readme.md
Joshua Lim
Software & Product EngineerOrion Sleep (opens in a new tab)San Francisco, CA
Software and Product Engineer at Orion Sleep, shipping the native iOS app in SwiftUI and the React Native app to feature parity.
Overview
I build mobile products end to end. At Orion Sleep that means device onboarding, Wi-Fi provisioning, sleep insights and sensor-patch calibration, shipped to parity across a native iOS app in SwiftUI and a React Native app, each one owned from design through release. I also built the internal sales tooling the sales team runs deals on.
Since 2022 I have run Creating Real, a software studio where I led a 27-person team across engineering, design and operations. That is where Momeant came from, a Flutter social app on a Go backend with a server-authoritative QR co-presence protocol, and Biz, a merchant loyalty and payments platform on Stripe Connect. This site is one of the same set: an AI version of me answers questions so you do not have to scroll a resume.
Experience
February 2026 – Present
San Francisco, CA
Software & Product Engineer
Orion Sleep (opens in a new tab)
Seed-stage sleep technology company building smart mattress covers and sleep systems.
- Shipped device onboarding, Wi-Fi provisioning, sleep insights and sensor-patch calibration to parity across the native iOS app in SwiftUI and the React Native app, owning each feature from design through release.
- Built internal mobile sales tooling from scratch for the sales team to run conversations and deal pipelines, authoring nearly all of its commits.
- Held production stability by tracing orphaned promise leaks to BLE connection timeout races, and shipped rapid hotfixes for UI regressions.
- Mentored an engineering intern and worked with the backend, web and product teams to plan and release new features.
October 2022 – Present
San Francisco, CA
Founder & Software Engineer
Creating Real (opens in a new tab)
Software studio building consumer social and small-business commerce products.
- Recruited and led a 27-person team across engineering, design and operations, building the hiring pipeline, contracts and onboarding from scratch.
- Architected Momeant, a Flutter social app on a Go backend with MongoDB and Redis, including a server-authoritative QR co-presence protocol using one-second rotating nonces.
- Developed Biz, a merchant loyalty and payments platform integrated with Stripe Connect, Bluetooth Terminal card readers and configurable earn rules, powered by a FastAPI merchant advisor agent.
- Extracted a shared Go platform library for co-presence, service auth and rate limiting used across the studio's products, and set up CI/CD with automated environment promotion and secret scanning.
December 2025 – February 2026
Orlando, FL
Software Engineer Intern
Stealth Startup
Fin-tech startup using AI systems to give consumers financial education.
- Built an AI-enabled personal finance dashboard on Azure, scoping the MVP requirements and system architecture directly with the founding team.
Selected work
Portfolio Chatbot(opens in a new tab)
This site. A generative-AI persona of me, so you can just ask instead of scrolling.
React · TypeScript · Firebase · Gemini
Momeant(opens in a new tab)
A Flutter social app on a Go backend with MongoDB and Redis. The interesting part is co-presence: proving two people are actually in the same place, done with a server-authoritative QR protocol on one-second rotating nonces so a screenshot of a code is worth nothing a second later.
Flutter · Go · MongoDB · Redis · GCP
Hybrid(opens in a new tab)
An interpreted language I maintain, with flexible syntax for flexible environments. Open source and ongoing.
Rust · Python · JavaScript
Stack
| Area | Tools |
|---|---|
| Languages | Swift · TypeScript · Golang · Dart · Python · SQL |
| Frontend | SwiftUI · React Native · Flutter · React.js · Tailwind CSS |
| Backend & data | FastAPI · Node.js · REST APIs · WebSockets · PostgreSQL · MongoDB · Redis · Firestore · Supabase |
| Cloud & DevOps | GCP · Firebase · Cloudflare · AWS · Azure · Docker · GitHub Actions · CI/CD |
| AI & product tools | Claude Code · Anthropic API · Google Gemini · Genkit · MCP · RAG · Cursor · Figma · Stripe Connect |
Education
| Institution | Credential | Dates |
|---|---|---|
| University of Central Florida | Bachelor of Integrative General Studies Minors in Computer Science and Business Administration | August 2022 – July 2026 |
Contact
- hi@joshualim.me
- linkedin.com/in/joshualim30
- GitHub
- github.com/joshualim30
- Based in
- San Francisco, CA
- This site
- github.com/joshualim30/portfolio (opens in a new tab)