+510K
daily original Threads posts
Ryan Mathews
I build high-scale consumer products and real-time systems for iOS.
Eight years across founding teams, Meta, Audible, and connected-device startups. I specialize in offline-first architecture, mobile performance, and products that deliver measurable growth.
Selected product impact at Meta
Shipping products that move real metrics.
Growth, engagement, and revenue improvements delivered across Instagram and Threads.
+320K
users onboarded per day
+2.12%
daily active users
+0.25%
Instagram revenue impact
Building at Idle.
Turning ambitious product ideas into a dependable, fast iOS experience from the first architecture decision onward.
Founding Engineer at Idle
Jan 2026-Present
AI-powered, offline-first collaboration on iOS
Leading product and systems work for an app that turns natural-language prompts into interactive widgets while keeping collaboration responsive across unreliable networks.
Product engineering
Built the AI widget creation workflow alongside groups, channels, direct messages, and unread-state experiences.
Architecture and performance
Designed optimistic offline sync and recovery, then improved startup and timeline performance with cache-first loading, fetch-around pagination, and deferred hydration.
Systems built end to end.
Independent work spanning mobile clients, secure backend infrastructure, quantitative research, and real-time execution.
Mobile agent platform
Cobile
A secure iOS and backend system for running AI agents against GitHub repositories with visible progress and human approval.
- Live progress
- Streams agent events to SwiftUI and replays missed work after reconnecting.
- Isolation
- Runs jobs in ephemeral ECS containers against read-only repository snapshots.
- Human approval
- Routes patches through a trusted service before opening pull requests.
SwiftUI / Fastify / AWS / WebSockets
Quantitative systems
Quantitative Research Platform
A research-to-execution platform for testing market hypotheses rigorously and deploying validated strategies.
- Research
- Combines Databento and macro data in ClickHouse across 26 equities.
- Validation
- Tests options-flow signals through walk-forward and out-of-sample evaluation.
- Execution
- Deploys validated strategies through a C++17 system connected to Interactive Brokers.
Python / C++17 / ClickHouse / ML
Experience across scale and constraints.
Each role expanded the products, systems, and engineering decisions I could own.
Meta / Instagram and Threads
Software Engineer
Led product and platform work connecting Instagram and Threads at global scale.
- Launched Threads creation features that drove 510K additional daily original posts and 185K weekly active users.
- Shipped onboarding improvements responsible for 320K more users onboarded per day and 50K new daily active users.
- Delivered Instagram gains of 2.12% in daily active users, 1.74% in impressions, and 0.25% in revenue.
Audible / Amazon
Software Development Engineer
Built iOS infrastructure and product systems for a high-traffic listening experience.
- Led an API migration that cut service calls by 50% while improving reliability.
- Built server-driven UI infrastructure so teams could ship and test with less client-side coupling.
Globalstar
Mobile App Developer
Shipped mobile workflows where software reliability met Bluetooth and satellite hardware.
- Built Bluetooth Low Energy workflows for configuring satellite IoT hardware in the field.
- Delivered satellite-messaging features and automated CI/CD and hardware testing for mobile releases.
Product judgment, systems depth.
I'm a senior iOS engineer with eight years of experience building consumer products from early-stage startups to global platforms.
I do my best work where product judgment and systems depth meet: offline-first architecture, real-time collaboration, mobile performance, and the details that make an app feel dependable.
I also build quantitative research and execution systems. Outside of engineering, I'm a New Orleans native with strong opinions about negronis, Lil Wayne mixtapes, and Louisiana sports.
Build something that has to work.
I'm interested in ambitious mobile products, high-scale systems, and difficult engineering problems.
Send an email