Olaoluwa Benjamin Fatolu
Full-stack engineer with 4+ years building scalable backends, real-time data pipelines, and payment infrastructure across fintech and Web3. Ships systems handling 10k–50k+ daily events at 99.9% uptime with <20 s latency.
Experience
Full-Stack / Backend Engineer
Nahmii AS
Built event-driven backend processing 10k–25k+ daily events with <20 s latency, improving data availability ~70%. Implemented idempotent transaction & retry-safe workflows for payment/staking; reduced failed ops 25–30%. Introduced Redis caching, cutting API latency 50–70%; rate limiting defended against traffic spikes. Supported $500K+ TVL, 1k–3k MAU, 99.9% uptime, ~35% throughput improvement.
Full-Stack Engineer
ChangeDAO
Delivered NFT fundraising platform with 90%+ retention, 500–1,500 active users. Optimised Mongo DB queries 75% faster (800 ms → <200 ms); implemented Redis cache-aside strategy. Designed idempotent minting & governance flows; async processing eliminated API blocking.
Backend Engineer
Web3 Bridge
Built retry-safe contract integration systems; reduced gas costs 20–35%. Mentored engineers cutting onboarding time ~50%; built modular components for rapid prototyping.
Education
University of Ilorin
B.Sc
Web3 Bridge
Blockchain Bootcamp
Skills
ReactNext.jsTypeScriptREST API IntegrationNode.jsGoREST APIsJWT/RBAC AuthIdempotencyRetry/BackoffSQLPostgreMongoDBRedisETL PipelinesWebSocketsPub/SubLive Data PipelinesDockerCI/CDLogging & MonitoringEthers.jsWeb3.jsSubgraphsSolidity
PROJECT HIGHLIGHTS
Crypto Payment Infrastructure
Processed 200–1,000+ txns/day with <60 s settlement visibility. Idempotent payment flows & reconciliation pipelines; ~70–80% less manual ops.
Real-Time Analytics System
Indexed 10k–50k+ events/day for live monitoring and reporting. Improved reporting performance by 60–75% via query & caching strategies.