Jan H.-Technical Co-Founder
Check rate
Experience
Technical Co-Founder
Telemarie UG
- Technical leadership & SW architecture: Conducted trade-off analyses for technology stacks and led the design and implementation of the software architecture, including mobile and backend solutions. Facilitated Event Storming workshops for DDD and SW architecture.
- Strategic direction & organizational development: Played a key role in defining the strategic direction of the product and organization, exploring new forms such as ownership responsibility.
- Lean Startup & Agile development: Introduced Lean and Agile principles, implemented Lean prototypes, and ensured compliance with Lean Startup processes, iteratively moving from Product/Solution-Fit to Product/Market-Fit.
- Team building & collaboration: Facilitated workshops, retrospectives, and futurespectives to collaboratively develop tactics and strategies.
- Technologies: Flutter, JS/TS, React, Google Cloud, Firebase, Android, iOS.
- Organizational methods: Lean startup, lean canvas, lean agile, event storming, retrospectives.
Delivery Lead
Zalon by Zalando
- Product launch & SW development: Implemented with Scala Play Framework, Postgres, and AWS. Extended the architecture to adapt to evolving business requirements while incorporating a microservices strategy.
- SW development leadership: Led the delivery teams from 0 to ~50 Mio. € in revenue, collaborated with the business on technically critical decisions, and introduced cross-functional teams.
- Technical leadership & architecture: Responsible for the overall application and system architecture, including microservice strategy, AWS, Kubernetes, and Docker.
- Technologies: Scala, Akka, Scalaz, Scalatest, Play2, Postgres, AWS (EC2, Lambda, RDS, Route53, CloudFront, S3), Kubernetes, Grafana, NewRelic/AppDynamics.
- Organizational methods: Adopted and promoted Lean and Agile methodologies, facilitated event storming workshops for clear goal alignment.
Technical Co-Founder
Get2play GmbH
- Technical leadership & SW architecture: Responsible for implementing the platform and leading its development.
- Strategic direction & organizational innovation: Played a key role in defining the strategic direction of the product and organization.
- Lean Startup & Agile SW development: Supported the introduction of Lean and Agile principles, implemented Lean prototypes, and ensured compliance with Lean Startup processes, thereby iterating from Product/Solution-Fit to Product/Market-Fit.
- Technologies: Play2, Scala, JavaScript, WebAudio, jQuery, Heroku, AWS (EC2, S3, Media Services), Mixpanel, MongoDB.
- Organizational methods: Lean startup, lean canvas, event storming, retrospectives.
Software Developer
Parship
- Software development & architecture: Developed new features for the online matchmaking platform and the new mobile web application.
- Refactored legacy modules and migrated them to an object-oriented (OO) architecture to improve performance and maintainability.
- Build & deployment automation: Implemented build and configuration management tools to enable Continuous Deployment and improve the development lifecycle.
- Team collaboration & code reviews: Worked closely with team members to ensure code quality and conducted peer reviews to maintain high development standards.
- Technologies: Java, Microservices.
- Organizational methods: Agile development, Continuous Integration/Continuous Deployment, Code reviews.
Software Developer
Edict E-Gaming
- Implemented an admin and back-office client for an online casino application.
Freelance Consultant and Developer
Heitcon3 and creations media
- Software development and consulting.
Senior Development Consultant
Steria Mummert Consulting AG
- CRM web application for a large telecommunications provider: architecture, design, implementation.
- Local broadcasting company: team leadership and development.
Technology Consultant
Accenture Technology Solutions GmbH
- Accounting software for a large German telecommunications provider: team leadership, architecture, design, development.
Research Assistant
University of Hamburg
- Implementation of an autonomous agent as part of an AI research project.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Fashion, Retail, Telecommunication, Education, and Media and Entertainment.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, Strategy, Project Management, and Research and Development.
Summary
I am a passionate software engineer, manager, and architect with 20 years of experience in projects and companies of all sizes. My strengths include excellent communication skills, strong analytical abilities, and facilitation skills. I greatly enjoy applying my knowledge of agile and lean methods to sustainably increase the company's value creation in close collaboration with management and teams. I am known for my creative, unconventional way of thinking, my strategic vision, and my consistent prioritization.
In leadership positions, I advocate concepts such as Lean Agile, a strong focus on value creation, Servant Leadership, self-organization, and Cross-Functional Teams.
Skills
Software Development Methods And Philosophies
- Agile Methods, Lean Startup
- Requirements Analysis (E.G. User Story Mapping)
- Strategic And Tactical Ddd (E.G. Event Storming), Clean Architecture
- Clean Code, Solid/Cupid, Tdd, Devops
- Oop, Fp, Event Sourcing, Cqrs
- Mob Programming, Pair Programming
Technologies
- Flutter, Kotlin, Scala, Java, Js/Ts
- Aws, Google Cloud
- Postgres, Mysql, Firebase, Mongo
- Docker
Languages
Education
Universität Hamburg
Diplom-Informatiker · Computer Science, minor in Business Administration · Hamburg, Germany · 1.4
Technisches Gymnasium G16
Abitur · Hamburg, Germany
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Jan is based in Berlin, Germany.
Jan speaks the following languages: German (Native), English (Advanced).
Jan has at least 24 years of experience. During this time, Jan has worked in at least 7 different roles and for 9 different companies. The average length of individual experience is 3 years and 8 months. Note that Jan may not have shared all experience and actually has more experience.
Based on recent experience, Jan would be well-suited for roles such as: Technical Co-Founder, Delivery Lead, Software Developer.
Jan's most recent position is Technical Co-Founder at Telemarie UG.
In recent years, Jan has worked for Telemarie UG.
Jan is most experienced in industries like Information Technology, Fashion, and Retail. Jan also has some experience in Telecommunication, Education, and Media and Entertainment.
Jan is most experienced in business areas like Information Technology, Product Development, and Strategy. Jan also has some experience in Project Management and Research and Development.
Jan has recently worked in industries like Information Technology.
Jan has recently worked in business areas like Information Technology, Product Development, and Strategy.
Jan holds a Master in Computer Science, minor in Business Administration from Universität Hamburg.
The availability of Jan needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 27 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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