Senior AI Engineer

Apify is a marketplace of ready-to-run tools for AI that automate work on the web. Thousands of Actors get web data, generate leads, monitor social media, track competitors, and integrate with existing apps and agents. Actors are created by a global community of builders who earn from them, while Apify manages infrastructure, billing, and distribution.

Join us to help people put the web to work. Apify can find missing children, protect consumers from fake discounts across the EU, and feed data to AI chatbots.

Working on our mission to build the largest marketplace of tools for AI, we're becoming one of the pioneers in MCP dynamic tool discovery and agentic payments via Coinbase's x402 standard, letting autonomous agents discover the right tools and pay for them on their own. Because we serve both humans and machines, we're also making natural language a first-class interface to the platform.

We stay close to where this is happening: we show our work at conferences like the AI Engineer World's Fair, where we spoke on the emerging agentic economy, and the MCP Dev Summit; we host our own Prague Crawl, where Jan Curn made the case that "MCP doesn't suck, your agent does"; and we regularly rotate people through San Francisco. We're looking for an AI Engineer to help build all of this. It's a small team with a lot of surface area, so you'll own real problems end-to-end.

What you'll be working on:

• Build and maintain the Apify MCP Server, turning tens of thousands of Actors into tools that agents can reliably call.

• Keep the server ahead of a protocol that changes fast and often breaks: stateless transports, authorization hardening, and tool discovery.

• Shape the agent behind Apify AI, from the runtime it runs on to the tools it reaches and the rough edges that surface when it runs a full task end-to-end.

• Help autonomous agents discover and pay for Apify tools.

• Build evals that turn real production traces into tests, catch regressions in CI, and tell us whether a change made the product better or worse.

Who we're looking for:

• 5+ years building real software, with backend experience in Node.js/TypeScript or Python.

• You've built something on top of LLMs and know the pain firsthand: tools the model calls wrong, context that balloons, agents that confidently do the wrong thing.

• Curious and self-directed: comfortable with loosely defined problems and keeping up with a field that changes every week.

• You use the Apify platform, or want to, and care about building tools other people enjoy using.

• Good communication skills in English.

Our tech stack:

• Frontend: React.js, styled-components, Storybook, Chromatic, Cypress, Playwright

• Backend: TypeScript/Node.js, Nest.js, Next.js, Docusaurus, Vitest

• Infra: AWS Compute (Kubernetes (EKS), EC2, Lambda), Helm, Terraform, CloudFormation, MongoDB, Redis, DynamoDB, S3, GitHub Actions

• Monitoring: Grafana, Prometheus, OpenTelemetry, Mezmo, Sentry, PagerDuty

• Tools: GitHub, Notion, Google Workspace, Slack

• OS, code editor, and AI assistant of your choice (Claude premium with unlimited tokens, GH Copilot, Cursor, Gemini, or JetBrains AI)

• Process: two-week sprints, code reviews, tests, automating whatever we can, and deploying multiple times per day.

Why should you work at Apify?

• Space, support, and autonomy for personal growth, with a direct impact on Apify's success

• Full-time position in our amazing offices in Prague (100Yards) or Brno (Titanium) 🏰

• Flexible working hours (perfect for both night owls 🦉 and early birds 🐥)

• Nobody counts holidays as long as the work gets done 💪

• Unlimited Claude for every Apifier. We don't count tokens. Just use them well 🤖

• Stock options and profit sharing 💰

• Free Apify credits for your friends and family to try the platform 🎁

• We welcome pets, kids, and bikes at the office 🐕👨‍👧

• Epic team buildings and offsites 🚢 with biking, canoeing, and other adventures 🪂

• Solid education and training budget, conference tickets, internal “Eat & Learn” sessions, and the possibility to work across teams 👩🏼‍💻👨🏽‍💻

• Generous hardware budget 💻

• Free lunches every day when you're in the office 🌮🍱🍜🍕🥡

• Unlimited supply of ☕ & 🍺 and snacks

• Free entry to the wonderful Prague Zoo 🐘

• Free Multisport card 🏋

• Regular massages in the Prague office, mostly covered by Apify 💆

• Ping-pong, chess, PS5, foosball league after lunch.

For more details about Apify and what it's like to work with us, see our Careers page.