Engineering roles at startups
121 open engineering roles at startups like Mistral AI, Qonto and Harmattan. Software, platform, infra and ML engineering roles, picked from the careers pages of the startups worth joining and refreshed every day.
63 companies hiring
Open roles 121
AI EngineerBuild the agent stack behind Modjo's conversational AI: LLM routing, evaluation and ML infrastructure for 600+ B2B revenue teams.ModjoModjoSeries AAI that records sales calls and automates CRM admin; used by 600+ B2B revenue teamsSee Modjo →
Front-end EngineerShip the interfaces that sales teams at 600+ B2B companies use every day.ModjoModjoSeries AAI that records sales calls and automates CRM admin; used by 600+ B2B revenue teamsSee Modjo →
Machine Learning EngineerBuild the agent stack behind Modjo's sales AI: LLM routing, evaluation and scaling for 600+ B2B revenue teams.ModjoModjoSeries AAI that records sales calls and automates CRM admin; used by 600+ B2B revenue teamsSee Modjo →
Engineering Team Lead, Managed K8sOwn Kubernetes as a product on Europe's sovereign AI cloud, scaling toward a gigawatt.Mistral AIMistral AISeries COpen-weight frontier AI models companies run on their own servers; trusted by ASML, backed by Nvidia and MicrosoftSee Mistral AI →
VP, Production PlatformRun the platform behind every Mistral model release: 55 engineers, from own cloud to on-premise.Mistral AIMistral AISeries COpen-weight frontier AI models companies run on their own servers; trusted by ASML, backed by Nvidia and MicrosoftSee Mistral AI →
Technical Program Manager, CloudBring new AI compute online at Europe's frontier open-weight model lab.Mistral AIMistral AISeries COpen-weight frontier AI models companies run on their own servers; trusted by ASML, backed by Nvidia and MicrosoftSee Mistral AI →
Senior Software Engineer, SupplyBuild the publisher integrations and deal services feeding streaming TV inventory to 12,000 brands, now with Walmart behind it.VibeVibeSeries BStreaming TV advertising as easy as search and social ads; used by 15,000 brands, backed by ElaiaSee Vibe →
Site Reliability Engineer, PlatformTake Qonto's single-region AWS setup multi-region for 750,000 customers. Pick your own major project, backed by three tech leads.QontoQontoSeries DOnline business bank for SMEs and freelancers; Series D, backed by Tencent and Tiger GlobalSee Qonto →
Research Engineer, Tokenizer & ProtocolsOwn the tokenizers every Mistral model ships with.Mistral AIMistral AISeries COpen-weight frontier AI models companies run on their own servers; trusted by ASML, backed by Nvidia and MicrosoftSee Mistral AI →
Forward Deployed EngineerDefine a new function: ship code into MasonOS while embedded in factories.IsembardIsembardSeries ANetwork of software-driven factories for precision parts in aerospace and defence; backed by Union Square VenturesSee Isembard →
Cloud EngineerBuild the same cloud on AWS and SecNumCloud-qualified infrastructure for a spacecraft maker, down to audit evidence.The Exploration CompanyThe Exploration CompanyEuropean reusable spacecraft, from the Nyx cargo capsule to the Storm engine with 180 tons of thrustSee The Exploration Company →
Engineering Manager, Design SystemRun the design system behind 90 million patients and 50+ designers.DoctolibDoctolibSeries FOnline booking and practice management software for doctors, Series F backed by Accel, General Atlantic and NVIDIASee Doctolib →
Software Engineering Manager, Accounting ProductLead engineers right after the first launch of Qonto Accounting: automatic bookkeeping, real-time VAT, AI chat, expanding across Europe.QontoQontoSeries DOnline business bank for SMEs and freelancers; Series D, backed by Tencent and Tiger GlobalSee Qonto →
SecOps EngineerProtect a defense prime's IP: hunt threats, run incident response and build the controls for advanced security certifications.HarmattanHarmattanSeries BAutonomous drone systems for defense; French Program of Record renewed, orders up fivefold in a yearSee Harmattan →
Senior Android Engineer, AI AgentsBuild AI agent experiences for 750,000+ businesses at a bank profitable since 2023.QontoQontoSeries DOnline business bank for SMEs and freelancers; Series D, backed by Tencent and Tiger GlobalSee Qonto →
DevOps, Core PlatformOwn deployments into air-gapped customer sites at a $1.4B defense prime.HarmattanHarmattanSeries BAutonomous drone systems for defense; French Program of Record renewed, orders up fivefold in a yearSee Harmattan →
AI Automation EngineerAutomate HR, finance, legal and manufacturing at a $1.4B defense startup, shipping in days.HarmattanHarmattanSeries BAutonomous drone systems for defense; French Program of Record renewed, orders up fivefold in a yearSee Harmattan →
Senior Software EngineerArchitect a higher-ed ERP still in construction with the CTO. Deploys several times a day, and the company is leaving France.HexaHexaSeries BStartup studio building software companies; 50 launched, including unicorns Front, Aircall and SpendeskSee Hexa →
Lead Software Engineer, IntegrationsOwn the integration layer behind a million monthly calls. No product manager, you decide.VoccaVoccaSeries AVoice AI that answers every patient call, live in 1,500+ practices with a fresh $20M Series ASee Vocca →
Senior Engineering Manager, IaaSSecond-line seat on Europe's sovereign AI cloud. Build Storage from zero as the group doubles.Mistral AIMistral AISeries COpen-weight frontier AI models companies run on their own servers; trusted by ASML, backed by Nvidia and MicrosoftSee Mistral AI →