Ryan Mathews

Software engineer building fast, reliable systems across iOS and backend.

I specialize in real-time data, fintech infrastructure, and production-ready mobile apps — with a focus on performance, clarity, and shipping.

New York, NY · Open for contracting work

About Me

I'm a software engineer with experience across iOS, backend systems, and data-intensive applications.

I enjoy working close to the metal when performance matters, and close to users when product quality matters. I've built real-time pipelines, production mobile apps, and internal tools used by teams to move faster and with more confidence.

I'm currently looking for roles where I can work on meaningful systems, strong engineering culture, and real-world impact.

Featured Projects

HFT Middleware for Solana

Middleware layer for Solana token trading, transforming raw blockchain data into feature-rich feeds with execution hooks for real-time trading.

Python Kafka gRPC AWS Docker
  • Scalable data pipeline with Helius gRPC Laserstream for high-throughput swap updates
  • Advanced trading features: burst-buy detection, order-flow imbalance, rug-pull risk tracking
  • Ultra-low-latency execution via Jito Network integration
  • Health metrics dashboard with P&L reporting for trade lifecycle monitoring

Threads Integration @ Meta

Led product development for Instagram-to-Threads integration, driving significant user growth through crossposting and onboarding flows.

Swift Objective-C PHP/Hack iOS
  • IG Feed → Threads crossposting: +510K daily posts, +11% top-line original posts
  • New onboarding flow: +40% onboarded users (+320K/day), +50K new DAU
  • Navigation change: +2.12% eDAU, +1.34% eWAU, +1.74% impressions

Instagram Attribution Kit

Re-architected how attributions are displayed for IG feed posts into a scalable, protocol-based system.

Swift iOS Architecture
  • Complete rewrite from Obj-C to Swift with protocolized attributions
  • Header UI change: +0.21% post impressions, +0.25% top-line revenue
  • Decreased bugs, eased code complexity, increased developer efficiency

Current Work

iOS Contractor

Freelance

2025 — Present

New York, NY

Building and maintaining iOS applications for clients. Swift, SwiftUI, and UIKit development with a focus on clean architecture and performance.

Quantitative Developer

Independent

2025 — Present

New York, NY

Building real-time trading middleware for Solana using Kafka, gRPC, and Jito Network for ultra-low-latency execution.

Companies

Quantitative trading and investment research focused on cryptocurrency markets and DeFi protocols.

Software consulting and iOS development services for startups and enterprises.

Previous Experience

Senior Software Engineer

Meta (Instagram / Threads)

Apr 2022 — Sep 2025

New York, NY

Led iOS product development for Threads integration. Drove +510K daily posts via crossposting, +40% user onboarding, and re-architected the attribution system from Obj-C to Swift.

Software Development Engineer

Audible (Amazon)

Mar 2020 — Mar 2022

Newark, NJ

iOS engineer and release manager. Led API migration reducing service calls by 50% and owned server-driven UI architecture rollout.

Mobile App Developer

Globalstar

Sep 2018 — Mar 2020

Covington, LA

Built iOS apps for satellite IoT devices in Swift and React Native. Implemented CI/CD with Fastlane and BluetoothLE integrations.

Skills

Languages

  • Python
  • Swift
  • Objective-C
  • C++
  • Rust
  • JavaScript
  • PHP
  • SQL

iOS / Mobile

  • UIKit
  • SwiftUI
  • React Native
  • BluetoothLE
  • Core Data

APIs / Backend

  • REST
  • GraphQL
  • gRPC
  • RPC
  • Bash scripting

Databases

  • ClickHouse
  • Redis
  • Redpanda
  • PostgreSQL

Cloud / DevOps

  • AWS (IAM, EC2, S3, VPC)
  • Docker
  • Terraform
  • Apache Kafka
  • CI/CD

Domain

  • Product Engineering
  • Data Analysis
  • A/B Testing
  • High-Traffic Systems
  • Fintech / DeFi

Writing & Open Source

iOS Architecture: From Obj-C to Swift

Engineering Blog · Instagram

Lessons learned from re-architecting Instagram's attribution system into a scalable, protocol-based Swift framework.

Get in Touch

I'm eager to apply my data-driven product expertise and experience with low-latency, high-volume infrastructure to financial, fintech, and other data-intensive domains.

What I'd love to chat about:

  • Fintech and quantitative trading opportunities
  • iOS / mobile engineering roles
  • High-traffic product engineering
  • Data-intensive systems and infrastructure