Recommended expert

Jonas Taulien

IT Consultant

Jonas Taulien
Neu Wulmstorf, Germany

Experience

Nov 2024 - Sep 2025
11 months

IT Consultant

Bechtle AG

  • Prequalified 200 demands within five weeks on the multi-cloud-commerce platform bechtle-clouds.com with three external consultants
  • Served a dual role as project manager and requirements engineer for various enhancements
  • Domain topics: reimplementation of Entra ID Sync, improvement of support processes, optimizations in the product catalog
  • Demand and project management in ServiceNow
  • Refinement of epics and stories with internal teams and external service providers
  • Management of the external international service provider
May 2022 - Jun 2024
2 years 2 months

Product Owner & PO-Support

Yello Strom GmbH

  • Interim product owner for a 13-member international web development team for the e-commerce website yello.de; after onboarding the new PO, remained as PO support for over a year
  • Scrum product ownership in the context of SAFe
  • Created a new product vision and broke it down into product and sprint goals
  • Hired and onboarded designers, developers, testers, and the new product owner
  • Advised on conversion rate optimization in close collaboration with designers
  • Transformed the team from a “website team” to a “platform team” providing a content and sales platform for other teams
  • Restructured the headless CMS Contentful
  • Prioritized the backlog
  • Pre-refined product backlog items based on stakeholder agreements
  • Conducted refinements with designers and developers
  • Created various concepts, including integration of PAYBACK
  • Coached employees in Contentful and other backend systems
Nov 2020 - May 2022
1 year 7 months

Software Architect

Mercedes-Benz Tech Innovation GmbH

  • Conducted requirements engineering workshops with various stakeholders
  • Created and refined product backlog items
  • Advised the product owner on prioritization
  • Designed a microservice architecture based on ActiveMQ Artemis
  • Coached other developers in reactive programming with Vert.x
  • Performed frontend development using Angular
  • Performed backend development using Java/Vert.x
  • Conducted performance and load testing
Apr 2018 - Jun 2019
1 year 3 months

Proxy Product Owner & Technical Lead

Tallence AG

  • Acted as proxy product owner for an 11-member Scrum team at the IT consultancy Tallence
  • Collaborated with the client to develop, publish, and maintain an innovative finance app for iOS and Android
  • Developed the product vision together with the client
  • Designed the app jointly with the client and designers
  • Analyzed and integrated the finAPI account information service
  • Created, prioritized, and refined product backlog items
  • Developed the backend-for-frontend for the apps using Java/Vert.x
  • Deployed the backend on the client’s OpenShift environment

Summary

Hey! I’m Jonas and I’m a freelance Product Owner for web, API, backend, and app development teams.

I work best in a team with talented designers and developers. I act as a multiplier, making sure everyone has all the information they need to work at their best. My technical and analytical skills lead to well-thought-out concepts and efficient refinements. By understanding both worlds, I bridge business and IT.

I’m a systems penetrator. I have a quick grasp. By asking questions, reviewing documents and source code, and creating various diagrams, I develop a deep understanding of the existing or upcoming system. In my past as a developer and software architect, I’ve learned many system designs and technologies, so I can quickly find my way in a new system landscape.

I’m a translator. I don’t just turn needs into requirements and requirements into software, I also translate between people and teams in the company. I understand business and IT, and I bridge both worlds.

I’m a moderator. With my deep understanding of the system and its issues, I quickly spot when people talk past each other and help move meetings forward productively.

I’m a multiplier. In all past projects, I was the go-to person for business units, designers, and developers. I advise related business units and other stakeholders on finding the most effective solution. I help designers by making technical possibilities and constraints transparent so they know all the boundaries. I also give constructive feedback backed by studies or past experiences. Developers come to me to clarify functional aspects, but also to get tips on the overall system’s functionality or the best person to talk to. Often they show me source code because they know I understand it.

I’m a trainer. I don’t hoard the knowledge I gain—I pass it on. In every project, there always comes a point where I deliver knowledge about the product, the technical systems, or a technology in the form of training sessions.

I’m an architect. Supported by my understanding of the entire system, I create well-thought-out concepts for implementing the needed or desired functionality. I try to consider all possible edge cases and error scenarios so potential complexities are identified or made transparent early. I involve all parties early so there are no surprises.

I’m a quality assurer. Quality is very important to me. I don’t like bad software. That’s why I make sure there’s a working quality management process in the team.

Skills

Product & Agile

  • Product Ownership
  • Scrum
  • Agile
  • Lean
  • Requirements Engineering
  • Usability Engineering
  • Ux Design
  • Leadership
  • Coaching
  • Solution Architecture
  • Bpmn 2.0
  • Software As A Service
  • Ui Design
  • Consulting
  • Project Management
  • Stakeholder Management
  • Test Strategy
  • E2e Testing
  • Business Process Analysis
  • Business Process Modeling
  • Prototyping
  • Mvp
  • Conversion Rate Optimization
  • A/b Testing
  • Tracking
  • E-commerce
  • Quality Assurance
  • Product Documentation
  • Safe

Technical

  • Reactive Systems
  • Software Architecture
  • Microservices
  • Full-stack Software Development
  • Cloud
  • Asynchronous Programming
  • Functional Programming
  • Object-oriented Programming
  • Backend Development
  • Frontend Development
  • Test Automation
  • Micro Frontends
  • Code Review
  • Pair Programming
  • It Infrastructure
  • App Development
  • Api Development
  • Web Development
  • Banking Apis (Tink, Finapi, Fints)
  • Web Performance
  • Uml

Tools – Project Management & Design

  • Trello
  • Confluence
  • Jira
  • Word
  • Powerpoint
  • Excel
  • Adobe Xd
  • Figma
  • Google Analytics
  • Azure Devops
  • Contentful
  • Slack
  • Microsoft Teams
  • Servicenow

Tools – Programming & Markup Languages & Libraries

  • Java
  • Vert.x
  • Shopify
  • Javascript
  • Typescript
  • Sql
  • Angular
  • Bash
  • Php
  • Webdriver (Selenium)
  • Android
  • Gradle
  • Junit
  • Google Guice
  • Rxjava
  • .Net
  • C#
  • Jquery
  • Angularjs
  • Html
  • Css
  • Scss
  • Web Components
  • Jasmine
  • Testcafe
  • React
  • Maven
  • Jooq
  • Spring Boot
  • Lombock
  • Hibernate
  • Zend Framework
  • Haskell
  • Mockito
  • Jdbc
  • Json
  • Xml

Tools – Infrastructure

  • Docker
  • Kubernetes
  • Gitlab
  • Aws
  • Linux
  • Openshift
  • Git
  • Apache
  • Activemq Artemis
  • Postgresql
  • Oracle Db
  • Microsoft Sql
  • Amqp
  • Jenkins
  • Openapi
  • Concourse
  • Flyway
  • Ansible
  • Redis
  • Terraform
  • Browserstack

Languages

German
Native
English
Advanced

Education

Oct 2014 - Mar 2018

Fachhochschule Wedel + JobLeads GmbH

Dual Bachelor's Degree · General Computer Science · Wedel, Germany · Avg. 1.6

Aug 2012 - Jun 2014

Gymnasium Rahlstedt

High School Diploma (Abitur) · Physics and Computer Science · Hamburg, Germany · Avg. 1.8

Certifications & licenses

Professional Scrum Product Owner II (PSPO II)

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