I am a proactive full-stack engineer based in Duisburg, Germany, passionate about building high-performance, user-centric web applications. I work with JavaScript/TypeScript, React, Next.js, Node.js, and container technologies (Docker and Kubernetes) to deliver robust, scalable software. I thrive in cross-functional teams and enjoy shaping architecture, writing clean code, and shipping features that win real users' trust. Over the years I’ve led teams and collaborated with product managers and engineers across several projects for clients like Amadeus Germany, AIDA Cruises, and other B2B platforms. I value code quality, testing, and UX performance, and I routinely participate in code reviews, pair programming, and Agile development practices to drive measurable improvements and timely delivery.

Obo Khuai Ehimika

I am a proactive full-stack engineer based in Duisburg, Germany, passionate about building high-performance, user-centric web applications. I work with JavaScript/TypeScript, React, Next.js, Node.js, and container technologies (Docker and Kubernetes) to deliver robust, scalable software. I thrive in cross-functional teams and enjoy shaping architecture, writing clean code, and shipping features that win real users' trust. Over the years I’ve led teams and collaborated with product managers and engineers across several projects for clients like Amadeus Germany, AIDA Cruises, and other B2B platforms. I value code quality, testing, and UX performance, and I routinely participate in code reviews, pair programming, and Agile development practices to drive measurable improvements and timely delivery.

Available to hire

I am a proactive full-stack engineer based in Duisburg, Germany, passionate about building high-performance, user-centric web applications. I work with JavaScript/TypeScript, React, Next.js, Node.js, and container technologies (Docker and Kubernetes) to deliver robust, scalable software. I thrive in cross-functional teams and enjoy shaping architecture, writing clean code, and shipping features that win real users’ trust.

Over the years I’ve led teams and collaborated with product managers and engineers across several projects for clients like Amadeus Germany, AIDA Cruises, and other B2B platforms. I value code quality, testing, and UX performance, and I routinely participate in code reviews, pair programming, and Agile development practices to drive measurable improvements and timely delivery.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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Language

