Open to opportunities

Emmanuel Hagan

@emmanuelhagan

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Senior backend and full-stack engineer specializing in platform, payments, and AI automation.

Ghana

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What I'm looking for

I seek remote roles where I can lead backend and platform initiatives, build AI-driven automation and payments systems, collaborate cross-functionally, and drive scalable, production-grade solutions with opportunities for technical leadership.

I am a Senior Backend and Full-Stack Engineer with 7+ years building scalable web, mobile, and SaaS platforms using PHP (Laravel), Python, and modern frontend technologies. I deliver production-ready systems from concept to deployment and drive continuous improvement.

My work spans high-traffic payment systems, BI platforms, database optimization, and AI-driven automation, including LLM integration and conversational WhatsApp bots. I have a proven record improving performance, increasing payment success, and reducing processing times through API and database optimization.

I thrive in remote, cross-functional teams and Time & Materials delivery models across financial services, retail, telecommunications, and SME-focused solutions, and I prioritize clean code, SOLID principles, TDD, and reliable CI/CD-driven deployments.

Experience

Work history, roles, and key accomplishments

Current

Lead Full-Stack Engineer

Current

Kola Market

Oct 2023 - Present (2 years 3 months)

Led end-to-end delivery of Kola Mobile, Web, and BI SaaS platforms; designed Laravel/Python backend architecture and implemented AI-driven automation and WhatsApp GPT integration, reducing order processing time by 45% and achieving a 98% payment success rate.

PHP Laravel Python MySQL PostgreSQL Redis RESTful APIs Docker CI CD

Backend Engineer

Sovereign Payment Solutions

Jul 2022 - Oct 2023 (1 year 3 months)

Developed Laravel backend services for transaction-heavy payment platforms with secure REST APIs and audit trails; optimized MySQL queries to improve performance by 20% and supported production maintenance and monitoring.

PHP Laravel MySQL RESTful APIs Database Optimization Monitoring & Security CI CD

Full-Stack Developer

Dataware Tech Ghana

Jan 2021 - Dec 2021 (11 months)

Designed and built full-stack platforms supporting data analytics and AI workflows, delivering high-throughput backend APIs and responsive frontend interfaces for analytics use cases.

Python PHP APIs Data Analytics Frontend Development Workflows Performance Optimization SQL RESTful APIs

Senior Full-Stack Engineer

Sensor Web Service

Jan 2020 - Dec 2020 (11 months)

Led development of a PHP service platform from concept to deployment, mentored junior developers, and conducted architecture and code reviews to improve reliability and delivery.