Full Stack Engineer
nextSource
full-remoteseniorcontractfullstackqa United States 4 days ago via LinkedIn
166,400 - 187,200 USD/annual
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ReactTypeScriptJavaScript (ES6)Node.jsPlaywrightAWS LambdaDynamoDBS3SNS/SQSTest Automation
About the role
Role overview
Senior Full-Stack Software Engineer (remote) for a long-term contract.
- ~60% frontend development and ~40% test automation
- Build modern web applications focused on user experience, reliability, and automated testing
Responsibilities
- Build and enhance frontend applications with React, TypeScript, and modern JavaScript (ES6)
- Design, develop, and maintain automated tests using Playwright with TypeScript
- Migrate existing Python-based test automation to Playwright/TypeScript
- Develop scalable full-stack features using Node.js and AWS serverless services
- AWS Lambda, DynamoDB, S3, SNS, SQS (and related services)
- Collaborate with product, design, and engineering teams to deliver high-quality software
- Improve performance, usability, reliability, and maintainability
- Participate in code reviews and help drive engineering best practices
- Support testing and production readiness in an Agile environment
Required qualifications
- Bachelor’s degree (preferred in CS/Engineering/Math or analytical field)
- 5+ years professional software engineering experience
- Advanced hands-on experience with React, TypeScript, and JavaScript (ES6)
- Hands-on Playwright experience for test automation
- Experience building full-stack applications in highly scaled environments
- Strong Node.js experience
- Experience with AWS services: Lambda, S3, DynamoDB, SNS, SQS
- Some experience with Python
- Experience working on Agile teams; pair programming, code reviews, and collaboration
Preferred qualifications
- AWS AppSync
- AWS CDK or CloudFormation
- Test automation frameworks such as Jest, Mocha, or WebDriver
- AWS certification (Associate+)
Compensation
- $80–$90 per hour (depending on experience)
About nextSource
nextSource is a technology services company delivering software engineering talent and support for building and improving modern web applications. The role described involves developing content authoring and assessment experiences using React, TypeScript, Node.js, and AWS serverless services.
Scraped 6/18/2026