Michael Seliger - Solution Architect for E-Commerce

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Jena, Germany

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Experience

Feb 2026 - Present

9 months

Technical Lead, Development and Requirements Gathering

Decoupled frontend for a website in the pharmacy sector

Ongoing support and further development.

Jan 2026 - Present

10 months

Technical Lead, Development and Requirements Gathering

React Native app for public transport and city exploration

Ongoing support and further development of the app.

Nov 2025 - Jan 2026

3 months

Technical Lead, Development

Decoupled frontend for a website in the pharmacy sector

Implementation based on Figma design
Introduction of AstroJS as the frontend framework
Coordination and requirements for the backend.

Sep 2025 - Present

1 year 2 months

Solution Architect & Full-Stack-Developer

Freelancer

Supporting technology-driven companies in the DACH region with the successful implementation of complex digital projects as a freelance Solution Architect, Full-Stack-Developer, or Engineering Manager.

Sep 2025 - Dec 2025

4 months

Technical Lead, Development

React Native app for public transport and city exploration

Taking over and rescuing an Expo app project
Implementation based on Figma design for iOS and Android
Coordination and clarification of backend requirements
Creating the deployment and rollout, as well as managing the app stores.

Jun 2024 - Feb 2025

9 months

Jena, Germany

Solution Architect

dotSource SE

Advising on solution concepts and architectures
Gathering cross-system requirements
Implementing software projects
Mentoring and coaching colleagues
Conducting pitch processes and workshops
Driving innovation.

Mar 2024 - Aug 2024

6 months

Technical Expert and Troubleshooter

A large European online retailer for lighting

Bringing together multiple development teams and their objectives.

Jan 2024 - Mar 2025

1 year 3 months

Technical Lead, Development and Requirements Gathering

A software provider for financial management and performance solutions

Introducing Adobe Experience Manager and Adobe Analytics
Structuring the content pipeline and ensuring future viability
Taking into account a state-of-the-art AEM frontend with clean CI pipelines.

Jan 2023 - Jan 2025

2 years 1 month

Technical Lead, Development and Requirements Gathering

A leading manufacturer of fastening technology and screws

Introducing Adobe Experience Manager, Adobe Analytics and Adobe Commerce Cloud
Solution design for data exchange with PIM.

Jan 2023 - Dec 2024

2 years

Technical Lead, Development and Requirements Gathering

A company in the field of solar systems and renewable energy

Migrating to Craft CMS with a modern frontend
Building a lead funnel and integrating Salesforce.

Jan 2022 - Dec 2024

3 years

Technical Lead, Development and Requirements Gathering

A premium manufacturer of cookware and kitchen accessories

Implementation of Adobe Experience Manager, Adobe Analytics and Adobe Commerce Cloud
Solution design involving data exchange with PIM and other surrounding systems
Preparation and execution of worldwide rollouts, including planning for the different market requirements.

Jan 2021 - May 2024

3 years 5 months

Jena, Germany

Software Development Team Lead

dotSource SE

Leadership of a 17-member team
Optimization of team KPIs
Coaching team members
Development of new service areas
Focus on CMS projects with Adobe Experience Manager
Conducting pitch processes and workshops
Escalation handling.

Jan 2021 - Dec 2021

1 year

Solution Architect

An international provider of technical components and engineering solutions

Workshops
Requirements gathering and specifications.

Jan 2020 - Dec 2020

1 year

Solution Architect

An e-commerce specialist for office furniture

Workshop on best practices and state-of-the-art frontends in the Magento environment.

Jan 2020 - Dec 2020

1 year

Technical Lead, Development and Requirements Gathering

A leading provider of frozen food through direct sales

Taking over WordPress instances.

Mar 2019 - Mar 2019

1 month

Focus on requirements gathering, development and technical leadership

A service provider in the online marketing sector

Conducting workshops
Creating specifications.

Jan 2015 - Dec 2017

3 years

Technical Lead and Requirements Gathering

A well-known manufacturer of writing instruments

Jan 2014 - Dec 2023

10 years

Technical Lead, Development and Requirements Gathering

E-commerce platforms for gifts and perfumes

Managing several projects
Migration to the Magento e-commerce system
Focus on microservices development and chatbot implementation (2020 – 2023)
Migration of the resulting platforms (July 2014 – 2016) to support company growth.

Jan 2014 - Dec 2014

1 year

Development

A manufacturer and online printing service provider for advertising technology and textiles

Further development of the product configurator.

Nov 2013 - May 2014

7 months

Technical Lead, Development and Requirements Gathering

A technical wholesaler for tools and occupational safety equipment

Implementation of Magento Community
Integration with ERP system (AS400)
Performance optimization.

Oct 2013 - Dec 2020

7 years 3 months

Jena, Germany

Consultant

dotSource GmbH

Planning and implementation of software projects (focus on e-commerce and CMS)
Requirements gathering
Supporting pitch processes and conducting workshops.

