Senior Node.js Backend Engineer

Senior Node.js Backend Engineer

Contract:

12 months Hours:

UK/

CET Rate:

$300 USD per day Location:

Fully Remote

Overview We’re looking for a Senior Backend Engineer to take ownership of core platform services, helping evolve an existing AWS-based system into a more scalable, modular architecture. This is a hands-on product backend role with real responsibility over performance, reliability, and system design.

What you’ll do Migrate existing serverless logic into a modular

NestJS

backend Build and maintain backend services using

Node.js, TypeScript, and NestJS Lead

MySQL / Aurora performance optimisation

(queries, indexing, scaling, reliability) Improve system scalability and stability across AWS infrastructure Contribute to observability (Grafana) and infrastructure-as-code (Terraform) Work closely with product and engineering to ship high-quality backend features

Tech Stack Node.js, NestJS, TypeScript MySQL (Aurora), Redis AWS (ECS, Lambda, SQS, API Gateway, S3, CloudFront) Terraform, Grafana

Must have 5+ years commercial backend experience Strong Node.js + NestJS Solid MySQL optimisation experience in production environments Deep AWS hands-on experience Comfortable using AI dev tools day-to-day (Copilot / Claude / similar)