Demo

Senior Full Stack Engineer

Eliassen Group
Merrimack, NH Contractor
POSTED ON 4/10/2026
AVAILABLE BEFORE 5/9/2026
Description

Hybrid Onsite 5 days/week, alternating weeks in either Manchester, NH or Boston, MA or Irving, TX

Our client seeks a Senior Full Stack Engineer to build omni-channel user experiences and platform capabilities that support retail Alternative Investments and crypto solutions. The role requires deep expertise with Angular, TypeScript, RxJS, NgRx, Node.js/NestJS, CI/CD, automated testing, and AWS. You will contribute across the stack within autonomous teams, shaping performant, secure, and resilient web applications while promoting clean, testable code. Experience with mobile technologies and modern web architectures will be valuable.

Due to client requirements, applicants must be willing and able to work on a w2 basis. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.

Rate: $70.00 to $80.00/hr. w2

Responsibilities

  • Design, develop, and deploy end-to-end web features using Angular and TypeScript with a test-first approach.
  • Build and maintain resilient front-end architectures leveraging RxJS, NgRx, and modern patterns such as micro-frontend, BFF, and Module Federation.
  • Develop and integrate backend services using Node.js/NestJS and RESTful APIs.
  • Implement robust automated tests with tools such as Cypress, Playwright, Jest, and Storybook.
  • Apply advanced Git workflows, branching strategies, and CI/CD practices to deliver high-quality software.
  • Optimize performance, security, and reliability across web experiences with a focus on customer experience and accessibility.
  • Leverage AWS services including EC2, Lambda, serverless computing, and DynamoDB to deliver scalable solutions.
  • Collaborate within autonomous, cross-functional teams to take features from concept to production.
  • Contribute to reusable core components, standards, analytics, A/B testing, and personalization initiatives.
  • Ensure secure authentication and authorization using OAuth and OpenID Connect.

Experience Requirements

  • 6 years building web applications with Angular 12 , TypeScript, RxJS, and NgRx in an agile environment.
  • Proficiency with Node.js and NestJS for building microservices and RESTful APIs.
  • Strong experience with automated testing using Playwright, Cypress, Jest, and Storybook.
  • Advanced Git expertise, effective branching strategies, and CI/CD pipelines.
  • Knowledge of HTTP/S, REST, networking fundamentals, and web performance.
  • Experience with modern web architectures such as micro-frontend, BFF, and Module Federation.
  • Strong understanding of AWS services including EC2, Lambda, serverless computing, and DynamoDB.
  • Experience with security standards including OAuth and OpenID Connect.
  • Experience or willingness to learn Android and iOS mobile technologies.
  • Experience with Nx workspaces (preferred).
  • Experience with Docker, containerization, and orchestration (preferred).
  • Exposure to AWS Route 53 and API Gateway (preferred).
  • Experience with Kotlin or Swift for mobile development (preferred).

Education Requirements

Salary : $70 - $80

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