Mathis Dudler - Senior Web/Frontend Developer

Q: Where is Mathis based?

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

Q: What languages does Mathis speak?

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

Q: How many years of experience does Mathis have?

Mathis has at least 9 years of experience. During this time, Mathis has worked in at least 5 different roles and for 9 different companies . The average length of individual experience is 1 year and 8 months . Note that Mathis may not have shared all experience and actually has more experience.

Q: What is Mathis's latest experience?

Mathis's most recent position is Senior Web/Frontend Developer at KemCom GmbH .

Q: What companies has Mathis worked for in recent years?

In recent years, Mathis has worked for KemCom GmbH , Getslash GmbH , Technische Hochschule OWL , RTL Technology GmbH , and My Calorie Tracker .

Q: Which industries is Mathis most experienced in?

Mathis is most experienced in industries like Information Technology , Media and Entertainment , and Banking and Finance . Mathis also has some experience in Education , Healthcare , and Retail .

Q: Which business areas is Mathis most experienced in?

Mathis is most experienced in business areas like Information Technology , Product Development , and Quality Assurance . Mathis also has some experience in Operations , Research and Development , and Marketing .

Q: Which industries has Mathis worked in recently?

Mathis has recently worked in industries like Information Technology , Media and Entertainment , and Education .

Q: Which business areas has Mathis worked in recently?

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

Recommended expert

Bielefeld, Germany

Experience

Jan 2025 - Mar 2025

3 months

Senior Web/Frontend Developer

KemCom GmbH

Modernized the homepage of a luxury residential building for a better user experience and contemporary design
Developed and implemented the website and modules using current web technologies
Optimized for SEO to improve visibility in search engines
Created a modern and professional appearance that enhances the building's image
Increased efficiency in content maintenance by using a CMS
Technologies: HTML5, HTML, CSS3, CSS, JavaScript, Umbraco, C#, .NET

Apr 2024 - Aug 2024

5 months

Fullstack Developer

Getslash GmbH

Developed a new white-label software for booking internet plans as a seamless integration into the existing booking process
Built a responsive web app in Vue.js using pnpm Workspaces
Integrated unit and integration tests with Vitest and E2E tests with Cypress
Implemented the headless CMS Directus with a PostgreSQL database
Set up a GitLab CI/CD pipeline for automated quality assurance and packaging
Developed REST and GraphQL APIs
Decided to discontinue the current tech stack and began transitioning to the new technology direction
Technologies: Vue.js, TypeScript, JavaScript, HTML5, HTML, CSS, Tailwind, Vitest, Cypress, PrimeVue, Directus, PostgreSQL, Node.js, GitLab CI/CD, REST, pnpm, Vite, Git, Confluence, Jira

Feb 2024 - Dec 2024

11 months

Senior Web/Frontend Developer

Getslash GmbH

Created a flagship product as a showcase for the future-oriented technological direction of the frontend
Updated a legacy Angular web app to the latest technology standards
Introduced Tactical Domain-Driven Design in an NX-powered monorepo
Ensured code quality with automated unit, integration, snapshot, and E2E tests
Provided DevOps coaching to improve the release process and best practices
Successfully launched with multiple clients and added to the portfolio
Project served as a blueprint for the company's further technology direction
Reduced disruptions to almost zero with 100% unit test coverage, comprehensive E2E test coverage, and fully automated releases
Technologies: Angular, TypeScript, JavaScript, HTML5, HTML, SCSS, CSS, Jest, Cypress, NX, RxJS, Storybook, Node.js, GitLab CI/CD, REST, npm, yarn, ESLint, Webpack, Babel, semantic-release, Git, Confluence, Jira

Feb 2024 - Dec 2024

11 months

Senior Web/Frontend Developer

Getslash GmbH

Extended and modernized the existing product using current technologies and best practices
Planned and implemented a strategy to use Angular version >12 while considering ES5 compatibility
Developed a responsive web app in Angular for iTV, digital signage, and mobile devices
Updated the legacy app to defined best practices and technologies
Transpiled, packaged, and optimized build artifacts for ES5 devices and browsers
Improved GitLab CI/CD build pipeline performance through parallelization, caching, and build optimizations
Successfully updated to Angular 19 with a custom build process to restore ES5 compatibility
Launched multiple complex features for several clients
Optimized the CI/CD pipeline, reducing deployment time by 50%
Technologies: Angular, TypeScript, JavaScript, HTML5, HTML, SCSS, CSS, Jest, Cypress, NX, NgRx, RxJS, Rollup, Babel, Terser, esbuild, Vite, PostCSS, Storybook, Node.js, GitLab CI/CD, REST, npm, yarn, ESLint, Webpack, semantic-release, Bootstrap, Git, Confluence, Jira

Feb 2024 - Dec 2024

11 months

Senior Web/Frontend Developer

Getslash GmbH

Provided design tokens and their use in products for the customizability of the white-label software
Technically implemented by providing an npm package based on Figma Tokens Studio
Fully automated and quality-assured versioning, documentation, and packaging of design tokens in releases
Technologies: Node.js, Style Dictionary, Jest, semantic-release, GitLab CI/CD, husky, Git, git hooks, Figma, npm, yarn

