Senior Backend Engineer

apsa Personnel Concepts GmbH
Vienna, Austria
2 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English, German
Experience level
Senior
Compensation
€ 65K

Job location

Vienna, Austria

Tech stack

Java
API
Agile Methodologies
Artificial Intelligence
Software as a Service
Software Quality
Code Review
Databases
DevOps
Django
Python
PostgreSQL
Node.js
Performance Tuning
Scrum
RabbitMQ
SQL Databases
Systems Integration
Backend
FastAPI
Kubernetes
Kafka
Front End Software Development
NestJS
REST
Docker
Go
Microservices

Job description

  • Develop and improve backend services: Build and maintain SaaS backends using Python, Django, Django REST Framework, and FastAPI - complemented by modern technologies like Go, Java, or NestJS
  • Apply architectural concepts: Use of Domain-Driven Design, modular monoliths (moduliths), microservices, and hexagonal architecture
  • Design event-driven systems: Implement asynchronous communication using RabbitMQ or Kafka
  • Optimize performance: Refactor existing systems, improve SQL queries in PostgreSQL, and ensure high-performing APIs
  • Ensure code quality: Write clean, tested, and documented code; conduct code reviews and actively manage knowledge within the team
  • Use modern tools: Leverage AI coding assistants and automation to increase efficiency
  • Collaborate in an agile way: Work with colleagues from product, frontend, and QA in a Scrum/Kanban setup

Requirements

  • Extensive experience: At least 10 years in backend development, solid knowledge of Python/Django, and experience with other backend languages or frameworks (e.g., Java, Go, Node.js/NestJS)
  • Architectural understanding: Confident in applying Domain-Driven Design, modular monoliths, microservices, and hexagonal architecture
  • Messaging know-how: Hands-on experience with RabbitMQ or Kafka in production environments
  • API expertise: Experience in building and integrating RESTful APIs; knowledge of FastAPI is a plus
  • Database skills: Solid knowledge of PostgreSQL - from schema design to performance optimization
  • DevOps mindset: Experience with Docker and Kubernetes is a plus
  • Agile work style: Team player with excellent English skills; German is a plus
  • Curiosity and willingness to learn: Openness to new tools, methods, and technologies

Benefits & conditions

  • Contribute, not just participate: Become part of a company evolving from startup to enterprise solution
  • Cutting-edge technologies: Work with current technologies and tools - directly in your daily projects
  • Growth & development: Continuous learning through collaboration with an experienced management team
  • International environment: Collaborate with a globally oriented team
  • Flexible working: Hybrid work model with remote days and a Vienna-based office

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