About Andrej
🤝 I work with your software team to continuously deliver real user value, build quality products through thoughtful engineering, and keep growing your team's skills.
😊 Outcomes over output; Let us deliver user-centered software sooner.
💬 Get in touch.
German
Native or bilingual
English
Fluent
Can work on-site
Köln (up to 50km)
Experience
- FreelanceFreelance Software EngineerJanuary 2026 - Today (6 months)I work with your software team to continuously deliver real user value, build quality products through thoughtful engineering, and keep growing your team's skills.
- lise GmbHLead Software EngineerOctober 2018 - October 2025 (7 years)Cologne, NW, Germany• Lead Software Engineer in several projects, delivering value to users and establishing XP mindset & practices within the teams; e.g. Continuous Delivery, TDD, and Pair Programming• Releasing and operating production, cloud-native software systems• Enabling software teams company-wide to deliver value to customers daily and grow their skills• Mentoring individuals and teams in software quality, design, and extreme programming (XP)• Preparation and execution of SE workshops
- Gebr. Willach GmbHSoftware EngineerApril 2018 - September 2018 (5 months)Ruppichteroth, NW, Germany• Development of an API for 3rd party systems• In-house development of support tools• Quality assurance
Recommendations
Be the first to recommend Andrej
Help this freelancer shine by sharing your experience working together.
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- M.Sc.RWTH, Informatik (Bachelor / Master)RWTH Aachen University2012M.Sc.RWTH, Informatik (Bachelor / Master)
- Informationstechnischer AssistentHeinrich-Hertz-Berufskolleg der Stadt Bonn2006Informationstechnischer Assistent