English
Fluent
German
Advanced
Vietnamese
Fluent

Work Experience

Senior Frontend Engineer (Full Time) at ProQuest Computersysteme (AirQuest) GmbH
January 1, 2022 - Present
Led the frontend team developing new web applications for B2B customers including Amadeus Germany GmbH, AIDA Cruises, Alltours Flugreisen GmbH, Costa Kreuzfahrten, TUI Cruises GmbH, Schauinsland-Reisen GmbH, and DER Touristik Deutschland GmbH using JavaScript, ReactJS/NextJS, Tailwind CSS, Node.js, TypeScript, Redux and Zustand. Collaborated with Java Spring Boot backend team resulting in a 30% faster response time compared to the previous system. Held Scrum meetings to discuss new features with project managers and team members, participated in code reviews, pair programming, and agile development methods. Maintained code quality through rigorous testing and debugging using Jest and Cypress, reducing bugs by 15%. Utilized Docker to ensure consistent development and testing environments. Demonstrated strong cross-functional collaboration and effective management of multiple concurrent projects and tasks.
Frontend Engineer Freelancer at Praxis Ameti
December 1, 2021 - August 18, 2025
Designed company web applications using ReactJS/NextJS, Redux, Node.js, and JavaScript/TypeScript improving user engagement by 25%. Streamlined the interface improving usability scores by 20% based on user feedback and analytics. Redesigned the frontend of Praxis Ameti hospital apps applying modern, responsive UI principles, leading to a 30% increase in returning users. Improved website speed by 25%, reducing load times to under 3 seconds and increasing conversions by 15%.
Frontend Software Developer at Melisoft
February 1, 2021 - August 18, 2025
Redesigned company's web presentation layer using NextJs/React, TypeScript, HTML and CSS achieving a 40% reduction in bounce rates and a 20% increase in user engagement time. Optimized front-end performance by reducing page load times through advanced JavaScript techniques, enhancing speed by 30%.
Frontend Engineer (Remote) at OlkiTech Developments
March 1, 2019 - August 18, 2025
Resolved tickets to improve web application functionality using JavaScript, Vue.js, HTML, CSS, and Node.js in collaboration with UX/UI designers, resulting in a 25% increase in user engagement.
Full Stack Software Developer at FPT Software
August 1, 2017 - August 18, 2025
Crafted and developed backend and frontend applications. Gained substantial experience in microservices architecture and developing client applications using JavaScript technologies and different content management solutions. Refined skills in creating scalable and efficient solutions in complex environments.
JavaScript Developer at VietED
January 1, 2016 - August 18, 2025
Collaborated with UX/UI designers to create visually appealing and user-friendly web applications using JavaScript, Angular, HTML, and CSS, resulting in a 25% increase in user engagement.
Senior Frontend Engineer (Full Time) at ProQuest Computersysteme (AirQuest) GmbH
January 1, 2022 - Present
Led the frontend team in developing new web applications for B2B customers including Amadeus Germany GmbH, AIDA Cruises, Alltours Flugreisen GmbH, Costa Kreuzfahrten, TUI Cruises GmbH, Schauinsland-Reisen GmbH, and DER Touristik Deutschland GmbH. Utilized JavaScript, ReactJS/NextJS, Tailwind CSS, Node.js, TypeScript, Redux, and Zustand. Collaborated with Java Spring Boot backend team to improve response time by 30%. Conducted Scrum meetings, code reviews, pair programming, and maintained code quality using Jest and Cypress with a 15% bug reduction. Used Docker for development and testing environments. Demonstrated strong cross-functional collaboration and project management skills.
Frontend Engineer / Freelance Software Developer at Praxis Ameti
December 31, 2021 - August 18, 2025
Designed the company web application using ReactJS/NextJS, Redux, Node.js, JavaScript/TypeScript, improving user engagement by 25%. Streamlined the interface, improving usability scores by 20% based on user feedback and analytics. Redesigned the frontend of Praxis Ameti hospital applying modern, responsive UI principles, resulting in a 30% increase in returning users. Improved website speed by 25%, reducing load times to under 3 seconds, leading to a 15% increase in conversions.
Frontend Software Developer at Melisoft
February 28, 2021 - August 18, 2025
Redesigned the company's web presentation layer using Next.js/React, TypeScript, HTML, and CSS achieving a 40% reduction in bounce rates and a 20% increase in user engagement time. Optimized front-end performance by reducing page load times using advanced JavaScript techniques, enhancing speed by 30%.
Frontend Engineer at OlkiTech Developments
March 1, 2019 - August 18, 2025
Resolved tickets to improve web application functionality using JavaScript, Vue.js, HTML, CSS, and Node.js in collaboration with UX/UI designers resulting in a 25% increase in user engagement.
Full Stack Software Developer at FPT Software
August 1, 2017 - August 18, 2025
Crafted and developed backend and frontend applications, gained substantial experience in microservices architecture and client applications using JavaScript technologies and different content management solutions. Enhanced skills in creating scalable and efficient solutions in complex environments.
JavaScript Developer at VietED
January 31, 2016 - August 18, 2025
Collaborated with UX/UI designers to create visually appealing and user-friendly web applications using JavaScript, Angular, HTML, and CSS resulting in a 25% increase in user engagement.
Senior Frontend Engineer (Full Time) at ProQuest Computer System e (Air Quest) GmbH
January 1, 2022 - Present
