Wolfram Sokollek Full-stack software engineer, Angular to the core.

Projects

Every engagement since 2008, newest first. Open one for the details.

2. 2026
   2026 freenet DLS GmbH Senior full-stack developer, focused on AI-driven developmentAI-driven development of customer self-service (CSS) and CMS applications, since 07/2026.

   Team

   12 – 15 people

   • Developed customer self-service (CSS) and CMS applications further with Angular in an Nx monorepo landscape
   • Backend development with NestJS, Express and GraphQL on serverless infrastructure in AWS
   • Turned Figma designs into frontend code
   • Outstanding delivery speed through development driven by Claude Code
   • Brought AI coding assistants (Claude Code, GitHub Copilot) into daily development
   • Drove the integration of AI into the development team and the company

   Technologies

   • TypeScript
   • Angular
   • Nx
   • Node.js
   • NestJS
   • Express
   • GraphQL
   • AWS
   • Serverless
   • Figma
   • Claude Code
   • GitHub Copilot
   • Jira

   Methods

   • AI-assisted development
   • Development driven by Claude Code
3. 2023
   2023 – 2026 Otto (GmbH & Co KG) Senior full-stack developer and DevOpsPrivacy services of otto.de, above all the cookie banner, in a Kanban team with a strong DevOps share.

   Duration

   36 months

   Team

   6 – 8 people

   Workplace

   Remote, on site too

   Project language

   German

   • Took over complex AWS infrastructure and the Spring Boot projects of privacy services from external teams
   • Infrastructure as code with the AWS CDK
   • Designed and built the architecture of the cookie banner in a complex corporate landscape
   • Built an A/B test architecture for the cookie banner
   • Modernised old JavaScript into TypeScript and current web standards
   • Implemented the design of the cookie banner from Figma, with better accessibility
   • Built the end-to-end test architecture that guards the banner
   • Unit, integration, architecture and end-to-end tests, test-driven
   • Monitoring dashboards for the cookie banner in Kibana / Elastic
   • AWS Lambdas in Kotlin and TypeScript
   • Drove fast, iterative and incremental delivery of new features
   • Built and tuned CI/CD workflows with GitHub Actions for speed
   • Analysed accessibility and implemented what was missing
   • Watched runtime and errors continuously to make the system more stable
   • Proactive contributions to lower infrastructure costs
   • Worked closely with other teams on critical production errors, development processes and A/B test results
   • Knowledge transfer sessions in the team
   • Brought AI coding assistants (Claude Code, Copilot) into daily development
   • Outstanding delivery speed through development driven by Claude Code
   • As AI ambassador: drove AI integration in the engineering teams and the company, evaluated agentic developer patterns for a regulated enterprise and shared best practices and guard rails for responsible AI-assisted development

   Technologies

   • TypeScript
   • JavaScript
   • Java
   • Kotlin
   • Vite
   • Vitest
   • Jest
   • Playwright
   • Selenium
   • Spring Boot
   • AWS CDK
   • CloudFormation
   • CloudFront
   • CloudWatch
   • S3
   • ECS
   • Lambda
   • DynamoDB
   • AppConfig
   • SQS
   • SNS
   • Secrets Manager
   • GitHub Actions
   • Jenkins
   • Kibana
   • MongoDB
   • Figma
   • Claude Code
   • Copilot

   Methods

   • Kanban
   • TDD
   • DDD
   • CI/CD
   • Pair Programming
   • Hexagonal architecture
   • Code Reviews
   • Trunk Based Development
   • AI-assisted development
   • Agentic workflows
4. 2021
   2021 – 2023 freenet DLS GmbH Senior full-stack developer and DevOpsAngular customer self-care web apps in a Scrum / Kanban team.

