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.
Data Core is the storage abstraction layer behind Celonis' data pipelines. It sits between ETL workloads and the backends that run them, such as Databricks, Snowflake, StarRocks, Spark, and PostgreSQL. You will work mainly on three codebases:
- Data Core, a Java / Spring Boot service with gRPC and message-queue APIs.
- sqlglot, where we translate and optimize SQL across dialects.
- StarRocks, the OLAP engine we use as a backend.
- Implement features and fix bugs in Data Core backend integrations.
- Add and fix sqlglot dialect support: parsing, SQL generation, and transpilation correctness.
- Investigate StarRocks behavior and compatibility issues, and contribute fixes or workarounds.
- Debug slow or incorrect queries by following them from SQL text to query plan to results.
- Write unit and integration tests, especially for SQL translation edge cases.
- Take part in design discussions, write short design docs for your own work, and give and receive code reviews.
- As a Senior: lead small to medium projects end to end and help onboard newer teammates.
- Solid Java, or strong Python with the willingness to work in Java daily.
- Good SQL skills: joins, aggregations, window functions, and an understanding of how queries execute.
- Familiarity with at least one analytical or distributed data system (for example Spark, Snowflake, Databricks, Trino, ClickHouse, or StarRocks).
- Good testing and debugging habits.
- Clear written and spoken communication, and a habit of asking questions early.
- Exposure to how SQL parsers, ASTs, or query planners work.
- Contributions to open source projects, especially sqlglot or StarRocks.
- Experience with gRPC, message queues, or Kubernetes.
- Some C++ experience.
- Interest in query optimization and database internals.
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.
Use of Artificial Intelligence Tools
We rely on an artificial intelligence tool to match the information from your resume to the relevant Celonis job descriptions. This processing is limited to the information provided in your resume or in your candidate profile. The tool produces a match score per candidate for a role, suggests preliminary ranking, and provides recommendations.
The tool is only used for support in parts of the job application process, including to facilitate the identification of the relevant Celonis Jobs for candidates and recruiters. All final decisions are made by hiring managers and the Celonis talent acquisition team. Hiring managers and HR specialists use this tool responsibly, are aware of the risk of potential bias, and are equipped to mitigate it.
Please be aware of common job offer scams, impersonators and frauds. Learn more here.
Skills Required
- Solid Java experience, or strong Python experience with willingness to work in Java daily
- Good SQL skills, including joins, aggregations, window functions, and query execution concepts
- Familiarity with at least one analytical or distributed data system, such as Spark, Snowflake, Databricks, Trino, ClickHouse, or StarRocks
- Good testing and debugging habits
- Clear written and spoken communication and willingness to ask questions early
- Exposure to SQL parsers, abstract syntax trees, or query planners
- Open-source contributions, especially to sqlglot or StarRocks
- Experience with gRPC, message queues, or Kubernetes
- Some C++ experience
- Interest in query optimization and database internals
Celonis Compensation & Benefits Highlights
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Parental & Family Support — Family support is described as a core strength, with up to 24 weeks of fully paid leave for primary caregivers and 12 weeks for supporting caregivers from day one, including adoption. Additional offerings such as fertility benefits, adoption assistance, and backup childcare reinforce this focus.
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Leave & Time Off Breadth — Time off is presented as flexible or unlimited in applicable regions, aiming to let employees take leave as needed. This structure is intended to prioritize flexibility alongside hybrid work.
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Equity Value & Accessibility — Full-time employees are eligible for equity grants with annual refreshes and merit-based awards, signaling broad access to ownership. The program is positioned to help employees feel like owners in the company.
Celonis Insights
What We Do
Celonis makes processes work — for people, companies, and the planet. Powered by process mining and AI, the Celonis Process Intelligence Platform integrates process data and business context to create a living digital twin of business operations. We enable thousands of companies worldwide to understand how their business actually runs and, together with their partners, build intelligent solutions that transform and continuously improve the way they operate — unlocking billions in value. Celonis is headquartered in Munich, Germany, and New York City, USA, with more than 20 offices worldwide. # Approximately half of the top 200 companies of the Forbes Global 2000 are Celonis customers. # More than 30% of the Fortune Global 500, and more than 25% of the Fortune 500 are Celonis customers. # To date, Celonis customers have realized more than $8 billion in value, and identified more than $18 billion in value. Celonis has been recognized as: # Germany’s most valuable startup and one of the most valuable in New York City # One of the world’s 50 most valuable private companies # The first German decacorn and one of only 48 in the world # The second largest unicorn in Europe
Why Work With Us
Celonis is a dynamic, fast-paced, and rewarding place to work. Proudly calling ourselves Celonauts, we are innovators and change-makers who challenge the status quo. We tackle challenges together and celebrate our successes as a team in and out of the office. Together, we’re changing the world one process at a time. Care to join us?
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Celonis Teams
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Hybrid Workspace
Employees engage in a combination of remote and on-site work.
Celonis offers a hybrid work policy, blending remote work flexibility with in-office collaboration. Employees enjoy the comfort of working from home while benefiting from teamwork and connection in our modern office spaces.