Led the frontend team in developing B2B web applications for Amadeus Germany GmbH, AIDA Cruises, Alltours Flugreisen GmbH, Costa Kreuzfahrten, TUI Cruises GmbH, Schauinsland-Reisen GmbH, and DER Touristik Deutschland GmbH using React/Next.js, TypeScript, Tailwind CSS, Redux, Zustand with a Java Spring Boot backend; achieved 30% faster response times measured with New Relic. Held Scrum meetings with project managers and team members to discuss new features. Participated in code reviews, pair programming, and agile software development methods. Maintained code quality through robust testing and debugging using Jest and Cypress, reducing bugs by 15% per Jira tracking. Used Docker to ensure consistent development environments. Collaborated with experts, managing multiple projects and tasks.
Frontend Engineer at Praxis Ameti
December 1, 2021 - September 12, 2025
Designed the company web application using ReactJS/NextJS, Redux, Node.js, and TypeScript/JavaScript, improving user engagement by 25% as measured by Google Analytics. Optimized the interface, raising usability scores by 20% (internal UX testing and Mixpanel). Improved the frontend of the Praxis Ameti hospital app with a responsive UI design, increasing returning users by 30% per Firebase Analytics.
Frontend Software Developer at MeliSoft
February 1, 2021 - September 12, 2025
Improved the company's web UI with Next.js/React, HTML and CSS, reducing bounce rates by 40% and increasing engagement by 20% via Google Analytics. Optimized frontend with advanced JavaScript, boosting speed 30% via Lighthouse.
Frontend Engineer at OlkiTech Developments (Remote)
March 1, 2019 - September 12, 2025
Resolved tickets to improve web application functionality using JavaScript, Vue.js, HTML and CSS, and Node.js in collaboration with UX/UI designers, resulting in a 25% increase in user engagement per Mixpanel.
Full Stack Software Developer at FPT Software
August 1, 2017 - September 12, 2025
At FPT Software, built full-stack apps with microservices using JavaScript, including content management systems, strengthening capabilities in scalable development.
Javascript Developer at VietED
January 1, 2016 - September 12, 2025
Collaborated with UX/UI designers to create visually appealing and user-friendly web applications using JavaScript, Angular, HTML, CSS, achieving a 25% increase in user engagement as tracked in Google Analytics.
Senior Frontend Engineer (Full Time) at ProQuest Computer Systems GmbH
January 1, 2022 - Present
Led the frontend team in developing B2B web applications for Adidas Germany GmbH, AIDA Cruises, Alltours Flugreisen GmbH, Costa Kreuzfahrten, TUI Cruises, Schauinsland-Reisen GmbH, and DER Touristik Deutschland. Built high-performance, user-centric interfaces with React/Next.js, TypeScript, and modern tooling. Collaborated with product and design teams to shape UX, implemented rigorous testing practices, and mentored junior developers. Drove containerized deployment and CI/CD workflows using Docker and Kubernetes to ensure scalable, reliable releases.
Senior Frontend Engineer at Praxis Ameti
December 1, 2021 - October 2, 2025
Freelance Software Developer delivering frontend solutions using ReactJS, NextJS, Redux, Node.js, and TypeScript. Designed and implemented a company web application, improved engagement and performance, and contributed to code reviews and collaboration with stakeholders.
Frontend Software Developer at Melisoft
February 1, 2021 - October 2, 2025
Frontend software developer focusing on React/Next.js, TypeScript, HTML/CSS, and UI improvements to boost usability and performance. Enhanced the company's web UI and integrated with backend services to deliver robust features.
Full Stack Software Developer at FPT Software
February 1, 2019 - October 2, 2025
Full-stack development with microservices, JavaScript/TypeScript, ReactJS, Node.js, and related tech stack. Contributed to building scalable web applications and improving deployment pipelines.
JavaScript Developer at Freelance
January 1, 2016 - October 2, 2025
Frontend development work for various clients, focusing on responsive UI and client-side performance improvements.
Full Stack Software Developer at FPT Software
February 1, 2019 - October 2, 2025
Built full-stack apps with microservices and JavaScript, including content management systems, strengthening scalable development skills.
Frontend Software Developer at MeliSoft
February 1, 2021 - October 2, 2025
Improved the company’s web UI using React/Next.js, TypeScript, HTML and CSS, reducing bounce rate and increasing engagement.
Senior Frontend Engineer at Praxis Ameti (Freelance Software Developer)
December 1, 2021 - October 2, 2025
Led frontend development efforts on multiple projects, focusing on performance and scalable UI components.
Senior Frontend Engineer (Full Time) at ProQuest Computer Systeme (AirQuest) GmbH
January 1, 2022 - Present
Led the frontend team in developing B2B web applications for Adidas Germany, AIDA Cruises, Alltours, Costa Kreuzfahrten, TUI Cruises, and more; utilized React/NEXT.js, TypeScript, Tailwind CSS; collaborated with backend team to achieve a ~30% faster response time as measured by New Relic.
Senior Full-Stack Engineer (Full Time) at ProQuest Computersysteme (AirQuest) GmbH
January 1, 2022 - November 3, 2025
Led the team in developing B2B web applications for Amadeus Germany GmbH, AIDA Cruises, Alltours, and related projects; drove architectural decisions and ensured timely delivery.
Senior Frontend Engineer at Praxis Ameti (Freelance Software Developer)
December 1, 2021 - December 1, 2021
Designed and implemented frontend for B2B web applications using React/Next.js, TypeScript, Tailwind CSS; contributed to UI/UX improvements and performance gains (approx. +25% user engagement).
Frontend Software Developer at MeliSoft
February 1, 2021 - February 1, 2021
Improved the company's web UI using Next.js/React, TypeScript, HTML, and CSS; reduced bounce rate by ~40% and increased engagement via improved UX.
Full-Stack Software Developer at FPT Software
February 1, 2019 - February 1, 2019
Built full-stack applications with microservices and JavaScript; worked on content management systems and broader web solutions, enhancing development capabilities.
JavaScript Developer at VietED
January 1, 2016 - January 1, 2016
Contributed as a JavaScript Developer, delivering web applications using core JS, HTML, and CSS; collaborated with UX/UI teams to ship user-friendly interfaces.

