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Full-Stack Developer

GreyStar Systems LLCRockville, MD🇺🇸United StatesPosted 14 Sept 2026

Quick Overview

Seniority
Mid Senior
Work mode
On Site
Location
Rockville, MD, United States
Posted
19 hours ago
DynamoDBNode.jsRxJSAPI GatewayAWSAgileAngularGitHub ActionsJavaScriptJenkinsPlaywrightPythonTypeScript

Job Description

Title:  Full-Stack Developer

Contract: Ongoing contract

Location: Rockville, MD|Tysons Corner, VA (3 days on site)

 

Interview Process:

Coding assessment test to be done remotely on their own

Available for 48 hours

Then 30 min virtual with Vinod

Then will do an in-person panel in Rockville for 2 hours

 

About the Position / Current Initiatives: This role requires a seasoned full-stack developer who can contribute to enterprise-grade financial technology solutions while maintaining the highest standards of code quality and system reliability.

 

Job Must Haves:

  • Advanced proficiency in Node.js, TypeScript, JavaScript, and Python
  • Experience with Angular 16 or later versions
  • Proficiency with automated testing frameworks, continuous integration/deployment pipelines
  • Expertise in AWS services
  • Experience with event-driven architectures
  • Experience with AI/ML tools

 

Job Nice to Haves:

AWS professional certifications


Enterprise Development Experience: 

Proven track record of designing and deploying production-grade applications using object-oriented programming principles and database technologies

 

• Agile Development Background: Hands-on experience building enterprise-level solutions within iterative development methodologies and Agile frameworks

• Software Engineering Best Practices: Proficiency with industry-standard development practices including automated testing frameworks, continuous integration/deployment pipelines, and configuration management tools

• Core Technology Stack:

Advanced proficiency in Node.js, TypeScript, JavaScript, and Python

Experience with Angular 16 or later versions for modern web application development, RxJS, Ngx Formly, monorepo architecture

Quality Assurance & Testing: Ability to develop comprehensive end-to-end tests using Playwright with TypeScript, along with integration and performance testing capabilities

• DevOps & CI/CD: Strong experience implementing continuous integration and deployment workflows using Jenkins and/or GitHub Actions

• Cloud Architecture & AWS Services: Expertise in designing and implementing event-driven architectures leveraging:

Messaging services (SQS/SNS)

Serverless computing (AWS Lambda)

API Gateway, Step Functions

Data storage solutions (S3, RDS, DocumentDB, DynamoDB)

Container orchestration (ECS)

AI/ML services (AWS Bedrock)

Search and analytics (Amazon OpenSearch)

 

Preferred Qualifications: 

• AWS professional certifications

 

Interview Process:

Coding assessment test to be done remotely on their own

Available for 48 hours

Then 30 min virtual with Vinod

Then will do an in-person panel in Rockville for 2 hours

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