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Hi, I’m Rajeev Siewnath, a Senior Fullstack Developer with over a decade of experience building scalable web apps and cloud infrastructure. I love turning complex problems into accessible software and collaborating with product, design, and ops teams to ship value. I’ve led Kubernetes and AWS workloads, built public TypeScript APIs with OpenAPI specs and Keycloak authentication, and designed admin platforms to streamline operations. I’m passionate about clean code, automated testing, observability, and knowledge sharing through documentation and mentoring.…Hi, I’m Rajeev Siewnath, a Senior Fullstack Developer with over a decade of experience building scalable web apps and cloud infrastructure. I love turning complex problems into accessible software and collaborating with product, design, and ops teams to ship value. I’ve led Kubernetes and AWS workloads, built public TypeScript APIs with OpenAPI specs and Keycloak authentication, and designed admin platforms to streamline operations. I’m passionate about clean code, automated testing, observability, and knowledge sharing through documentation and mentoring.

Rajeev Siewnath

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

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Hi, I’m Rajeev Siewnath, a Senior Fullstack Developer with over a decade of experience building scalable web apps and cloud infrastructure. I love turning complex problems into accessible software and collaborating with product, design, and ops teams to ship value. I’ve led Kubernetes and AWS workloads, built public TypeScript APIs with OpenAPI specs and Keycloak authentication, and designed admin platforms to streamline operations. I’m passionate about clean code, automated testing, observability, and knowledge sharing through documentation and mentoring.…Hi, I’m Rajeev Siewnath, a Senior Fullstack Developer with over a decade of experience building scalable web apps and cloud infrastructure. I love turning complex problems into accessible software and collaborating with product, design, and ops teams to ship value. I’ve led Kubernetes and AWS workloads, built public TypeScript APIs with OpenAPI specs and Keycloak authentication, and designed admin platforms to streamline operations. I’m passionate about clean code, automated testing, observability, and knowledge sharing through documentation and mentoring.

Available to hire

Hi, I’m Rajeev Siewnath, a Senior Fullstack Developer with over a decade of experience building scalable web apps and cloud infrastructure. I love turning complex problems into accessible software and collaborating with product, design, and ops teams to ship value.

I’ve led Kubernetes and AWS workloads, built public TypeScript APIs with OpenAPI specs and Keycloak authentication, and designed admin platforms to streamline operations. I’m passionate about clean code, automated testing, observability, and knowledge sharing through documentation and mentoring.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

Dutch

Fluent

English

Fluent

Swedish

Beginner

Finnish

Beginner

Work Experience

Senior Fullstack Developer at Visuado

January 1, 2022 - Present

Led Kubernetes and AWS infrastructure for scalable deployments. Built a public TypeScript API with automated OpenAPI specs and Keycloak authentication. Designed and developed an admin platform to streamline internal operations. Established CI/CD pipelines and QA tooling, and maintained observability with Grafana/Prometheus, Slack alerts, and Sentry. Managed organizational NPM libraries and async systems; authored the company wiki for documentation and onboarding; led integrations with third-party systems to enable smooth interoperability.

Senior Fullstack Developer at Inscripta

May 1, 2019 - December 1, 2021

Developed Java/Spring Boot backend and React frontends for transcription tools. Built Electron and React Native clients for desktop and mobile. Implemented WebRTC for real-time audio input/output in Node.js and web; used DraftJS to create dynamic, interactive text editing experiences.

Senior Frontend Developer at WorldSkills

March 1, 2020 - November 1, 2020

Built and modernized Angular 9 applications, migrating legacy AngularJS apps. Integrated with Java-based backends to ensure smooth data flow. Delivered responsive, user-friendly frontends for global competition tools.

Senior Fullstack Developer at Adventure Club

August 1, 2018 - May 1, 2019

Developed React and React Native clients; integrated Contentful, Flamelink, and WordPress CMS platforms. Delivered projects across independent initiatives to large collaborative platforms with scalable, cross-platform solutions.

Senior Developer at SiteDrive

August 1, 2017 - July 31, 2018

Built Java/Spring backend with GraphQL middleware. Developed React and React Native clients for web and mobile. Delivered end-to-end features across backend and frontend.

Fullstack Developer at Enevo

April 1, 2013 - July 31, 2017

Developed backend APIs in Python and PHP within a microservices architecture. Built React, React Native, and AngularJS clients for web and mobile. Managed MySQL and MongoDB databases for scalable solutions.

Founder / CTO at Collaplan

January 1, 2014 - January 1, 2024

Built a collaborative urban planning platform with Laravel/Lumen backend APIs and React web clients. Managed MySQL databases, integrated Google Maps for geospatial features, and contributed to visualization tools with Unity 3D and C#. Implemented Docker-based development and deployment workflows.