Senior Backend Engineer (Go) (m/w/d)
RemoteGermany or Köln, North Rhine-Westphalia, Germany
Job Summary
Own modules and services from architecture through deployment, building new features and optimizing existing systems to drive scaling. Design and operate data processing pipelines handling millions of product data points while conducting code reviews and shaping engineering standards. Collaborate directly with the CTO on priorities and technical direction, with a long-term perspective toward an Engineering Lead role. Manage PostgreSQL schema design, REST API implementation, and web scraping strategies including anti-bot measures. Work within a Go microservices environment featuring Next.js frontend, Kafka, and ClickHouse, utilizing AI tools as a core productivity lever. Join a small team in Cologne with direct founder access, 30 days vacation, and a 1,200 € remote budget.
Required Qualifications
- 3+ Jahre Go in Production — Concurrency, Worker-Patterns, Service-Architektur
- PostgreSQL — Schema-Design, Query-Optimierung
- REST API Design — JWT, OAuth, API Keys, Middleware
- Web Scraping — TLS-Fingerprinting, Proxy-Management, Anti-Bot-Strategien
- Git, CI/CD, Multi-Repo-Workflows
Desired Qualifications
- Kafka oder Event-Streaming
- ClickHouse oder Analytics-Datenbanken
- Ops-Grundlagen — Grafana, Monitoring, Linux
- E-Commerce / Amazon FBA Domain-Wissen
- Next.js/TypeScript-Grundkenntnisse
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