![Ronan Murphy](https://jobicy.com/react/themes/app/images/avatar.jpg) Ronan Murphy # Senior Software Engineer Actively looking · Member since 20 Oct 2025 [Message](https://jobicy.com/dashboard-page.md) ShareLocationIrelandDesired salaryfrom 30 USD/hourlyWork preferenceFull TimeExperience levelNot set * [Overview](#overview) * [Portfolio 0](#portfolio) * [Services 0](#services) ## About Professional summaryI am a Senior Software Engineer with over a decade of experience in designing, developing, and optimizing high-performance web applications. My expertise lies in building scalable architectures, enhancing performance, and implementing security best practices. I am proficient in Java, Spring Boot, React, JavaScript, Next.js, Docker, MySQL, Git, PHP, and cloud-native microservices. Throughout my career, I have demonstrated the ability to improve user retention significantly and contribute to substantial annual revenue growth. I am passionate about mentoring junior engineers, fostering collaboration, and driving technical innovation within teams. I enjoy solving complex problems and delivering high-quality, scalable software solutions that align with business objectives. In my recent role at Tyk, I led the design and optimization of scalable web applications serving over one million users, revamped CI/CD pipelines to reduce deployment times drastically, and architected microservices infrastructure to improve modularity and reduce downtime. I have integrated Java-based microservices for internal tooling and maintained legacy Java modules to unify access management. Previously, I worked at NetWatch Global, where I engineered scalable systems for a high-traffic e-commerce platform, led front-end modernization initiatives, and enhanced cloud infrastructure reliability using AWS and Docker. I have also contributed to backend migrations and developed advanced caching mechanisms to improve real-time analytics. Earlier in my career at Capventis and Cesanta, I designed and maintained mission-critical web applications, implemented scalable microservices architectures, and developed reusable UI components. I have experience working with various frontend and backend technologies, improving application performance, and supporting accessibility initiatives. I am committed to continuous learning and staying updated with the latest technologies to deliver innovative solutions. I thrive in cross-functional teams and enjoy aligning engineering efforts with key business goals to maximize impact. ## Skills 25 capabilities[AWS](https://jobicy.com/talent/aws.md)[Azure DevOps](https://jobicy.com/talent/azure-devops.md)[CI CD](https://jobicy.com/talent/ci-cd.md)[Cypress](https://jobicy.com/talent/cypress.md)[Django](https://jobicy.com/talent/django.md)[Docker](https://jobicy.com/talent/docker.md)[Git](https://jobicy.com/talent/git.md)[Java](https://jobicy.com/talent/java.md)[JavaScript](https://jobicy.com/talent/javascript.md)[Kafka](https://jobicy.com/talent/kafka.md)[Kotlin](https://jobicy.com/talent/kotlin.md)[Laravel](https://jobicy.com/talent/laravel.md)[Material UI](https://jobicy.com/talent/material-ui.md)[MongoDB](https://jobicy.com/talent/mongodb.md)[MySQL](https://jobicy.com/talent/mysql.md)[Next.js](https://jobicy.com/talent/next-js.md)[Nginx](https://jobicy.com/talent/nginx.md)[PHP](https://jobicy.com/talent/php.md)[PostgreSQL](https://jobicy.com/talent/postgresql.md)[Python](https://jobicy.com/talent/python.md)[React](https://jobicy.com/talent/react.md)[Redis](https://jobicy.com/talent/redis.md)[Redux](https://jobicy.com/talent/redux.md)[Spring Boot](https://jobicy.com/talent/spring-boot.md)[TypeScript](https://jobicy.com/talent/typescript.md) ## Experience Career history ### Senior Software Engineer · Tyk 03/2023 – 06/2025Led design, development, and optimization of scalable web applications using React.js, Next.js, Node.js, and Django for over one million users. Revamped CI/CD pipelines with GitHub Actions, Travis, and Docker reducing deployment times by 80% and tripling release frequency. Architected microservices infrastructure enhancing modularity and reducing downtime by 25%. Integrated Java-based microservices (Spring Boot) for internal tooling and auth APIs. Maintained legacy Java modules handling SSO and permissioning logic. Conducted over 500 code reviews and introduced test-driven development increasing team productivity by 40%. Collaborated with product and design teams to improve UI/UX, increasing user engagement by 50%. Developed cost-efficient serverless solutions on AWS reducing infrastructure costs by 35%. Integrated security best practices including authentication and data encryption. Mentored junior engineers and engaged in cross-functional strategy discussions. ### Senior Full-Stack Developer · NetWatch Global 03/2020 – 02/2023Engineered scalable systems for a high-traffic e-commerce platform optimizing API performance by 30% with microservices architecture using Node.js, Express, and AWS Lambda. Led front-end modernization migrating to React and Redux decreasing load times by 25%. Migrated backend reporting tools from Python to Java + Spring Boot. Developed advanced caching mechanism using Redis and PostgreSQL reducing query latency by 40%. Enhanced cloud infrastructure reliability with AWS, Docker, and Jenkins enabling zero-downtime deployments. Mentored junior developers and collaborated with product and design teams to accelerate feature delivery by 20%. ### Full-Stack Developer · Capventis 10/2017 – 02/2020Designed and maintained mission-critical web applications using Python (Django, Flask) and JavaScript ensuring 99.9% uptime and reducing response times by 50%. Implemented scalable microservices architecture decreasing operational overhead by 40% and reducing deployment failures by 35%. Optimized application performance with advanced caching strategies reducing average load time from 4s to 1.5s. Developed 15+ RESTful APIs improving data flow efficiency by 45%. Collaborated with Java backend teams (Spring Boot and Kotlin) to define API contracts and error handling. Built AI-powered fraud detection tool reducing fraudulent transactions by 70%. ### Frontend Developer · Cesanta 07/2013 – 09/2017Built responsive, high-performance web applications improving page load speed by 50% and mobile responsiveness by 80%. Collaborated with senior developers to optimize frontend performance. Migrated legacy frontend systems to React and TypeScript reducing bug reports by 35%. Assisted in migrating React component library to TypeScript improving code maintainability and reducing runtime errors by 30%. Developed over 30 reusable UI components enhancing development efficiency and reducing build time by 40%. Implemented automated testing frameworks reducing frontend bugs by 45% and increasing code coverage by 60%. Contributed to accessibility initiatives supporting WCAG compliance and expanding user reach by 20%. ## Education Learning history ### Trinity College Dublin 09/2009 – 06/2013Bachelor's degree in Computer Science Algorithms & Data Structures, Software Engineering, Cloud Computing This professional hasn’t added portfolio projects yet. This professional hasn’t listed any services yet.