Jan 2013 - Dec 2013

1 year

Development

A large educational publisher and media provider

Jan 2012 - Dec 2012

1 year

Requirements Gathering

A manufacturer of exclusive golf clothing

Jul 2010 - Sep 2010

3 months

Jena, Germany

Software Development Intern

dotSource GmbH

Quality assurance
Implementation of PHP projects.

Jan 2007 - Dec 2008

2 years

Hermsdorf, Germany

Civil Service Worker

Arbeiter-Samariter Bund KV SHK e.V.

Industry experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Retail, Cosmetics, Manufacturing, Professional Services, and Government and Administration.

Information Technology

Retail

Cosmetics

Manufacturing

Professional Services

Government and Administration

Business area experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Product Development, Project Management, and Marketing.

Information Technology

Product Development

Project Management

Marketing

Summary

Solution-oriented software architect and team leader with over 16 years of experience in developing E-Commerce and CMS solutions, performance optimization, and leading development teams.

Skills

Adobe Experience Cloud (Aem, Analytics, Target, Assets, Real-Time-Cdp, Eds)
Adobe I/O
Craft Cms
Microservices With Nodejs
Kubernetes In Google Cloud And Aws
Infrastructure With Terraform
E-Commerce With Adobe Commerce
Event-Based Data Exchange With Google Pub/Sub
App Development With React Native
Working With Docker
Setting Up Ci Pipelines In Gitlab
Setting Up Ci Pipelines In Travisci
Setting Up Ci Pipelines In Jenkins
Decoupled Frontends With Nextjs/React Or Nuxtjs/Vuejs
Experience With Netlify
Experience With Cloudflare
Serverless Methodologies

Languages

German

Native

English

Advanced

Education

Oct 2010 - Sep 2013

Duale Hochschule Gera-Eisenach

Bachelor of Science, Business Informatics with practical partner dotSource GmbH. · Business Informatics · Gera, Germany

Oct 2008 - Jun 2010

Friedrich Schiller Universität

Computer Science · Jena, Germany

Oct 1995 - Jun 2007

Johann-Heinrich- Pestalozzi Gymnasium

General higher education entrance qualification · Stadtroda, Germany

Certifications & licenses

AEM Sites Business Practitioner Expert

Adobe

Projektmanagement Zertifikat

Friedrich-Schiller-Universität Jena

Magento Certified Developer Plus

Magento, Inc.

Statistics

Experience

Total positions 25

Experience in Information Technology 12.5 y

Avg length 1 y 9 m

Longest experience 9 y 11 m

Global experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Technical Lead, Development and Requirements Gathering, Technical Lead, Development, Solution Architect & Full-Stack-Developer

Main industries Information Technology, Retail, Cosmetics

Main business areas Information Technology, Product Development, Project Management

Qualifications

Highest degree Doctorate

Certifications earned 3

Profile

Member since

May 2026

Last update

October 2026

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Frequently asked questions

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Michael is based in Jena, Germany and can operate in on-site, hybrid, and remote work models.

Michael speaks the following languages: German (Native), English (Advanced).

Michael has at least 16 years of experience. During this time, Michael has worked in at least 13 different roles and for 21 different companies. The average length of individual experience is 1 year and 8 months. Note that Michael may not have shared all experience and actually has more experience.

Based on recent experience, Michael would be well-suited for roles such as: Technical Lead, Development and Requirements Gathering, Technical Lead, Development, Solution Architect & Full-Stack-Developer.

Michael's most recent position is Technical Lead, Development and Requirements Gathering at Decoupled frontend for a website in the pharmacy sector.

In recent years, Michael has worked for Decoupled frontend for a website in the pharmacy sector, React Native app for public transport and city exploration, Freelancer, dotSource SE, and A large European online retailer for lighting.

Michael is most experienced in industries like Information Technology, Retail, and Cosmetics. Michael also has some experience in Manufacturing, Professional Services, and Government and Administration.

Michael is most experienced in business areas like Product Development, Information Technology, and Project Management. Michael also has some experience in Marketing and Quality Assurance.

Michael has recently worked in industries like Retail, Cosmetics, and Information Technology.

Michael has recently worked in business areas like Information Technology, Product Development, and Project Management.

Michael holds a Doctorate in Computer Science from Friedrich Schiller Universität and a Bachelor in Business Informatics from Duale Hochschule Gera-Eisenach.

Michael has 3 certificates. These include: AEM Sites Business Practitioner Expert, Projektmanagement Zertifikat, and Magento Certified Developer Plus.

Michael is immediately available full-time for suitable projects.

Daily rate distribution

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<€400 €400-800 €800-1200 €1200+

The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

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Daily rate avg. 870 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

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Median rate 840 €

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 16 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.