Open to opportunities

Roger Reep

@rogerreep1

Message

I am a senior full-stack engineer specializing in DeFi systems.

United States

Message

What I'm looking for

I’m seeking senior engineering roles at fast-moving startups or DeFi/fintech teams where I can architect scalable, secure cloud-native systems, mentor engineers, and accelerate product-market fit through performance-focused platform engineering.

I am a senior full-stack engineer with 7+ years building secure, high-performance systems across DeFi, fintech, and distributed architectures.

I have redesigned and implemented full-stack trading platforms that improved responsiveness by 40% and achieved 99.9% uptime via Docker, Terraform, and AWS; built high-performance MEV tooling and bots delivering strong ROI and shipped SDKs and gateways that reduced propagation time by up to 50% and drove rapid developer adoption.

I thrive mentoring teams, driving clean architecture and cross-functional collaboration, and accelerating startups by delivering scalable backend services, cloud-native microservices, and smart contract integrations that solve real product and performance challenges.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

PrivateAI

Apr 2024 - Jun 2025 (1 year 2 months)

Redesigned and implemented a full-stack meme coin trading platform, increasing platform responsiveness by 40% and enabling real-time analytics and seamless trade execution; deployed on AWS with Docker and Terraform achieving 99.9% uptime and 60% faster deployments.

PostgreSQL React AWS Docker Terraform GitHub Actions)

Full Stack Developer

Gmgn AI

Jun 2022 - Mar 2024 (1 year 9 months)

Developed core backend services for a decentralized trading platform across Solana and Base supporting 10K+ active users; implemented anti-MEV protections and smart order routing in Go and Solidity, reducing front-running attacks by over 70%.

Golang Solidity Solana MEV Auto Trading Performance Optimization AutoTrading

Backend Developer

bloXroute

Apr 2020 - May 2022 (2 years 1 month)

Implemented Relay-gRPC, Mev-relay, and BRM services and developed a high-performance MEV bot in Go and Python that achieved up to 12% ROI/day and executed 800+ profitable trades in under three months; built the SDK and gateway reducing propagation time by up to 50%.

Go Python Rust gRPC MEV SDK Development REST APIs

Software Developer

Criteo

Oct 2018 - Mar 2020 (1 year 5 months)

Designed scalable e-commerce web applications with React and TypeScript for 1M+ monthly users; migrated services to AWS and integrated GraphQL, reducing page load by 1.2s and contributing to a ~4% increase in monthly transactions (~80,000 orders/month).

React TypeScript AWS GraphQL Performance Optimization Responsive Design CI CD JavaScript

Education

Degrees, certifications, and relevant coursework

Kaplan Singapore

Bachelor of Science, Computer Science

2014 - 2018

Activities and societies: Coursework: Computer Architecture, Comparison of Learning Algorithms, Systems Programming, Applied AI

Completed a Bachelor of Science in Computer Science at Kaplan Singapore from Apr 2014 to Jul 2018, focusing on computer architecture, systems programming, applied AI, and learning algorithms.