Senior Software Engineer

Job Details:

• Role - Software Development Engineer II
• Location – London, UK
• Type: Onsite – 5 days per week
• Duration : 12 Months
• Start Date : ASAP

Requirements:

• Top Must-Haves: Java, Kotlin and TypeScript

Job Description:

We are hiring an L5 Software Development Engineer (contractor) in London to join the Prime Video Edge Platform team.

The Edge Control team accelerates builders by centralising undifferentiated effort, providing a suite of capabilities to safely control and configure Prime Video clients. We ensure client interactions with Prime Video's global infrastructure are reliable, cost-efficient, measurable, and fast. Our services enable safe management and release of client configurations, delivery of push notifications, and power the end-to-end observability and intelligent client-driven traffic routing with automated failover capabilities. We accelerate teams across Prime Video in deploying native AI solutions through providing a remote platform to rapidly and reliably host remote MCP tools.

You will work within the Edge Control team to build and operate mission-critical services using AWS-native technologies at scale.

What You'll Do

• Design, build, and extend features to the remote MCP platform to accelerate Prime Video teams
• Work on Operational Efficiency and maintaining availability and security
• Participate in on-call rotations and operational excellence practices

Basic Qualifications

• Professional software development experience
• Proficiency with Java, Kotlin and TypeScript
• Experience designing and building distributed systems or backend services
• Experience with cloud infrastructure (AWS — e.g., Ec2, NLB, ElastiCache, Lambda, DynamoDB)
• Experience with infrastructure-as-code (AWS CDK)
• Strong understanding of networking fundamentals (DNS, HTTP/TLS, load balancing)
• Experience operating and maintaining production software, including monitoring, alarming, and incident response
• Linux/UNIX proficiency (command-line tools, shell scripting)

Preferred Qualifications

• Experience with high-throughput, low-latency systems at scale
• Advanced coding skills including concurrency, profiling, and performance optimisation
• Experience with CI/CD pipelines and deployment automation
• Experience with security at the network edge (DDoS protection, authentication protocols, TLS termination)
• Demonstrated best-practice software engineering: unit testing, code reviews, refactoring, continuous deployment

L5 Expectations

• Responsibly leverages AI, using it effectively for high productivity without compromising availability or OE burden
• Owns and delivers medium-complexity features independently with minimal guidance
• Writes high-quality code and uses Agents to write high quality code and participates actively in code reviews
• Operates effectively in ambiguous situations and asks the right questions to unblock themselves
• Contributes to operational excellence — dashboards, runbooks, alarm tuning
• Communicates clearly with the team on progress, blockers, and technical trade-offs

Thank you.