Available to hire
Hi, I’m Jeffrey Owusu Ansah, a passionate software developer based in Liverpool, UK. I specialize in front-end and full-stack development with a strong focus on React, Next.js, and Typescript. I love creating scalable and user-friendly web applications that improve business outcomes and user experience.
Over the years, I’ve worked remotely and onsite with innovative tech companies in healthcare, finance, and saas sectors. I’m a strategic thinker who enjoys collaborating with designers and cross-functional teams to deliver high-quality products that meet real-world needs.
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Language
English
Fluent
Work Experience
Front End Developer at HBSUK
April 1, 2025 - October 7, 2025Developed a Next.js-based medtech platform that connects patients directly with specialized consultants, reducing NHS GP wait times and improving access to specialized care across MSK, dentistry, and ophthalmology services. Implemented comprehensive A/B testing frameworks optimizing patient onboarding flow, resulting in increases in consultation bookings and reduced form abandonment. Collaborated with UX designers to enhance accessibility standards, improving WCAG compliance from B to AA. Integrated third-party APIs for secure patient data management and consultant scheduling, reducing appointment booking errors by 25% while maintaining GDPR compliance.
Full Stack Engineer at Goldman Sachs
September 1, 2024 - January 31, 2025Built and deployed a React-based risk monitoring system to organize and visualize risk instances across firmwide applications. Developed custom Node.js scripts to automate dependency management and validate build outputs, improving process efficiency and reducing manual interventions by 30%. Collaborated with cross-functional teams to implement risk remediation strategies, resulting in a 45% reduction in remediation task time. Refactored microservices to enhance scalability, reliability, and integration with regulatory reporting. Optimized SQL queries for risk metrics, reducing execution time by 30%.
Full Stack Developer at GAPHealth
February 1, 2024 - July 31, 2024Engineered AWS cloud storage solutions optimizing healthcare data retrieval and reducing latency by 30%. Built a React provider dashboard using TanStack Query for efficient server state management, cutting network latency by 40%. Collaborated on a cross-platform React Native patient engagement app using Redux, increasing user retention by 35% and reducing crash rates by 20%. Provided technical support for mobile app patients, reducing support tickets by 20%.
Full Stack Developer at Neocardinal Limited
April 1, 2021 - December 31, 2023Implemented advanced data-fetching strategies with React Query to reduce network latency by 50% and improve user experience. Utilized Docker and Kubernetes to orchestrate microservices, reducing release cycles by 30%. Designed and implemented SSR and SSG workflows with Next.js for improved SEO, tripling organic traffic. Collaborated with designers to revamp UI using TailwindCSS and lightweight UI kits, reducing CSS bundle size by 60% and enhancing developer workflow.
Front End Engineer at Documatic
May 1, 2022 - August 31, 2022Optimized bundle size and runtime performance of the flagship landing page using Next.js, improving load times by 60% and reducing churn. Built and maintained the company's AI-powered engine with Typescript, enhancing software development team efficiency. Utilized cloud technologies like S3, EC2, Lambda, and IAM, improving system performance by 25% and security. Designed and executed 40+ end-to-end Cypress tests identifying performance bottlenecks, increasing concurrent user handling capacity by 20%.
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Industry Experience
Software & Internet, Healthcare, Financial Services, Professional Services
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