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# Full Stack Developer III

- **Company:** TEKSYSTEMS INC.
- **Location:** Newport Beach, CA, United States (Remote available)
- **Salary:** $124,800 - $166,400
- **Contract:** Temporary contract
- **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Amazon Cloudfront, Application Integration Architecture, User Authentication, Automation of Tests, Unit Testing, Cloud Computing, Amazon DynamoDB, JavaScript Libraries, Node.Js, OAuth, OpenID, JSON Web Token, System Testing, Systems Integration, TypeScript, ReactJS, Claude Code, AI Coding Agents, Playwright, Claude, Functional Programming, Api Gateway, JestJS, Restful APIs, Amazon Simple Queue Service (SQS), Serverless Computing, Mulesoft, Microservices
- **Published:** November 7, 2026
- **Apply:** https://www.careercircle.com/jobs/all/all/usa/ca/newport-beach/89d3aa46-5679-44d0-843f-8623131ef108

## About the Role

* Strong TypeScript, Node.js, and React experience
 * Advanced hands-on AWS experience, especially with serverless architecture
 * Experience designing and integrating REST APIs and microservices
 * Strong testing practices across unit and integration testing
 * Experience using AI coding tools, ideally Claude Code
 * Experience integrating applications with third-party platforms/COTS products

Nice to Have:

 * Experience with loyalty or rewards platforms
 * Rules engine experience
 * Experience with Antavo
 * Playwright or similar automated testing frameworks
 * MuleSoft development experience, Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.

## Description

Claude AI
Operations
TypeScript
Scalability
RESTful API
API Gateway
Claude Code
Team Building
System Testing
AWS Serverless
Test Automation
Authentications
Cloud Computing
Amazon DynamoDB
Loyalty Programs
Amazon Cloudfront
Business Valuation
Serverless Computing
JSON Web Token (JWT)
Full Stack Development
Business Transformation
Authorization (Computing)
Node.js (Javascript Library)
React.js (Javascript Library)
Troubleshooting (Problem Solving)
Application Programming Interface (API)
$124,800 - $166,400 / yr
Posted yesterday, * Design and deploy serverless AWS architectures using Lambda, API Gateway, SQS, DynamoDB, CloudFront, and CDK

 * Build scalable RESTful APIs and integrations with third-party/COTS platforms
 * Work with authentication and authorization using JWT, OAuth2, and OIDC
 * Help develop functionality supporting a large-scale customer loyalty platform
 * Use Claude Code for AI-assisted design, development, troubleshooting, and productivity
 * Write strong unit and integration tests using tools like Vitest or Jest
 * Help automate end-to-end testing with tools such as Playwright
 * Collaborate with a team focused on building clean, scalable, modern cloud solutions