Arnold Abraham - Senior Full Stack Developer

Q: Where is Arnold based?

Arnold is based in Wermelskirchen, Germany .

Q: What languages does Arnold speak?

Arnold speaks the following languages: German (Advanced), English (Advanced) .

Q: How many years of experience does Arnold have?

Arnold has at least 5 years of experience. During this time, Arnold has worked in at least 5 different roles and for 5 different companies . The average length of individual experience is 1 year and 11 months . Note that Arnold may not have shared all experience and actually has more experience.

Q: What is Arnold's latest experience?

Arnold's most recent position is Senior Full Stack Developer – Full Stack Focus at Endress+Hauser GmbH+Co. KG .

Q: What companies has Arnold worked for in recent years?

In recent years, Arnold has worked for Endress+Hauser GmbH+Co. KG , SICK AG , RTL - Cologne Broadcasting Center (via Actcon IT Solutions) , and RTL - Cologne Broadcasting Center (via Job-Active GmbH) .

Q: Which industries is Arnold most experienced in?

Arnold is most experienced in industries like Automotive , Media, Entertainment and Publishing , and Manufacturing .

Q: Which business areas is Arnold most experienced in?

Arnold is most experienced in business areas like Product Development , Information Technology (IT) , and Quality Assurance (QA) .

Q: What is Arnold's education?

Arnold holds a Bachelor in Electrical Engineering from Westsächsische Hochschule Zwickau and a Bachelor in Engineering from Technische Hochschule Köln .

Q: Does Arnold have any certificates?

Arnold has 1 certificate : TOEIC C1 .

Recommended expert

Wermelskirchen, Germany

Experience

Jan 2025 - Jun 2025

6 months

Senior Full Stack Developer – Full Stack Focus

Endress+Hauser GmbH+Co. KG

Took over 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
Result: Successful platform modernization and a noticeably faster development pace

Oct 2023 - Jun 2024

9 months

Senior Full Stack Developer – Full Stack Focus

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 speed up secure deployments
Result: Reduced release cycles and significantly improved operational reliability

Aug 2023 - Nov 2024

1 year 4 months

Senior Full Stack Developer – Frontend Focus

RTL - Cologne Broadcasting Center (via Actcon IT Solutions)

Designed and developed a framework-agnostic video editing tool for the web
Scaled the live streaming infrastructure to ensure a highly available platform
Set up end-to-end testing and quality monitoring to secure critical deployments
Result: Reduced downtime and sustainably increased platform stability for continuous operations

Nov 2022 - Aug 2023

10 months

Senior Full Stack Developer – Backend Focus

RTL - Cologne Broadcasting Center (via Job-Active GmbH)

Built a scalable music streaming backend using Node.js, Kubernetes, and AWS
Optimized GraphQL endpoints to improve system performance and efficiency
Implemented system-wide monitoring with Grafana and Kibana for real-time oversight
Result: Improved scalability and enhanced user experience of the streaming service

Jul 2019 - Aug 2020

1 year 2 months

Master 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 months

Hardware and Firmware Developer

AVL Emission Test Systems GmbH

Developed embedded firmware (C8051) and backend systems (Node.js, Linux ARM)

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Automotive (3 years), Media and Entertainment (2 years), and Manufacturing (1 year).

Automotive

Media and Entertainment

Manufacturing

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Product Development (5.5 years), Information Technology (3.5 years), and Quality Assurance (1.5 years).

Product Development

Information Technology

Quality Assurance

Summary

Senior Full Stack Web Engineer with 10 years of experience in developing and scaling complex web and cloud solutions. Specialist in greenfield projects, architecture redesigns, cloud-native CI/CD systems, and highly available microservice platforms. I focus on pragmatic and scalable solutions. Technical author and instructor with a passion for software.

Skills

Programming Languages: Typescript, Javascript, C#, Python, Html5, Css3/sass
Frameworks & Platforms: Angular, Nestjs, Node.js, .Net Core, React, Vue.js
Cloud/devops: Aws, Azure, Kubernetes, Docker, Terraform, Microservices, Ci/cd
Testing & Quality: Jest, Jasmine, Xunit, Playwright, Cypress, Solid, Clean Code, Tdd, Refactoring
Methods & Leadership: Scrum, Kanban, Safe, Okr, Agile Coaching

Languages

German

Advanced

English

Advanced

Education

Aug 2014 - Aug 2017

Westsächsische Hochschule Zwickau

Dipl.-Ing. (FH) Electrical Engineering · Electrical Engineering · Zwickau, Germany

Aug 2012 - Aug 2014

Technische Hochschule Köln

Undergraduate studies in Engineering · Engineering · Cologne, Germany

Certifications & licenses

TOEIC C1

Profile

Created

June 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Arnold based?

Arnold is based in Wermelskirchen, Germany.

What languages does Arnold speak?

Arnold speaks the following languages: German (Advanced), English (Advanced).

How many years of experience does Arnold have?

Arnold has at least 5 years of experience. During this time, Arnold has worked in at least 5 different roles and for 5 different companies. The average length of individual experience is 1 year and 11 months. Note that Arnold may not have shared all experience and actually has more experience.

What roles would Arnold be best suited for?

Based on recent experience, Arnold would be well-suited for roles such as: Senior Full Stack Developer – Full Stack Focus, Senior Full Stack Developer – Frontend Focus, Senior Full Stack Developer – Backend Focus.

What is Arnold's latest experience?

Arnold's most recent position is Senior Full Stack Developer – Full Stack Focus at Endress+Hauser GmbH+Co. KG.

What companies has Arnold worked for in recent years?

In recent years, Arnold has worked for Endress+Hauser GmbH+Co. KG, SICK AG, RTL - Cologne Broadcasting Center (via Actcon IT Solutions), and RTL - Cologne Broadcasting Center (via Job-Active GmbH).

Which industries is Arnold most experienced in?

Arnold is most experienced in industries like Automotive, Media, Entertainment and Publishing, and Manufacturing.

Which business areas is Arnold most experienced in?

Arnold is most experienced in business areas like Product Development, Information Technology (IT), and Quality Assurance (QA).

What is Arnold's education?

Arnold holds a Bachelor in Electrical Engineering from Westsächsische Hochschule Zwickau and a Bachelor in Engineering from Technische Hochschule Köln.

Does Arnold have any certificates?

Arnold has 1 certificate: TOEIC C1.

What is the availability of Arnold?

Arnold is immediately available full-time for suitable projects.

What is the rate of Arnold?

Arnold's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.