Fullstack Engineer, Store

Apify is the largest marketplace of tools for AI. Thousands of Actors helping people and agents get real-time web data, track competitors, generate leads, or integrate their apps. Actors are built by a global creator community that now earns more than $1.5 million every month.

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.

Apify is looking for a Fullstack Engineer to join the Discovery team. Discovery owns how people and AI agents find the right tool on Apify Store: search, recommendations, and the way Actors are categorized and presented. You'll work across the stack, building the Store surfaces users see and the scoring, ranking, and quality pipelines behind them, so that every user and agent lands on the Actor they need. It's one of the highest-leverage problems at Apify: when discovery works, activation, onboarding, and retention follow.

What you'll be working on:

• Build and improve Store search: the relevance, ranking, and query understanding that gets users and AI agents to the right Actor fast.

• Integrate and experiment with recommender systems that surface the most relevant Actors for each user, context, and use case.

• Develop the Store surfaces in React/TypeScript: search results, category and listing pages, and the end-to-end "find the right Actor" experience.

• Build the backend behind discovery: scoring services, quality-evaluation pipelines, and the data processes that keep Store categorization accurate as the catalog grows.

• Run A/B experiments to measure how discovery changes move activation and retention, and let the results decide what ships.

• Work with product, design, and data to turn "help users and agents find the right tool" into concrete, measurable improvements.

Who we're looking for:Must-haves:

• 3+ years of professional experience building fullstack web applications, with a track record of shipping and owning user-facing features. We're aiming for a senior hire, but we'll happily talk to strong mid-level engineers ready to step up.

• Strong skills developing and debugging modern single-page applications in TypeScript/React, with Node.js-based backends.

• Comfort owning a problem end-to-end across the stack, from the UI a user touches to the services, scoring, and data behind it.

• An experiment-driven mindset: you use A/B tests and metrics to decide what actually works.

• Good communication skills in English, and a collaborative approach with product, design, and data.