Senior Backend Engineer (Java/Kotlin) – AI-Powered API Platform

Anaplan; York and North Yorkshire; On-site; GBP 90,000 - 120,000; Full time

Job summary

Anaplan is seeking an Engineer IV to join our team in Manchester, UK, or York, UK. You will lead design and delivery of platform capabilities powering API gateways, edge routing, and developer acceleration, while mentoring engineers across global teams.

You will work with Java/Kotlin in a high-throughput, enterprise-scale environment, driving observability, security, and scalable infrastructure as part of a modern platform experience.

Qualifications

• Experience in enterprise-scale, high-throughput platform environments.
• Deep expertise in Java and/or Kotlin with distributed systems knowledge.
• Proven track record delivering API-first infrastructures, API Gateways, and edge routing.
• Hands-on Kubernetes, CI/CD, and GitOps workflows (ArgoCD).
• Strong technical communication, RFCs and architectural design leadership.

Responsibilities

• Lead design, delivery, and architecture of platform capabilities powering API gateways and edge routing.
• Build and scale backend engines for multi-tenant ecosystems and thousands of users.
• Collaborate with architects to set technical direction for complex initiatives.
• Advance deployment infrastructure with modern GitOps workflows and container orchestration.
• Own end-to-end features with observability, rate-limiting, and concurrency improvements.
• Ensure seamless integration between backend services and UI components.

Skills

Java/Kotlin

Distributed systems

API-first design

Kubernetes

GitOps

High-throughput systems

Backend architecture

Tools

Traefik

ArgoCD

JVM tooling

Job description

Anaplan is seeking an Engineer IV to join our team in Manchester, UK, or York, UK. You will lead design and delivery of platform capabilities powering API gateways, edge routing, and developer acceleration, while mentoring engineers across global teams.

You will work with Java/Kotlin in a high-throughput, enterprise-scale environment, driving observability, security, and scalable infrastructure as part of a modern platform experience.