2,918 Founding Engineer jobs
Founding engineer roles building the first product at early-stage startups.
Founding Senior Software Engineer (Poland)
Founding senior engineer at Clipbook, a media-intelligence startup that ingests and summarizes news, TV, podcasts, and social data in real time. You'd architect core backend systems, put LLM/ML pipelines (RAG, embeddings, agents) into production, and ship features end-to-end to 200+ customers using Python/TypeScript, PostgreSQL, and cloud infra.
Founding Senior Software Engineer (Netherlands)
Founding senior engineer at Clipbook, a media-intelligence startup whose platform ingests and summarizes news, TV, podcasts, and social media in real time. Day to day you architect and own backend/AI features end-to-end — building APIs, scalable systems, and LLM/RAG pipelines — shipping quickly to 200+ customers.
Founding Senior Software Engineer (Germany)
Founding senior engineer at Clipbook, a media-intelligence platform that ingests and summarizes news, TV, podcasts, and social data in real time. You'll architect core backend systems, put LLMs and RAG pipelines into production, and build scalable APIs shipping quickly to 200+ customers, using Python/TypeScript, cloud infra, and data tooling.
Founding Senior Software Engineer (Europe – Remote)
Founding senior engineer at Clipbook, an applied-AI media intelligence platform that ingests and summarizes news, TV, podcasts, and social data for 200+ clients. Day to day: architect core backend systems, put LLMs/ML into production (RAG, embeddings, agents), and build scalable APIs using Python, TypeScript, PostgreSQL, and AWS/GCP.
Software Engineer
Full-stack Software Engineer at Beacon, a fintech super app for immigrants relocating to Canada (banking, remittances, bill payments). You'll build and ship APIs, backend services, and user-facing features across the stack using databases, AWS, microservices, and CI/CD.
Software Engineer
Full-stack software engineer at a health-tech startup building the AI operating system for post-acute care. Day to day you own user-facing features end to end—design, implementation, testing, deployment, and support—using TypeScript, PostgreSQL, and AWS, while working with APIs, data models, and LLM-powered capabilities tied to real healthcare workflows. Remote in Toronto or Vancouver; hybrid in N
Software Engineer
Early full-stack software engineer at Decoda Health, a YC-backed AI-native operating system for elective-care clinics (med spas, wellness, aesthetics). You'll own features end-to-end across scheduling, charting, payments, patient messaging, and AI agents, working directly with users and founders to ship fast.
Software Engineer (Warsaw)
Full-stack engineer joining a YC-backed startup's Warsaw office (in-person, not remote) to build an AI-native platform that automates quoting and procurement for aerospace, defense, and industrial supply chains. Day-to-day is shipping end-to-end features from database schema to UI using Svelte, TypeScript, and Postgres.
AI & Data Systems Software Engineer (Hybrid)
Software Developer (2-5 years experience) building scalable code for Ringr.ai, Clintell's generative-AI product — working on architecture, testing, and collaborating with data scientists on AI solutions. Key tech: Django, databases, and CI/CD practices. Hybrid role in Madrid (2-3 days/week on-site).
Lead Software Engineer
Technical lead (not people management) setting the direction of Alti, the AI-agent product of Alternative Payments, an SMB fintech platform. Day to day: hands-on weekly coding, designing RAG/agent architectures, defining LLM evaluation and monitoring standards, and moving features from LLM-only to proprietary ML models using Go, TypeScript/JavaScript or Python.
Software Engineer
Software engineer at early-stage, VC-backed Skippr AI in Old Street, London, building a voice/vision AI agent that operates software for users. Owns features end-to-end across React UIs, scalable backend services, and agent orchestration (tool use/MCP, memory, real-time voice & vision) using TypeScript, Python, Hono, and Neon. In-office 5 days a week.
Data & Systems Engineer (m/w/d)
Owns the NetSuite ERP, the IT-side order process, and the Google BigQuery data warehouse at a fast-growing beauty e-commerce startup, while automating manual processes with an AI-first approach and ensuring IT security and system stability. Fully remote within Germany.
Founding Senior Software Engineer (UK + Europe)
Founding senior engineer at Clipbook, an AI-powered media-monitoring startup that ingests news, TV, podcasts, and social data to surface insights for 200+ clients. You'll architect backend systems, ship LLM/ML features (RAG, embeddings, agents) end-to-end, and build scalable APIs using Python/TypeScript, PostgreSQL, and cloud infra (AWS/GCP, Docker/K8s).
Member of Security Staff, IT Engineer
Senior hands-on IT & security engineer at Arena (an AI model evaluation platform) to own identity, endpoint, and access management: Okta SSO/SCIM and lifecycle automation, Apple-heavy fleet management (Intune, Apple Business Manager, CrowdStrike), extending entitlement controls to production/developer systems, automating manual workflows, and documenting operations for compliance. Onsite in San Fr
Software Engineer
Full-stack software engineer designing and building backend systems and React front ends for Rhombus Power's AI-powered defense/national-security intelligence platform. Leads code reviews, SDLC standards, and CI/CD while collaborating with product teams and customers, working with React, Node.js, PHP, and MySQL in Palo Alto.
Senior Software Engineer, ML Platform
Designs and deploys AI infrastructure for training biological foundation models, managing GPU clusters, storage, and MLOps tooling to support drug discovery research.
Senior Software Engineer, X-Scientist
Builds AI-powered backend systems, APIs, and developer tools that connect generative models to drug-discovery workflows for a biotech startup using AI in therapeutic discovery.
Lab Software Engineer
Lab Software Engineer at Xaira Therapeutics builds software to capture data from lab instruments, create scalable pipelines for instrument data, define data models for biological samples, and configure LIMS/ELN systems to support AI-driven drug discovery. Core technologies include Python and/or C#, SQL, AWS, and ELN/LIMS tools like Benchling, on-site in South San Francisco.
Software Engineer, AI Operations
Suno is hiring a full-stack software engineer in Boston (on-site 5 days/week) to join its AI Operations Engineering team, building internal agents, workflows, and tools that let non-engineering teams like support, legal, and finance scale without headcount. Work centers on the Django monolith, internal APIs/auth, MCP, and tools like Zendesk.
Senior / Staff Software Engineer, AI Operations
A senior/staff full-stack engineer on Suno's AI Operations Engineering team owns the direction and architecture of internal tooling, agents, and workflows that let ops teams (support, legal, finance, music ops) scale without headcount. Core stack includes a Django monolith, internal APIs/auth, MCP, and agentic AI tooling; role is on-site in Boston 5 days/week.