Conception, Implementation and Consulting

About Me

Computer science is my passion

Hello, I'm a Full Stack Developer and DevOps Engineer. I have a degree in applied computer science, which I obtained at the cooperative state university in Karlsruhe back in 2016. Over the years I have acquired deep analytical skills. I have very good knowledge in the areas of J2EE, Angular, Kubernetes and SAP Commerce. In my free time I like to deal with the "new hot shit" and I'm generally always looking for new challenges. So far, everything from smart home to server hosting was included. This website also runs in my Kubernetes cluster on my server at home.

Marvin Wichmann

Fullstack Developer & DevOps Engineer

I'm currently not available

Angular

I've been working with angular for more than 3 years now. I have good knowledge in working with SAP Spartacus.

Smart Home

I'm an active home assistant contributor and have been dealing with the topic smart home for the past years.

Kubernetes

I've been working with docker since it was released as an alpha version. I'm a certified Kubernetes application developer and thus the perfect fit for your next project.

SAP Commerce

I'm a certified SAP Commerce Development Professional and am working with SAP Commerce for more than 5 years now.

KNX

I have a solid understanding of KNX development with ETS and am also an active member of XKNX, an open source asynchronous python library used for the communication between a KNX gateway and Home Assistant.

My resume

Today

Nils Jessen Innovationsberatung

Head of Development
Coordination and implementation of the development

Nov. 2021 - Dec. 2021

Unic GmbH

Application Engineer
Software development with SAP Hybris

Oct. 2016 - Dec. 2020

Unic GmbH

Internship
Software development with SAP Hybris

Jul. 2013 - Aug. 2013

Marvin Wichmann IT Beratung

Software-Architect, Software-Developer, Consultant
Software Architecture, Software Development, Consulting

Since Feb. 2018

Unic GmbH

Senior Application Engineer
Software development with SAP Commerce

Jan. 2021 - Oct. 2021

Unic GmbH

Dualer Student
Software development

Oct. 2013 - Sep. 2016

Education

Corporate state university Karlsruhe

Studium

Applied Computer Science

Oct. 2013 - Sep. 2016

KINGS College Bournemouth

English language trip
  • Language trip
  • Cambridge Certificate of Advanced English

Sep. 2017 - Dec. 2017

My projects

July 2022 - today

Heating and ventilation manufacturer

SAP Commerce Developer/Architect

  • Implementation of new features in the frontend and backend for the existing SAP Commerce installation
  • Support during the migration from CCv1 to CCv2
  • Development of new interfaces using RFC with SAP ERP
  • Ensuring operation
  • Setting up Continuous Integration with Gitlab CI
Teamsize

5

Methodik

Scrumban

Tools

CI/CD, Gitlab CI, Atlassian Stack

technology

SAP Commerce, CCv2, Datahub, Webcomponents (Angular), Smartedit

Jan. 2022 - today

Retail Trade

SAP Commerce Cloud PIM Developer & DevOps Engineer

  • Implementation of new features
  • Interface migration of existing SAP Commerce PIM features
  • Update from Hybris 6.7 to SAP Commerce Cloud 2105
  • Go-Live Support for new countries
  • Optimization of the existing continuous integration pipeline
  • Operation of the kubernetes cluster
  • Migration of SAP Commerce to Commercetools
Teamsize

40+

Methodik

Scrum

Tools

CI/CD, Gitlab CI, Atlassian Stack

technology

SAP Commerce (Java, Kotlin), Kubernetes, GKE, Commercetools

Jan. 2022 - today

Data Analytics

Cloud Architect/Developer

  • Architecture of the cloud environment in AWS
  • Implementing the cloud architecture in Terraform and Gitlab CI
  • Support during implementation phase and consulting
Teamsize

10

Methodik

Kanban

Tools

Gitlab CI, Terraform, JIRA

technology

AWS, Python, NodeJS, EKS, API Gateway

Jul. 2019 - Oct. 2021

Heating and ventilation manufacturer

Technical project lead

  • Implementation of new features in the frontend and backend for the existing SAP Commerce installation
  • Design, documentation and implementation of new interfaces with SAP ERP and SAP Datahub
  • Development of new interfaces using RFC with SAP ERP
  • Ensuring operation
  • Setting up Continuous Integration
  • Execution of deployments
Teamsize

6

Methodik

Scrumban

Tools

Elastic Stack, Commerce Cloud Version 1

technology

SAP Commerce, SAP Datahub, Celum, Celum Connect, ERP Integration, RFC

Sep. 2020 - Feb. 2021

Retail Trade

SAP Commerce Cloud Developer & DevOps Engineer

  • Operation of the kubernetes cluster
  • Analysis and implementation of performance improvements
  • Working in a cross functional team with more than 40 people
Teamsize

