Henry Chukwuemeka Ihenacho

Github | henrychris2003@gmail.com | Linkedin | Medium

Education

Covenant University — Ogun, NG
Bsc. Management Information Systems
Aug 2022

Work Experience

BrosPhoneParts

Backend Engineer | Nov 2024 - Present | New York, US

Implemented a comprehensive product import/export feature with real-time progress tracking via WebSockets, background processing for large files, and robust CSV validation.
Optimized a critical customer data endpoint by replacing an N+1 query pattern with a single MongoDB aggregation pipeline, reducing database queries from 200+ to 1 and cutting P90 response time to under 1.6 seconds.
Dramatically improved developer productivity by re-architecting the build process with SWC, slashing project transpilation times from over 90 seconds to under 2 seconds.

Lights On Heights (Limestone)

Lead Backend Engineer | Feb 2024 - Sep 2024 | Lagos, NG

Led migration to Limestone 2.0, transitioning from a monolith to a microservices architecture using C# and a custom-built NATS library for inter-service communication
Configured a local Docker environment to run Limestone 2.0 during a lengthy API gateway downtime, enabling continuous frontend and mobile development and saving 4 weeks of development time
Integrated Azure App Configuration for centralized configuration management, enhancing security by removing secrets from workflow files and streamlining developer onboarding
Setup observability and monitoring using Azure App Insights, Serilog, and OTEL.

ErrandPay

Backend Engineer | Feb 2023 - Oct 2023 | Lagos, NG

Developed a reusable service for partner onboarding using C#, reducing onboarding time from 1 day to 2 minutes
Improved webhook notification reliability by implementing the Outbox pattern in C#, eliminating customer complaints about notification drop-offs, previously occurring twice weekly
Automated monthly goal-alignment reporting by converting manual SQL scripts to C# code, ensuring timely, accurate data for meetings and saving hours of manual effort
Optimized user profile and dashboard requests both in C# and SQL stored procedures, leading to near-instant page load times and eliminating frequent reloads due to timeouts

Fuelmetrics

Backend Engineer - Internship | May 2021 - Oct 2021 | Lagos, NG

Built an API using .NET and iText7 to automate PDF report generation across the company portal, improving report accuracy and reducing manual effort
Developed and hosted a Telegram bot using .NET and Heroku, allowing users to access the company portal directly from Telegram, enhancing user engagement

Projects

QSet

Project Link

A tool for football players in my country to manage their games. Currently live with 20 users a week.

Technical Skills

Languages: C#, TypeScript, JavaScript, HTML, SQL, C, CSS
Frameworks: .NET, Express, Fastify, Svelte
Other Technologies: Azure, Docker, RabbitMQ, NATS, FusionAuth, Node, Bun, OpenTelemetry, GitHub Actions