Björn Wilmsmann - Software Audit and Architecture Consulting: Portal Software

Q: Where is Björn based?

Björn is based in Oberhausen, Germany and prefers 100% remote projects.

Q: What languages does Björn speak?

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

Q: How many years of experience does Björn have?

Björn has at least 15 years of experience. During this time, Björn has worked in at least 25 different roles . The average length of individual experience is 1 year and 7 months . Note that Björn may not have shared all experience and actually has more experience.

Q: What is Björn's latest experience?

Björn's most recent position is Software Audit and Architecture Consulting: Portal Software .

Q: Which industries is Björn most experienced in?

Björn is most experienced in industries like Information Technology , Manufacturing , and Healthcare . Björn also has some experience in Media and Entertainment , Banking and Finance , and Transportation .

Q: Which business areas is Björn most experienced in?

Björn is most experienced in business areas like Information Technology , Product Development , and Quality Assurance . Björn also has some experience in Business Intelligence , Finance , and Accounting .

Q: Which industries has Björn worked in recently?

Björn has recently worked in industries like Information Technology , Media and Entertainment , and Manufacturing .

Q: Which business areas has Björn worked in recently?

Björn has recently worked in business areas like Information Technology , Product Development , and Quality Assurance .

Recommended expert

Oberhausen, Germany

Experience

Jan 2023 - Dec 2023

1 year

Software Audit and Architecture Consulting: Portal Software

I performed a software audit and architecture consultation for an existing portal software that provisions infrastructure for a company that offers virtual reality environments.
Role: Mentoring and Consulting
Technologies used: Java

Jan 2021 - Present

5 years 3 months

Consulting and Mentoring: eCommerce Platform for Order Processing

I am assisting a publishing house that offers online publications through various eCommerce business models in the new development of a platform for processing orders.
Role: Consulting and Mentoring
Technologies used: AWS, Java, Spring Boot, Microservices

Jan 2021 - Dec 2021

1 year

Mentoring and Consulting: Updating Front-end Applications for Document Management

I advised a company that develops document management software on migrating various front-end components to the latest Angular and PrimeNG versions.
I guided the company's developers on approaches and best practices for carrying out this migration.
Role: Mentoring and Consulting
Technologies used: Angular, PrimeNG

Jan 2020 - Dec 2024

5 years

Development and Consulting: HMI for Machine Control

For a mechanical engineering company, I am developing a new HMI for machine control.
Role: Development and Consulting
Technologies used: React, Material-UI, Express, Node.js, JavaScript

Jan 2020 - Dec 2023

4 years

Author: Stratospheric - From Zero to Production with Spring Boot and AWS

Together with two other authors, in mid 2021 I published an eBook titled "Stratospheric - From Zero to Production with Spring Boot and AWS". This eBook is a comprehensive guide to developing and deploying Spring Boot applications in AWS Cloud environments.
Role: Author
Technologies used: AWS, CDK, Spring Boot, Java

Jan 2020 - Dec 2021

2 years

Development and Mentoring: Application for Demand Planning

I supported a billing company in the healthcare industry with the implementation of a demand planning application.
I guided developers in using the new software technologies used to build this application.
Role: Development and Mentoring
Technology selection: Angular, TypeScript, Jasmine, Protractor, Karma, Java, Spring Boot

Jan 2019 - Dec 2019

1 year

Development and Consulting: Configurator for Variant Management (CPQ, PIM)

I supported a provider of variant management software (CPQ, PIM) in developing a rule-based configurator.
Role: Development and Consulting
Technology selection: jQuery, Node.js, SheetJS, jQuery-csv, HTML, CSS

Jan 2018 - Dec 2019

2 years

Design and Development: Software for Construction Site Management

For a company that offers construction site management software, I designed and developed modules for use in a mobile application.
Role: Design and Development
Technology selection: JavaScript, Ext JS, Apache Cordova

Jan 2018 - Dec 2019

2 years

Development and Quality Assurance: Application for Recording and Accounting of Non-Cash Benefits

For an insurance company, I developed a web-based application to record and account for non-cash benefits.
Role: Development and Quality Assurance
Technology selection: Java, Spring, Spring Boot, Hibernate, JUnit, Angular 2, TypeScript, Karma, Jasmine, Protractor, PostgreSQL, Docker, Amazon Web Services

