Open to opportunities

Kevin Sofyan

@kevinsofyan1

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Frontend engineer specializing in React/Next.js, performance, and AI-augmented delivery.

Singapore

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What I'm looking for

I seek senior frontend roles where I can build performant, accessible web apps, mentor teams, integrate AI tools, and deliver fintech or high-traffic e-commerce products with strong engineering standards.

I am a frontend engineer with 9+ years building enterprise React/Next.js and Angular applications across fintech, e-commerce, and AI sectors. I focus on modern frontend architecture, performance optimization, accessibility (WCAG), and reliable CI/CD pipelines.

I have shipped regulated fintech systems (loans, payments, crypto) and high-traffic e-commerce platforms, delivering measurable improvements like reducing initial load from 5.2s to 2.0s and supporting thousands of daily users. I build production-grade features under strict compliance requirements.

I leverage AI-augmented developer tools (Cursor, Claude Code) to accelerate delivery while preserving code quality, and I’ve integrated LLM backends for streaming agent chat UIs. I’ve engineered embeddable widgets, workflow runners, and complex integrations with Google Workspace and crypto APIs.

I enjoy collaborating with distributed teams across Singapore, Spain, India, and Indonesia, mentoring junior engineers, instituting code-review practices, and driving pragmatic solutions that balance speed, security, and maintainability.

Experience

Work history, roles, and key accomplishments

Current

Lead Frontend Engineer

Current

Orchestrator Pte. Ltd.

Feb 2024 - Present (2 years)

Led development of Orchestrator Workflow Studio MVP and proprietary Workflow Runner, delivering an embeddable workflow builder and agent chat UI with real-time streaming to enable pilot customers to automate Bitcoin operations and AI agents.

Next.js TypeScript React Flow Server Sent Events Tailwind Vercel Zustand

Senior Frontend Engineer

Beyondsoft Pte. Ltd.

Aug 2023 - Jan 2024 (5 months)

Built and maintained Angular SPAs for Volotea's flight booking platform, improving initial load time from 5.2s to 2.0s and delivering passenger seat selection and payment/authentication fixes across multiple markets.

Angular TypeScript SCSS Performance Optimization Pnpm CI CD

Senior Frontend Developer

Akseleran Keuangan Inklusif

Sep 2019 - Aug 2023 (3 years 11 months)

Developed Loan Origination System processing 10,000+ applications/month and maintained React web app with 16k+ daily active users, integrating payment checkout and reducing approval time under OJK regulatory requirements.

React Redux styled components Storybook Formik Jest Payments Regulatory Compliance

Frontend Developer

Gramedia Digital Nusantara

Jun 2016 - Aug 2019 (3 years 2 months)

Founding frontend engineer for gramedia.com e-commerce features handling 20k+ daily transactions and peak 50k concurrent users; led development of ePerpus B2B library platform and web-based ebook reader.

Angular TypeScript PHP CodeIgniter SCSS Performance Optimization jQuery

Web Developer

Pixel Teknologi Indonesia

Oct 2015 - Jun 2016 (8 months)

Built landing pages and an internal HR dashboard using PHP frameworks and Angular.js; performed QA for high-traffic Japanese client sites handling ~2M annual users and resolved 150+ critical issues pre-production.