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Senior Backend Developer; Python

Job in Zürich, 8058, Zurich, Kanton Zürich, Switzerland
Listing for: Cordys Switzerland AG
Full Time position
Listed on 2026-02-28
Job specializations:
  • Software Development
    Python, Software Engineer, DevOps, Backend Developer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 CHF Yearly CHF 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Senior Backend Developer (Python)
Location: Zürich

We are creating value for global customers with AI. Now, we are looking for a seasoned Python Backend Developer to join our development team. You will be responsible for building scalable, resilient server-side logic and managing application life cycles in a Kubernetes-orchestrated environment.

As an ideal candidate,
you don't just write code
;
You understand the business needs (use cases), and how that code behaves in production, how to automate its journey through a CI/CD pipeline
, and how to leverage AI-assisted development tools to boost velocity and code quality.

Core Responsibilities
  • Architect & Develop: Design and maintain high-performance, low-latency Python applications using frameworks like FastAPI or Django.
  • Orchestration & Scaling: Deploy and manage microservices within Kubernetes (K8s), ensuring proper resource allocation, service discovery, and monitoring.
  • Automation (CI/CD): Own the "build-test-deploy" cycle by configuring and optimizing pipelines (Git Lab, Git Lab pipeline, Git Lab CI, or Jenkins).
  • System Design: Integrate various data storage solutions (Postgre

    SQL, Redis, Mongo

    DB) and message brokers (Rabbit

    MQ, Kafka).
  • AI Integration: Utilize AI-driven tools (e.g., Claude, Cursor, or LLM APIs) to accelerate refactoring, documentation, and unit test generation.
Technical Requirements/Skills

Languages

Frameworks

FastAPI, Pydantic, SQL Alchemy, Optional:
Celery, Pytest, Strawberry (Graph

QL)

Databases

Infrastructure

CI/CD

Observability

Prometheus, Grafana, ELK Stack, Optional:
Open Telemetry integration

Preferred Experience:

The "AI-Enhanced" Developer

We value candidates who embrace the future of coding. You should have:

  • Experience using AI pair programmers to reduce boilerplate and catch edge cases.
  • An understanding of how to integrate LLMs into backend workflows (prompt engineering, RAG, or fine-tuning APIs).
  • A "Dev Ops mindset"—you believe that "done" means the code is running smoothly in production, not just passing on your local machine.
  • You know how to benefit from Claude, Perplexity, CoPilot, and others to create better code faster.
Why Join Us?

You’ll work in a high-trust environment where we prioritize clean code
, automated testing
, and continuous learning
. We don't just use Kubernetes because it's trendy; we use it to solve complex scaling problems, and we want you to help us steer that ship.

Our Philosophy:

We believe in "boring" infrastructure and "exciting" features. We automate the mundane so you can focus on solving the hard problems.

#J-18808-Ljbffr
Position Requirements
10+ Years work experience
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