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Backend Engineer (Node.js | Go | Distributed systems). 3+ years building production-grade APIs, distributed job systems, and event-driven architecture. Building AI agents, infrastructure & tooling. Built OctoRouter…

Godwin Alexander

Back-End Developer, Full Stack Developer, Developer, +2

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Backend Engineer (Node.js | Go | Distributed systems). 3+ years building production-grade APIs, distributed job systems, and event-driven architecture. Building AI agents, infrastructure & tooling. Built OctoRouter…

Available to hire

Backend Engineer (Node.js | Go | Distributed systems). 3+ years building production-grade APIs, distributed job systems, and event-driven architecture. Building AI agents, infrastructure & tooling. Built OctoRouter

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Work Experience

Backend Engineer at Resihub

March 1, 2024 - August 1, 2025

Built scalable backend architecture and APIs from scratch for a property advertisement platform with a user app and an admin dashboard. Optimized ad analytics by implementing Redis caching and BullMQ background aggregation of 20K+ ad activities. Introduced advertiser visibility through a priority-based ad rotation algorithm managing lifecycle, expiration, and budget allocation.

Backend Engineer at Portaul

July 1, 2024 - March 1, 2025

Architected secure messaging infrastructure supporting encrypted personal and group conversations. Built a PostgreSQL database with encrypted sensitive columns using the Pgcrypto module, ensuring GDPR compliance. Developed an advanced authentication system with MFA, token rotation, device recognition, and remote logout. Implemented end-to-end chat encryption using AES-256-GCM symmetric encryption and asymmetric key pairs.

Backend Engineer at SMC Dao and Papdesk

October 1, 2023 - April 1, 2024

Addressed critical video streaming challenges for a smoother user experience. Engineered optimized aggregations for user badge assignments, and led troubleshooting and optimization efforts reducing server load times and bolstering system performance for high-volume transactions. Integrated Paystack API, queues, and pub-sub mechanisms to process user payments and subscriptions. Implemented AWS Lambda with S3 for video processing using FFMPEG to reduce load on the main server.