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Christian Seifert

Full-Stack-Developer

Christian Seifert
Dresden, Germany

Experience

Dec 2024 - Present
1 year 2 months

Full-Stack-Developer

AssistenzUp GmbH

  • Complete redevelopment of a time and work tracking software for student support and people with disabilities.
  • Responsible for the fundamental restructuring of the code using Angular 19 (frontend) and Next.js (backend) on a TypeScript basis.
  • Implemented as a monorepo with NX workspace.
  • Set up AWS infrastructure and built a GitHub CI/CD pipeline for automated deployments.
Jul 2023 - Present
2 years 7 months

Full-Stack-Developer

INTERGAST Großverbraucher-Service Handelsgesellschaft mbH

  • Developed a B2B wholesale shop with a microservice architecture.
  • Used PHP 8.2, Laravel 10, Angular 17, and TypeScript for development and implementation.
  • Designed and implemented features on both sides of the application.
  • Collaborated closely with team members for seamless integration and optimal performance.
Sep 2022 - May 2023
9 months

Full-Stack-Developer

AuA24 AG

  • Developed an innovative software solution in the field of occupational health and safety.
  • Planned and implemented autonomous subsystems using test-driven development.
  • Ensured seamless interaction with the existing ecosystem.
  • Built complex features based on Laravel 10 and Angular 15.
Mar 2022 - Apr 2023
1 year 2 months
Saarbrücken, Germany

Full-Stack-Developer

IT system house based in Saarbrücken with over 20 years of IT experience

  • Enhanced existing products in both backend and frontend areas.
  • Made specific customizations for Shopware to meet evolving e-commerce requirements.
Jan 2020 - Dec 2021
2 years

Backend-Core-Developer / Interim Lead-Dev

Leading online retailer in Germany & Europe

  • Improved the existing checkout process.
  • Implemented new features, including integration of Payback and expanded payment options.
  • Co-led and coordinated a development team to meet deadlines.
Jan 2019 - Dec 2019
1 year
Saarbrücken, Germany

Frontend-Developer

IT service provider from Saarbrücken with over 20 years of IT experience

  • Further development of a React application.
  • Optimizing usability and implementing new features.
  • Improving performance and functionality to boost overall performance.
Jan 2018 - Dec 2018
1 year

Frontend-Developer

Blackbit digital Commerce GmbH

  • Implementation of several e-commerce platforms.
  • Development of responsive user interfaces.
  • Implementation of user-friendly features for a smooth shopping experience.
  • Collaboration with designers and backend developers to deliver high-quality, scalable solutions.
Jan 2017 - Dec 2018
2 years

Full-Stack-Developer

Large German telecommunications provider

  • Planning and implementation of one of the largest internal order visualization projects.
  • Collaboration with stakeholders for requirements analysis and development of technical solutions.
Jan 2014 - Dec 2019
6 years

Lead Developer

Behind you GmbH

  • Leadership and coordination of development projects in various areas.
  • Planning, execution, and monitoring of software projects to meet customer requirements and ensure timely delivery.
  • Expanding the service offering and exploring new business opportunities through proactive engagement.

Summary

My way of working is analytical and results-oriented. I question obvious approaches and strive for the optimal solution. High quality in my daily work as well as open and honest communication with colleagues and customers is my top priority.

I work, think and act with full focus on the larger goal. I can draw on extensive experience in project planning, implementation, project management as well as customer care and consulting.

Classical project management methods are just as familiar to me as agile approaches. In doing so, I like to adapt to practiced methods, always with the aim of demonstrating improvements. What's right is what works.

Skills

  • Critical

  • Analytical Thinking

  • Quick Comprehension

  • High Quality Awareness

  • High Willingness To Learn And Improve

  • Open, Understandable And Direct Communication

  • More Than Ten Years Of Programming And Project Experience

  • Backend- And Frontend Languages: Php, Typescript, Html, Css

  • Frameworks: Laravel, Laminas, Phpunit, React, Vue.js, Express.js, Angular

  • Frontend-stack: Less, Sass, Webpack, Gulp

  • Cms & E-commerce Platforms: Wordpress, Joomla, Magento, Shopware, Xt:commerce

  • Other: Ci/cd, Docker, Test-driven-development

  • Ihk Certified Trainer For It Specialists

Languages

German
Native
English
Advanced

Certifications & licenses

IHK Certified Trainer for IT Specialists

IHK

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