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Rizki

Senior DevOps / Platform Engineer

Kanagawa, Japan+6281398631622rizki@rizkidoank.comwww.linkedin.com/in/rizkidoankgithub.com/rizkidoankrizkidoank.com

Professional Summary

Senior software engineer with 9+ years building accessible, high-traffic web applications and design systems. Owns features end to end — from discovery and API design through testing, deployment and observability. Known for measurable performance wins (median page load time cut by 48% across two product teams) and for mentoring: has coached 12 engineers and introduced the code-review and testing standards now used org-wide.

Skills

Languages
TypeScript, JavaScript, Python, SQL, HTML5, CSS3
Frontend
React, Astro, Next.js, Tailwind CSS, Design Systems, Accessibility (WCAG 2.2)
Backend & Data
Node.js, PostgreSQL, Redis, GraphQL, REST, Event-driven architecture
Platform & Practices
Git, CI/CD, Docker, AWS, Playwright, Jest, Observability, Agile/Scrum

Work Experience

  1. Senior DevOps / Platform Engineer

    – Present

    Nebula Labs · Singapore (Remote)

    • Lead a squad of 5 engineers delivering a multi-tenant analytics platform used by 1.2M monthly active users, holding 99.95% uptime for 18 consecutive months.
    • Cut median page load time from 4.1s to 1.6s (−61%) via route-level code splitting, CDN caching and image optimisation.
    • Designed a GraphQL federation layer that reduced over-fetching by 40% and shortened client integration for 3 internal product teams.
    • Introduced CI quality gates (unit, integration and Lighthouse budgets) that raised main-branch test coverage from 43% to 81%.
  2. Software Engineer

    –

    Pixelworks Digital · Bangkok, Thailand

    • Built React + TypeScript storefronts for 20+ e-commerce clients and maintained the shared component library adopted by 6 delivery teams.
    • Shipped a mobile checkout redesign that lifted conversion by 17% and reduced payment-related support tickets by a third.
    • Rolled out automated visual regression testing, saving roughly 12 hours of manual QA per release.
  3. Junior Web Developer

    –

    Bright Studio · Remote

    • Developed responsive marketing sites and CMS themes in HTML, CSS and JavaScript for 15+ clients.
    • Raised the average Lighthouse performance score of the agency template library from 58 to 92.

Education

  1. Bachelor of Science in Computer Science

    –

    Chulalongkorn University · Bangkok, Thailand

    Second Class Honours. Final-year thesis on accessible data-visualisation interfaces.

Certifications