Jan 2018 - Dec 2019

2 years

Mentoring and Consulting: Application for Coordinating Billing Processes

I supported a billing company in the healthcare sector with the implementation of an application for coordinating billing processes.
I guided developers in using the new software technologies used to build this application.
Role: Mentoring and Consulting
Technology selection: Angular, TypeScript, Jasmine, Protractor, Karma, Java, Spring Boot

Jan 2017 - Present

9 years 3 months

Workshops: Spring Boot / Spring Cloud

In collaboration with an IT workshop provider, I deliver workshops on Spring Boot and Spring Cloud.
Role: Trainer and Concept
Selected technologies: Java, Spring, Spring Boot, Spring Cloud

Jan 2017 - Dec 2018

2 years

Concept and Development: Mobile Service App

For a provider of drive technology, I designed and developed a mobile app for field service requests.
Role: Concept and Development
Selected technologies: Ionic, Angular 2, TypeScript, Swift, Xcode

Jan 2017 - Dec 2017

1 year

Development: eCommerce / PIM Solutions

For a provider of eCommerce / Product Information Management (PIM) systems, I implemented microservice-based solutions that extend existing applications and add new functionality.
Role: Development
Selected technologies: Java, Docker, Spring, Spring Boot, Spring Integration, Apache POI, Mockito, REST Assured, RabbitMQ, JavaScript, JSON Schema, Hybris

Jan 2017 - Dec 2017

1 year

Concept and Development: Search Solution for Variant Management (CPQ, PIM)

For a provider of variant management software (CPQ, PIM), I designed and developed a search solution based on Elasticsearch.
Role: Concept and Development
Selected technologies: Java, Elasticsearch, Spring, Spring Boot, JUnit, Mockito, REST Assured

Jan 2017 - Dec 2017

1 year

Mentoring and Consulting: Software for Sales Systems (POS)

I advised a provider of sales system software (POS) in the logistics industry on selecting new front-end technologies and on quality assurance in software development (testing, continuous deployment).
Role: Mentoring, Quality Assurance, and Consulting
Selected technologies: Angular 2, TypeScript, AngularJS, Jasmine, Protractor, Karma

Jan 2016 - Dec 2019

4 years

Mentoring, Consulting and Development: Logistics and Compliance Management Software

I advised a provider of logistics and compliance management software on improving quality assurance processes in software development (testing, database migration, continuous deployment).
Role: Mentoring, quality assurance and development
Technologies used: Java, Spring, JPA, JUnit, Mockito, Flyway, Spring Batch, Angular 2, TypeScript, Cucumber, Docker

Jan 2016 - Dec 2017

2 years

Physician Information Systems

I supported a provider of physician information systems by reviewing and refactoring the software architecture used for developing application modules.
I improved the framework used to develop the client's various products in terms of maintainability and reliability.
Role: Architecture and development
Technologies used: JavaScript, AngularJS, Jasmine, Karma, TypeScript

Jan 2016 - Dec 2016

1 year

Serialization Solution

For a company offering scalable serialization solutions, I developed user-friendly user interfaces and improved the user experience of the existing application.
Role: Design and development
Technologies used: Java, Spring, JPA, Vaadin

Jan 2015 - Dec 2016

2 years

Mentoring and Development: Public Administration Software

At a provider of public administration software, I took part in developing the next product version.
I also trained the developers in various frontend technologies - mainly AngularJS and JavaScript - and in their interaction with Java backend applications.
Role: Mentoring and development
Technologies used: Java, Spring, Hibernate, JavaScript, AngularJS, Lucene, Solr

Jan 2015 - Dec 2015

1 year

ERP System for eCommerce Applications

For a US-based eCommerce company in the apparel industry, I developed a web-based ERP solution that manages and processes goods inflows and outflows, inventory, and stock levels for different products, locations, and sales channels.
Role: Architecture, development and design
Technologies used: Java, Spring Web MVC, Spring Boot, JavaScript, AngularJS

Jan 2014 - Present

12 years 3 months

ZenQuery

ZenQuery is an Enterprise Backend as a Service.
ZenQuery provides you with an instant REST API for your SQL queries. Anything that can be expressed by SELECT * FROM ... ZenQuery turns into a conveniently accessible API.
Role: Entrepreneur, Developer, Product Designer
Selected technologies: Java, Spring Web MVC, JavaScript, AngularJS, PostgreSQL, various database integrations, Heroku

