Software Engineer II, Client Platform

Why Sony Interactive Entertainment?

Sony Interactive Entertainment isn’t just the Best Place to Play — it’s also the Best Place to Work. Sony Interactive Entertainment (SIE) is the company behind the Play Station brand. As a subsidiary of Sony Group Corporation, we’re part of a proud legacy of innovation and excellence. SIE is a dynamic technology company, delivering cutting-edge hardware and network services to more than 100 million people and an entertainment leader, home to some of the most beloved and recognizable intellectual properties (IP) in the world.

Our role at SIE is to create and nurture the experiences under the Play Station brand, a name synonymous with entertainment excellence and creativity.

San Mateo - Hybrid

Play Station isn’t just the Best Place to Play — it’s also the Best Place to Work. Today, we’re recognized as a global leader in entertainment, producing the Play Station family of products and services including Play Station®5, Play Station®4, Play Station®VR, Play Station®Plus, acclaimed Play Station software titles from Play Station Studios, and more.

Play Station strives to create an inclusive environment that empowers employees and embraces diversity. We welcome and encourage everyone who has a passion and curiosity for innovation, technology, and play to explore our open positions and join our growing global team. The Play Station brand falls under Sony Interactive Entertainment, a wholly owned subsidiary of Sony Corporation.

As a Software Engineer II on the Client Platform team, you’ll play a key role in building the next generation of Play Station experiences. You’ll collaborate with talented engineers and designers to craft intuitive, performant, and beautiful cross-platform applications that reach millions of players around the world. This team builds the core application framework, shared libraries, and foundational components that other product and feature teams rely on to deliver Play Station experiences to millions of users worldwide.

You’ll work with senior engineers to design and maintain the underlying systems that make Play Station applications fast, scalable, and consistent across environments - giving other teams the tools and flexibility to innovate. This is your chance to help shape how players connect, discover, and engage across the Play Station ecosystem - from concept to launch and beyond.

• Design, develop, test, and document React-based cross-platform applications that deliver seamless and consistent user experiences.
• Collaborate with Product Owners and Product Managers to translate feature requirements into scalable, maintainable solutions.
• Partner with cross-functional teams to define architecture and ensure best practices for performance, accessibility, and reliability.
• Write comprehensive unit and component tests to maintain product quality and prevent regressions.
• Participate in peer reviews and provide constructive feedback on design and implementation.
• Continuously improve development workflows and contribute to evolving engineering standards.
• Explore innovative ideas and emerging technologies through Hackathons and Café Days to help drive future Play Station experiences.

• Bachelor’s degree in Computer Science or a related field, or equivalent professional experience.
• 4+ years of development experience building user-facing applications or systems using JavaScript/Type Script.
• Strong proficiency in React and related tools and libraries.
• Demonstrated experience creating and maintaining cross-platform applications.
• Strong problem-solving skills and attention to quality.
• Excellent communication and collaboration skills in a distributed team environment.
• Hands-on experience with modern build and testing tools such as Webpack, Babel, Jest, or similar.
• Familiarity with GraphQL, RESTful APIs, and containerization (e.g., Docker).
• Experience with CI/CD pipelines and automated testing frameworks.
• Understanding of performance optimization, accessibility, and responsive design principles.
• Interest or experience in applying AI/ML concepts to enhance user experiences - such as…