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Chris-Robin EnnenCE

Chris-Robin Ennen

Full-Stack Developer

€740/day
Stuttgart, DE
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Chris-Robin

I support companies in reliably building, developing, and deploying complex web platforms. My focus is on full-stack development, technical architecture, frontend, backend, data models, search, CI/CD, deployment, and monitoring.

I am particularly strong in projects where not only implementation but also technical responsibility is required: understanding existing systems, refining requirements, making architectural decisions, and delivering pragmatic solutions. I routinely use AI tools for research, prototyping, refactoring, testing, and documentation, always with thorough technical review.

Typical projects include SaaS and platform development, internal tools, data-driven web applications, migrations, performance improvements, and technical modernization. I also support teams through code reviews, mentoring, and clear technical communication.
  • German

    Native or bilingual

  • English

    Fluent

Can work on-site
Stuttgart (up to 20km)

Experience

  • App Innovators GmbH
    Full-Stack Developer
    SOFTWARE PUBLISHING
    December 2025 - Today (8 months)
    Stuttgart, Germany
    • Led the greenfield development of land.immo, a Nuxt/MongoDB real estate platform for selling and renting properties, covering architecture, full-stack implementation, SEO, analytics, deployment, and documentation.
    • Built core property workflows including ownership changes, rental availability periods, and an in-platform chat with dynamic actions such as accepting or rejecting offers.
    • Set up GitLab CI/CD, Docker image builds, and Coolify-based deployment, while collaborating on geodata integration and mentoring a junior/mid-level freelancer through PR reviews and technical feedback.
    Node.js Vue.js Software Architecture Coolify
  • VelpTEC GmbH
    Lecturer for Software Development
    EDUCATION AND E-LEARNING
    August 2023 - Today (3 years)
    Stuttgart, Germany
    • Work as a workshop instructor for live one-on-one technical training, helping beginners and career changers build practical skills in Linux, Git/GitHub, web development, app development, and DevOps.
    • Deliver hands-on sessions across React, Next.js, Vue, Flutter, Kotlin, command-line tooling, version control, and deployment fundamentals using guided exercises and practical examples.
    • Adapt prepared training material during sessions, providing individualized explanations, troubleshooting support, and real-time feedback based on each participant’s progress.
    Teaching
  • LexMea GmbH
    Full-Stack Developer and Shareholder
    SOFTWARE PUBLISHING
    October 2020 - Today (5 years and 10 months)
    Stuttgart, Germany
    • Acted as lead full-stack developer and technical owner for lexmea.de, a legal tech platform used by students, universities, and lawyers to work interactively with German federal and state law, European law, and international legal texts.
    • Built and evolved the platform across frontend, backend, data model, infrastructure, search, permissions, PDF generation, analytics, monitoring, and deployment over six years, using Vike, Laravel, MySQL, Redis, Elasticsearch, Coolify, GitHub Actions, and Sentry.
    • Designed and implemented ingestion pipelines that convert XML, Markdown, JSON, and HTML legal sources into a custom structured database format, enabling features such as highlighting, notes, versioning, and comparison of legal texts.
    • Led major technical migrations including JavaScript to TypeScript, SPA to SSR with Vike, and infrastructure moves from Docker Compose to AWS EKS and later Coolify to reduce operating costs.
    • Coordinated work with freelancers and legal-domain founders, reviewing implementation work, aligning technical decisions with legal content requirements, and maintaining the platform serving 6,000+ registered users and 60,000+ monthly visitors.
    Typescript Laravel Coolify SQL Vue.js

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Education

  • Media Informatics (B.Sc.)
    Hochschule der Medien
    2025
    Medieninformatik (B.Sc.)
  • Training as an IT specialist for application development
    Robert Bosch GmbH
    2019
    Ausbildung zum Fachinformatiker für Anwendungsentwicklung

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