Senior Backend Engineer Go (m/w/d) Cologne, DE / Remote

Ultrasoft; Köln; Hybrid; EUR 75.000 - 110.000; Vollzeit

Benefits dieser Stelle

Brand-new cozy office in Cologne

Direct collaboration with founders

Real ownership, no micromanagement

Path to engineering lead

AI-driven daily workflows

Zusammenfassung

ProfitPath is an analytics platform for ecommerce sellers. You will own Go modules from architecture to deployment, building scalable microservices and data pipelines. You will work closely with the CTO and shape feature prioritization while driving system-wide improvements.

The role emphasizes concurrency, anti-bot strategies, and real-time data processing, with opportunities to grow into an engineering lead role in a fast-moving team.

Qualifikationen

• 3+ years of Go in production with a focus on concurrency and scalable architectures.
• Hands-on experience in web scraping, TLS fingerprinting, proxies and anti-bot strategies.
• Proficient with Git, CI/CD and multi-repo workflows.

Aufgaben

• Own modules and services from architecture to deployment.
• Work on new features, optimize systems, and scale existing infrastructure.
• Collaborate directly with the CTO and influence prioritization.

Kenntnisse

Go backend

Concurrency

Worker patterns

Service architecture

CI/CD

Git workflows

Web scraping

Anti-bot strategies

Multi-repo workflows

Tools

Kafka

ClickHouse

Grafana

Linux

Jobbeschreibung

About ProfitPath

ProfitPath is an analytics platform for e-commerce merchants. We help Amazon sellers identify profitable products, monitor prices in real time, and scale data-driven across European marketplaces. Our backend is built on Go microservices, PostgreSQL, Redis, and various worker systems for data processing at scale. The frontend is Next.js/TypeScript.

The Role

You work directly with the CTO and take ownership of your own modules and services — from architecture to deployment. The scope is broad: new features, optimizing existing systems, scaling. You have a say in what gets prioritized. Long-term, there's a clear path to an engineering lead role.

What We Expect

• 3+ years of Go in production — concurrency, worker patterns, service architecture
• Web scraping — TLS fingerprinting, proxy management, anti-bot strategies
• Git, CI/CD, multi-repo workflows

Nice to Have

• Kafka or event streaming
• ClickHouse or analytics databases
• Ops fundamentals — Grafana, monitoring, Linux
• E-commerce / Amazon FBA domain knowledge
• Basic Next.js/TypeScript knowledge

Mindset

• You think in systems, not tickets. Edge cases, scalability, and maintainability are never afterthoughts.
• You simplify existing code instead of piling on complexity.
• You actively use AI tools and continuously improve your workflows — not as a trend, but as a genuine productivity lever.
• You learn on your own initiative. New tools, new patterns, new domain knowledge.

What We Offer

• Brand-new cozy office in the heart of Sülz, Cologne
• Direct collaboration with the founders — short feedback loops, fast decisions
• Real ownership instead of micromanagement
• A path to engineering lead
• A team that treats AI as a core part of daily work