Anton Von Weltzien
Software Engineer at Camunda
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolAnton Von Weltzien is a Berlin-based software engineer with 10 years of hands-on experience building backend systems and improving REST APIs, currently advancing workflow automation at Camunda. He progressed from working student and pre-sales roles into engineering, blending deep product knowledge with practical implementation—particularly in the Camunda BPM platform where he fixed date-conversion bugs, tightened BPMN error handling, and enhanced identity-related REST endpoints. Trained at the Hasso Plattner Institute in IT-Systems Engineering with a Design Thinking background, he brings a human-centered approach to robust, maintainable code. Equally comfortable in customer-facing pre-sales engineering and core engine development, he leverages that crossover to deliver developer-friendly APIs and clearer error semantics.
11 years of coding experience
6 years of employment as a software developer
Master of Science - MS IT-Systems Engineering, Master of Science - MS IT-Systems Engineering at Hasso Plattner Institute
Github Skills (13)
javas10
api-rest10
rest-api10
camunda10
engine10
api10
rest10
bpmn10
restful-api10
java10
api-design9
apim9
postgresql3
Programming languages (10)
Github contributions (5)
camunda/camunda-bpm-platform
Oct 2020 - Oct 2021
Camunda 7 CE is End of Life (EoL). Please check out Camunda 8 instead (https://github.com/camunda/camunda) or read about Camunda 7 Enterprise End of Life (https://camunda.com/blog/2025/02/camunda-7-enterprise-end-of-life-extension/) – Camunda 7 CE was a flexible framework for workflow and decision automation using BPMN and DMN.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:69 reviews, 39 commits, 79 PRs in 1 year
Contributions summary:Anton primarily contributed to the Camunda BPM platform by fixing bugs related to date conversions in the REST engine, improving error handling for BPMN errors in task handling, and addressing misleading error messages during process instance deletion. They made changes to the engine-rest, engine, and engine-rest-openapi modules, indicating a focus on REST API improvements and core engine functionality. Furthermore, the user worked on enhancements related to group and tenant endpoints, showcasing involvement in identity management and REST API development.
automationbpmncamundadmncamunda-bpm-platform
bptlab/active-chor-js
Nov 2019 - Dec 2019
Extension of chor-js for blockchain-based active choreographies
Contributions:21 commits, 5 PRs, 8 pushes in 28 days
blockchainjs
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