Arnold (Dipl. ing. (fh)) Abraham
Senior Full Stack Developer
Experience
Jan 2025 - Jun 2025
6 monthsSenior Full Stack Developer – Focus on Full Stack
Endress+Hauser GmbH+Co. KG
- Took on architecture and development responsibility for a scalable web platform (Angular 18 / NestJS / AWS)
- Designed and implemented a zero-downtime CI/CD pipeline to ensure uninterrupted deployments
- Planned and migrated existing legacy features using feature toggles
- Outcome: Successful platform modernization and a noticeable increase in development speed
Oct 2023 - Jun 2024
9 monthsSenior Full Stack Developer – Focus on Full Stack
SICK AG
- Architected scalable cloud solutions on AWS to support industrial applications
- Migrated monolithic systems to a robust microservices architecture
- Built automated CI/CD pipelines to accelerate secure deployments
- Outcome: Reduced release cycles and significantly improved operational reliability
Aug 2023 - Nov 2024
1 year 4 monthsCologne, Germany
Senior Full Stack Developer – Focus on Frontend
RTL - Cologne Broadcasting Center (über Actcon IT Solutions)
- Designed and developed a framework-agnostic web-based video editing tool
- Scaled the live streaming infrastructure to ensure a highly available platform
- Established end-to-end testing and quality monitoring to secure critical deployments
- Outcome: Reduced downtime and sustainably increased platform stability for continuous use
Nov 2022 - Aug 2023
10 monthsCologne, Germany
Senior Full Stack Developer – Focus on Backend
RTL - Cologne Broadcasting Center (über Job-Active GmbH)
- Built a scalable music streaming backend using Node.js, Kubernetes, and AWS
- Optimized GraphQL endpoints to boost system performance and efficiency
- Implemented system-wide monitoring with Grafana and Kibana for real-time tracking
- Outcome: Improved scalability and enhanced user experience of the streaming service
Jul 2019 - Aug 2020
1 year 2 monthsMaster Developer Software Applications
AVL Emission Test Systems GmbH
- Architected and developed scalable software solutions (Angular, .NET Core, C#)
- Migrated to modular microservices
- Developed industrial SPAs (AVL Vita, ChargeMonitor)
Oct 2017 - Aug 2019
1 year 11 monthsHardware and Firmware Developer
AVL Emission Test Systems GmbH
- Developed embedded firmware (C8051) and backend systems (Node.js, Linux ARM)
Jan 2013 - Dec 2016
4 yearsMentor and Tutor in Mathematics and Physics
- Led tutorials and intensive courses to develop analytical skills in engineering.
Author
Medium.com
- 251 articles, over 500,000 readers – Thought Leadership in Web Development
Developer
Personal Projects
- Developed and maintained several Android apps and web tools (e.g., Check Mate Football, Geometry Idle Zen, financial comparison tool)
Instructor
Udemy
- 5 video courses, over 30,000 students – sustainable software development training
Summary
Senior Full Stack Web Engineer, Solutions Architect with 10 years of experience in designing, developing, and scaling complex, high-availability web and cloud-native applications. Proven track record in leading architecture redesigns, driving cloud migrations, and implementing CI/CD pipelines. Passionate about delivering solutions that drive business outcomes.
Languages
German
NativeEnglish
Advanced Education
Aug 2014 - Aug 2017
Westsächsische Hochschule Zwickau
Dipl.-Ing. · Electrical Engineering, focus on Automation and Systems Engineering · Zwickau, Germany
Aug 2012 - Aug 2014
Technische Hochschule Köln
Basic Engineering Sciences studies · Cologne, Germany
Certifications & licenses
TOEIC C1
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