Senior Backend Software Engineer (API & Cloud) Job at Polton Full Time NEW

We are AMS. We are a global total workforce solutions firm; we enable organisations to thrive in an age of constant change by building, re-shaping, and optimising workforces. Our Contingent Workforce Solutions (CWS) is one of our service offerings; we act as an extension of our clients’ recruitment team and provide professional interim and temporary resources.

Please ensure you read the below overview and requirements for this employment opportunity completely.
Our client, a major UK retail bank, provides every day banking services to over 17 million retail customers. The banks expertise and services span across Business Services, Corporate banking, Wealth Management, Group Functions, Retail and Investment Banking.

On behalf of this organisation, AMS are looking for a Senior Backend Software Engineer / Platform Engineer (API & Cloud) for a 6 Month contract based in Edinburgh or London.
The Role & Responsibilities:
The Backend Engineer will be responsible for designing, building, and operating secure, scalable APIs and backend services in cloud native environments. The role centres on API development using modern API gateways on AWS or GCP, applying API standards, DevSecOps, and industry best practices, and delivering solutions within SCRUM agile ways of working.
Design, develop, and maintain backend services and APIs (REST and event driven).
Build and operate APIs and MCPs using Apigee Hybrid/X.
Apply API standards and industry best practices for design, versioning, security, documentation, and lifecycle management.
Embed DevSecOps practices across CI/CD pipelines and runtime environments.
Design and implement secure service to service integrations using MCP, A2A, and AP2 protocols.
Contribute to backend integrations involving LLM enabled or AI driven systems, where applicable.
Deploy, monitor, and support production services on AWS or GCP.
Actively contribute code while collaborating within SCRUM agile teams.
What We Require from the Candidate:
Strong hands on backend development experience (Java, Python, or Node.js).
Proven API development experience using an API gateway platform.
Production experience with at least one cloud platform: AWS or GCP.
Practical DevSecOps experience, including CI/CD, infrastructure as code (Terraform), and automated security controls.
Strong understanding of cloud networking concepts (VPCs, subnets, routing, load balancing, private connectivity).
Experience working in SCRUM / agile ways of working.
MCP, A2A, and AP2 protocols, including their use in secure, distributed integrations
LLM concepts and integration patterns, including API based interaction models and security considerations.
Cloud security, IAM, networking, and observability fundamentals.

Desirable:
Experience with Apigee (Hybrid/X) beyond basic consumption.
Experience with Kubernetes and containerised platforms.
Experience in regulated or large scale enterprise environments.
Exposure to platform engineering or internal developer platforms.
Mentoring experience or contribution to engineering standards.
Next Steps:
This client will only accept workers operating via an Umbrella or PAYE engagement model. xwwtmva
If you are interested in applying for this position and meet the criteria outlined above, please click the link to apply and we will contact you with an update in due course.
AMS, a Recruitment Process Outsourcing Company, may in the delivery of some of its services be deemed to operate as an Employment Agency or an Employment Business