Technical Lead & Backend Architect building scalable, secure, production-grade systems.

I specialize in taking products from 0 → production → scale, with a focus on backend architecture, distributed systems, security, cloud infrastructure, and pragmatic engineering leadership.

Over the years, I've built and operated systems handling 50M+ requests/day, 300K+ users, and billions of traffic events, working across AWS, PostgreSQL, Redis, Django, Laravel, Node.js, and TypeScript.

Building financial applications where security, encryption, reliability, and compliance are first-class requirements.

• Django + PostgreSQL + Redis
• Bare-metal deployment
• Designed for 5,000 concurrent users
• Secure key management concepts for financial institutions

Building a benchmark suite for web applications that can be run locally with minimal setup.

The goal is to make it easier to measure and compare real-world application performance, rather than relying purely on theoretical benchmarks.

Building a LinkedIn-style platform for professionals, companies, and investors.

• Django
• PostgreSQL
• Redis
• Spec-Driven Development
• AI-assisted engineering workflow

Building a lightweight Learning Management System tailored for a small company.

• Laravel
• PostgreSQL
• Redis

Architecture Designing systems that remain maintainable as traffic, users, and product complexity grow.

Performance Finding bottlenecks, improving throughput, and making systems efficient without blindly adding infrastructure.

Security Designing applications where security is part of the architecture rather than something added at the end.

Cloud & Infrastructure AWS, containerized deployments, observability, CI/CD, networking, and production operations.

AI-Assisted Engineering Using AI agents and specification-driven development to increase engineering velocity while keeping architecture and code quality under control.

Some systems I've worked on include:

• 50M+ requests/day mobile analytics platform
• ~6 GB/day of data ingestion
• 300K users reached in approximately three months
• 2B+ DDoS attack traffic mitigated while maintaining 99.97% SLA
• Production systems serving 100K+ daily users
• AWS infrastructure optimized for significant cost reductions

Golang, Rust, distributed systems, security engineering, and AI-assisted software development.

I'm interested in collaborating on ambitious engineering projects involving:

Backend Systems · Distributed Systems · Fintech · Security · Cloud Infrastructure · AI-Assisted Development

I'm also available for technical leadership, architecture consulting, freelance engineering, and full-time opportunities.

📫 Email: clasense4 [at] gmail [dot] com

Build it. Scale it. Secure it. Ship it.