Karsten Gerigk - Software Development

Q: Where is Karsten based?

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

Q: What languages does Karsten speak?

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

Q: How many years of experience does Karsten have?

Karsten has at least 9 years of experience. During this time, Karsten has worked in at least 5 different roles and for 4 different companies . The average length of individual experience is 1 year and 3 months . Note that Karsten may not have shared all experience and actually has more experience.

Q: What is Karsten's latest experience?

Karsten's most recent position is Software Development at Siemens Mobility GmbH .

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

In recent years, Karsten has worked for Siemens Mobility GmbH , secunet security AG , and DB Systel .

Q: Which industries is Karsten most experienced in?

Karsten is most experienced in industries like Information Technology (IT) , Food and Beverage , and Banking and Finance . Karsten also has some experience in Transportation and Logistics .

Q: Which business areas is Karsten most experienced in?

Karsten is most experienced in business areas like Information Technology (IT) and Product Development .

Q: Which industries has Karsten worked in recently?

Karsten has recently worked in industries like Information Technology (IT) , Food and Beverage , and Transportation and Logistics .

Q: Which business areas has Karsten worked in recently?

Karsten has recently worked in business areas like Information Technology (IT) and Product Development .

Recommended expert

Hanau, Germany

Experience

Mar 2024 - Sep 2024

7 months

Software Development

Siemens Mobility GmbH

Maintenance and further development of several existing projects in the "AI-powered transportation" sector, based on React, REST-like APIs (Spring, Python) and various design libraries
Responsible in the project for build processes, JavaScript development, architecture, coordination and communication with the design team
Agile software development (Scrum, Kanban)
Technologies: React, TypeScript, Ant Design, Node.js, Yarn, Vite, i18n, Postgres, Keycloak, Jest, Cypress, Storybook
Tools: IntelliJ, Git, GitLab CI, Docker, Confluence, Jira

Dec 2023 - Present

2 years 3 months

What is it worth: Track your time

Web app for project-based tracking of activities/tasks
Technologies: PWA, Angular 17+, TypeScript, Bootstrap 5, HTML, Sass, JavaScript, IndexedDB

Nov 2023 - Present

2 years 4 months

WebGate Bookmark Organizer

Web app for organizing, managing, and syncing bookmarks
Technologies: PWA, Vue 3, TypeScript, Vite, Tailwind, HTML, Sass, JavaScript, FormKit, Pinia, Headless UI, IndexedDB
Tools: IntelliJ, Git, GitLab CI, Jenkins, AWS, OpenShift, Grafana, Kibana, Sketch, Figma, Confluence, Jira, Artifactory

Jan 2023 - Present

3 years 2 months

Tasty-Every-Day: Menu-Planer

Web app for planning personal daily menus
Idea, UI design, front- and backend development
Continuous integration and deployment
Technologies: PWA, React, Express, Node.js, TypeScript, Vite, MUI, HTML, CSS, JavaScript, SQL, Plesk, Docker

Sep 2021 - May 2023

1 year 9 months

Software Development

secunet security AG

Support in the redevelopment of the security product configuration software based on React and REST API (Spring backend)
Lead development, UX and UI design
Collaboration with cross-functional UX and backend teams
Agile software development (Scrum)
Technologies: React, TypeScript, Angular, Material UI, Node.js, npm/yarn, Vite, i18n, SQL, Jest, Playwright, REST API, Storybook, Spring, Java
Tools: IntelliJ, Git, GitLab CI, Ubuntu, Docker, Sketch, Figma, Confluence, Jira, Artifactory

Sep 2018 - Jun 2021

2 years 10 months

Software Development

DB Systel

Development of various web applications in the DevOps team based on React, JavaScript/TypeScript
Lead development and collaboration with UX and backend teams
Agile software development (Scrum), continuous development, continuous integration, domain-driven design
Technologies: PWA, React, Express, Node.js, TypeScript, Vite, MUI, HTML, CSS, JavaScript, SQL, Plesk, Docker

May 2017 - Aug 2018

1 year 4 months

Component Library Development

Commerzbank AG

New development of a component library using React and ES6 as a base for upcoming digital products of international teams in DevOps mode
Lead development, consulting, UX, and UI design
Agile software development (Scrum)
Technologies: Node.js, npm, Grunt, Sass, React, ES6, TypeScript, Bootstrap 3, PostCSS, Webpack, Jest
Tools: IntelliJ, Git, TFS, Nexus, Jenkins, MS Azure, Confluence, Kanban

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (6.5 years), Food and Beverage (3 years), Banking and Finance (1.5 years), and Transportation (0.5 years).

