internal software and AI workflows that run the company — architecture, guardrails, testing, and security review — then owns features from idea through production in a daily-ship, AI-native environment. Language-agnostic; security company context.
Lead Software Engineer Python API - Fintech
Lead a small Python backend team at a well-funded, profitable FinTech startup building a core banking platform that integrates with players like HSBC. Roughly 50/50 architecture/design and people management — mentoring juniors, setting standards — using Python, FastAPI, and cloud (GCP) in a hybrid Central London role.
Senior Software Engineer, Backoffice Platform
Senior engineer owning Ably's backoffice platform — the systems holding customer packages, entitlements, limits, and billing, plus admin tooling used by Finance, Customer Success, and Support. Hands-on design and delivery in an AI-first, remote-first culture; Ruby on Rails helps but language-agnostic, with strong focus on architecture, testing, and observability.
Forward Deployed Software Engineer
Forward Deployed Software Engineer at a growth-stage defense-tech company building an AI-native platform for government agencies: you embed with users on customer sites, build and ship 0-to-1 prototypes end to end, and iterate quickly, with up to 50% travel. Core stack includes SQL, Java, and/or TypeScript/React; US citizenship required.
Forward-deployed Software Engineer
Forward-deployed full-stack engineer at GripFusion, a sports performance tech startup, building athlete-facing products: a React Native iPad app, new React web dashboard, mobile app, and 3D data visualizations on an AWS backend, while working directly with MLB players and coaches from the Ann Arbor, MI headquarters.
Senior Software Engineer
Senior platform engineer at Vectara building IaC, Helm charts, and backend features for its enterprise RAG/agentic AI platform; deploying and scaling ML inference workloads, driving CI/CD, observability, and customer deployments, with on-call rotation. Stack: Go/Python/Java, Kubernetes, Terraform, GCP/AWS/Azure.
Software Development Engineer - Tejas
Backend engineer on Sarvam's 'Tejas' team in Bengaluru building the context engine for enterprise AI agents: document ingestion pipelines, data/ontology modelling, retrieval with citations, and long-term agent memory. Production stack is Go with Temporal, OpenSearch and Postgres; hiring at 3–5 years of experience.
Founding Engineer – ERP & MES
Founding engineer at a seed-stage advanced-materials startup in Los Angeles: build the factory's operating system from scratch — an ERP/MES, CAD automation and simulation, and real-time telemetry in a digital twin. TypeScript on the frontend, Python or Go on the backend, working in person on the factory floor.
Founding Engineer – Restaurant AI Agents
Founding engineer at a seed-stage New York startup building an agentic AI operating system for restaurant back-of-house work (inventory, ordering, prep, invoices). You own the agent harness and the full-stack product around it (React), on-site in NY at a 9-9-6 pace, with $150k–$220k base plus 1–3% equity.
Lead Software Engineer
Hands-on lead engineer at Zurich Soft Robotics, a startup behind Solskin, a climate-adaptive solar facade. You code daily across the full stack — Python/FastAPI/PyTorch backend, embedded C/C++ on STM32 and Beckhoff PLCs, PostgreSQL/TimescaleDB, Docker/AWS — and set software direction with the CEO and CTO.
Lumia Security- Senior Software Engineer
Senior software engineer at Lumia, a Team8-backed early-stage AI security startup in Tel Aviv. You'll design, build and own Go backend microservices and network-facing components (proxies, traffic handling) for a high-performance, cloud-native AI security platform.
Software Engineer
Full-stack engineer at Ctrl Alt, a scaling tokenization fintech at the intersection of capital markets and blockchain, building investor-facing features (portfolios, voting rights) and partner ordering APIs in small feature teams. Core stack is TypeScript/JavaScript backends (Express/NestJS) with REST APIs; role is based in Northern Ireland.
Senior Software Engineer, Clinical Trials Platform (Python)
Senior full-stack engineer building Meadow Health's multitenant telehealth platform as it expands into decentralized clinical trials: a Python/Django backend, Angular/TypeScript frontend, and PostgreSQL on AWS with CDK, delivering HIPAA- and 21 CFR Part 11-compliant eligibility screening, eConsent, and ePRO features. Remote role reporting to the CEO, with equity.
Senior Software Engineer (Remote)
Senior Software Engineer at Slate, a US direct-to-consumer EV truck startup: design, build, and own customer-facing features on the digital platform covering vehicle discovery, customization, and the ownership journey. Day to day: deliver scalable web services/APIs on cloud infrastructure, write tests, review code, and collaborate with product and UX.