Senior Application Security Engineer

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-edges 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.

Do you want to help bring Play Station technology to a worldwide audience? Are you passionate about securing infrastructure that constantly pushes the boundary of the gaming industry? Are you ready to work with innovative technology, forward-thinking engineers, and a passionate security team? If so, join us!

The role is a senior-level application security position combining strong technical expertise with leadership, initiative, and collaboration. You will provide strategic mentorship and hands-on support in designing, implementing, and testing secure solutions that strengthen Play Station products and services.

As a technical leader within Product Security, you’ll guide practices and influence multiple teams to embed security throughout the software development lifecycle.

• Lead security initiatives across the SDLC and improve development practices through scalable automation.
• Conduct and guide threat modeling and security requirements early in design phases.
• Partner with developers, architects, and product managers to align business goals with security needs.
• Lead security architecture and code reviews for distributed systems.
• Perform hands-on testing to identify risks and drive remediation with vulnerability and incident response teams.
• Advance the Product Security strategy through multi-functional initiatives and cultural influence.
• Balance business and security risks through technically grounded, pragmatic recommendations.
• Translate lessons learned into reusable organizational assets that enhance overall security posture.
• Mentor engineers and practitioners, promoting secure-by-default thinking and shared accountability.
• Demonstrate proactive leadership, coordinating teams to deliver measurable security and business impact.

• 7+ years in information security and 3+ years in software development.
• Bachelor’s degree or equivalent in Computer Science, Information Security, or related field.
• Effective communication and leadership abilities; capable of influencing technical and non-technical collaborators including management.
• Dedicated and proactive, finding opportunities and leading initiatives independently.
• Deep understanding of enterprise and cloud-native architectures and their secure design.
• Expertise in network and web protocols (TCP/IP, TLS, HTTPS, OAuth 2.0, OpenID Connect) and common attack vectors.
• Proven expertise in guiding security development and code evaluations and providing actionable, risk-based recommendations.
• Experience integrating SAST, DAST, and dependency scanning into CI/CD pipelines.
• Familiar with Agile, Dev Ops, and modern delivery practices.
• Hands-on experience with cloud technologies (AWS, Azure, GCP, Kubernetes, service mesh, CDN) including secure configuration and identity management.

• Strong analytical and problem-solving skills with an attacker perspective — able to anticipate and simulate real-world attacks.
• Experience in penetration testing, automated testing, or testing frameworks (JUnit, pytest, REST Assured, Playwright).
• Security certifications…