# Kelvin De Los Angeles > Senior Software Dev Engineer @Roon Location: Nanuet, New York, United States Profile: https://flows.cv/kelvindelosangeles I am Kelvin De Los Angeles, a software engineer with over seven years of web development experience and a former tennis pro. I specialize in building responsive, accessible, and performant single-page applications (SPAs) using React, Next.js, Node.js, and other modern technologies. My passion is to create beautiful and user-friendly products that solve real-world problems and delight customers. I have led and collaborated with talented design and development teams across various domains, such as media, e-commerce, and hospitality. Most recently, I played a key role in the migration and rebuilding of Complex.com within BuzzFeed's infrastructure, designing front-end architecture for a suite of microservices and contributing to a Netflix-inspired platform for Complex's Original Shows. I am always eager to learn new skills and stay updated with the latest industry trends and best practices. I am currently seeking new opportunities to leverage my expertise and grow as a software engineer. ## Work Experience ### Senior Software Dev Engineer @ Roon Jan 2024 – Present | New York, New York, United States ### Technical Interviewer @ Scale AI Jan 2023 – Jan 2024 | United States ### Senior Software Dev Engineer @ Yahoo Jan 2023 – Jan 2023 | New York, United States • Partnered with cross-functional teams to develop a platform tailored for individual contributors at Yahoo News. • Worked with the design team to create and implement a component library. • Actively participated in daily stand-ups and contributed to the planning of bi-weekly sprints. ### Front End Engineer @ BuzzFeed Jan 2022 – Jan 2023 | New York, New York, United States • Played a key role in the migration and rebuilding of Complex.com within BuzzFeed's infrastructure post-acquisition. • Designed front-end architecture for a suite of microservices, employing Storybook and Atomic design principles. • Contributed in a full stack capacity to create a Netflix-inspired platform for Complex's Original Shows. Leveraged Next.js for server-side rendering and static site generation (SSG). • Implemented efficient API data consumption patterns for server-side rendering (SSR) and client-side rendering (CSR) across microservices. • Optimized web applications for accessibility, ensuring adherence to industry standards and guidelines. ### Front End Engineer (Acquired) @ Complex Networks Jan 2021 – Jan 2023 | New York, New York, United States • Led end-to-end development of SPAs using React and Redux, encompassing design, implementation, testing, and global state management. • Designed and engineered CMS tools using Next.js, tailored to enhance content management efficiency for the Editorial Team. • Improved site performance with a focus on Core Web Vitals, leading to accelerated load times and enhanced user experiences. • Engaged in technical brainstorming sessions and conducted comprehensive code reviews. • Revitalized a legacy codebase by addressing bugs, introducing new features, and modernizing components. ### Full Stack Engineer @ Bevapp Jan 2018 – Jan 2021 | Greater New York City Area • Took on dual roles as Developer and Project Manager to create a suite of automated tools, enhancing workflows. • Designed and modeled real-time NoSQL databases, leveraging Firebase Firestore for optimal performance and efficiency. • Engineered solutions for a range of internal and customer-facing applications. • Designed and executed responsive Single Page React Applications (SPA) for order management, analytics, and reporting. • Developed a mobile app using React Native for order entry. • Documentation and reports for all stages of product life cycles. ### Front End Engineer @ Templay Jan 2020 – Jan 2021 | Istanbul, Turkey • Participated in an entrepreneurship program hosted in Istanbul, Turkey, where I spearheaded the development of a website builder aimed at smaller businesses in the region. • Utilized Atomic design methodology to create a versatile and reusable component library. • Designed user-friendly and responsive templates using contemporary CSS and JavaScript libraries. • Developed comprehensive unit tests to ensure code quality and reliability. Additionally, conducted A/B testing to optimize user experience and performance. ### Front End Engineer @ hipicon.com Jan 2020 – Jan 2020 | Istanbul, Turkey • Led the front-end initiative in facilitating the company's migration from an HTML/PHP environment to a React front-end. • Server-side Rendering (NEXT JS) • Search Engine Optimization (SEO) • API Consumption • Front-end architecture and documentation • Atomic Design File System • UX/UI Design ### Enjoy (Support) @ Enjoy Technology, Inc. Jan 2016 – Jan 2016 | Greater New York City Area • Managed case files through Zendesk, • Processed inbound and outbound technical support calls and live chats. • Resolved customer tickets and concerns with strong communication and problem solving skills ### Expert (Technical Configuration Expert) @ Enjoy Technology, Inc. Jan 2015 – Jan 2016 | Greater New York City Area • Contributed to the development and growth of 2015s highest funded startup • Produced 5 out 5 stars in customer ratings for a consecutive 8 months • Assisted in the expansion of the New York offices ### Specialist @ Apple Jan 2013 – Jan 2015 | Greater New York City Area • Workshops – I hosted personal setup workshops for customers with new products. • Sales – Assisted customers in determining the right product solutions. • Mentor/Training – On-boarding for new hires and transfers ## Education ### Master of Arts (MA) in International Crime And Justice John Jay College (CUNY) Jan 2014 – Jan 2018 ### Bachelor of Arts (B.A.) in Forensic Psychology John Jay College (CUNY) Jan 2007 – Jan 2012 ## Contact & Social - LinkedIn: https://linkedin.com/in/kelvin-de-los-angeles --- Source: https://flows.cv/kelvindelosangeles JSON Resume: https://flows.cv/kelvindelosangeles/resume.json Last updated: 2026-03-22