Senior Full Stack Engineer - Web + Java

We are looking for strong Full Stack Engineers to work on large-scale systems. Serving millions of users across web, mobile and connected-TV devices.

The role will be part of the Subscriptions and Payments engineering team and will contribute to building Fire TV In-App Purchase (IAP) capabilities, subscription journeys, entitlement workflows and platform integrations.

You will work on highly scalable consumer-facing systems where performance, reliability, low latency and seamless user experience are critical, particularly during high-traffic events such as live sports and major content releases.

• →Design, develop and maintain scalable full-stack applications using Java and modern web technologies.
• →Build frontend and backend capabilities supporting subscriptions, payments and entitlement management.
• →Develop responsive, performant user experiences using JavaScript/TypeScript and React or similar frameworks.
• →Build and integrate REST APIs and microservices for subscription and payment workflows.
• →Work on Fire TV IAP integration, including purchases, renewals, cancellations and entitlement synchronization.
• →Integrate with external payment providers, app stores and platform APIs.
• →Build resilient systems capable of handling large traffic spikes and high concurrent usage.
• →Improve application performance, availability, monitoring and reliability.
• →Handle failure scenarios, retries, reconciliation and user-state consistency across distributed systems.
• →Collaborate with backend, frontend, product and platform teams to deliver features end-to-end.
• →Write high-quality, maintainable and well-tested production code.
• →Participate in design reviews, code reviews and architecture discussions.

• Strong experience with Java, Spring Boot and RESTful services.

• Strong frontend experience with JavaScript/TypeScript, HTML and CSS.
• Experience with React, Next.js or similar modern frontend frameworks.
• Strong understanding of microservices and distributed systems.
• Experience building high-scale consumer-facing applications.
• Experience with SQL/NoSQL databases.
• Exposure to caching systems such as Redis.
• Experience with messaging/event-streaming technologies such as Kafka is preferred.
• Experience with cloud platforms such as AWS.
• Familiarity with Docker, Kubernetes and CI/CD.
• Good understanding of observability, monitoring and production debugging.

• 7+ years of software engineering experience.
• Strong system-design and architecture experience.
• Experience designing systems for high concurrency, large-scale traffic and high availability.
• Ability to drive complex technical implementations end-to-end.
• Experience mentoring engineers and influencing engineering best practices.

Note: This is a 6-month contractual role.