Senior Backend Engineer

New

AgileEngineGaming software

Workplace type: remote; Locations: Kraków, Olszańska St, 7, Warszawa, 00-002, Poznań, 60-001, Lublin, 20-001, Szczecin, 70-001, Kraków, Country code: PLContractSenior

Salary3,520 - 5,120 USD per month

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Job Details

Languages: Upper-intermediate English level; Languages: en B2
Experience: 5+ years of backend development with TypeScript on Node.js.
Required Skills: GraphQLNode.jsPostgreSQLSQLMySQLTypeScriptClickhouseRedisRESTful APIs

Requirements

Have 5+ years of backend development experience with TypeScript on Node.js.
Have a strong command of TypeScript's type system, including generics, inference, discriminated unions, and narrowing.
Have schema validation experience with Zod or similar.
Have strong SQL skills with PostgreSQL and/or MySQL, including schema design, indexing, query plans, live-data migrations, transactions, and locking.
Have experience running an analytical database at production volume; ClickHouse is preferred, with BigQuery, Druid, or similar also accepted.
Have experience designing caching with Redis or a compatible store, including invalidation strategies, HTTP cache headers, and CDN behavior.
Have experience designing and consuming REST and GraphQL APIs, including authentication and rate limiting.
Have experience with background jobs and message queues, including handling jobs that run twice or do not run.
Have experience with high-volume, user-facing production applications and taking a product from idea to production.
Use agentic AI coding tools hands-on every day in a real codebase and exercise judgment in checking their output.
Be comfortable reading and changing React code when a feature reaches the frontend.
Be flexible about working hours, including occasional evening or weekend coverage for game launches.
Have an upper-intermediate level of English.

Responsibilities

Build and maintain TypeScript REST and GraphQL APIs for user profiles, subscriptions, and game data.
Design database schemas, write queries, and manage migrations for PostgreSQL and MySQL.
Run ClickHouse analytics pipelines, materialized views, and dashboard queries.
Own cache layers, including Redis-compatible stores, cache invalidation, HTTP headers, and CDN purges.
Build scheduled jobs and queue consumers for game data sync, indexing, webhooks, payouts, and data-deletion requests.
Integrate third-party APIs, handling retries, backoff, and rate limits.
Process game images into map tiles, sprite sheets, and responsive image sizes.
Keep backend responses lean for Remix and Next.js pages.
Use and review AI coding agents, maintaining tests, lint rules, build checks, and agent instructions.
Deploy through Docker, GitHub Actions, and Kubernetes, and support high-traffic game launches.

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