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Hi, I’m Arthur Joseph Kinyanjui, a Full-Stack Developer and DevOps Engineer based in Nairobi, Kenya. I design and deliver scalable enterprise applications, APIs, and mobile solutions using Angular, Spring Boot, Node.js, Django, and cloud-ready microservices. I’m a collaborative team player in Agile environments, with proven success integrating payment systems, automating financial workflows, and building secure, high-performance web and mobile experiences. I enjoy turning complex problems into user-friendly software and continuously learning new technologies.…Hi, I’m Arthur Joseph Kinyanjui, a Full-Stack Developer and DevOps Engineer based in Nairobi, Kenya. I design and deliver scalable enterprise applications, APIs, and mobile solutions using Angular, Spring Boot, Node.js, Django, and cloud-ready microservices. I’m a collaborative team player in Agile environments, with proven success integrating payment systems, automating financial workflows, and building secure, high-performance web and mobile experiences. I enjoy turning complex problems into user-friendly software and continuously learning new technologies.

Arthur Joseph Kinyanjui

Back-End Developer, Full Stack Developer, Front-End Developer, +2

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Hi, I’m Arthur Joseph Kinyanjui, a Full-Stack Developer and DevOps Engineer based in Nairobi, Kenya. I design and deliver scalable enterprise applications, APIs, and mobile solutions using Angular, Spring Boot, Node.js, Django, and cloud-ready microservices. I’m a collaborative team player in Agile environments, with proven success integrating payment systems, automating financial workflows, and building secure, high-performance web and mobile experiences. I enjoy turning complex problems into user-friendly software and continuously learning new technologies.…Hi, I’m Arthur Joseph Kinyanjui, a Full-Stack Developer and DevOps Engineer based in Nairobi, Kenya. I design and deliver scalable enterprise applications, APIs, and mobile solutions using Angular, Spring Boot, Node.js, Django, and cloud-ready microservices. I’m a collaborative team player in Agile environments, with proven success integrating payment systems, automating financial workflows, and building secure, high-performance web and mobile experiences. I enjoy turning complex problems into user-friendly software and continuously learning new technologies.

Available to hire

Hi, I’m Arthur Joseph Kinyanjui, a Full-Stack Developer and DevOps Engineer based in Nairobi, Kenya. I design and deliver scalable enterprise applications, APIs, and mobile solutions using Angular, Spring Boot, Node.js, Django, and cloud-ready microservices.

I’m a collaborative team player in Agile environments, with proven success integrating payment systems, automating financial workflows, and building secure, high-performance web and mobile experiences. I enjoy turning complex problems into user-friendly software and continuously learning new technologies.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Mobile App Developer at VapTech Solutions

November 30, 2022 - October 7, 2025

Mobile application development using Flutter with BLoC state management, building enterprise-grade apps including salesman tracking, POS management, HR integration, and e-commerce platforms with Google Maps for delivery/route tracking and a React web dashboard. Designed mobile solutions to track sales, monitor salesmen, process/manage orders, handle payments, purchase goods, and manage staff with leave tracking and service requests. Developed a Django-based license monitoring platform for desktop applications. Integrated Odoo, QuickBooks, and Tally ERP systems with KRA TIMS/ETR devices, including developing custom code for specific ETR devices using Python, C#, and XML.

Application Developer at KCB Bank

November 1, 2022 - Present

Built and deployed scalable Spring Boot microservices and Angular dashboards, including a check-off loan approval workflow integrating APIs with an Angular admin portal for loan automation, customer payments, and reporting. Automated temporary credit card limit notifications via Spring Boot + ActiveMQ. Developed and integrated an international money transfer receiver service with PAPSS on Corporate FT Payments, strengthening cross-border transaction capabilities and compliance with AML checks. Integrated the new KCB Simba system with GH2H services to improve customer billing and expand supported payment methods. Implemented Azure Git for version control and set up CI/CD pipelines in Azure DevOps to streamline builds, testing, and deployments. Supported containerized deployments and scaling using OpenShift for enterprise applications.

Mobile App Developer at VapTech Solutions

November 1, 2022 - October 7, 2025

Worked as a mobile application developer using Flutter with BLoC state management, building enterprise-grade apps including salesman tracking, POS management, HR integration, and e-commerce platforms with Google Maps for delivery/route tracking and a React web dashboard. Designed mobile solutions to track sales, monitor salesmen, process/manage orders, handle payments, purchase goods, and manage staff with leave tracking and service requests. Developed a Django-based license monitoring platform for desktop applications. Integrated Odoo, QuickBooks, and Tally ERP systems with KRA TIMS/ETR devices, including developing custom code for specific ETR devices using Python, C#, and XML.

Application Developer at KCB Bank

November 1, 2022 - Present

Built and deployed scalable Spring Boot microservices and Angular dashboards, including a check-off loan approval workflow integrating APIs with an Angular admin portal for loan automation, customer payments, and reporting. Automated temporary credit card limit notifications via Spring Boot + ActiveMQ. Developed and integrated an international money transfer receiver service with PAPSS on Corporate FT Payments, strengthening cross-border transaction capabilities and AML compliance checks. Integrated the KCB Simba system with GH2H services to improve customer billing and expand supported payment methods. Implemented Azure Git for version control and set up CI/CD pipelines in Azure DevOps to streamline builds, testing, and deployments. Supported containerized deployments and scaling using OpenShift for enterprise applications.