Apr 2023 - Dec 2023

9 months

Research Associate

Technische Hochschule OWL

Research, implementation and optimization of AI and ML algorithms for generating and analyzing synthetic data
Implementation of (Conditional) Variational Autoencoders and Generative Adversarial Networks using TensorFlow, PyTorch and scikit-learn
Improving the accuracy of machine learning models through data-driven optimizations
Creating scientific reports and visualizations
Technologies: Python, TensorFlow, Keras, PyTorch, scikit-learn, pandas, seaborn, Matplotlib, Plotly

Jan 2022 - Feb 2024

2 years 2 months

Senior Web/Frontend Developer

RTL Technology GmbH

Development of the RTL+ music streaming app with a modern frontend architecture for over 4 million subscribers
Designing the architecture and implementing with Angular in an NX-based monorepo
Supporting the development of microservices in Node.js, delivering Docker images and managing Kubernetes clusters
Integrating extensive test coverage with unit, integration, snapshot and E2E tests
Optimizing for server-side rendering (SSR) and search engine optimization (SEO)
DevOps coaching and optimizing GitLab CI/CD pipelines for on-demand releases
Introducing clean code guidelines and collective code ownership
Successful launch of the platform with 100% unit and full E2E test coverage
Seamless handover to the internal development team for long-term maintenance
Technologies: Angular, TypeScript, JavaScript, HTML5, HTML, SCSS, CSS, Node.js, Jest, Cypress, NX, GraphQL, SSR, SEO, Storybook, Strapi, Kafka, Stencil, React, GitLab CI/CD, Docker, Kubernetes, npm, yarn, ESLint, Webpack, Git, Confluence, Jira, Agile, Scrum, SAFe

May 2021 - Nov 2021

7 months

Fullstack Developer

My Calorie Tracker

New development of a cross-platform calorie tracking app
Implementing a progressive web app with Vue.js, Vuex, Vue Router, TypeScript, HTML5 and SCSS
Ensuring quality with unit tests in Jest and Jasmine as well as E2E tests in Playwright
Implementing with Firebase including authentication, hosting and Cloud Firestore
Defining a GitLab CI/CD pipeline for linting, building, testing and automated deployment
Successful project completion and continuous improvement
Technologies: Vue.js, TypeScript, JavaScript, HTML5, HTML, SCSS, CSS, Vitest, Jest, Jasmine, Playwright, Firebase, NoSQL, PWA, GitLab CI/CD, npm, Git

Jan 2020 - Dec 2021

2 years

Technical Product Owner

Diamant Software GmbH

Launch of the new Diamant/4 product generation and replacement of Internet Explorer 11 with a standalone web client
Leading an agile development team using Scrum in a SAFe context
Defining, prioritizing and owning the team backlog including epics, features and user stories
Developing and defining architecture requirements, especially in the context of microfrontends
Introducing Lean UX, collaborative UX design and design sprints
Gathering user feedback, stakeholder management and conducting workshops with methods like MVP, Pareto principle, user story mapping and story slicing
Successful launch and integration as an OEM solution with partners
Significant performance improvement in the team by preparing technological concepts
Technologies: Scrum, SAFe, Kanban, User Stories, Microfrontends, Architecture, UI/UX, Design Sprints, User Story Mapping

Mar 2019 - Feb 2020

1 year

Web/Frontend Developer

Diamant Software GmbH

Unifying multiple clients into a single web client and delivering a company-wide design system
Managing requirements, implementation and integration of architecture requirements in Angular
Defining and implementing new interfaces together with the team, stakeholders and architects
Developing automated tests based on the agile test matrix and ATDD
Configuring Azure Pipelines to promote the collective code ownership mindset and clean code guidelines
Autonomous and decentralized development through micro-frontend architecture and component library
Technologies: Angular, TypeScript, JavaScript, HTML5, HTML, Less, CSS, Node.js, Jest, Jasmine, Karma, RxJS, Kendo UI, SonarQube, ESLint, Swagger, OpenAPI, Azure Pipelines, Azure DevOps Server, npm, yarn, Webpack, ng-packagr, semantic-release, git hooks, Git, Scrum, Agile, SAFe, UI/UX

Feb 2018 - Feb 2019

1 year 1 month

Web/Frontend Developer

Volkswagen Financial Services

Rebuilt the used car platform to reduce server load and improve performance
Implemented a reactive web app with Angular and NgRx state management
Integrated unit and integration tests
Connected to OData and SOAP APIs as well as WebSocket connections for live updates
Significant performance improvements and better user experience
Increased revenue through reliable availability and performance
Technologies: Angular, TypeScript, JavaScript, HTML5, HTML, SCSS, CSS, Node.js, NgRx, RxJS, Jasmine, Karma, OData, SOAP API, npm, WebSockets, RabbitMQ, STOMP, Azure, Git, Jira, Confluence

