Founding Data Scientist

We’re looking for someone who thrives at the intersection of messy data, sharp analysis, and fast-moving product. Most of the data we deal with isn’t clean—it lives in SharePoint drives, project databases, PDFs, Word documents, PowerPoints, and Excel sheets. Your job is to make sense of that chaos and turn it into structured insight that powers our AI systems.

€75000 - €125000

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Founding Staff [or Senior] Voice AI Systems Engineer

Frontier is looking for a Founding Voice AI Systems Engineer (Senior or Staff level) who wants to do the most important work of their life. The selected individual will own huge parts of Frontier’s voice platform (that lives on the cloud and on HW and their work will have extreme impact on the productivity, safety, and comfort of the critical frontline workers and warfighters powering and protecting the world.

$200,000 - $300,000

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CTO - Full-stack / AI Engineer

We are looking for a highly skilled CTO to lead a team of three engineers. The role requires expertise in NextJS, React, and API development, with a focus on building scalable, high-performance applications. You will oversee the creation of reusable components, design systems, and seamless integrations. Collaboration with design and development teams will be key in driving product innovation and technical excellence.

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Prompt Engineer / LLM Specialist (up to $100/h, Warsaw or Remote)

Looking for an engineer who can push LLMs to the limit: long context, cache use, structured outputs, deduplication, and fact consistency. $100/h for the right person. Try the recruitment task: github.com/bbarwik/ai-summarization-challenge Contact: [email protected]

up to $100/h

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Full Stack AI Engineer

We are looking for exceptional engineers to join our fast-growing team automating manual processes for legal professionals using LLMs. You'll play a central role in developing our AI product and have end-to-end ownership of new features.

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AI Product Engineer

Langdock is the LLM platform trusted by 1,500+ companies to serve AI features to 100k+ users. After hitting $9M ARR with 10× YoY growth, we’re growing our Berlin crew. As an early engineer, you’ll own product features end-to-end alongside the founders and shape how the world plugs conversational AI into business. If building fast, shipping often, and seeing code used by thousands excites you, let’s talk.

€80,000 - 120,000

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AI Engineer

Marblism is building AI employees for business owners. Our platform creates intelligent agents that step into everyday roles: sales outreach, customer support, social media management, executive assistance, and more. We're a team of 5 looking and looking for an AI Engineer to own our future agents we want to build: website developer, business coach and CFO.

£80,000

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AI Agent Engineer

We’re looking for an AI Agent Engineer – a software engineer with deep experience in ML, LLMs, and/or agentic systems – to help push the limits of our internal agent framework and shape its design. You’ll work side-by-side with researchers, ML engineers, and leadership to turn ambitious ideas into real-world systems. Expect to move fast, handle ambiguity, and fill the critical execution gap between research and production.

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Senior Product Engineer, AI

We’re looking for Senior Product Engineers to join the AI Group to build Intercom’s AI-powered products. Product Engineers working in ML work closely with both our ML Scientists and product teams. They must deeply understand our product, our customers, our ML tech stack and our broader product stack. Our group is responsible for defining new ML features, researching appropriate algorithms and technologies, and rapidly getting first prototypes in our customers’ hands.

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Founding Engineer

Effective AI, based in San Francisco, is building AI Teammates to transform complex knowledge work, starting with the $1T U.S. Property & Casualty insurance market. As a Founding Software Engineer, you’ll design and build core systems enabling AI agents to reason, adapt, and use tools to tackle underwriting and claims. We seek ambitious builders passionate about AI, with strong coding skills and problem-solving abilities. Competitive pay, equity, and top benefits included.

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Founding AI Engineer

Join Translucent as a Founding AI Engineer to build the future of accounting with AI. Lead architecture and development of production LLM applications for our platform serving thousands of companies. Own technical design, build evaluation systems, implement safety guardrails, and optimize RAG performance. Seeking 4+ years backend experience, LLM shipping experience, and expertise in prompt engineering, RAG, and AI evaluation tools. High-impact role with meaningful equity in London (hybrid).

Competitive market salary

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Full-Stack AI Engineer (f/m/x) (Founding Team)

We're tackling the €1.6T of annual waste in construction by building agentic AI that turns project data into automated workflows. As an early member on our team, you will design and build production LLM systems that have a massive impact, where your code eliminates weeks of manual work. We are a well-funded pre-seed startup with live customers, and we ship quickly using a modern TypeScript and LangChain stack. This role offers €55K-€85K salary + equity.

€55K-€88, depending on equity.

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AI Research Engineer

Arva AI is revolutionising financial crime intelligence with our cutting-edge AI Agents. By automating manual human review tasks, we enhance operational efficiency and help financial institutions handle AML reviews, while cutting operational costs by 80%. As an AI Research Engineer, you’ll play a pivotal role in building and iterating on LLM-based and agentic features of our AI-powered compliance platform such as document fraud detection and web due diligence. More of a product person? See https://arva.ai/company/careers/full-stack-product-engineer

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Forward Deployed Engineer (m/w/d)

Join Delvo as a Forward Deployed Engineer building autonomous procurement intelligence agents for and with our customers. You'll architect real-time reasoning systems that process supplier negotiations, develop LLM-powered strategy generation, and build scalable agent orchestration frameworks. Work with experienced founders from McKinsey and PwC to shape the technical architecture in a well-funded, high-growth domain. Immediate impact on AI systems handling millions in procurement decisions.

Mix of cash and equity

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Senior AI Server Engineer

BigBox, maker of POPULATION: ONE, is seeking an experienced Senior Server Engineer who can shape the future of AI powered games. We’re exploring a new frontier where AI is core to making games and we’re looking for engineering leaders to discover that future. The ideal candidate has their own AI side projects and enjoys discovering the latest AI development tools to increase productivity.

$147,000/year to $208,000/year + bonus + equity + benefits

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Let Dex AI find you your next engineering role

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$100,000-250,000

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