Lintang Luthfiantoni — Full Stack Engineer | React Native Developer | Frontend Developer

Full-stack engineer with a strong focus on maintainability, automated testing, CI/CD pipelines, and improving engineering productivity, quality, and development workflows — across React Native mobile apps for iOS and Android, React/Next.js frontend, and backend systems built with Ruby on Rails, Laravel, and Node.js. Experienced in offline-capable workflow synchronization, RESTful API integration, Redux, Zustand, React Query, Expo/EAS builds, PostgreSQL/MySQL database design, Git version control, responsive UI, and reusable, production-grade components across mobile and web.

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“Anyone can write code that a computer understands. Great programmers write code that humans can understand.”

– Martin Fowler

#skills

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#languages

Languages

Fundamental programming & web languages.

HTMLCSSJavaScriptTypeScriptPHP

#frameworks

Frameworks & Libraries

Core stack for mobile & web development.

React NativeExpoReact JSLaravelRuby on RailsNext JSNode JSFastlaneCodePushReduxZustandRecoilReact HooksContext APITailwind CSSBootstrapMaterial-UIMaterialize CSSSCSSSASSJestReact Testing Library

#database

Database & Storage

Relational, realtime, and object data stores.

MySQLPostgreSQLFirebaseAWS S3

#tools

Tools

Daily drivers for development & delivery.

GitCI/CDJiraNotionFigmaAndroid StudioXCodeEASAI Tools

#others

Others

Practices and architectures.

RESTful APIResponsive UIClean ArchitectureComponent-based architectureMobile Security (Certificate Pinning, Secure Storage)iOS DevelopmentApplication DevelopmentObject-Oriented Programming (OOP)Web platform developmentNative ModulesCode ReviewAgile Development

#experience

Aptus Technologies Pte Ltd (Jod)

Nov 2023 — Present

Singapore (Remote)

Full Stack Developer

May 2025 — Present

Delivered end-to-end frontend web features for jodapp.com, supporting core business operations, admin workflows, and responsive user-centric interfaces.
Developed and maintained scalable backend and frontend solutions, including APIs and BFF-style support, to support platform stability and growth.
Built RESTful APIs (Ruby on Rails) and integrated AWS S3 to enable secure and efficient data and file management.
Implemented SEO best practices to improve search visibility, organic traffic, and product discoverability.
Optimized application performance and functionality to better align with evolving business needs.

Mobile Developer

Nov 2023 — May 2025

Improved mobile app responsiveness by optimizing Redux data handling and Context API usage, reducing unnecessary RESTful API calls across iOS and Android in React Native apps.
Enhanced app stability by refactoring legacy modules and strengthening error-handling, debugging, and bug-fixing patterns to better handle hardware, network variability, offline connectivity, and production issues.
Implemented SSL pinning and secure storage to strengthen mobile security and reduce vulnerability risks.
Collaborated with cross-functional teams to turn requirements into user-facing features and ship roadmap features for thousands of active gig workers.
Improved CI/CD reliability by integrating automated testing, quality checks, code reviews, release workflows, and versioning to strengthen release quality and delivery across iOS and Android.

Freelance Mobile Developer (React Native) @ PT. Indo Teknologi Cemerlang

Jan 2022 — Jul 2026

West Jakarta, Indonesia (Remote)

Delivered React Native app features including real-time order tracking, driver assignment workflows, in-app chat, offline-capable synchronization, and local data storage across iOS and Android.
Collaborated with backend and product teams to ensure seamless RESTful API integration, stable releases, and a consistent user experience across iOS and Android.
Built reusable UI components and improved codebase maintainability through modular frontend architecture and standardized coding practices.

Frontend Developer @ PT Solusi Teknologi Nusantara

Apr 2022 — Apr 2023

West Jakarta, Indonesia (Remote)

Built responsive, mobile-first UI components using React.js and Tailwind CSS, with close attention to design quality and user experience.
Refactored legacy components into modular hooks to reduce code redundancy and improve maintainability.
Improved rendering performance across key pages to enhance UX on low-end devices.

Freelance Mobile Developer @ PT Sentra Aktiva Indonesia

Dec 2021 — Mar 2022

West Jakarta, Indonesia (Remote)

Developed and improved mobile features including push notifications, real-time updates, deep linking, and app performance optimizations to enhance app usability.
Improved app stability by optimizing caching mechanisms and data-fetching strategies for more reliable mobile app performance.

Fullstack Web Developer @ CV Twin Group

Jul 2020 — Jan 2022

Banjarbaru, Indonesia (On-site)

Built fullstack modules using React.js, Laravel, and MySQL for service tracking, stock monitoring, and financial reporting.
Improved backend–frontend communication, resulting in a 25% improvement in system performance.
Automated report generation, reducing manual processing time by 40%.

#projects

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#website

#jod-board

Jod — Jod Board

Job-search web platform for part-time, gig, and full-time jobs in Singapore, with a focus on blue-collar workers, offering insurance and rewards points for gig workers after each completed job.

React.jsRuby on RailsTypeScriptPostgreSQLAWS S3BootstrapGitRedux

Details →Demo