ABOUT
Febby Rachmat Gumilar
Senior Full-Stack & Mobile Engineer
React · Next.js · Node.js · iOS / Android · Google Cloud · AI Agents
Building and running MagLoft's publishing platform end-to-end, from native apps to Google Cloud backends, plus enterprise products for Amway across EU, South Africa, and ANZ.
Open to OpportunitiesSoftware Engineer (Mid · Senior · Staff) · Full-time, Part-time, or Contract · Remote-first
Reach out →- 78Projects Shipped
- 400K+MagLoft Readers
- 26+Countries Served
- 35M+API Requests / mo
SUMMARY
Currently MagLoft's sole engineer.
Day-to-day I run the whole MagLoft stack on my own. Since going solo I have shipped 4 enterprise client projects, all on time with no production incidents, and brought infrastructure cost down 10.5%. In 2026 I rebuilt MagLoft's AI PDF conversion on Claude and delivered the Amway annual update across four products.
Outside client work I built a desktop AI assistant on the Claude Code CLI and MCP. Its agents browse and act on web pages, code and test on a review branch, research business ideas, and take notes in live meetings over OpenAI Realtime, with a human approving anything before it ships. The same tooling is part of my daily work.
Before going solo I led a team of three through 10+ enterprise projects, including 6 Amway products live across EU, South Africa, and ANZ. Before that, four years of full-stack work on 7 MagLoft web products and 40+ custom projects, on top of the mobile platform I started on in 2016, 400+ iOS and Android releases at 4.5★ and 99.5%+ crash-free.
14+ years across mobile, full-stack, and infra. Solo work has taught me to scope ambiguous problems and stay accountable for what breaks. I stayed at MagLoft because they kept opening up bigger surfaces, Mobile Full-Stack Lead Sole Engineer. Ready for the next one, bigger team, deeper product, or both.
Best fit: product or platform team where ownership and end-to-end thinking matter more than process. Most useful in publishing, mobile, or GCP-heavy products. Title is flexible, and what matters is the surface, the team, and the comp.
EXPERIENCE
Professional Experience
Feb 2025 - Present1 yr 8 mos
Sole Engineer
MagLoftRemote (Bandung, Indonesia)
- Sole engineer for the whole MagLoft stack, 8+ products and 30+ GCP services (Cloud Run, VMs, CDN, Load Balancers, Pub/Sub, Cloud SQL) serving 400,000+ readers and 35M+ API requests a month. Kept the platform current with Node 22 and TypeScript 5 on the API and a native rewrite of the Android reader app
- Delivered 4 enterprise custom projects in a 5-month stretch (Amway recurring updates plus new client work), all on time with zero production incidents and zero client-reported bugs
- Reduced cloud infrastructure cost by 10.5% through Cloud Run and VM right-sizing and a Cloud SQL upgrade. In 2026 cut Bunny CDN image-cache storage cost by about 67% by moving the perma-cache from a 7-region replicated zone to a single region
- Built MagLoft's AI PDF conversion, first on OpenAI (2025), then rebuilt on Claude and launched in production in July 2026 at $2 per page, with the batch pipeline moved from Cloud Functions to Cloud Run Jobs for multi-hour conversions. SEO and social-post generation moved to Claude the following month
- Delivered the 2026 Amway annual update across four products (Income Simulator, SSD, Achievers, and a new My Recognition certificate page with token-verified PDF download), plus two new Amway builds, ABO Journey (onboarding for new Amway Business Owners across 34 markets) and the Achievers Gallery widget
Feb 2024 - Feb 20251 year
Lead Developer
MagLoftRemote (Bandung, Indonesia)
- Led 10+ custom development projects for enterprise clients and major publishers, delivered with zero production incidents
- Led a 3-person team shipping 50+ features across 6+ MagLoft products, including AI features (text-to-speech, SEO generation), a token system, and integrations with OpenAI, Stripe, GoHighLevel, and Zapier
- Migrated publishers from the legacy portal to the new Universal App admin, with per-feature toggles, better analytics, and finer user access levels
Feb 2020 - Jan 20243 yrs 11 mos
Fullstack Developer
MagLoftRemote (Bandung, Indonesia)
- Moved from mobile-only to full-stack (Angular, React, Next.js, GraphQL, Node.js, Ruby, Cloud Functions) and delivered 7 MagLoft web products (Admin, Editor, Universal App, FlexPDF, MXP, PWA, Portal) while keeping the mobile apps at 99.5%+ crash-free
- Delivered 40+ custom development projects over 4 years (averaging 10 projects a year), including 6 major Amway enterprise projects (Xperience, Income Simulator, SSD, Achievers, Recognition, Wellness Program) with recurring annual updates and 100% client retention
- Built the GraphQL and REST APIs on Cloud Functions that now handle 35M+ requests a month, keeping data in sync in real time across mobile and web
Jun 2016 - Jan 20203 yrs 8 mos
Mobile Application Developer
MagLoftRemote (Bandung, Indonesia)
- Took on Android next to iOS so one engineer covered both platforms, delivering 400+ app builds (100+ per platform per year) for MagLoft publishers at 4.5+ star ratings and 99.5%+ crash-free
