AWS Developer

Asterism IT Solutions; Malvern (Chester County); Hybrid; USD 110,000 - 160,000; Full time

Job summary

Asterism IT Solutions in Malvern, PA seeks an experienced AWS Developer to design and implement backend services using Node.js and TypeScript. The role focuses on REST APIs, AWS services, and infrastructure-as-code, with automated testing and CI/CD workflows.

The ideal candidate has 5+ years in backend development, hands-on AWS experience, and familiarity with NestJS or similar frameworks. This is a long-term contract requiring on-site presence 3 days per week in Malvern.

Qualifications

• 5+ years of backend development experience
• Strong hands-on experience with Node.js and TypeScript
• Experience with NestJS or a comparable dependency-injection framework
• Experience with REST APIs and OpenAPI/Swagger
• Hands-on AWS experience with Lambda, API Gateway, S3, ECS, Secrets Manager
• Experience with CloudFormation / Infrastructure as Code
• Strong Jest unit testing experience
• Experience with a 100% test coverage gate and Git workflows
• Experience with CI gates / CI workflows
• Must be able to work onsite in Malvern, PA 3 days per week

Responsibilities

• Designing and developing REST APIs in AWS environments
• Building and maintaining backend services with Node.js/TypeScript
• Implementing IaC using CloudFormation and CI/CD automation
• Ensuring test coverage and quality with Jest and test gates
• Collaborating via Git feature branches and PR workflows

Skills

Node.js

TypeScript

REST APIs

AWS

AWS Lambda

API Gateway

S3

ECS

OpenAPI

CloudFormation

Jest

CI/CD

Git workflows

NestJS

Tools

NestJS

Spring Boot

OpenAPI/Swagger

Job description

Job Title

AWS Developer

Location

Malvern, PA — Hybrid (3 days onsite/week)

Employment Type

Long-Term Contract | W2

Work Authorization

US Citizen, Green Card, GC EAD, H4 EAD, OPT

Job Description

We are seeking an experienced AWS Developer with strong backend development experience using Node.js and TypeScript. The ideal candidate will have hands‑on experience designing and developing REST APIs and working with AWS cloud services, infrastructure‑as‑code, automated testing, and CI/CD workflows.

Required Skills & Experience

• 5+ years of backend development experience
• Strong hands‑on experience with Node.js and TypeScript
• Experience with NestJS or a comparable dependency‑injection framework
• Spring Boot experience may be considered as transferable experience
• Strong experience designing and developing REST APIs
• Experience with OpenAPI / Swagger
• Hands‑on AWS experience with:
  • AWS Lambda
  • API Gateway
  • S3
  • ECS
  • Secrets Manager
• Experience with CloudFormation / Infrastructure as Code
• Strong Jest unit testing experience
• Experience working with a 100% test coverage gate
• Experience with Git feature‑branch and pull‑request workflows
• Experience working with CI gates / CI workflows
• Must be able to work onsite in Malvern, PA 3 days per week

Preferred Skills

• Authoring and versioning internal npm packages
• Plugin interface development
• Playwright E2E testing
• Stryker mutation testing
• Feature flags such as Gatekeeper or similar tools
• OpenTelemetry / distributed tracing
• Honeycomb or Splunk
• Fastify
• Redis
• JWT authentication
• Brokerage/financial services experience, including:
  • Order routing
  • Trade execution
  • Cost basis
• Dexter tooling experience