Oliver – Typescript, Golang, React

A proprietary Radiology Information System deployed for a multi-facility healthcare provider in Ghana.

• Architected and built SpectraRIS for Meridian Health Systems Ltd.
• Designed and operated a Go microservices backend with PostgreSQL, NATS JetStream event messaging, Docker, AWS, and Cloudflare Zero Trust networking.
• Led a full infrastructure migration to a new hosting environment with a live zero-downtime cutover, including PostgreSQL database migrations, S3 object transfer, and DNS/SSL reconfiguration.
• Built DICOM imaging integration, including a modality worklist server, DICOM gateway, and OHIF viewer with JWT-based role access control.
• Delivered task management, campaign messaging, PDF report generation, and real-time notification systems supporting clinical operations across multiple facilities.

A cybersecurity solution safeguarding Critical National Infrastructure (CNI) and Operational Technology (OT) environments across the energy, utilities, and transport sectors.

• Designed, developed, and maintained high-performance Golang microservices powering the Phoenix Platform.
• Engineered secure and scalable APIs enabling communication between distributed services, edge devices, and cloud-based components.
• Implemented secure-by-design backend capabilities, including authentication, authorization, input validation, and threat mitigation controls.
• Collaborated with cybersecurity specialists, DevSecOps engineers, and product stakeholders to translate OT security requirements into reliable software solutions.
• Conducted peer code reviews and championed engineering standards to improve code quality, maintainability, and knowledge sharing.

A job portal of a UK-based software and information technology company specializing in the design and deployment of bespoke applications to streamline business operations.

• Led the design and development of the entire frontend for job portal from scratch using Next.js.
• Utilized Docker for containerization and PHP for backend services to support scalable deployments.
• Acted as a Dev Evangelist by writing technical blogs and preparing video tutorials.
• Implemented CI/CD pipelines to automate deployment and support reliable software releases.

A social impact company that provides a cross-border health insurance marketplace. It allows immigrants living in countries such as the US, Canada, and the UK to directly purchase and manage private health insurance policies for their loved ones in their home countries.

• Led the design and development of enterprise-level web applications using Next.js, React, Vue.js, Golang, Node.js, Typescript, and Nest.js.
• Designed and implemented scalable microservice APIs and background workers using Node.js, Nest.js, Golang, and MongoDB.
• Implemented Kafka-based service-to-service event messaging across the microservice architecture.
• Provided technical leadership and mentored a high-performing development team.
• Implemented a robust CI/CD pipeline with code reviews, load and stress testing, and unit, integration, and e2e testing.

A financial technology and housing platform that eliminates the burden of large, multi-year rent advance payments. They pay the upfront rent in full directly to the landlord, allowing tenants to repay it in flexible, manageable monthly installments.

• Single-handedly built the client and admin portals using Next.js and React.
• Created a Progressive Web App for the client portal to improve accessibility and engagement across devices.
• Significantly improved application performance, resulting in faster load times and increased user satisfaction and retention.

A custom software development and technology company. They partner with businesses to build web and mobile applications, offering end-to-end services from market research and idea validation to software engineering, cloud integration, and product design.

• Developed a company-wide Authentication and File Upload service integral to all microservices using Nest.js, Django, and Golang.
• Used RabbitMQ and Kafka for asynchronous event processing across the authentication service.
• Ensured secure and efficient data management across the organization.
• Used RabbitMQ and Kafka for asynchronous event processing across the loyalty system built for Parallex Bank.
• Led backend development for the Parallex Bank loyalty system using Nest.js, Django, Python, Java, and Golang.
• Enhanced customer engagement and loyalty through backend system development.