Salim Imuzai
@salimimuzai
Backend engineer building scalable APIs, microservices, and real-time systems with Node.js.
NigeriaWhat I'm looking for
I build backend APIs, microservices, and real-time systems with Node.js and TypeScript—then back it up with clean architecture, performance work, and production monitoring. At Guọnọ, I delivered dictionary search APIs and improved lookup latency using PostgreSQL indexing plus Redis caching.
At Loose Digital, I supported an investment platform for 250+ Nigerian businesses and 120+ investors. I built secure document-sharing and deal-room APIs, and added Socket.io real-time messaging for live investor–business communication.
Earlier contracts include attendance automation with Amazon Rekognition and scheduling/overtime services, plus secure access with JWT and RBAC. I also shipped invoice generation and Paystack payment workflows, and used Redis-backed real-time notifications for assignments and academic events.
Experience
Work history, roles, and key accomplishments
Backend Engineer
Guọnọ
Oct 2025 - Present (11 months)
Built dictionary search APIs handling 10,000+ daily lookups using PostgreSQL indexing and Redis caching to reduce lookup latency. Designed Redis caching and optimized database indexing strategies that increased dictionary service throughput 3×.
Backend Engineer
Loose Digital
Sep 2024 - May 2025 (8 months)
Developed backend APIs powering an investment platform used by 250+ Nigerian businesses and 120+ investors. Built secure document-sharing and deal-room services supporting due diligence workflows across 75+ active deals.
Backend Engineer
Ihifix
Aug 2022 - Oct 2024 (2 years 2 months)
Designed scalable PostgreSQL schemas for student and teacher records to improve data retrieval performance. Built automated invoice generation and payment reminder workflows integrated with Paystack APIs.
Backend Engineer
BCA Healthcare Ltd
Aug 2022 - Oct 2023 (1 year 2 months)
Developed facial-recognition attendance APIs using Amazon Rekognition to automate employee check-ins. Built scheduling and overtime-tracking services to automate employee attendance calculations.
Education
Degrees, certifications, and relevant coursework
Auchi Polytechnic
Higher National Diploma, Computer Science
2017 - 2019
Higher National Diploma in Computer Science from Auchi Polytechnic from 2017 to 2019.
Tech stack
Software and tools used professionally
Availability
Location
NigeriaAuthorized to work in
Job categories
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