Open to new opportunities
Hi, I'm Khotib —
Senior Web Software Engineer
Senior Software Engineer with 7+ years of experience delivering scalable, high-performance web applications across travel technology, e-commerce, and software consulting. Specialized in React, TypeScript, and Next.js, with a consistent record of improving Core Web Vitals, SEO, and application reliability for products used at scale.
{ "name": "Muhammad Khotib", "focus": "Core Web Vitals Specialist", "location": "Bogor, Indonesia", "experience": "7+ years" }
Engineering for speed, at scale
7+ years turning slow, unreliable pages into fast, dependable products — from agency client work to travel-tech platforms serving millions of users.
I'm a senior web engineer specializing in Core Web Vitals, reliability, and frontend architecture. My focus is on the metrics that determine whether a page feels instant or gets abandoned — LCP, CLS, and INP — and on building the tooling and habits that help teams ship quickly without regressing them.
My background spans travel technology at Traveloka, e-commerce at Tokopedia, and fast-paced client delivery at a software agency — giving me range across scale, constraints, and stakeholders.
- 2015Started B.Sc. in Information Systems
Began studying Information Systems at Institut Teknologi Sepuluh Nopember (ITS), Surabaya.
- 2019Graduated & Joined the Industry
Graduated from ITS and started as a Full Stack Engineer at PT. Solusi Pembayaran Elektronik, building client projects on tight timelines.
- 2021Moved into E-commerce at Scale
Joined Tokopedia as a Web Platform Software Engineer, shipping the dekara project and improving internal tooling efficiency.
- 2024Senior Web Software Engineer at Traveloka
Joined Traveloka to drive Core Web Vitals and reliability initiatives across flight landing pages at scale.
Where I've made an impact
Measurable outcomes from live production systems, across three engineering teams.
- Maintained mobile web SLO above 99% and led reliability initiatives based on production metrics.
- Reduced server error volume from 5M to under 10K while lowering I/O overhead.
- Improved page latency on the Flight Landing Pages from 3 seconds to under 1.5 seconds.
- Delivered the dekara project with complex features built from the ground up, within a tight deadline.
- Improved developer experience and efficiency on internal tools, reducing local memory consumption.
- Introduced unit tests that raised branch coverage to 85% and above.
- Developed and maintained full-stack web applications using PHP, Laravel, MySQL, HTML, CSS, and JavaScript for multiple client projects.
- Delivered 10+ client projects across various industries, consistently meeting aggressive deadlines, with some projects completed in as little as 3 days.
- Worked closely with designers and stakeholders throughout the software development lifecycle, from planning and implementation to deployment and maintenance.
Technical Skills
Centered on the React/Next.js ecosystem, with the tooling to monitor and safeguard performance in production.
Languages & Frameworks
Performance Tooling
Focus Areas
Industry Knowledge
Academic foundation
Formal training that underpins the day-to-day engineering practice.
Surabaya, Indonesia
Four years of study in software engineering, data structures, and systems design — the foundation behind the performance-focused engineering work that followed.
Verified on HackerRank
Skills verified through timed, proctored assessments administered by HackerRank.
Demonstrates the ability to build production-grade interfaces with React — covering component architecture, state management, and UI performance.
Demonstrates strong algorithmic thinking and data-structure fluency.
Demonstrates working proficiency in Go for backend and systems-level development.
Demonstrates advanced JavaScript proficiency — closures, asynchronous patterns, and DOM internals.
Demonstrates core React proficiency — components, props, and lifecycle fundamentals.
Demonstrates foundational JavaScript syntax and applied problem-solving ability.
Demonstrates baseline algorithmic problem-solving ability.
Get in Touch
Open to senior frontend and web engineering roles, as well as select consulting engagements.