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I'm Mohammed Hassouna, a Senior Frontend Developer with 10 years of experience building fast, accessible, and scalable web applications across cloud-native and enterprise environments. I'm proficient in React, Angular, Vue, TypeScript, and modern UI engineering, delivering pixel-perfect interfaces, optimizing performance for millions of users, and collaborating closely with product and data teams. I also have strong experience with cloud platforms (AWS, Azure), automated testing, CI/CD, and scalable frontend architectures. I enjoy mentoring teammates, improving coding standards, and delivering accessible experiences that meet WCAG AA criteria.…I'm Mohammed Hassouna, a Senior Frontend Developer with 10 years of experience building fast, accessible, and scalable web applications across cloud-native and enterprise environments. I'm proficient in React, Angular, Vue, TypeScript, and modern UI engineering, delivering pixel-perfect interfaces, optimizing performance for millions of users, and collaborating closely with product and data teams. I also have strong experience with cloud platforms (AWS, Azure), automated testing, CI/CD, and scalable frontend architectures. I enjoy mentoring teammates, improving coding standards, and delivering accessible experiences that meet WCAG AA criteria.

Mohammed Hassouna

Web Developer, Front-End Developer, UI Designer, +2

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I'm Mohammed Hassouna, a Senior Frontend Developer with 10 years of experience building fast, accessible, and scalable web applications across cloud-native and enterprise environments. I'm proficient in React, Angular, Vue, TypeScript, and modern UI engineering, delivering pixel-perfect interfaces, optimizing performance for millions of users, and collaborating closely with product and data teams. I also have strong experience with cloud platforms (AWS, Azure), automated testing, CI/CD, and scalable frontend architectures. I enjoy mentoring teammates, improving coding standards, and delivering accessible experiences that meet WCAG AA criteria.…I'm Mohammed Hassouna, a Senior Frontend Developer with 10 years of experience building fast, accessible, and scalable web applications across cloud-native and enterprise environments. I'm proficient in React, Angular, Vue, TypeScript, and modern UI engineering, delivering pixel-perfect interfaces, optimizing performance for millions of users, and collaborating closely with product and data teams. I also have strong experience with cloud platforms (AWS, Azure), automated testing, CI/CD, and scalable frontend architectures. I enjoy mentoring teammates, improving coding standards, and delivering accessible experiences that meet WCAG AA criteria.

Available to hire

I’m Mohammed Hassouna, a Senior Frontend Developer with 10 years of experience building fast, accessible, and scalable web applications across cloud-native and enterprise environments. I’m proficient in React, Angular, Vue, TypeScript, and modern UI engineering, delivering pixel-perfect interfaces, optimizing performance for millions of users, and collaborating closely with product and data teams.

I also have strong experience with cloud platforms (AWS, Azure), automated testing, CI/CD, and scalable frontend architectures. I enjoy mentoring teammates, improving coding standards, and delivering accessible experiences that meet WCAG AA criteria.

Skills

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Work Experience

Senior Frontend Developer at Kirusoft

December 1, 2023 - November 17, 2025

Led development of high-performance React and Vue interfaces powering a cloud-native microservices platform on Azure, serving 2M+ daily transactions with 99.99% uptime. Built reusable UI component libraries with Storybook and automated visual regression tests using Chromatic, improving design consistency by 40%. Optimized frontend performance with lazy loading and CDN-based asset delivery, reducing initial load time by 55%. Collaborated with backend teams to refine REST and gRPC API contracts, improving end-to-end reliability and reducing client-side errors by 35%. Integrated Cypress + Jest for full E2E and unit tests, achieving 90% test coverage and reducing production bugs by 60%. Implemented CI/CD workflows with GitHub Actions for automated build previews and cloud deployments to Azure Static Web Apps. Partnered with product and design to deliver responsive, accessible experiences (WCAG AA compliance). Mentored junior engineers and improved frontend coding standards and documentatio

Senior Software Developer at The University of Texas at Austin

August 1, 2025 - August 1, 2025

Engineered scalable front-end modules in React and Angular for university-wide applications supporting 500K+ concurrent users during peak events. Built AWS-hosted frontend workloads using CloudFront, S3 static hosting, and Lambda@Edge to optimize asset delivery and reduce latency. Translated Figma designs into high-quality, pixel-perfect UI components used across multiple internal platforms. Introduced automated accessibility checks (Axe + Cypress), reducing usability issues by 70%. Worked closely with data science teams to visualize analytics dashboards using React, D3.js, and server-side streamed data. Created Jest-based snapshot tests and integration pipelines that increased release confidence and accelerated QA cycles. Contributed to Agile planning, delivering three major UI releases ahead of schedule.

Senior Frontend Developer at Association of American Geographers

November 1, 2023 - November 1, 2023

Built an interactive mapping platform using Vue + Leaflet delivering real-time geospatial visualization to 1M+ yearly users. Implemented frontend caching strategies using IndexedDB + Service Workers for offline-ready features. Improved MySQL API response handling through client-side batching and memoization, boosting perceived performance 30%. Automated deployments with Docker + GitLab CI, reducing release time and ensuring consistency across staging environments. Integrated ELK-based logging into the frontend to improve monitoring of UX issues.

UI/UX Software Engineer at Charter Communications

December 1, 2021 - December 1, 2021

Developed telecom network management interfaces using Angular and TypeScript with a focus on real-time updates and high data density. Performed extensive browser performance profiling, achieving sub-second UI response times across complex dashboards. Built secure UI modules consuming legacy Node.js APIs, improving workflow efficiency for 10K+ technicians. Participated in Agile sprints and contributed to design reviews, consistently meeting delivery timelines.

Junior Frontend Developer at Mayo Clinic

March 1, 2020 - March 1, 2020

Built HIPAA-compliant patient-facing interfaces using React and secure API integrations. Implemented Django-backed frontend features with optimized API consumption for high-traffic medical operations. Assisted cloud migration by containerizing frontend workloads and deploying them to AWS. Improved UI accessibility and color-contrast compliance for patient portals.

Junior Frontend Developer at Capital One

February 1, 2019 - February 1, 2019

Delivered responsive and performant React experiences, improving digital banking engagement metrics. Collaborated with Java backend teams to streamline REST API consumption and improve transaction visibility. Built internal monitoring tools using Python + React, reducing manual operational tasks by 50%.

Engineer Intern at Google

May 1, 2017 - May 1, 2017

Built AngularJS and React interfaces for internal customer platforms, increasing engagement by 25%. Integrated Google Maps, Stripe, and PayPal APIs with rich client-side experiences. Assisted in migrating data services from MySQL → PostgreSQL, improving frontend query performance by 60%. Contributed to Jenkins CI pipelines for automated UI builds and pre-release testing.