Jan 2014 - Dec 2017

4 years

Controlling Application for Receivables and Liabilities Analysis

For a well-known consulting firm in the controlling industry, I developed a web application that enables working capital and cash flow analyses.
The application visualizes results using various dynamically generated charts and allows flexible Excel data import and export.
Role: development and design
Selected technologies: Java, Spring Web MVC, JavaScript, AngularJS, NVD3, D3.js, Chart.js, Excel interfaces (import/export), PostgreSQL

Jan 2014 - Dec 2015

2 years

Freshcard

Freshcard is a digital business card distribution platform. Freshcard allows you to easily connect and exchange contact information with business contacts.
The web application allows you to manage your contact details and create your individual business card layout in the browser (using HTML5 and SVG).
The accompanying iPhone app lets you connect with people right when you meet them.
Role: Entrepreneur, CTO, Developer, Product Designer. Apart from product design and development, my task as CTO was to coordinate a team of developers, designers, and service providers to ensure that new product versions were delivered on time and with the required quality.
Selected technologies: Java, Spring Web MVC, JavaScript, AngularJS, Fabric.js, SVG, PostgreSQL, iOS, Swift, Multipeer Connectivity, vCard, Heroku

Jan 2013 - Dec 2014

2 years

MemoEasy

No-shows are a major problem for many businesses. MemoEasy solves this problem by letting businesses manage their appointments online and sending customers a reminder by SMS or email before an appointment.
Role: Entrepreneur, CTO, Developer, Designer
Selected technologies: Ruby on Rails, PostgreSQL, Twilio, Heroku

Jan 2011 - Dec 2015

5 years

Applications for Consumer and Corporate Loan Application and Processing

For an international bank, I worked in a team of six developers to build various enterprise web applications that let merchants and end customers apply for loans.
These applications also handle further processing of the applications and customer interactions.
Through a service-oriented architecture, numerous backend systems are connected, e.g. core banking systems and risk assessment.
Role: development and design
Selected technologies: Java, Spring, Hibernate, SOAP, WebSphere, JMS, socket services, Oracle Database, Lucene

Industry Experience

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

Experienced in Information Technology, Manufacturing, Healthcare, Media and Entertainment, Banking and Finance, and Transportation.

Information Technology

Manufacturing

Healthcare

Media and Entertainment

Banking and Finance

Transportation

Business Area Experience

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

Experienced in Information Technology, Product Development, Quality Assurance, Business Intelligence, Finance, and Accounting.

Information Technology

Product Development

Quality Assurance

Business Intelligence

Finance

Accounting

Languages

German

Advanced

English

Advanced

Statistics

Experience

Total positions 25

Experience in Information Technology 13 y

Avg length 2 y 11 m

Longest experience 12 y 2 m

Expertise

Recent roles Software Audit and Architecture Consulting: Portal Software, Consulting and Mentoring: eCommerce Platform for Order Processing, Mentoring and Consulting: Updating Front-end Applications for Document Management

Main industries Information Technology, Manufacturing, Healthcare

Main business areas Information Technology, Product Development, Quality Assurance

Profile

Created

July 2025

Last Update

December 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Björn based?

Björn is based in Oberhausen, Germany and prefers 100% remote projects.

What languages does Björn speak?

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

How many years of experience does Björn have?

Björn has at least 15 years of experience. During this time, Björn has worked in at least 25 different roles. The average length of individual experience is 1 year and 7 months. Note that Björn may not have shared all experience and actually has more experience.

What roles would Björn be best suited for?

Based on recent experience, Björn would be well-suited for roles such as: Software Audit and Architecture Consulting: Portal Software, Consulting and Mentoring: eCommerce Platform for Order Processing, Mentoring and Consulting: Updating Front-end Applications for Document Management.

What is Björn's latest experience?

Björn's most recent position is Software Audit and Architecture Consulting: Portal Software.

Which industries is Björn most experienced in?

Björn is most experienced in industries like Information Technology, Manufacturing, and Healthcare. Björn also has some experience in Media and Entertainment, Banking and Finance, and Transportation.

Which business areas is Björn most experienced in?

Björn is most experienced in business areas like Information Technology, Product Development, and Quality Assurance. Björn also has some experience in Business Intelligence, Finance, and Accounting.

Which industries has Björn worked in recently?

Björn has recently worked in industries like Information Technology, Media and Entertainment, and Manufacturing.

Which business areas has Björn worked in recently?

Björn has recently worked in business areas like Information Technology, Product Development, and Quality Assurance.

What is the availability of Björn?

Björn is immediately available part-time for suitable projects.

What is the rate of Björn?

Björn's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.