40+

Methodik

Scrum

Tools

CI/CD, Gitlab CI, Atlassian Stack

technology

SAP Commerce (Java), Kubernetes, GKE

May 2020 - Jul. 2020

Food industry

SAP Commerce Developer

  • Initialisation of an SAP Commerce project with Spartacus in CCv2
  • Development of an MVP with Spartacus 2.0
Teamsize

3

Methodik

Kanban

Tools

SAP Cloud Portal

technology

SAP Commerce 20.05, Spartacus 2.0, Angular

Jan. 2017 - Dec. 2019

Retail

Technical project lead

  • Implementation of an e-commerce shop for the sale of business cards
  • Implementation of a web application to design a business card
  • Implementation of Scrum workshops
  • Hosting of the solution using Ansible and Docker
  • SEO optimisation
  • Implementation of an Elastic Stack for better monitoring
Teamsize

3

Methodik

Scrum

Tools

Atlassian Suite (Jira, Confluence), Nexus, Jenkins

technology

Spring Boot, Angular 2+, Ansible

Mar. 2019 - May 2019

Retail

SAP Commerce Developer / Engineering Manager

  • Carrying out an assessment of the existing SAP Commerce implementation
  • Implementation of a Continuous Delivery Pipeline for the SAP Commerce based PIM solution
Teamsize

2

Methodik

-

Tools

Atlassian Suite (Jira, Confluence), Performance Review

technology

SAP Hybris, SAP Datahub

Apr. 2019 - Jun. 2019

Jewellery / Commerce

Technical project management

  • Introduction of Continuous Delivery for the existing SAP Commerce project
  • Analysis and consulting in case of errors in the SAP Datahub interface
  • Further development and troubleshooting of the PIM system
Teamsize

2

Methodik

Kanban

Tools

Atlassian Suite (Jira, Confluence), Nexus, Jenkins

technology

SAP Datahub, SAP Commerce, ERP Integration, IDOC

Jun. 2018 - Mar. 2019

Mail order business

SAP Commerce Developer

  • Migration of the existing Accelorator Business Logic to Omni Commerce Connect (OCC)
  • Support in setting up an Elastic Stack
  • Implementation of new features in the backend and frontend using the OCC interface
  • Performance analysis of the existing ERP integration
Teamsize

12

Methodik

Scrum

Tools

Atlassian Suite (Jira, Confluence), Elastic Stack, JProfiler

technology

SAP Commerce, OCC, React

Oct. 2016 - May 2018

Retail

SAP Hybris Developer

  • Realisation of new features for the PIM and shop (B2C) platform based on SAP Hybris
  • Carry out on-call service
  • Maintenance and ensuring the operation of the PIM and Shop platform
Teamsize

5 - 8

Methodik

Nexus (Scrum)

Tools

Atlassian Suite (Jira, Confluence), Nexus, Jenkins, Performance Analyse, GIT, SonarQube

technology

SAP Hybris, Java, Spring

Jan. 2016 - May 2016

food retailer

DevOps Engineer

  • Configuration of automated deployments with Docker
  • Maintenance of automated deployments
  • Migration of deployments to a new infrastructure
Teamsize

2 - 5

Methodik

Kanban

Tools

Ansible, Linux, GIT

technology

Docker, Jenkins

Sep. 2015 - Dec. 2015

Retail

DevOps Engineer

  • Maintenance and configuration of the Continuous Integration environment
  • Implementation of a performance plugin for Jenkins to analyse JMeter test results
  • Configuration and analysis of automated performance tests
  • Implementation of new performance tests based on JMeter for the existing Hybris infrastructure
Teamsize

2

Methodik

Kanban

Tools

Atlassian Suite (Jira, Confluence), Postman, GIT

technology

JMeter, Jenkins, Hybris

Jun. 2015 - Aug. 2015

Conglomerate

DevOps Engineer

  • Development of a solution to put the Magento shop into operation using Docker in the Kubernetes infrastructure
Teamsize

2

Methodik

-

Tools

Linux, GIT

technology

Docker, Kubernetes, Magento

My clients

What my customers say about me

 "We engaged Marvin Wichmann IT Consulting to design and implement a complex web application for us and to lead our development project as a Scrum Master. Mr. Wichmann not only answered and implemented all of our technical questions and requests excellently, but also understood the economic goals of the project so well that he was able to take this knowledge into account when having to make technical decisions. He also used this knowledge to regularly give us valuable suggestions beyond the technical scope. Working with Mr. Wichmann was not only very professional and productive, it also worked great on a human level. We look forward to working with him on more projects in the future!"

Nils Jessen Reniva Print GmbH