Freelancer profile translated to English.
Back to original languageAbout Lukas
I am a Senior Full-Stack Developer with over ten years of experience in implementing business-critical software for enterprise clients (e.g., Mercedes-Benz and Fraport) as well as for startups (e.g., Colormass and Playerdash).
I combine practical full-stack development (TypeScript, Angular, React, Node.js, GraphQL, AWS, and GCP) with technical leadership of up to ten developers and architectural responsibility.
Whether for greenfield projects, legacy modernization, cloud migration, or as a productive team member – I deliver added value from day one. I strategically leverage AI to multiply my productivity.
German
Native or bilingual
English
Fluent
Can work on-site
Berlin (up to 50km)
Experience
- OSKBerlin GmbHFull-Stack, Technical Lead and ArchitectPRESS AND MEDIAFebruary 2017 - February 2023 (6 years)Berlin, Germany
- Contributed to Mercedes-Benz's global media and PR platform for 6 years; started as a developer for CIAM integration, taking over as technical lead and project manager from 2021.
- Technical leadership of 6-10 developers, including nearshore teams in a later phase; architecture, code review, mentoring, and delivery.
- Built the CI/CD pipeline for fast and secure deployments; consistently passed regular EPA security audits without critical findings.
- Developed a multi-angle livestream player with live transcription for press events with up to 100,000 viewers; secure embargoed access to pre-release content for selected journalists.
- Maintained the native Android (Kotlin) and iOS (Swift) apps for managing journalist drive events after the departure of the original mobile developers.
TypeScript · JavaScript · Angular · Node.js · PHP · Laravel · Drupal · Solr · Kotlin · Swift · Android · iOS · HTML5 · CSS3 · SCSS · REST · CIAM · OAuth2 · OpenID Connect · Azure · Docker · CircleCI · Jenkins · CI/CD · Live Streaming · Git · Agile · Scrum · Code Review · Mentoring - Colormass GmbHSenior Full-Stack DeveloperSOFTWARE PUBLISHINGJuly 2024 - May 2026 (1 year and 10 months)Berlin, Germany
- Reduced cloud infrastructure costs by 20% and increased performance of embeddable components by 50% through targeted optimization.
- Rolled out Stripe billing and subscription management into production – the foundation for recurring revenue and self-service onboarding.
- Implemented AI-powered image classification of materials using Google Gemini and Vision AI; replaced manual tagging.
- Built automation tools for Windows-based rendering workloads, reducing manual operator effort.
Angular · TypeScript · JavaScript · Web Components · RxJS · HTML5 · CSS3 · SCSS · GraphQL · REST · Node.js · Stripe · Google Gemini · Google Vision AI · GCP · Docker · CI/CD · Git - PlayerdashFull-Stack DeveloperSOFTWARE PUBLISHINGJanuary 2020 - May 2026 (6 years and 4 months)Berlin, Germany
- Developed and operated a PWA in production, used by around 600 sports clubs for training materials and individual dashboards.
- Implemented a league-wide video exchange feature with multi-angle playlists and highlight clips, used in production across 10 leagues.
- Onboarded and mentored a junior developer who took over project responsibility.
React · Next.js · TypeScript · JavaScript · tRPC · D3 · HTML5 · CSS3 · Node.js · SQLite · Terraform · Ansible · Hetzner · Docker · CI/CD · PWA · Git
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Education
- Computer Science B.Sc.TU Berlin2017