Senior AI Engineer

2 weeks ago

Romania n8n Full time €90,000 - €120,000 per year
n8n is a workflow automation platform that uniquely combines AI capabilities with business process automation. We give technical teams the flexibility of code with the speed of no-code, backed by a passionate community of builders. With 500 integrations and fair-code principles, we're revolutionizing how businesses connect their systems and processes.

We were founded end of 2019 and currently:
  • We're a diverse team of 100 talented people
  • Our annual recurring revenue is growing 6x year-over-year
  • With 100k GitHub stars, we are in the top 100 most popular projects of all time on Github
  • We're Europe's 25th fastest growing startup in 2024 according to Sifted
  • We were Sequoia's first seed investment in Germany, and most recently secured our $60M Series B (February '25, led by Highland)

As a Senior AI Engineer, you'll drive intelligent features that redefine how users build automations. You'll build AI-powered capabilities, from natural language input to smart suggestions, that make creating workflows faster and more intuitive.

You'll collaborate across engineering, product, and design to bring generative AI and LLM-based enhancements into the core user experience. You'll improve existing AI integrations, develop new ones, and shape how AI powers our product.

You'll work across the entire AI feature lifecycle:
  • Architect and implement AI-powered capabilities: code generation, intelligent node creation, and workflow optimization
  • Integrate LLM APIs and embedding models for text-to-workflow and natural language code suggestions
  • Design and iterate on prompts to improve model output and user experience
  • Build internal tooling, evaluation benchmarks, and automated testing for AI components
  • Collaborate closely with other engineers to ensure AI features are reliable, performant, and scalable
  • Balance experimentation with impact: ship quickly while focusing on user value
  • Stay current with advances in LLMs, prompt frameworks, and developer tools - and bring those insights into our roadmap

Requirements
  • 5 years of experience building web-based products, ideally in B2B SaaS startups
  • Strong backend development skills with TypeScript, , and API design
  • Proven track record shipping AI-powered features in production with LLM APIs (OpenAI, Anthropic, etc.) and understanding of how to translate machine intelligence into user value
  • Hands-on experience with prompt engineering, embedding models, and vector stores
  • A user-focused mindset: you care about delivering features that solve real problems
  • A bias for shipping and learning - fast iteration is second nature to you

Bonus Points For
  • Experience fine-tuning LLMs or working with retrieval-augmented generation (RAG) systems
  • Frontend experience using Vue or React
  • Technical writing or documentation contributions, especially around developer tools or AI

n8n is an equal opportunity employer and does not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, gender identity, age, marital status, veteran status, or disability status.

We can sponsor visas to Germany; for any other country, you need to have existing right to work.

Our company language is English.

You care about diversity and inclusion? We do too Check out our Diversity, Inclusion and Belonging initiatives at n8n ().

Location disclaimer: If you see multiple job postings for the same role, it is most likely because we're hiring remotely for this role and posting in different locations to make sure every potential candidate can see the role. Please apply to the location you're the most likely to work from in the future.

Benefits
  • Competitive compensation – We offer fair and attractive pay.
  • Ownership – Our core value is to "empower others," and we mean it—you'll get a slice of n8n with equity.
  • Work/life balance – We work hard but ensure you have time to recharge:
    • Europe: 30 days of vacation, plus public holidays wherever you are.
    • US: 15 vacation days, 8 sick days, plus public holidays wherever you are.
  • Health & wellness –
    • Europe: We provide benefits according to local country norms.*
    • US: Comprehensive medical (PPO 1200), dental, and vision plans.
  • Future planning –
    • Europe: We provide pension contributions according to local country norms.*
    • US: 401(k) retirement plan.
  • Financial security –
    • Europe: We provide benefits according to local country norms.*
    • US: Short-term & long-term disability insurance, life & AD&D coverage, and additional hospital coverage.
  • Career growth – We hire rising stars who grow with us You'll get €1K (or equivalent) per year to spend on courses, books, events, or coaching to level up your skills.
  • A passionate team – We love our product, and we prove it with regular hackathons where we see who can build the coolest thing with it
  • Remote-first – Our team works remotely across Europe, with regular off-sites for team bonding. Some roles, like sales in the US, are hybrid—please check the job description.
  • Giving back – We're big fans of open source, and you'll get $100 per month to support projects you care about.
  • Transparency – We all know what everyone's working on, how the company is doing—the whole shebang.
  • An ambitious but kind culture – People love working here—our eNPS for 2024 is 94
  • Country-specific details are provided in your contract.

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