I am a Senior Fullstack & Backend Software Engineer with over 5 years of experience architecting high-throughput, enterprise-grade web systems, resilient event-driven pipelines, and ironclad cloud infrastructure. I partner directly with founders, startups, and engineering teams to transform complex workflows into secure, production-ready SaaS platforms that scale smoothly under load.
Holding both a B.Sc. and an M.Sc. in Biochemistry and Molecular Biology from Obafemi Awolowo University, I bring a unique analytical edge to software engineering. I approach complex system architecture, performance optimization, and distributed systems with the same deep mathematical rigor, data-driven methodology, and experimental precision required in complex biochemical research.
- Luftsocial: Architected a real-time chat infrastructure and a fault-tolerant, Redis-backed notification engine handling 200k+ daily push, email, and in-app alerts across 3 time zones. Slashed p95 message/delivery latency from 11s down to 2.3s. Developed an AI integration framework (
LuftAI) supporting smart replies and content moderation. - Fintech & E-commerce: Engineered an event-driven transaction orchestration engine managing 120k+ daily payments via Kafka. Reduced transaction failure rates by 28% and cut duplicate webhook support tickets by 73% through idempotent architecture and rigid contract testing.
- Performance Tuning & Cost Optimization: Optimized query execution and indexing across critical high-traffic database clusters (PostgreSQL/MySQL), cutting p95 read latencies from 890ms to 145ms and saving 31% in AWS RDS infrastructure costs.
- Engineering Leadership: Implemented strict Test-Driven Development (TDD) and CI/CD pipelines, increasing comprehensive test coverage from 54% to 89% and reducing production bug escape rates to a minimal 1.8%.
| Category | Technologies |
|---|---|
| Languages | `TypeScript/JavaScript, Node.js, Go (Golang), Python, Java, C#, Scala |
| Frameworks | React, Next.js, NestJS, Express.js, Spring Boot, FastAPI, Gin, Django |
| Databases & Caching | PostgreSQL, Supabase (with Row-Level Security), MySQL, MongoDB, Redis |
| DevOps & Cloud | AWS (EKS, ECS, Lambda, EC2, S3), Kubernetes, Docker, Terraform, GitHub Actions, Jenkins |
| Architecture & Testing | Event-Driven Architecture (Kafka), RESTful, GraphQL, PostGIS, TDD (Unit, Integration, Contract) |
| Observability & Security | Prometheus, Grafana, Datadog, Sentry, OAuth, API Security, SSL/TLS |
- Master of Science (M.Sc.) in Biochemistry and Molecular Biology
- Obafemi Awolowo University, Ile-Ife | 2024 – 2026
- Advanced research focusing on metabolic systems engineering, data modeling, and biochemical mechanics.
- Bachelor of Science (B.Sc.) in Biochemistry and Molecular Biology
- Obafemi Awolowo University, Ile-Ife | 2016 – 2020
- Rigorous training in experimental design, statistical evaluation, and data-driven analysis.
- Full Stack Engineering Advanced Nanodegree
- ALX + Udacity Sponsored Program | 2022
I am open to technical consulting engagements, senior backend/fullstack roles, and architectural partnerships for SaaS platforms.
- LinkedIn: linkedin.com/in/fasunlekehinde
- Email: kfasunle@gmail.com
- Focus Areas: Scalable SaaS Architectures, Event-Driven Systems, Real-Time Platforms, AI-Driven Tooling.
“Envisioning clean, foundational architectures that empower enterprise-grade digital transformation.”