   Duration

   18 months

   Team

   10 – 15 people

   Workplace

   Remote

   Project language

   German

   • Planned and built new features of several customer self-care Angular SPAs as full-stack developer in a complex application landscape
   • Coached the team in Angular, TDD, CI, CD and clean code
   • Introduced processes and practices that raised the team’s productivity, such as trunk-based development and incremental delivery
   • Designed and built the architecture for brand-independent components
   • Unit, integration and end-to-end tests, test-driven
   • Tuned the Nx monorepo for caching and structure
   • Reshaped the project architecture to speed up development
   • Built and improved CI/CD workflows
   • Cut the CI time from over an hour to under 10 minutes
   • Introduced continuous deployment to staging
   • Automated the production deployment with GitHub Actions
   • Worked in a team of developers of every level of experience

   Technologies

   • TypeScript
   • JavaScript
   • Angular 15
   • Nx
   • Jest
   • Cypress
   • Node.js
   • AWS CloudWatch
   • Sentry
   • GitHub Actions
   • GitHub CLI
   • Cucumber
   • Jira
5. 2020
   2020 – 2021 About You AG & Co KG Senior full-stack developerAn Angular shop platform in a Scrum team, with international go-lives.

   Duration

   18 months

   Team

   10 people

   Project language

   English

   • Planned and built new features of the shop platform as full-stack developer in a complex application landscape
   • Planned and ran international go-lives of several shops together with the product owner
   • Direct coordination with product owners, teams and DevOps for efficient delivery
   • Coached the team in Angular and testing
   • Set up team processes that raised productivity
   • Analysed and reshaped the software architecture
   • Migrated the repository into an Nx monorepo
   • Built and extended the CI/CD process
   • Designed and built the API in Express
   • Unit, integration and acceptance tests
   • Search engine optimisation, analysed and implemented
   • Built and tuned the build and runtime Docker containers
   • Planned and built the logging, alarms and dashboards that monitor the applications

   Technologies

   • TypeScript
   • npm
   • Angular 8 – 12
   • Nx
   • Angular SSR
   • Angular Material
   • Karma
   • Jasmine
   • Jest
   • Cypress
   • Storybook
   • Express
   • Node.js
   • Nginx
   • Shell
   • GitLab
   • Docker
   • AWS CloudWatch
   • Sentry
   • Slack
   • Zeplin
6. 2019
   2019 – 2020 Fielmann AG Full-stack developerModernised AngularJS SPAs and a C# REST backend for contact lenses, in a Scrum team.

   Duration

   5 months

   Team

   16 people

   • Planned and built new features of the web application as full-stack developer in a complex application landscape
   • Modernised the existing AngularJS code of the SPA and its build process
   • Coached the team in AngularJS and mentored juniors
   • Kept code quality high through intensive pair programming and code reviews
   • Planned, built and ran MongoDB migrations
   • Deployed the production systems
   • Designed and built REST interfaces in C# with Nancy
   • Unit, integration, API and acceptance tests (SpecFlow, TestCafe)
   • Watched the production system through monitoring
   • Took part in task forces that resolved production incidents
   • Automated the team’s development process with PowerShell scripts
   • Took an active part in stakeholder reviews and coordinated directly with the product owner

   Technologies

   • JavaScript
   • TypeScript
   • npm
   • AngularJS 1.7
   • Grunt
   • Karma
   • Jasmine
   • REST
   • C#
   • Nancy
   • NUnit
   • MongoDB
   • SpecFlow
   • TestCafe
   • TeamCity
   • Kibana
   • Kafka
   • PowerShell
7. 2018
   2018 – 2019 scoyo GmbH Application architect, full-stack developer and coachBuilt a learning portal as SPA / PWA and migrated an AngularJS application, in a Scrum team.

   Duration

   17 months

   Team

   10 people

   • Designed the application architecture of the learning portal as SPA / PWA
   • Planned and built its components
   • Migrated an AngularJS application to Angular
   • Took a creative part in designing the components
   • Introduced a monorepo for the frontend projects
   • Built the Jenkins CI processes
   • Kept code quality high with pull request reviews, CI, high test coverage and metrics
   • Designed and built REST interfaces and data migration applications with Spring Boot
   • Coordinated directly with the product owner, designers and the team
   • Coached the team in Angular and continuous integration through trainings, code reviews and pair programming

   Technologies

   • JavaScript
   • TypeScript
   • npm
   • Angular
   • Angular Material
   • Akita
   • Karma
   • Protractor
   • REST
   • Java
   • Spring Boot
   • Hibernate
   • MySQL
   • Jenkins
   • AWS S3
   • CloudFront
   • XML
   • JSON
   • Git
8. 2017
   2017 – 2018 HealthAG Application architect and full-stack developerA distributed invoice optimisation system in a Scrum team.