Information Technology

Food and Beverage

Banking and Finance

Transportation

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (8.5 years) and Product Development (8.5 years).

Information Technology

Product Development

Summary

Software Development | Consulting | UX / UI Design | Concept / Architecture

As a freelance software developer, I've been working in the IT and media industry for over 20 years, focusing mainly on web technologies.

My work always centers around the user interface: frontend development, UX, concept, UI design and technical consulting are among my strengths.

Of course, I'm happy to help throughout the entire process. Even though my focus is on the user interface, I work across the full stack. So I offer not just coding, but also support your product in setting up the environment - from planning and integrating agile processes and testing to the deployment pipeline.

Thanks to the many projects I've worked on, I can offer a broad range of experience and have a keen eye for design and usability.

New technologies? Absolutely! If I'm not already familiar with them, I'm eager to learn whatever is needed to build the best product.

Skills

Software Development: Web-based Software, Web Apps, Pwas
Web-development: Websites, Spas, …
Usability: Ux, Ui Architecture And Design
Scripting Languages: Typescript, Javascript, Java, Php
Browser Tech: Html, Html5, Css, Sass & Co.
Server: Node.js, Sql, Graphql, …
Build: Npm, Yarn, Webpack, Vite, Rollup, …
Deployment: Gitlab, Gitlab Ci, Docker
Methods: Scrum, Kanban, Agile Software Development
Tools: Jira, Confluence
Processes: Devops (Ci, Cd)
Concepts: Rest, Domain Driven Design, Test Driven Development, Clean Code, Mobile First
Frontend: React, Angular, Vue, Next.js, Rest, Redux, Express …
Testing: Jest, Testing Library, Cypress, Playwright
Design: Various Design Libraries, Material Ui, Tailwind, Bootstrap, Storybook …
Activities: Frontend Development, Ui Engineering, Prototyping, Ux, Ui Design, Concept & Architecture, Component Libraries, Deployment Processes, Data Integration
Other Tools: Git, Sketch, Figma, Xd, Adobe Creative Suite
Operating Systems: Mac Os, Windows, Linux, Ubuntu

Languages

German

Native

English

Advanced

Profile

Created

September 2024

Last Update

January 2026

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Frequently asked questions

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

Where is Karsten based?

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

What languages does Karsten speak?

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

How many years of experience does Karsten have?

Karsten has at least 9 years of experience. During this time, Karsten has worked in at least 5 different roles and for 4 different companies. The average length of individual experience is 1 year and 3 months. Note that Karsten may not have shared all experience and actually has more experience.

What roles would Karsten be best suited for?

Based on recent experience, Karsten would be well-suited for roles such as: Software Development, What is it worth: Track your time, WebGate Bookmark Organizer.

What is Karsten's latest experience?

Karsten's most recent position is Software Development at Siemens Mobility GmbH.

What companies has Karsten worked for in recent years?

In recent years, Karsten has worked for Siemens Mobility GmbH, secunet security AG, and DB Systel.

Which industries is Karsten most experienced in?

Karsten is most experienced in industries like Information Technology (IT), Food and Beverage, and Banking and Finance. Karsten also has some experience in Transportation and Logistics.

Which business areas is Karsten most experienced in?

Karsten is most experienced in business areas like Information Technology (IT) and Product Development.

Which industries has Karsten worked in recently?

Karsten has recently worked in industries like Information Technology (IT), Food and Beverage, and Transportation and Logistics.

Which business areas has Karsten worked in recently?

Karsten has recently worked in business areas like Information Technology (IT) and Product Development.

What is the availability of Karsten?

Karsten is immediately available full-time for suitable projects.

What is the rate of Karsten?

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