Oct 2016 - Jan 2018

1 year 4 months

Fullstack Developer

Wortmann Group

Created a cross-platform app to connect sales, marketing, and sales staff
Developed responsive web apps with OpenUI5
Built native Android and iOS apps with Apache Cordova
Developed RESTful and OData APIs and provided 2nd-level support and training to internal IT
Stored data in a database with automatic schema generation
Successfully launched and handed over to the internal development team
Technologies: OpenUI5, JavaScript, Java, Maven, Cordova, Firebase, Tomcat, JAX-RS, Olingo, MySQL, Hibernate, Git, Confluence, Jira, UI/UX

Jun 2016 - Sep 2016

4 months

Web/Frontend Developer

EDEKA

Enhanced and fixed bugs in the visit reporting app to speed up and simplify store evaluations
Developed a responsive web app with SAPUI5
Extended the SAP Fiori Launchpad with customer-specific processes
Added new features like offline functionality to increase field staff productivity
Technologies: SAPUI5, SAP Fiori, JavaScript, Git, Jira, Confluence

Industry Experience

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

Experienced in Information Technology, Media and Entertainment, Banking and Finance, Education, Healthcare, and Retail.

Information Technology

Media and Entertainment

Banking and Finance

Education

Healthcare

Retail

Business Area Experience

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

Experienced in Information Technology, Product Development, Quality Assurance, Operations, and Research and Development.

Information Technology

Product Development

Quality Assurance

Operations

Research and Development

Summary

Since 2016 experience in developing scalable web apps and modern frontend technologies (Angular, Vue.js, TypeScript).

Specialized in future-proof architectures, design systems, and automated CI/CD pipelines.

Experienced in leading agile teams (Scrum, SAFe) and coaching on Clean Code and best practices.

Passionate about innovative technologies and solutions that combine developer and user needs.

Skills

Javascript/typescript: Angular, Vue.js, Node.js, Nx, Vite, Webpack, Babel, Esbuild, Rollup, Terser
Python: Tensorflow, Pytorch, Scikit-learn, Pandas, Matplotlib, Seaborn, Numpy
Testing: Jest, Cypress, Vitest, Playwright, Jasmine, Karma
State Management: Rxjs, Ngrx, Vuex, Pinia
Style Sheet: Html5, Css3, Scss, Less, Postcss
Protocols: Graphql, Rest, Odata, Soap
Devops: Gitlab Ci/cd, Azure Pipelines, Docker, Kubernetes

Languages

German

Native

English

Advanced

Education

Oct 2012 - Jun 2016

FH Bielefeld

Bachelor of Science · Applied Mathematics · Bielefeld, Germany

Certifications & licenses

Kubernetes For App Developers

Linux Foundation

Certified SAFe® 5 Product Owner/ Product Manager

Google Cloud Architect

Coursera Inc.

PM Academy - Foundation Setup

REPLY AG

Statistics

Experience

Total positions 13

Experience in Information Technology 5 y

Avg length 11 m

Longest experience 2 y 1 m

Expertise

Recent roles Senior Web/Frontend Developer, Fullstack Developer, Research Associate

Main industries Information Technology, Media and Entertainment, Banking and Finance

Main business areas Information Technology, Product Development, Quality Assurance

Qualifications

Highest degree Bachelor

Certifications earned 4

Profile

Created

February 2024

Last Update

March 2026

Need a freelancer? Find your match in seconds.

Try FRATCH GPT

Frequently asked questions

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

Where is Mathis based?

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

What languages does Mathis speak?

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

How many years of experience does Mathis have?

Mathis has at least 9 years of experience. During this time, Mathis has worked in at least 5 different roles and for 9 different companies. The average length of individual experience is 1 year and 8 months. Note that Mathis may not have shared all experience and actually has more experience.

What roles would Mathis be best suited for?

Based on recent experience, Mathis would be well-suited for roles such as: Senior Web/Frontend Developer, Fullstack Developer, Research Associate.

What is Mathis's latest experience?

Mathis's most recent position is Senior Web/Frontend Developer at KemCom GmbH.

What companies has Mathis worked for in recent years?

In recent years, Mathis has worked for KemCom GmbH, Getslash GmbH, Technische Hochschule OWL, RTL Technology GmbH, and My Calorie Tracker.

Which industries is Mathis most experienced in?

Mathis is most experienced in industries like Information Technology, Media and Entertainment, and Banking and Finance. Mathis also has some experience in Education, Healthcare, and Retail.

Which business areas is Mathis most experienced in?

Mathis is most experienced in business areas like Information Technology, Product Development, and Quality Assurance. Mathis also has some experience in Operations, Research and Development, and Marketing.

Which industries has Mathis worked in recently?

Mathis has recently worked in industries like Information Technology, Media and Entertainment, and Education.

Which business areas has Mathis worked in recently?

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

What is Mathis's education?

Mathis holds a Bachelor in Applied Mathematics from FH Bielefeld.

Does Mathis have any certificates?

Mathis has 4 certificates. Among them, these include: Kubernetes For App Developers, Certified SAFe® 5 Product Owner/ Product Manager, and Google Cloud Architect.

What is the availability of Mathis?

Mathis is immediately available full-time for suitable projects.

What is the rate of Mathis?

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