   Duration

   6 months

   Team

   5 people

   Project language

   German

   • New features and unit tests in the Angular 4 frontend and their interfaces in the Spring Boot backend
   • Restructured the frontend and introduced Jasmine unit tests for better coverage
   • Designed, built and tested a new architecture for the central invoice analysis component of the backend, which made a key milestone of the project possible
   • Code reviews and pair programming sessions as coaching

   Technologies

   • Angular 4
   • Karma
   • Less
   • TypeScript
   • Angular CLI
   • Java
   • RegEx
   • Spring Boot
   • RxJava
   • Mockito
   • MongoDB
   • REST
   • Bamboo
9. 2016
   2016 – 2017 eSailors Full-stack developer and coachPayment features and microservices in a Scrum team.

   Duration

   12 months

   Team

   7 – 8 people

   Project language

   English / German

   • New features, unit and integration tests in the AngularJS web shop, full-stack
   • New features and tests in the Wicket back office
   • REST microservices and their Ribbon clients
   • Stored procedures
   • Code reviews
   • Onboarding sessions for team members on the AngularJS web shop
   • Direct coordination with product owner, QA, team and designers

   Technologies

   • AngularJS
   • Karma
   • HTML
   • Sass
   • TypeScript
   • Gulp
   • Java
   • Spring Boot
   • Ribbon
   • RxJava
   • Wicket
   • Mockito
   • Docker
   • Kafka
   • MongoDB
   • Redis
   • Oracle SQL
   • REST
   • Bash
   • ZooKeeper
   • Datadog
   • Zipkin
10. 2016
    2016 T-Systems Application architect and full-stack developerA railway operations monitoring SPA in an international Scrum team.

    Duration

    10 months

    Team

    8 + 8 people

    Workplace

    Germany and Spain

    Project language

    English

    • Extended and improved the modules of the frontend framework
    • Planned and built components of the SPA
    • Introduced a component-oriented project structure
    • AngularJS knowledge transfer and coaching of developers
    • Code reviews and higher test coverage for quality assurance
    • Optimised the build processes of backend and frontend
    • Architecture documentation in UML, developer documentation in ngDocs
    • Close coordination with product owners and the team

    Technologies

    • AngularJS
    • JavaScript
    • HTML
    • CSS
    • SVG
    • WebSockets
    • Node.js
    • Chrome App
    • npm
    • Bower
    • Gulp
    • ngDocs
    • Jasmine
    • Karma
    • Java
    • Spring
    • Hibernate
    • MySQL
    • Tomcat
    • CORBA
11. 2014
    2014 – 2015 scoyo GmbH Application architect and full-stack developerThe parents portal of a learning application.

    Duration

    13 months

    Team

    6 people

    • Designed the application architecture
    • Planned and built components of the SPA
    • Took a creative part in designing the components
    • Advised on the Scrum process
    • Built the build processes for TDD and CI
    • TDD with unit and end-to-end tests
    • Introduced the Flux architecture for AngularJS and TypeScript
    • Close coordination with the product owner and the team

    Technologies

    • JavaScript
    • TypeScript
    • AngularJS
    • HTML5
    • CSS3
    • Less
    • Angular Material
    • Bootstrap
    • Node.js
    • Flux
    • npm
    • Grunt
    • Gulp
    • Karma
    • Protractor
    • REST
    • Java
    • Spring Boot
    • MySQL
    • Jenkins
    • Bamboo
    • S3
12. 2014
    2014 Bauer Media Group · SinnerSchraderFull-stack developerExtended and tuned a subscription portal of a publisher.

    Duration

    2 months

    Team

    5 people

    • Planned and built new features, extensions and fixes of the online subscription portal
    • Close coordination with the client for efficient delivery and short paths
    • Focus on the backend

    Technologies

    • JSP
    • Java
    • JavaScript
    • CSS
    • Spring
    • Struts
    • Hibernate
    • Subversion
    • MySQL
    • Commerce Framework
    • UML
    • MDA
    • Tomcat
13. 2014
    2014 Beck’s · SinnerSchraderApplication architect and full-stack developerA customer loyalty marketing campaign for a beverage group.