- Helped build app-drone, the semi-automated system that generates a customised iOS and Android app for each publisher in place of manual builds
- Built 50+ mobile features including bookmarks, notes, annotations, offline reading, push notifications, in-app purchases, and subscription management, growing the reader app from list, download, and read into a full publishing platform
- Led React Native adoption inside the native iOS and Android apps, building the shared Shelf home screen (magazines, articles, account) without giving up native performance
Jul 2012 - May 2016~4 years
Earlier roles: Mobile / iOS Lead & Software Engineer
PT. Mitra Media Aplikasi · Jack's Labs · Pushjaw · PT. Informatika Reka MandiriBandung, Indonesia
- Led mobile teams and shipped iOS / Android client apps across 4 Bandung studios, established mobile development practices and mentored junior devs
- Built early enterprise software (Java / .NET) and web/mobile client work before transitioning fully into mobile-focused product engineering
SKILLS
Technical Expertise
Mobile Development
- 10+ years of native iOS and Android, from MagLoft's white-label reader apps to Amway Xperience
- Native iOS (Swift, Objective-C, SwiftUI, UIKit) and Android (Kotlin, Java)
- Cross-platform development with React Native for iOS/Android
- Consistently achieving 4.5+ star ratings and 99.5%+ crash-free rate across all apps
Full Stack Development
- Daily work in React, Next.js, Angular, TypeScript
- Backend in Ruby on Rails, Node.js with GraphQL and REST APIs
- Database design and optimization across PostgreSQL, MySQL, Redis, MongoDB
- Delivered 7 major MagLoft web products (Admin, Editor, Universal App, FlexPDF, MXP, PWA, Portal) for 400,000+ readers, plus 5+ Amway enterprise widgets (Achievers, Income Simulator, SSD, Recognition) across EU, South Africa, and ANZ markets
Cloud & DevOps
- Managing 30+ Google Cloud services (Cloud Run, VMs, CDN, Load Balancers, Pub/Sub, Scheduler, Cloud SQL)
- Handling 35M+ API requests monthly with 99.9%+ uptime for 400,000+ active readers
- Container orchestration with Docker and infrastructure optimization (10.5% GCP cost reduction, about 67% cut on CDN image-cache storage)
- Implementing CI/CD pipelines and automated deployment systems (app-drone build automation)
Leadership & Project Delivery
- Led 3-person development team shipping 50+ features across 6+ major MagLoft products
- Delivered 54+ custom enterprise projects over 5 years, including 6 major Amway products live across EU, South Africa, and ANZ markets
- 100% client retention on those projects, with zero production incidents
- Scope and estimate client work directly with stakeholders, from proposal to delivery, on Amway's annual cycle since 2021
AI Agents
- Built a desktop AI assistant whose agents carry multi-step work on their own and stop for human review before anything is submitted or merged. Every agent runs on persistent Claude Code CLI sessions through an in-process MCP tool server, with per-tool authorization, run telemetry, and live-run evaluation
- The AI Web Agent reads a web page, works out what needs doing, and does it, from solving the task on the page to navigating, taking screenshots, and filling forms. It works inside Chrome through a companion extension or a dedicated browser over CDP, read-only until a tool is authorized
- The AI Developer Agent takes a task, then plans, codes, tests, and commits to a review branch inside a workspace repo. A delivery gate re-prompts it when tests or commits are missing, and it can pick tasks up from a ClickUp board and report status back
- The AI Job Agent researches a role and its company, screens out scams, drafts a tailored cover letter, fills the application, and stops at submit for approval. The AI Idea Generator Agent runs a generate, validate, and blueprint funnel with live web research, scoring each idea on demand, competition, and feasibility before writing the business plan
- The AI Realtime Audio assistant sits in on a live meeting over OpenAI Realtime, capturing mic and system audio into a running transcript, keeping live notes on the discussion in a floating panel, and saving the transcript with a summary to a meetings store afterwards. Voice Mode takes spoken commands or conversation, answers back, and drives apps, URLs, and the other agents through tools
AI in Production
- Shipped AI product features in production, an AI PDF conversion pipeline on Claude (OpenAI first), OpenAI Text-to-Speech and SEO generation, DeepL translation across 26 languages, and a provider-agnostic AI writing assistant (OpenAI, Claude, Gemini, Cohere)
- Produced the comic-scene artwork for a client onboarding page in-house with Gemini image generation, two recurring characters kept consistent across every scene through reference-anchored prompts, a face-similarity gate on each render, real product shots as references, and page screens composited in afterwards. A script drove the Gemini web app over CDP, one scene at a time, with the prompt refined one change per round
- AI coding agents (Claude Code) are part of daily design, implementation, review, and debugging work
EDUCATION