Mobile App Developer at VapTech Solutions

November 1, 2022 - October 7, 2025

Application Developer at KCB Bank

November 1, 2022 - Present

Built and deployed scalable Spring Boot microservices and Angular dashboards, including a check-off loan approval workflow integrating APIs with an Angular admin portal for loan automation, customer payments, and reporting. Automated temporary credit card limit notifications via Spring Boot + ActiveMQ. Developed and integrated an international money transfer receiver service with PAPSS on Corporate FT Payments, strengthening cross-border transaction capabilities and AML checks. Integrated the new KCB Simba system with GH2H services to improve customer billing and expand supported payment methods. Implemented Azure Git for version control and set up CI/CD pipelines in Azure DevOps to streamline builds, testing, and deployments. Supported containerized deployments and scaling using OpenShift for enterprise applications.

Mobile App Developer at VapTech Solutions

November 1, 2022 - October 7, 2025

Worked as a mobile application developer using Flutter with BLoC state management, building enterprise-grade apps including salesman tracking, POS management, HR integration, and e-commerce platforms with Google Maps for delivery/route tracking and a React web dashboard. Designed mobile solutions to track sales, monitor salesmen, process/manage orders, handle payments, purchase goods, and manage staff with leave tracking and service requests. Developed a Django-based license monitoring platform. Integrated Odoo, QuickBooks, and Tally ERP systems with KRA TIMS/ETR devices, including developing custom code for specific ETR devices using Python, C#, and XML.

Application Developer at KCB Bank

November 1, 2022 - Present

Built and deployed scalable Spring Boot microservices and Angular dashboards, including a check-off loan approval workflow with APIs for loan automation, customer payments, and reporting. Automated temporary credit card limit notifications via Spring Boot + ActiveMQ. Integrated an international money transfer receiver service with PAPSS on Corporate FT Payments, strengthening cross-border capabilities and AML checks. Integrated the KCB Simba system with GH2H services to improve billing and expand payment methods. Implemented Azure Git-based version control and CI/CD pipelines in Azure DevOps to streamline builds, testing, and deployments. Supported containerized deployments and scaling using OpenShift for enterprise applications.

Mobile App Developer at VapTech Solutions

November 1, 2022 - October 7, 2025

Worked as a mobile app developer using Flutter with BLoC state management, building enterprise-grade apps including salesman tracking, POS management, HR integration, and e-commerce platforms with Google Maps for delivery/route tracking and a React web dashboard. Designed mobile solutions to track sales, monitor salesmen, process/manage orders, handle payments, purchase goods, and manage staff with leave tracking and service requests. Developed a Django-based license monitoring platform. Integrated Odoo, QuickBooks, and Tally ERP systems with KRA TIMS/ETR devices, including developing custom code for specific ETR devices using Python, C#, and XML.

Application Developer at KCB Bank

November 1, 2022 - Present

Built and deployed scalable Spring Boot microservices and Angular dashboards, including a check-off loan approval workflow with API integrations for loan automation, customer payments, and reporting. Automated temporary credit card limit notifications via Spring Boot + ActiveMQ. Integrated an international money transfer receiver service with PAPSS for cross-border payments and AML checks. Connected the KCB Simba system with GH2H services to improve customer billing and expand supported payment methods. Set up Azure Git for version control and CI/CD in Azure DevOps. Supported containerized deployments with OpenShift for enterprise applications.

Full-Stack Developer at Freelance

January 1, 2019 - Present

Delivered healthcare website maintenance (cPanel, WordPress). Built E-commerce platform (MERN stack + Native Android) for UK client. Developed chat & video mobile app (Java, Android) with smart business system integration. Prototyped series notification & video streaming feature in Android Native Java.

Full-Stack Developer at Freelance

January 1, 2019 - Present

Delivered healthcare website maintenance (cPanel, WordPress). Built an e-commerce platform (MERN stack + native Android) for a UK client. Developed chat & video mobile app (Java, Android) with smart business system integration. Prototyped series notification & video streaming features in Android native Java.

Freelance – Full-Stack Developer at Freelance

January 1, 2019 - Present

Freelance – Full-Stack Developer at Freelance

January 1, 2019 - Present

Delivered healthcare website maintenance (cPanel, WordPress). Built an e-commerce platform (MERN stack + Native Android) for UK client. Developed chat & video mobile app (Java, Android) with smart business system integration. Prototyped series notification & video streaming feature in Android.

Freelance – Full-Stack Developer at Freelance

January 1, 2019 - Present

Delivered healthcare website maintenance (cPanel, WordPress). Built an e-commerce platform (MERN stack + native Android) for a UK client. Developed chat & video mobile app (Java, Android) with smart business system integration. Prototyped notification and video streaming features in Android-native Java.