Senior Backend Engineer (Python) — m/f/d

Persohap GmbH

Berlin, DEOn-site

About the Role

We're a fast-growing product company building an AI-powered platform used by thousands of teams every day. We're looking for a Senior Backend Engineer to own critical services end-to-end — from design to production — and help us scale to the next order of magnitude. You'll join a small, senior team where your decisions have real impact.

Tasks

  • Design, build and operate scalable backend services (Python / FastAPI) and REST APIs.
  • Model and optimize PostgreSQL schemas; write efficient async queries.
  • Own services end-to-end: architecture, implementation, testing, deployment and monitoring.
  • Integrate third-party APIs and internal microservices behind a gateway.
  • Improve reliability, performance and security under high concurrency.
  • Collaborate with product and frontend to ship features that matter.
  • Mentor mid-level engineers and raise the bar on code quality.

Requirements

  • 5+ years building production backend systems in Python.
  • Strong experience with FastAPI (or Flask/Django) and async programming.
  • Solid PostgreSQL skills: schema design, indexing, query optimization.
  • Experience designing and scaling REST APIs and microservices.
  • Comfortable with Docker, CI/CD and cloud (AWS preferred).
  • Good understanding of auth (JWT/OAuth), caching and message queues.
  • Clear written and spoken English; pragmatic, ownership mindset.
  • Nice to have: Kubernetes, SQLAlchemy, observability (Prometheus/Grafana), LLM/AI integrations.

Benefits

  • Competitive salary + equity.
  • Remote-friendly with flexible hours.
  • Top-tier hardware and a yearly learning budget.
  • 30 days paid vacation.
  • Small senior team, real ownership, fast decisions.

Skills: Python, FastAPI, PostgreSQL, Docker, AWS, REST APIs, Microservices, SQLAlchemy, CI/CD, Redis.

If you like owning hard problems and shipping reliable systems at scale, we'd love to talk. The process is quick: a short AI video interview, then a technical conversation with the team. Apply today. Find Jobs in Germany on Arbeitnow

Job Overview

100% EnglishNo German required
Persohap GmbHHiring Company
Jun 23, 2026Date Posted
Senior Backend Engineer (Python) — m/f/d at Persohap GmbH — English Only | English Jobs in Germany