Full Stack Software Engineer - React, Node.js AWS

TEKsystems•Littleton, CO

2d•$65 - $85•Hybrid

About The Position

We’re hiring a Senior-level full stack engineer to help build a modern, cloud-native digital platform from the ground up. This is a greenfield opportunity within a multi‑year enterprise modernization program focused on secure, contract‑first APIs, scalable frontend experiences, and AI‑assisted development workflows. This role goes beyond feature delivery — you’ll help shapearchitecture, engineering standards, and platform foundations that future teams will build upon.

Requirements

8+ years of professional software engineering experience
4+ years working with React, Node.js, and TypeScript
Production experience building query-driven, contract-first APIs
Hands-on AWS experience (Lambda, API Gateway, EKS/ECS, RDS, S3)
Strong TypeScript proficiency with shared domain models and typed APIs
Experience implementing API security and multi-tenant architectures
Familiarity with CI/CD, cloud-native patterns, and DevSecOps practices
Experience using AI-assisted development tools in production environments

Nice To Haves

Domain-driven design (DDD) or distributed systems
Event-driven architecture (EventBridge, SNS/SQS, Kafka-style systems)
Monorepo tooling (Nx, Turborepo)
Regulated industry experience (insurance, finance, healthcare)
Python or C#/.NET background

Responsibilities

Designing and building secure, query-driven APIs across multiple business domains
Developing modern React + TypeScript frontend experiences consumed by enterprise users and external clients
Implementing contract-first API development using OpenAPI and/or GraphQL
Building and deploying cloud-native services on AWS using serverless and containerized patterns
Partnering with architects, platform teams, and product leaders on end-to-end solution design
Contributing to shared libraries, design systems, and platform standards
Leveraging AI-assisted development tools with defined guardrails, prompts, and review practices
Build Node.js / TypeScript microservices on AWS (Lambda, API Gateway, EKS/ECS)
Design dynamic, query-driven APIs (GraphQL, OData, JSON:API, or similar)
Implement robust security controls (multi-tenant isolation, row-level security, fine-grained authorization)
Apply contract-first practices with schema validation and typed clients
Use Infrastructure-as-Code (CDK, Terraform, or CloudFormation)
Build React 18+ applications using component-driven architecture
Contribute to reusable UI components and shared design systems
Ensure accessibility (WCAG 2.1+), performance, and responsive design
Work with modern state management and performance optimization patterns
Write automated tests (Jest, Playwright, Cypress)
Support CI/CD pipelines and Git-based workflows
Maintain high code quality through linting, static analysis, and reviews
Participate in architecture and design reviews
Mentor other engineers and raise engineering standards
Translate architectural direction into executable engineering work