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 (Native), English (Native), Dutch (Advanced), Spanish (Intermediate), French (Intermediate) .

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

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Experience

Jan 2023 - Dec 2023

1 year

Software Audit and Architecture Consulting: Portal Software

I conducted a software audit and architecture consulting for an existing portal software for infrastructure provisioning at a company that offers virtual reality environments.
Role: Mentoring and consulting
Selection of technologies used: Java

Jan 2021 - Present

5 years 4 months

Consulting and Mentoring: eCommerce Platform for Order Processing

I supported a publishing house that offers online publications through various eCommerce business models in the new development of a platform for order processing.
Role: Consulting and mentoring
Selection of 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 in approaches and best practices for carrying out this migration.
Role: Mentoring and consulting
Selection of technologies used: Angular, PrimeNG

Jan 2020 - Dec 2024

5 years

Development and Consulting: HMI for Machine Control

I am developing a new HMI for machine control for a mechanical engineering company.
Role: Development and consulting
Selection of 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, I published an ebook titled “Stratospheric - From Zero to Production with Spring Boot and AWS” in mid-2021. This ebook is a comprehensive guide for developing and deploying Spring Boot applications in AWS Cloud environments.
Role: Author
Selection of technologies used: AWS, CDK, Spring Boot, Java

Jan 2020 - Dec 2021

2 years

Development and Mentoring: Demand Planning Application

I supported a billing company in the healthcare sector in implementing a demand planning application.
I guided developers in using new software technologies used to implement this application.
Role: Development and Mentoring
Selected technologies: 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
Selected technologies: jQuery, Node.js, SheetJS, jQuery-csv, HTML, CSS

Jan 2018 - Dec 2019

2 years

Design and Development: Construction Site Management Software

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

Jan 2018 - Dec 2019

2 years

Development and Quality Assurance: Application for Recording and Accounting of Benefits in Kind

I developed a web-based application for recording and accounting of benefits in kind for an insurance company.
Role: Development and Quality Assurance
Selected technologies: 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 Coordination of Billing Processes

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

Jan 2017 - Present

9 years 4 months

Workshops: Spring Boot / Spring Cloud

In collaboration with an IT workshop provider, I conduct workshops on Spring Boot and Spring Cloud.
Role: trainer and design
Selection of technologies: Java, Spring, Spring Boot, Spring Cloud

Jan 2017 - Dec 2018

2 years

Design and Development: Mobile Service App

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

Jan 2017 - Dec 2017

1 year

Development: eCommerce / PIM Solutions

For an eCommerce / Product Information Management (PIM) system provider, I implemented microservice-based solutions that extend existing applications and enrich them with new functionality.
Role: development
Selection of technologies: Java, Docker, Spring, Spring Boot, Spring Integration, Apache POI, Mockito, REST Assured, RabbitMQ, JavaScript, JSON Schema, Hybris

Jan 2017 - Dec 2017

1 year

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

For a variant management software provider (CPQ, PIM), I designed and developed a search solution based on Elasticsearch.
Role: design and development
Selection of 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 quality assurance in software development (testing, continuous deployment).
Role: mentoring, quality assurance and consulting
Selection of technologies: Angular 2, TypeScript, AngularJS, Jasmine, Protractor, Karma

Jan 2016 - Dec 2019

4 years

Mentoring, Consulting and Development: Software for Logistics and Compliance Management

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
Selected technologies: Java, Spring, JPA, JUnit, Mockito, Flyway, Spring Batch, Angular 2, TypeScript, Cucumber, Docker

Jan 2016 - Dec 2017

2 years

Medical Information Systems

I supported a provider of medical information systems in reviewing and refactoring the software architecture they 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
Selected technologies: JavaScript, AngularJS, Jasmine, Karma, TypeScript

Jan 2016 - Dec 2016

1 year

Serialization Solution

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

Jan 2015 - Dec 2016

2 years

Mentoring and Development: Software for Public Administration

At a provider of public administration software, I was involved in developing the next product version.
At the same time, I trained the on-site developers in various frontend technologies – mainly AngularJS and JavaScript – and their integration with Java backend applications.
Role: mentoring and development
Selected technologies: 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 for managing and processing incoming and outgoing goods, inventory, and individual stock levels across different products, locations, and sales channels.
Role: architecture, development and design
Selected technologies: Java, Spring Web MVC, Spring Boot, JavaScript, AngularJS

Jan 2014 - Present

12 years 4 months

ZenQuery

ZenQuery is an enterprise Backend as a Service.
ZenQuery gives you an instant REST API for your SQL queries. Anything you can express with 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 connectors, Heroku

Jan 2014 - Dec 2017

4 years

Controlling Application for Analysis of Receivables and Liabilities

For a renowned consulting firm in the controlling field, 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 lets you easily connect and exchange contact information with business contacts.
The web application lets you 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 met quality standards.
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

Missed appointments are a significant problem for many businesses. MemoEasy solves this problem by allowing companies to manage their appointments online and sending customers a timely 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 6 developers to build various enterprise web applications that allow merchants and end customers to apply for loans.
These applications also handle the further processing of applications and customer interactions.
Via a service-oriented architecture, numerous backend systems are connected, such as 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

Native

English

Native

Dutch

Advanced

Spanish

Intermediate

French

Intermediate

Statistics

Experience

Total positions 25

Experience in Information Technology 13.5 y

Avg length 2 y 11 m

Longest experience 12 y 3 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

April 2026

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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 (Native), English (Native), Dutch (Advanced), Spanish (Intermediate), French (Intermediate).

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.