Hey. I'm Bayu,
A CREATIVE
FRONTEND
DEVELOPER
Bridging design and technology—responsive interfaces and engaging experiences that captivate users and drive success.
RESPONSIVE DESIGN
Mobile-first interfaces that work flawlessly across all devices and screen sizes.
REACT DEVELOPMENT
Component-based architectures using React, Next.js, and cutting-edge technologies.
PERFORMANCE
Lightning-fast loading times and smooth interactions for optimal user experience.
UI ANIMATIONS
Custom animations and micro-interactions that bring designs to life with code.
Crafting Exceptional
Digital Experiences
Hey, I'm Bayu, a Senior Front-End Developer passionate about creating visually compelling and highly functional digital experiences.
With 10+ years of expertise in modern web technologies and a deep understanding of user experience, I develop applications that not only look great but also perform exceptionally.
Whether it's building a complete web application from scratch or optimizing existing systems for better performance, I blend technical excellence, creativity, and best practices to bring ideas to life.
Where I've Made an Impact
Senior Frontend Developer
Nov 2020 – PresentVulcan Agency · Remote · US Client- Build scalable web apps with Next.js (SSR/SSG), React, TypeScript & Prismic CMS for a US agency serving fintech, AI, and e-commerce clients.
- Optimised state management with Zustand & Context API, reducing unnecessary re-renders by 40% and improving Core Web Vitals across client properties.
- Integrated REST & GraphQL APIs with secure JWT and OAuth flows for apps handling sensitive financial and customer data.
- Maintained quality through Cypress automated testing and zero-downtime deployments via Vercel CI/CD.
Frontend Developer Lead
May 2015 – Nov 2020SoftwareSeni · Yogyakarta, Indonesia- Led frontend for a Shopify platform (koh.com) and Astra International's marketplace (seva.id), serving 100,000+ monthly active users.
- Built a React Native point-of-sale app (Bukutansi) for News Corp Australia with offline-first transactions and real-time inventory sync.
- Designed responsive UI for ProposalPoint SaaS, lifting mobile conversion rates by 35%.
- Mentored 5 junior developers and evaluated 20+ frontend candidates through technical interviews.
Freelance Web Developer
Oct 2017 – PresentUpwork & Direct Clients · Remote · US, UK, Belgium, Singapore- Delivered crypto/fintech platforms, custom WordPress themes, and pixel-perfect corporate sites for international clients.
- Maintained a 5-star Upwork rating with consistent on-time, pixel-perfect delivery from design mockups.
Published Template Author
2014 – 2016ThemeForest Marketplace · Remote- Developed and published STRT Multipurpose HTML Template — a commercially sold, modular, cross-browser responsive template with sustained positive reviews.
Featured Projects
Explore my recent web development projects and discover how we can transform your vision into reality.
01StealthGuard
Security products e-commerce site with a Shopify-backed catalog and a custom Prismic-driven CMS
View Details→
02Octant
Web3 public-goods funding platform marketing site, built from scratch with i18n and interactive storytelling
View Details→
03MatchPost
Progressive Web App enabling tennis players to record, analyze, and share match results with social features and real-time leaderboards
View Details→
04Ollo
AI Agent Dashboard for Brand Monitoring with real-time scraping visualization
View Details→
05Bitwage
Fintech Marketing Platform & Blog with SEO-optimized architecture
View Details→
06Phlex Proteins
Headless Shopify B2B Storefront with custom quoting workflows
View Details→Technologies I Work With
Frontend & Design
Tools & Platforms
Backend & CMS
What People Say
Bayu always delivers the job in a proper and efficient way. He knows what to do and is really open for discussion. Always satisfied to work with him. All the best, Bayu.
Bayu is one of the best people I have ever met. He has great recognition and deep experience of frontend skills — an ambitious person with boundless energy.
This guy is a hard-working man. Been with him on several projects over the past 4 years and he keeps delivering consistently great work. A valuable addition to the team!
I'm happy working with Bayu — I got the work done before deadline with the quality I expected. I'd like to work with Bayu more in the future.
Bayu created a couple of nice templates and I really like the tools he uses to reuse the same blocks of code without duplication.
Bayu delivered good work on this website template design project. Hope to hire him again for other projects!
From the Blog
I Failed a HackerRank Test This Week
Ten years as a frontend developer and I still failed a 15 minute HackerRank test. What tripped me up, why it happened, and how I am turning the weak spots into a study list.
Read article→TypeScript Is the Default Now, Not a Nice to Have
TypeScript stopped being optional for professional frontend work in 2026. Here is why, plus three simple habits that make your types catch real bugs: branded types, satisfies, and noUncheckedIndexedAccess.
Read article→useMemo vs useCallback vs React.memo: When to Use Each
A practical guide to React's three memoization tools — what useMemo, useCallback, and React.memo each do, when they help, when they hurt, and how to choose the right one.
Read article→Let's Work Together
Have a project in mind? I'd love to hear about it. Let's discuss how we can bring your ideas to life.