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Hi, I’m Rafly Pradana Kusumah, a Full Stack Developer based in Bogor, Indonesia. I love building fast, secure, and scalable web and mobile applications, with hands-on experience across frontend, backend, and DevOps. I’m passionate about performance improvements, secure API design, and smooth migration projects that empower teams to ship value faster. I thrive in cross-functional teams, collaborating with UI/UX, Project Management, Business Analysis, and QA to deliver great software. I’m eager to leverage my experience in technology migrations, payment API integration, and real-time features to drive digital innovation in my next role.…Hi, I’m Rafly Pradana Kusumah, a Full Stack Developer based in Bogor, Indonesia. I love building fast, secure, and scalable web and mobile applications, with hands-on experience across frontend, backend, and DevOps. I’m passionate about performance improvements, secure API design, and smooth migration projects that empower teams to ship value faster. I thrive in cross-functional teams, collaborating with UI/UX, Project Management, Business Analysis, and QA to deliver great software. I’m eager to leverage my experience in technology migrations, payment API integration, and real-time features to drive digital innovation in my next role.

R. Rafly Pradana Kusumah

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

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Hi, I’m Rafly Pradana Kusumah, a Full Stack Developer based in Bogor, Indonesia. I love building fast, secure, and scalable web and mobile applications, with hands-on experience across frontend, backend, and DevOps. I’m passionate about performance improvements, secure API design, and smooth migration projects that empower teams to ship value faster. I thrive in cross-functional teams, collaborating with UI/UX, Project Management, Business Analysis, and QA to deliver great software. I’m eager to leverage my experience in technology migrations, payment API integration, and real-time features to drive digital innovation in my next role.…Hi, I’m Rafly Pradana Kusumah, a Full Stack Developer based in Bogor, Indonesia. I love building fast, secure, and scalable web and mobile applications, with hands-on experience across frontend, backend, and DevOps. I’m passionate about performance improvements, secure API design, and smooth migration projects that empower teams to ship value faster. I thrive in cross-functional teams, collaborating with UI/UX, Project Management, Business Analysis, and QA to deliver great software. I’m eager to leverage my experience in technology migrations, payment API integration, and real-time features to drive digital innovation in my next role.

Available to hire

Hi, I’m Rafly Pradana Kusumah, a Full Stack Developer based in Bogor, Indonesia. I love building fast, secure, and scalable web and mobile applications, with hands-on experience across frontend, backend, and DevOps. I’m passionate about performance improvements, secure API design, and smooth migration projects that empower teams to ship value faster.

I thrive in cross-functional teams, collaborating with UI/UX, Project Management, Business Analysis, and QA to deliver great software. I’m eager to leverage my experience in technology migrations, payment API integration, and real-time features to drive digital innovation in my next role.

Skills

Experience Level

Expert

Expert

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Expert

Language

Indonesian

Fluent

English

Intermediate

Work Experience

Full Stack Developer at PT Zegen Solusi Mandiri

July 1, 2025 - Present

Migrated projects from React CRA to Vite and from JavaScript to TypeScript, improving build time by 90%. Implemented ETL scripts to convert .js to .jsx for Vite compatibility. Integrated Husky, ESLint, Prettier, and lint-staged. Implemented MFA with Google Authenticator and rate limiting; introduced the Exported Files Approval with password protection and an approval workflow to control downloads; added a job-queued export flow to reduce server load by ~30%. Integrated Docker into the frontend project for container-based deployment. Developed a centralized rate limiting module across APIs, handling real client IPs behind proxies/load balancers. Collaborated with UI/UX, PM, BA, and QA. Technologies used: React.js, TypeScript, Ant Design (frontend); Golang, Echo, PHP, Laravel, SQL Server (backend).

Full Stack Developer at PT Amani Group Indonesia

July 1, 2024 - July 1, 2025

Developed Core Banking projects, BackOffice Core Banking, Home Investor/Home Owner/Home Buyer integrations, and Company Landing Pages. Built internal NPM packages to improve cross-project development efficiency. Designed and implemented advanced CRUD, database architecture, and query optimization. Implemented Server-Sent Events for real-time data, integrated Xendit API for CRM payments (over 1,000 transactions/month), refactored code for maintainability, and optimized performance (up to 35% faster queries). Established rate limits and API security to prevent server overload. Collaborated with UI/UX, PM, BA, and QA and participated in UAT.

Front End Developer at CV. Kreasi Swala Nusantara

August 1, 2023 - October 1, 2023

Assisted in developing the Business Trip project; designed UI and implemented API integrations. Applied Clean Code practices to ensure project standards and structure; improved performance and adhered to best practices; collaborated using Git.

Full Stack Developer at Freelance

July 1, 2023 - January 1, 2024

Conducted in-depth research for client projects; created application flow charts and API systems; designed UI and managed APIs and database structures. Worked on Company Profile and CMS projects, resolved issues with clients, and improved SEO to rank highly on Google; deployed ready-to-publish applications.

Full Stack Developer at PT Immobi Solusi Prima

January 1, 2023 - July 1, 2023

Developed ERP Finance and Fieldtrack projects. Used GitLab and Jira for collaboration; designed and managed backend database schemas; collaborated with UI/UX, BA, PM, and QA; created new features and performed production/staging debugging.