Senior Backend Cloud Engineer — AWS Serverless (Remote)

Senior Backend Cloud Engineer — AWS Serverless (Remote)

About EverUp

We’re a UK startup making gift-card shopping rewarding. Our mobile app (React Native) and web experiences run on a serverless AWS backend. We’re hiring a Backend Cloud Engineer to evolve and maintain the APIs, databases, and services that power payments, wallet, rewards, and near-real-time features.

The role

You’ll work across our event-driven, serverless stack to maintain and evolve production systems. That means adding features, fixing bugs, improving performance and cost, tightening security, and raising reliability—while collaborating closely with Mobile / Web.

What you’ll do

• Maintain and evolve AWS Lambda microservices behind Amazon API Gateway (HTTP / REST & WebSocket) and AWS IoT Core ; implement authentication / authorization via Cognito User Pools (JWT) and Lambda authorizers for REST / HTTP.
• Maintain and optimize data models and access patterns in DynamoDB and MySQL (RDS); handle indexes, migrations, and query performance.
• Maintain asynchronous workflows using SQS / SNS (idempotency, DLQs, retries) and keep observability healthy with CloudWatch metrics / logs and alarms.
• Maintain and improve our IaC (AWS SAM / CloudFormation), CI / CD pipelines, and environment promotions.
• Integrate and support third-party services used for payments, open banking, notifications, fraud / risk, analytics and support tooling.
• Troubleshoot production issues, drive RCAs, and implement preventive fixes and runbooks.
• Uphold security best practices (least-privilege IAM, secret management, input validation, auditability).

Tech you’ll touch

AWS Lambda, API Gateway (REST / WebSocket), Cognito, DynamoDB, RDS MySQL, SQS / SNS, S3, IAM, CloudWatch, CloudFormation / SAM, EC2, ECS, plus fintech / comms integrations (Open Banking / PSP, Gift Cards, Analytics, Messaging, Support, and Risk assessment tools).

Must-haves

How we work

Remote-first within UK time zone, startup-paced, with high ownership. We value clean code, small safe changes, and excellent operability.

Hiring process

Equal opportunity

We’re an equal-opportunity employer and welcome every background and perspective.

How to apply

Send your CV, GitHub / portfolio, and a brief note describing a production backend you maintained / evolved and the reliability or cost improvements you delivered.

Add your current compensation, time zone and location.