    Duration

    3 months

    Team

    3 – 7 people

    • Introduced the Scrum process and wrote the user stories
    • Built the build process, set up test-driven development and planned the CI environment
    • Responsible for the project architecture, its implementation and its adherence
    • Unit and end-to-end tests, service and controller layers
    • Focus on architecture, backend and build environment

    Technologies

    • AngularJS
    • Karma
    • Protractor
    • CoffeeScript
    • HAML
    • Sass
    • Grunt
    • Bower
    • Node.js
    • npm
    • Git
    • REST
14. 2014
    2014 Joey’s · SinnerSchraderConsultant and full-stack developerExtended and tuned the online shop of a pizza delivery chain.

    Duration

    3 months

    Team

    4 – 7 people

    • Planned and built new features, extensions and fixes of the chain’s online shop
    • Focus on the backend

    Technologies

    • JSP
    • Java
    • JavaScript
    • CSS
    • Spring
    • Struts
    • Hibernate
    • Git
    • MySQL
    • Commerce Framework
    • UML
    • MDA
    • Tomcat
15. 2014
    2014 Axel Springer · SinnerSchraderConsultant and full-stack developerRisk assessment for the introduction of a new online shop system.

    Duration

    3 months

    Team

    8 people

    Workplace

    Scrum team across two sites

    • Analysed the existing system landscape
    • Built a prototype reader shop connected to SAP and legacy systems
    • Supported the proposal for a new reader shop

    Technologies

    • JSP
    • Java
    • Spring
    • Struts
    • Hibernate
    • Git
    • MySQL
    • Web services
    • REST
    • Commerce Framework
    • UML
    • MDA
    • Tomcat
16. 2012
    2012 – 2013 Etvice GmbH Full-stack developerModernised an insurance CRM.

    Duration

    6 months

    Team

    8 – 15 people

    • Designed and built the web GUI components with Wicket and jQuery
    • Worked with the client and the design agency
    • Analysed the existing process model and introduced agile methods for productivity and quality

    Technologies

    • Java
    • JavaScript
    • CSS
    • Wicket
    • jQuery UI
    • Tomcat
    • Git
    • Hibernate
    • MySQL
17. 2010
    2010 – 2012 SevenOne Media GmbH Full-stack developerThe web portal of a leading media company.

    Team

    2 – 8 people

    • Designed and built portlet-based templates for content management, closely with the client
    • Adapted the Liferay backend to the client’s needs
    • Focus on refactoring and tests, in a Scrum team

    Technologies

    • Liferay Portal
    • Spring MVC
    • Java
    • JavaScript
    • HTML
    • JSP
    • CSS
    • Velocity
    • Hibernate
    • MySQL
    • Maven
    • Ant
    • Eclipse
    • Tomcat
    • JUnit
18. 2009
    2009 – 2010 HAW Hamburg Bachelor thesisSimulation of evacuation scenarios with intentional agents.

    Duration

    6 months

    • Research on BDI agents at HAW Hamburg
    • Requirements analysis and design
    • System architecture with the agent-oriented software engineering method Prometheus
    • Agents steered by complex emotional concepts, with a physics engine
    • Graded very good

    Technologies

    • Java
    • Jadex
    • Phys2D
    • Swing
    • Eclipse
    • Prometheus
19. 2009
    2009 British American Tobacco (Germany) GmbH Full-stack developerAn online management system for the sales force and end customers.

    Duration

    12 months

    Team

    3 – 4 people

    • Designed and test-drove frontend and backend parts
    • Delivered in a Scrum team

    Technologies

    • Java
    • Spring MVC
    • JSP
    • JavaScript
    • CSS
    • Hibernate
    • MySQL
    • Tomcat
    • Maven
    • Ant
    • Eclipse
    • JUnit
20. 2008
    2008 Sixt GmbH & Co KG Full-stack developerBackend and frontend of a car rental management system.

    Duration

    12 months

    Team

    4 people

    • Designed and built parts of backend and frontend that manage and control rentals, among them address management and damage recording
    • Defined and wrote JUnit tests

    Technologies

    • Java
    • Struts
    • JSP
    • JUnit
    • Hibernate
    • MySQL
    • Ant
    • IntelliJ IDEA
    • Tomcat