Maciej W.-Senior Software Engineer
Check rate
Experience
Senior Software Engineer
EQS Group GmbH
- Further development of the compliance products
- Responsible for the Senior Software Engineer role
- Team size: 5 - 15 people
- Tools: TypeScript, Angular 18, Node.js, Nest.js, AWS, Kubernetes/Helm Charts/Docker, GitLab (CD/CI), Elasticsearch, MySQL, OpenAI, Java, RabbitMQ
Senior Software Engineer (Freelancer)
C2S2 GmbH
- Further development of the product at [link]
- Responsible for the Senior Software Engineer role
- Team size: 4 - 6 people
- Tools: Angular 11, AngularJS, TypeScript, Java 8, Node.js, Elasticsearch, Microsoft Azure, MongoDB, Express.js, Actionhero
Senior Full Stack Developer (Freelancer)
KISTERS AG
New development of the central reporting portal of the federal government for the electronic submission of reports for ships in maritime transport
Team size: 8 people
Frontend (approx. 90%)
Design and definition of models
Creation of input forms for reporting classes (reactive forms)
Creation of reusable UI components
Backend (approx. 10%)
Extension of REST interfaces
Creation of SpringData repositories
Tools: Angular 9.x, TypeScript, Node.js, SASS, Java 8, Spring Boot, Data, Hibernate, Elasticsearch, Git, Jenkins, Ansible, REST, Jira, IntelliJ IDEA
Senior Full Stack Developer (Freelancer)
LunchNow.com
- Further development of the partner area for managing and administering restaurants and dishes
- Further development of the backend for the partner area
- Development of the payment feature for the web application
- Creation of UI components
- Integration of the MangoPay payment provider with the backend
- Further development of the mobile app (React Native)
- Tools: Angular 7.x, React Native, TypeScript, SASS, Node.js, Firebase (Firestore, Cloud Functions, Auth, Storage), Git, Bitbucket, REST, Jasmine, Jira, Scrum, IntelliJ IDEA
Developer, Designer, Architect
Oyeyku
- Development of an app for collecting things with friends for shared activities in real time ([link]
- Chat function
- Inviting friends using Dynamic Links
- Tools: React Native, React JS, Firebase, IntelliJ IDEA, Git
Android Developer (Freelancer)
Volkswagen AG
- Development of an Android event app to display information about exhibited cars based on the current location
- Integration of AR and beacon technology
- Bug fixing
- Tools: Android Studio, Java 8, Android SDK, Git
Developer, Designer, Architect
Real Color Mixer
- Implementation of mathematical models for subtractive color mixing to simulate paint color mixtures
- Development of UI components
- Implementation of a search function to find a mixture for a color
- Tools: Android SDK, Java 8, SQLite, Git, Android Studio
Java and Frontend Developer
Webware-Experts OHG
- Contributed to the Web Frameworks Competence Center project for the Volkswagen Group
- Evaluation and definition of web technologies for the Volkswagen Group
- Support for various in-house projects during design and development phases (e.g. MBNeu, GroupFind, Stimmungsbarometer)
- Development of project-specific solutions and themes compliant with VW CI
- Investigation of new Rich Internet Applications / Frameworks
- Tools: Angular 1.5–6.x, Java, JSF 1.2/2.x, IceFaces, PrimeFaces, HTML5, CSS3, SASS, LESS, TypeScript, JavaScript, NodeJS, Bootstrap, Spring Boot, Hibernate, Spring Security, Microservices, REST, GWT, Vaadin, ExtJS, Tomcat, WebSphere, WebSeal, SVN, Git, Maven, Keycloak, Eclipse, RAD, Cloud Foundry, OpenStack, Artifactory, Jasmine, JUnit, Scrum
Working Student
Netzlink GmbH
- Assembly, installation, and maintenance of PC systems, IBM xServers, IBM System Storages, and Microsoft and Linux client operating systems
- Creation and processing of video podcasts
Student Assistant, Java Developer
TU Braunschweig
- Development of web systems with Struts, Velocity, PostgreSQL, and Java 1.4
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Automotive, Education, Food and Beverage, and Government and Administration.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, and Research and Development.
Summary
I am a Senior Software Engineer with more than 12 years of professional experience, mainly specializing in full-stack applications, with a focus on: Angular, Node.js, Express.js, Nest.js, MongoDB, Elasticsearch.
Skills
- Programming Languages: Typescript, Javascript, Java
- Css, Less, Sass, Html, Sql
- Frameworks And Tools: Angular (16), React.Js, Material Ui, Bootstrap, Jquery, Eslint, Jest, Jasmine, Webdriverio, Node.Js, Express.Js, Nest.Js, Mongodb, Elasticsearch, Intellij Webstorm, Eclipse, Android Studio, Android, React Native, Git, Maven, Java Ee, Jsf (1.2 And 2.X), Primefaces, Icefaces, Scrum
- Devops Tools: Aws, Ms Azure, Kubernetes + Docker, Gitlab, Jira, Jfrog, Confluence, Jenkins, Google Firebase
Languages
Education
TU Braunschweig
Diplom Informatiker · Computer Science · Braunschweig, Germany
Gymnasium in Rypin
Rypin, Poland
Certifications & licenses
Führerschein Klasse A Und B
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Maciej is based in Hamburg, Germany.
Maciej speaks the following languages: Polish (Native), German (Advanced), English (Intermediate), Spanish (Elementary).
Maciej has at least 20 years of experience. During this time, Maciej has worked in at least 8 different roles and for 10 different companies. The average length of individual experience is 2 years. Note that Maciej may not have shared all experience and actually has more experience.
Based on recent experience, Maciej would be well-suited for roles such as: Senior Software Engineer, Senior Software Engineer (Freelancer), Senior Full Stack Developer (Freelancer).
Maciej's most recent position is Senior Software Engineer at EQS Group GmbH.
In recent years, Maciej has worked for EQS Group GmbH and C2S2 GmbH.
Maciej is most experienced in industries like Information Technology, Automotive, and Education. Maciej also has some experience in Food and Beverage and Government and Administration.
Maciej is most experienced in business areas like Information Technology, Product Development, and Research and Development.
Maciej has recently worked in industries like Information Technology.
Maciej has recently worked in business areas like Information Technology and Product Development.
Maciej holds a Master in Computer Science from TU Braunschweig.
Maciej has 1 certificate: Führerschein Klasse A Und B.
The availability of Maciej needs to be confirmed.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 17 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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