Senior Software Engineer - Query Engine & Database Systems

Celonis
Munich, Germany

Who this role is best for

System programmers with experience in modern C++ and Java will find this senior role in Munich focused on building a highly parallelized and distributed database.

Best fit for

  • Candidates with 5+ years of experience in building productive systems and strong algorithmic understanding
    — “Experience in software development for productive systems (as senior 5+ years)”
  • Individuals who thrive in ownership-driven environments and can lead technical initiatives
    — “Take full responsibility from end-to-end - from problem to solution”
  • Engineers with a background in database internals or distributed systems and a passion for performance optimization
    — “Solid knowledge in one or more of the following areas: Parallel Computing, Distributed Systems or Database Internals”

Things to consider

  • The role requires fluency in English, with German being a supplementary advantage
    — “Excellent communication skills in English, German is a plus”
  • Candidates must be prepared to work in a hybrid model with in-office collaboration
    — “flexible hybrid work model that balances remote focus with vibrant office collaboration”

How to stand out

  • Demonstrate experience in performance engineering and benchmarking solutions
    — “Challenge and benchmark our solutions using performance engineering principles”
  • Showcase your ability to mentor and lead teams when discussing past roles
    — “Mentor project teams and more junior engineers”
Pace · Fast PacedCollaboration · HighAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • Experience in software development for productive systems
Typical background
University degree in Computer Science or comparable education

Skills & requirements

Required

System ProgrammingC++JavaParallel ComputingDistributed SystemsDatabase InternalsPerformance EngineeringCloud EngineeringLinux SystemsInfrastructure As CodeBuild SystemsPerformance Monitoring

Preferred

German Language

Stack & domain

System ProgrammingC++JavaParallel ComputingDistributed SystemsDatabase InternalsCloud EngineeringLinux SystemsInfrastructure As CodeBuild SystemsPerformance MonitoringCommunicationTeamworkLeadershipDatabase SystemsQuery Engine

About the role

Original posting from Celonis via Greenhouse

Celonis is the trusted platform to industrialize Enterprise AI. At our core is the Celonis Context Model — which combines process data, business knowledge, and intelligence into a living digital twin of the enterprise that AI can actually understand, turning AI's operational blind spots into operational clarity. World's leading companies trust Celonis and its global ecosystem of partners to make their AI agents, people, systems, and processes work together, achieving transformational outcomes. We believe there's a massive opportunity to unlock global productivity and sustainability by giving AI the context to understand how every business process really works. Join our mission to make processes work for people, companies, and the planet.

The Team:

You will be part of a team that owns the Process Query Engine which is an analytical database and our core product for process mining that enables our customers to interactively mine enterprise-sized data sets. In order to handle the strong growth of our customer base and their demands, we are continuously expanding our Engine domain and heavily invest in the performance and scalability of our engine.

The Role:

For the Core squad of our Process Query Engine team, we are looking for a Software Engineer with solid experience in system programming and the skills to build a highly parallelized and distributed database with modern C++ and Java. As part of a talented engineering team, you’ll develop and implement new concepts and algorithms for our Process Query Engine, take ownership of our solutions to increase reliability and performance, and drive initiatives to shape future innovations.

The work you’ll do:

Develop new concepts and algorithms for data management and query execution

Challenge and benchmark our solutions using performance engineering principles

Shape and contribute to our development and maintenance processes

Communicate and coordinate with stakeholders and customers

Take responsibility for the performance, scalability, and reliability of our solutions

Support in problem-solving and optimization

Mentor project teams and more junior engineers

Lead projects and define technical roadmaps

Take full responsibility from end-to-end - from problem to solution

The qualifications you'll need:

University degree in Computer Science or comparable education

Experience in system programming with modern C++. Other languages, Java in particular, are a plus

Solid knowledge in one or more of the following areas: Parallel Computing, Distributed Systems or Database Internals

Experience in software development for productive systems (as senior 5+ years)

Experience in cloud engineering, Linux systems, infrastructure as code, build systems, performance monitoring is a plus

An analytical mindset with great understanding of performance and algorithms

Excellent communication skills in English, German is a plus

What Celonis can offer you:

Pioneer Innovation: Work with the global leader in Process Mining and the Process Intelligence Graph to shape the future of AI-driven business operations.

Ownership from Day 1: Every full-time "Celonaut" is an owner, receiving Restricted Stock Units (RSUs) and merit-based refresh grants.

Unrivaled Family Support: Benefit from our inclusive parental leave policy—24 weeks of fully paid leave for primary carers and 12 weeks for supporting carers, available from your first day of employment.

Work-Life Integration: Enjoy Unlimited PTO (in applicable regions) and generous PTO globally, as well as a flexible hybrid work model that balances remote focus with vibrant office collaboration.

Continuous Growth: Elevate your skills through our 70-20-10 learning framework, mentorship programs, and access to a dedicated learning platform.

Holistic Well-being: Prioritize your health with subsidized Wellhub memberships, mental health counseling, and dedicated "Wellness Weeks" that prioritize work/life balance.

Drive Sustainability: Participate in annual Impact Days, where you receive paid time off to volunteer for community and environmental causes with your local office, or virtually.

Global Inclusion & Belonging: Find community through our Inclusion Think Tank and participate in our annual Inclusion Days, ensuring every voice is heard and valued.

Value-Driven Impact: Join a mission-led organization where our core values—Live for Customer Value, The Best Team Wins, We Own It, and Earth Is Our Future—drive every decision.

About Us:

Celonis is the trusted platform to industrialize Enterprise AI, empowering organizations to analyze, design, and operate AI-driven processes. The Celonis Platform is powered by the Celonis Context Model, which combines process data, business knowledge, and intelligence to create a living digital twin of the enterprise that AI can understand — turning AI’s operational blind spots into operational clarity. Industry-leading companies around the world trust Celonis and its global ecosystem of partners to make their AI agents, people, systems, and processes work together, achieving transformational outcomes. Celonis is headquartered in Munich, Germany, and New York City, USA, with more than 20 offices worldwide.

Get familiar with the Celonis Process Intelligence Platform by watching this video.

Celonis Inclusion Statement:

At Celonis, we believe our people make us who we are and that “The Best Team Wins”. We know that the best teams are made up of people who bring different perspectives to the table. And when everyone feels included, able to speak up and knows their voice is heard - that's when creativity and innovation happen.

Your Privacy:

Any information you submit to Celonis as part of your application will be processed in accordance with Celonis’ Accessibility and Candidate Notices

By submitting this application, you confirm that you agree to the storing and processing of your personal data by Celonis as described in our Privacy Notice for the Application and Hiring Process.

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Source: Celonis careers (Greenhouse)

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