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Software Engineer - One Frontend

Celonis
Munich, Germany
Full Time
Posted December 9, 2025
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Job Description

A Software Engineer at Celonis is responsible for developing and optimizing frontend systems, implementing robust testing frameworks, and ensuring efficient software deployment processes within a cloud SaaS environment, while collaborating with cross-functional teams to improve application quality and performance.

Key Responsibilities

  • Develop and drive a consistent approach for building and deploying software, including standardizing tool sets for measurement and reporting.
  • Collaborate with engineering teams to improve application quality and release performance through early feedback and continuous improvement.
  • Integrate advanced software engineering practices and tooling into the development and deployment processes.
  • Ensure end-to-end system optimization through performance benchmarking, standardization, testing, and monitoring.
  • Build and evolve the Playwright UI testing framework for functional, performance, and accessibility tests.
  • Mentor engineering teams on test infrastructure usage and contribution.
  • Identify build and stability issues through design reviews and infrastructure sanity checks.
  • Analyze release issues to identify root causes and propose solutions.

Requirements

  • 4 years experience as a software engineer on cloud SaaS platforms
  • Deep knowledge of build infrastructure, CI pipelines, monitoring and analysis of various frontend functional tests
  • Expertise in Playwright and its infrastructure, as well as running large scale UI tests in parallel across shared resources
  • Working knowledge of TypeScript, JavaScript, Angular, shell scripting, and Java
  • Experience with Github, nx, Sonarcloud, Datadog, AWS, and Azure
  • Joy of doing root cause analysis (RCA) for incidents and solving build infrastructure problems
  • Excellent English verbal and written communication skills
  • Ability to operate independently as part of the 1FE Team to ensure end-to-end system optimization through performance benchmarking, standardization, continuous testing, and monitoring
  • Ability to develop and evolve Playwright UI testing framework and infrastructure for functional, performance, and accessibility tests in a self-service manner
  • Mentor engineering teams to use and contribute to the test infrastructure
  • Analyze release issues to understand the root cause of bottlenecks and propose solutions

Benefits & Perks

generous PTO
hybrid working options
company equity RSUs
comprehensive benefits
extensive parental leave
dedicated volunteer days
gym subsidies
counseling and well-being programs
clear career paths
internal mobility
dedicated learning program
mentorship opportunities
international team collaboration
autonomous team environment

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