Looking for a job

Henry Chizoba

@hengage

I’m a backend and full-stack software engineer delivering scalable, secure and resilient systems that are nearly fault-tolerant.

Nigeria

Message

What I'm looking for

I’m looking for a team where I can own services end-to-end—building scalable secure systems, improving observability and performance, and collaborating with cross-functional stakeholders on business-critical products, especially in AWS serverless and cloud-native environments.

I’m a Software Engineer with 5+ years of experience designing and shipping scalable, secure, and maintainable systems across fintech, logistics, and SaaS—covering both backend services and full-stack product features. I own services end-to-end, from system design and data modelling to deployment, observability, and incident response, translating complex requirements into reliable, business-focused solutions.

Recently, I redesigned a monolithic file management system into a modular, entity-agnostic service at Carrotsuite—enabling concurrent multi-file uploads, instant file access, and reducing feature integration time by ~80% while preserving 100% backward compatibility. Before that, I led backend architecture at EnsuredNg on AWS serverless (Lambda, DynamoDB, S3), and at Mr Delivery I delivered geospatial real-time rider tracking with WebSockets and proximity-based matching, supported by Redis caching and payment gateway integrations. I’m currently deepening AWS cloud expertise across cloud-native and serverless architectures.

Experience

Work history, roles, and key accomplishments

Current

Backend Engineer

Current

Carrotsuite

Jan 2025 - Present (1 year 5 months)

Redesigned a monolithic file management system into a modular, entity-agnostic service, enabling concurrent multi-file uploads and reducing feature integration time by ~80% while maintaining 100% backward compatibility. Established backend development standards and built a structured error-handling and validation framework, reducing invalid submissions by ~99% and improving paginated query perform

TypeScript Node.Js System Design Cursor Based Pagination Indexing Error Handling NodeJS

Backend Engineer

EnsuredNg

Jul 2024 - Jan 2025 (6 months)

Built an AWS serverless product authentication platform and implemented a barcode/QR scanning pipeline to link physical product seals to authenticated product records for real-time verification. Managed secure S3 image ingestion with lifecycle policies and improved operations and delivery via CloudWatch observability and higher CI/CD quality with GitHub Actions and stricter API input validation.

Node.Js TypeScript AWS Lambda Amazon DynamoDB Amazon S3 AWS Cloudwatch QR Barcode Processing NodeJS

Lead Backend Engineer

Mr Delivery

Aug 2023 - Feb 2024 (6 months)

Designed and delivered core shopping and order processing services, including cart management and order lifecycle/fulfilment state transitions with consistency guarantees. Built real-time rider location tracking using WebSockets with proximity-based rider matching, improved read performance with Redis caching, and integrated First Atlantic Bank Ghana payments with webhook handling and transaction

WebSockets Geospatial Proximity Search Redis Order Lifecycle Design Real Time Tracking Composite Indexing

Backend Engineer

PursCliq

Dec 2022 - Aug 2023 (8 months)

Built and maintained a user wallet microservice using RabbitMQ event messaging with balance mutation consistency guarantees and idempotency keys to prevent double-processing. Automated invoicing and receipt generation (reducing manual billing by 60%), integrated Sematext for performance monitoring/log aggregation, and implemented bulk/personalised SMS notification workflows via an external API.

Node.Js RabbitMQ Application Monitoring (Sematext)NodeJS

Full Stack Engineer

TechPet Engineering Global

Feb 2021 - Aug 2022 (1 year 6 months)

Developed task and goal tracking modules for an LMS, implementing REST API integrations and user-facing components across the platform. Improved UX by restructuring navigation/content and reduced UI inconsistencies by 30% through a shared React component library; implemented authentication using DRF, Simple JWT, and Djoser and added end-to-end testing with Cypress and Jest to reduce production reg