Open to work.
Web applications. Built end to end.
I’m Rosemale-John. I build production applications, lead developers, and create tools that help teams do better work.
Inside the work
Select a product to explore my contribution.
Social music & voice
RedThread
Turns listening to music from a solo habit into a shared moment.
My contribution
Integrated Apple MusicKit and LiveKit so synchronized music listening and real-time voice calls could work together.
- Shared listening
- Apple MusicKit integration for synchronized music playback.
- Real-time voice
- LiveKit voice calls, simultaneous playback, and audio behavior.
Built with
- Laravel
- Filament
- LiveKit
- OneSignal
- MusicKit
- AWS
Showing RedThread project details.
Also contributed to F45 Training and other products across fitness, commerce, and community.
A little context
Across the stack. Alongside the team.
Since 2016, I’ve worked on marketplaces, fitness platforms, social apps, and the systems behind them.
My work goes beyond implementation: mentoring developers, reviewing code, supporting production, and building AI-assisted workflows for the team.
Experience, in context
Open a role to see what I worked on.
Jul 2019 — PresentProduct development agencySenior Full Stack Web Developer
Davao, Philippines · 7 yrs 4 mos
- Lead full-stack delivery across marketplace, eCommerce, booking, media, and payment products. Mentor developers through code reviews, technical guidance, and hiring support.
- Develop REST APIs and application features, integrate third-party services, and manage AWS deployments and production operations.
- Developed and maintained APIs and application features for Move With Us, a platform serving 300K+ monthly active users.
Selected projects: Move With Us, Valued, WeCollect, Mintie, Redthread, Tiebreak, Happyreno
Engineering initiatives
- Built and maintain internal AI Kit plugins for Claude Code and OpenAI Codex, with reusable agents, skills, MCP integrations, and development workflows.
- Introduced Grafana k6 load testing and Playwright end-to-end automation to evaluate application performance and validate production features.
- Help integrate AI-assisted coding, debugging, testing, and technical research into engineering processes. Evaluate unfamiliar technologies through research and proof-of-concept development.
Aug 2017 — Jun 2019Peoplewave Pty. Ltd.Lead Developer
Singapore · Remote · 1 yr 11 mos
- Led development and maintenance of an HR SaaS application, coordinating product delivery with engineering and operations teams.
- Integrated frontend applications with backend APIs. Maintained infrastructure, databases, queues, backups, monitoring, and CI workflows, with attention to security and data protection.
Nov 2016 — Dec 2017ParkieeFull Stack Web Developer · Part-time
California, USA · 1 yr 2 mos
- Developed reusable Vue.js components and backend APIs using Node.js and HapiJS.
- Designed data-storage solutions, optimized performance and scalability, and implemented CI tooling with DevOps engineering.
Sep 2016 — Jan 2018Bywave Philippines, Inc.Junior Full Stack Web Developer
Davao, Philippines · 1 yr 5 mos
- Developed unified APIs with PHP and Node.js, and maintained AngularJS and React applications.
- Implemented database backups and application reliability processes, collaborating with project managers and engineering leadership on delivery.
Mar 2016 — Aug 2016Cloudology CodesWeb Developer
Philippines · Hybrid · 6 mos
The toolkit
Across interfaces, application logic, services, and infrastructure.
- Frontend
- AngularJavaScriptNext.jsNuxtPrimeVueReactshadcn/uiTailwindTypeScriptVueVuetifyWordPress
- Backend
- LaravelFilamentGraphQLMongoDBMySQLNodePHPPostgreSQLRedisSupabase
- Integrations
- StripeLiveKitMusicKitAblyOneSignalPostHogAgoraGoogle APIsGoogle & Apple IAP
- DevOps
- AWSCloudflareDigitalOceanDockerLaravel ForgeHeroku
Working together
“A very pleasant folk to work with if you're looking for a proactive and responsive developer.”
Read full recommendation
In a very lean team developing 2 ambitious 0-1 products in less than a year, he was a star. Despite us working in different locations, he was meticulous in his development and proactive in catching and clarifying issues with the product team. He's also very helpful in translating the requirement into technical terms and vice versa.
A very pleasant folk to work with if you're looking for a proactive and responsive developer.
Have a project or role in mind?
Let’s talk it through.
Available for remote contract and full-time work, with working hours that overlap Australia and Singapore.