Senior backend engineer building Affirm’s AI platform infrastructure for scalable financial services. Developing governed gateways, runtimes, and evaluation systems across millions of transactions.
About the role
- Senior Java Developer building event-driven backend services for Just Eat Takeaway.com’s global food delivery logistics platform. Owning courier network systems across data, deployment, and production operations.
Responsibilities
- Build and operate production backend services at scale for the Logistics Courier Pay Network
- Design and operate services powering the courier network
- Own backend systems end-to-end, including data modelling, event flows, deployment, and production operations
- Contribute to the architecture of an event-driven platform
- Deliver robust, performant, and observable backend services
- Work with engineers, product managers, and stakeholders to ship logistics features
- Champion modern backend practices and mentor peers
- Shape backend engineering practices and distributed services at scale
- Use event-driven architectures, pub/sub, asynchronous processing, idempotency, Domain Driven Design, bounded contexts, sagas, eventual consistency, and the outbox pattern
- Manage database schema design, query tuning, migrations, observability, CI/CD, infrastructure-as-code, GitOps, and performance/load testing
- Use AI agents for automated pull requests, debugging, code generation, refactoring, and reviews
Requirements
- 5+ years of experience building and operating production backend services at scale
- Strong proficiency in Java, Quarkus, Spring Boot, or similar JVM frameworks
- Deep experience with event-driven architectures, including Kafka, SQS, and SNS
- Solid grounding in Domain Driven Design (DDD) patterns for distributed systems
- Hands-on experience with relational and NoSQL databases, including Aurora RDS, PostgreSQL, MySQL, MongoDB, and DynamoDB
- Production deployment on AWS/Azure using Kubernetes (EKS)
- Strong experience with Datadog, RESTful API design, CI/CD pipelines, Terraform/CloudFormation, and automated performance/load testing frameworks
- Practical enthusiasm for AI-assisted development and agentic engineering, including GitHub Copilot, Cursor, or Claude Code
- Collaborative mindset and experience working across Agile software development cycles
- Satisfactory background check required as a condition of employment
Benefits
- Monthly Skip spend allowance
- Generous PTO with a buy and sell program with up to 5 extra days
- Up to 20 weeks top up for parental leave
- Flexible medical & dental insurance for you and your family
- Access to world-class training resources
- Exclusive offers from Workperks from hundreds of top brands
- RRSP contributions with diverse investment portfolios
- Paid sick time to care for yourself or your family
- Well-being support programs
- Freedom to work from almost anywhere in the world for 4 weeks a year
- Dedicated mentorship
- Global mobility pathways
- Wellness-first culture rooted in true diversity and inclusion
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