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I am a full-stack engineer with 8+ years building high-performance React and TypeScript applications in regulated financial and government environments. I translate ambiguous business needs into measurable, user-centered solutions and am known for my ability to ship reliable features across cross-functional teams. I enjoy turning complex requirements into maintainable code, driving CI/CD improvements, and mentoring teammates. When I’m not coding, I like exploring new tools and designing elegant front-end architectures that scale with the business.…I am a full-stack engineer with 8+ years building high-performance React and TypeScript applications in regulated financial and government environments. I translate ambiguous business needs into measurable, user-centered solutions and am known for my ability to ship reliable features across cross-functional teams. I enjoy turning complex requirements into maintainable code, driving CI/CD improvements, and mentoring teammates. When I’m not coding, I like exploring new tools and designing elegant front-end architectures that scale with the business.

Yvette Agyei

Full Stack Developer, Front-End Developer, Back-End Developer, +6

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I am a full-stack engineer with 8+ years building high-performance React and TypeScript applications in regulated financial and government environments. I translate ambiguous business needs into measurable, user-centered solutions and am known for my ability to ship reliable features across cross-functional teams. I enjoy turning complex requirements into maintainable code, driving CI/CD improvements, and mentoring teammates. When I’m not coding, I like exploring new tools and designing elegant front-end architectures that scale with the business.…I am a full-stack engineer with 8+ years building high-performance React and TypeScript applications in regulated financial and government environments. I translate ambiguous business needs into measurable, user-centered solutions and am known for my ability to ship reliable features across cross-functional teams. I enjoy turning complex requirements into maintainable code, driving CI/CD improvements, and mentoring teammates. When I’m not coding, I like exploring new tools and designing elegant front-end architectures that scale with the business.

Available to hire

I am a full-stack engineer with 8+ years building high-performance React and TypeScript applications in regulated financial and government environments. I translate ambiguous business needs into measurable, user-centered solutions and am known for my ability to ship reliable features across cross-functional teams.

I enjoy turning complex requirements into maintainable code, driving CI/CD improvements, and mentoring teammates. When I’m not coding, I like exploring new tools and designing elegant front-end architectures that scale with the business.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Fullstack Engineer at Capital One

September 1, 2021 - Present

Architected real-time ATM fleet monitoring dashboards using a split architecture (client-side React and server-side Python/Django APIs) for 1,200+ ATMs, improving page load times by 40% and enabling operations teams to detect outages 3–5 minutes faster. Built reusable React components and shared data-fetching hooks for three micro-frontend apps, reducing code duplication by 35% and cutting feature development time by 30%. Created a Jest-based testing framework, increasing test coverage from 45% to 80% and lowering production bugs by 25% QoQ. Implemented Jenkins CI/CD pipelines, cutting deployment time from 2 hours to 15 minutes and enabling twice as fast feature delivery. Collaborated with PMs and ops to redefine downtime metrics and alert thresholds, reducing false positives by 60%. Integrated AG Grid for real-time data visualization, speeding ATM performance analysis by 50% and reducing mean time to resolution by 20%.

Lead Web Developer at Bank of America

June 1, 2020 - September 1, 2021

Designed standardized SharePoint templates and 12 reusable component libraries for enterprise portals, enabling 15+ teams to launch new portals and reducing setup time from 3–4 weeks to 2–3 days. Standardized scripts, styles, and UI patterns across 15+ internal portals using modular CSS and JavaScript frameworks, reducing UI inconsistencies by 70% and cutting maintenance requests 40% YoY. Resolved critical role-based permission bugs affecting document access for 300+ employees, restoring secure access for compliance-critical workflows. Partnered with 10+ business stakeholders to translate ambiguous requirements into structured portal designs, reducing late-stage change requests by 45% and minimizing rework. Managed 6 portal development projects, delivering all on time with zero compliance violations.

UX Engineer at Booz Allen Hamilton

July 1, 2016 - June 1, 2020

Engineered SharePoint-based document approval workflow system for the Department of Veterans Affairs, reducing manual tracking time by 30% and improving document processing speed for 70+ employees. Designed automated document tracking solution, increasing document completion rate by 10% and reducing administrative overhead by 25%. Diagnosed access-control and data synchronization issues in production SharePoint environments, minimizing downtime to under 2 hours per incident and maintaining 99.5% system availability for 500+ staff. Led a technical liaison between 13 PMs, UX designers, and engineers to translate federal compliance requirements into user-friendly interfaces, reducing redesign cycles by 35%. Delivered technical support and troubleshooting for an 8-member team, resolving 95% of issues within 24 hours.

Senior Software Engineer / Full-Stack Engineer at Capital One

September 1, 2021 - Present

Architected real-time ATM fleet monitoring dashboards using a split architecture (client-side React + server-side Python/Django APIs) for 1,200+ ATMs, improving page load times by 40% and enabling operations teams to detect outages 3-5 minutes faster during critical incidents. Built reusable React components and data-fetching hooks for three micro-frontend apps; created a Jest-based testing framework; integrated Jenkins CI/CD pipelines; refined downtime metrics and alerts to reduce false positives. Integrated AG Grid with real-time data visualization to accelerate ATM analytics.

Full Stack Engineer at Capital One

September 1, 2021 - Present

Led development and architected real-time ATM fleet monitoring dashboards serving 1,200+ ATMs, implementing hybrid client-side aggregation (React) and Python/Django APIs to reduce page load times by 40% and improve incident detection by 3–5 minutes. Designed and implemented a shared component library and data-fetching abstraction layer across 3 micro-frontend applications. Implemented Jest testing to ensure robust code quality and conducted rigorous testing and debugging to maintain application reliability. Integrated dashboards with Jenkins for automated CI/CD pipelines, ensuring seamless deployments and rapid feature delivery.

Full-Stack Engineer at Capital One

September 1, 2021 - Present

Led development and architecture of real-time ATM fleet monitoring dashboards serving 1,200+ ATMs; implemented hybrid client-side aggregation (React) and Python/Django APIs to reduce page load times by 40% and improve incident detection by 3–5 minutes. Designed and implemented a shared component library and data-fetching abstraction layer across 3 micro-frontend applications. Implemented Jest testing to ensure robust code quality and conducted rigorous testing and debugging to maintain reliability. Integrated dashboards with Jenkins for automated CI/CD pipelines, ensuring seamless deployments and rapid feature delivery.

Lead Developer at Capital One

September 1, 2021 - Present

Led development of 12 reusable SharePoint component libraries using React and modular CSS, enabling 15+ teams to launch portals in 2–3 days. Standardized scripts, styles, and UI patterns across 15+ internal portals; resolved critical permission bugs and partnered with 10+ business stakeholders to translate requirements into structured portal designs; managed 6 portal development projects with on-time delivery and zero compliance violations.

Lead Web Developer at Capital One

September 1, 2021 - Present

Led development and architecture of real-time ATM fleet monitoring dashboards serving 1,200+ ATMs. Implemented hybrid client-side aggregation (React) and Python/Django APIs to reduce page load times by 40% and improve incident detection by 3–5 minutes. Designed and implemented a shared component library and a data-fetching abstraction layer across three micro-front-end applications. Implemented Jest testing to ensure code quality and performed robust debugging to maintain application reliability. Integrated dashboards with Jenkins for automated CI/CD pipelines, enabling seamless deployments and rapid feature delivery.