Ringgo Galih Sadewo — Lead Full Stack Engineer

I design and build production-grade web interfaces that are fast, accessible and maintainable — from high-conversion marketing sites to complex, data-heavy dashboards. Component architecture, state management and performance budgets are treated as first-class engineering concerns, not afterthoughts.

• 01Server-side rendering & static generation with Next.js
• 02Design-system driven, reusable component libraries
• 03Core Web Vitals, technical SEO & WCAG accessibility
• 04Complex state, real-time data and motion design

I architect and ship backend services that stay reliable under real traffic — clean domain modelling, well-documented APIs and data layers designed to grow with the business. Every service is built to be observable, testable and easy for the next engineer to own.

• 01REST & GraphQL APIs with Nest.js, Golang and Laravel
• 02PostgreSQL schema design, indexing & query optimisation
• 03Authentication, payments & third-party integrations
• 04Queues, caching and background processing

I own the path from commit to production: automated pipelines, containerised workloads and cloud infrastructure that is secure, observable and cost-aware. Releases are repeatable and boring — exactly how they should be.

• 01Cloud deployments on GCP & DigitalOcean
• 02CI/CD pipelines with automated testing & quality gates
• 03Docker, nginx, PM2 and Linux server administration
• 04Monitoring, logging, backups & zero-downtime releases

I build cross-platform mobile apps with React Native that feel native on both iOS and Android — and take them all the way from first prototype through store review to production and ongoing releases.

• 01Single codebase shipped to iOS & Android
• 02Push notifications, deep links & offline support
• 03Native module and device API integration
• 04App Store & Google Play release management

Security is built in, not bolted on. I audit applications and infrastructure, run penetration tests and actively hunt for vulnerabilities — finding the weaknesses before attackers do, then helping teams fix them properly.

• 01Application & infrastructure security audits
• 02Penetration testing across web, API and mobile
• 03Bug hunting & responsible disclosure
• 04OWASP Top 10 remediation and secure code review

As a Tech Lead I turn business goals into technical direction — designing systems, setting engineering standards and guiding teams to deliver on time for local and international clients, with clear communication in English and Indonesian.

• 01System design & technical roadmapping
• 02Code review, engineering standards & mentoring
• 03Scoping, estimation and delivery ownership
• 04Stakeholder communication with global clients