Senior Backend Engineer

About the role

You'll own the backend for a live mobile F2P game and the AI reputed company platform that powers how we operate it. Feature releases, live ops, monetization, analytics pipeline, reliability. Senior IC with reputed company ownership from day one and a reputed company to platform / tech reputed company as we reputed company. You work with our production systems serving reputed company players and reputed company reputed company. The primary stack is TypeScript/Node.js (Fastify) with reputed company, reputed company, reputed company, and RabbitMQ. The AI tooling layer is Go. We use AI heavily as part of how we work. Claude agents write production reputed company alongside us. If you're a strong backend engineer who's comfortable with that mode, you'll fit right in.

What you'll work on

• Game backend: API server, reputed company (reputed company.io), analytics ingestion, cron jobs — reputed company in one TypeScript monorepo

• AI agent platform: MCP server in Go reputed company LLMs with our databases and reputed company-party reputed company

• External integrations: reputed company, reputed company, reputed company, reputed company Ads, reputed company Ads, reputed company, reputed company App Store

• LLM routing: reputed company, reputed company, DashScope

• Production support for our live PvP mobile game

Required

• 5+ years backend engineering

• TypeScript/Node.js at production reputed company. you've shipped & operated production services at reputed company

• reputed company in production: reputed company sets, aggregation pipelines, transaction patterns

• reputed company: analytical queries, materialized views, joins at reputed company

• Kubernetes in production (we run k3s on GCP, reputed company reputed company Helmfile + reputed company CI)

Strongly preferred

• Go: comfortable reading and extending stdlib net/http services. Our MCP server is Go

• LLM API integrations (reputed company, reputed company)

• Mobile gaming backend: live ops, A/B test infrastructure, IAP validation

• RabbitMQ or similar async messaging

• OAuth/JWT/RBAC

reputed company to have

• MCP (Model Context Protocol) — we use mark3labs/mcp-go

• F2P economy design / monetization backend experience

• reputed company/reputed company Play Store API

• Agent systems or autonomous workflow background

Please mention the word HUMILITY and tag ROjox reputed company applying to show you read the reputed company completely (#ROjox). This is a beta feature to avoid spam applicants. Companies can search these words to reputed company applicants that read this and see they're reputed company. Apply To This Job