Education

Master's degree in Communication and Information Engineering at University of Bremen
January 1, 2024 - August 18, 2025
Communication and Information Engineering at Rhine-Waal University of Applied Sciences
October 1, 2019 - November 1, 2023
Master's degree in Software Engineering at FPT University
January 1, 2016 - November 1, 2018
Bachelor's degree in Electrical & Electronic Engineering at Ambrose Alli University
September 1, 2008 - April 1, 2013
Master's degree in Communication and Information Engineering at University of Bremen
January 1, 2024 - December 31, 2024
Communication and Information Engineering at Rhine-Waal University of Applied Sciences
October 1, 2019 - November 1, 2023
Master's degree in Software Engineering at FPT University
January 1, 2016 - November 1, 2018
Bachelor's degree in Electrical & Electronic Engineering at Ambrose Alli University
September 1, 2008 - April 1, 2013
Master’s degree in Communication and Information Engineering at University of Bremen
January 11, 2030 - January 1, 2024
Master’s degree in Communication and Information Engineering at Rhine-Waal University of Applied Sciences
October 1, 2019 - November 1, 2023
Master’s degree in Software Engineering at FPT University
January 1, 2016 - November 1, 2018
Bachelor’s degree in Electrical & Electronic Engineering at Ambrose Alli University
September 1, 2008 - April 1, 2013
Master's degree in Communication and Information Engineering at University of Bremen
January 1, 2024 - October 2, 2025
Master's degree in Communication and Information Engineering at Rhine-Waal University of Applied Sciences, Kamp-Lintfort
October 1, 2019 - November 1, 2023
Master's degree in Software Engineering at FPT University, Hanoi
January 1, 2016 - November 1, 2018
Bachelor's degree in Electrical & Electronics Engineering at Ambrose Alli University, Ekpoma
September 1, 2008 - April 1, 2013
Bachelor's degree in Electrical & Electronic Engineering at Ambrose Alli University
September 1, 2008 - April 1, 2013
Master's degree in Software Engineering at FPT University
January 1, 2016 - January 1, 2018
Master's degree in Communication and Information Engineering at Rhine-Waal University of Applied Sciences
January 1, 2019 - January 1, 2023
Master's degree at University of Bremen
January 1, 2024 - October 2, 2025
Master's degree in Communication and Information Engineering at University of Bremen
January 1, 2024 - November 3, 2025
Master's degree in Software Engineering at FPT University
January 1, 2016 - November 1, 2018
Bachelor's degree in Electrical & Electronic Engineering at Ambrose Alli University
September 1, 2008 - April 1, 2013
Master's degree in Communication and Information Engineering at Rhine-Waal University of Applied Sciences
October 1, 2019 - November 1, 2023

Qualifications

SAP Phishing and Social Engineering
January 11, 2030 - August 18, 2025
SAP Phishing and Social Engineering - WBT
January 11, 2030 - August 18, 2025
SAP Phishing and Social Engineering - WBT
January 11, 2030 - September 12, 2025
SAP Phishing and Social Engineering - WBT
January 11, 2030 - October 2, 2025
SAP Phishing and Social Engineering - WBT
January 11, 2030 - October 2, 2025
SAP Phishing and Social Engineering - WBT
January 11, 2030 - November 3, 2025

Industry Experience

Computers & Electronics, Healthcare, Software & Internet, Travel & Hospitality, Professional Services, Education, Media & Entertainment