Principal Full Stack Engineering Consultant

Merrimac, NH


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Type: Contract

Category: Development

Industry: Financial Services

Reference ID: JN -022026-105428

Date Posted: 04/10/2026

Shortcut: http://careers.eliassen.com/ul8WQS


Description:

Hybrid 50% in either Merrimack, NH or Smithfield, RI, or Dallas TX

 

Our client seeks a Principal Full Stack Engineering Consultant to design and develop complex systems, lead technical initiatives, and enable innovation across teams. The role requires strong Java and JavaScript expertise, hands-on experience with Angular and Spring Boot, and proficiency with AWS EKS, Terraform, Docker, Jenkins Core, and Datadog. You will collaborate with business partners, architects, analysts, and engineers to translate business logic into scalable solutions and join a highly visible engineering team responsible for building and supporting enterprise‑scale Single Sign‑On (SSO) services consumed by multiple internal platforms and development teams.

In this role, you will play a hands‑on technical leadership role, driving the design and development of modern, cloud‑native applications while partnering closely with architects, product owners, business stakeholders, and fellow engineers. This is an excellent opportunity for a seasoned engineer who enjoys going deep technically, mentoring others, and designing scalable, well‑documented solutions. You will provide mentorship, drive code quality, and support platform services consumed by developers and integrators.

 

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: $65.00 to $70.00/hr. w2

 


Responsibilities:
  • Strong Java experience (Java 11+), with a solid grasp of modern language features and best practices, our team works on Java 21
  • Spring Boot development, including building and consuming RESTful APIs
  • Angular experience (hands‑on knowledge required, even if UI changes are infrequent, must have the ability to work with TypeScript / Angular)
  • AWS experience, specifically Elastic Kubernetes Service (EKS)
  • Docker & Kubernetes for containerized application development and deployment
  • Infrastructure and observability tooling such as Terraform and Datadog (or equivalent monitoring tools)
  • Jenkins Core for CI/CD pipeline builds and deployments
  • Translate business requirements into well‑designed technical solutions
  • Work effectively in an Agile/Scrum environment
  • Provide code reviews, technical guidance, and mentorship to other engineers
  • Produce clear technical documentation for systems used by other developers and integrators
  • Design, build, and enhance scalable backend services and supporting UI components including those related to security and authentication with single sign on technologies from a development standpoint
  • Contribute to the architecture and modernization of cloud‑based applications
  • Troubleshoot and resolve complex technical issues with a strong understanding of how systems work end‑to‑end
  • Collaborate with cross‑functional partners including architects, systems analysts, and product stakeholders
  • Support CI/CD pipelines and production deployments in a Kubernetes‑based environment
  • Participate in technical discussions around performance, security, and reliability

Experience Requirements:
  • 10+ years of software development experience with strong proficiency in Java and JavaScript.
  • Proven depth in Java and Spring Boot, not just high‑level familiarity
  • Demonstrated ability to explain technical concepts clearly and thoughtfully
  • Prior experience building platforms or services used by other engineering teams
  • Single Sign‑On (SSO) or identity‑related experience is a strong plus (understanding of identity providers, authentication flows, etc.) and is HIGHLY preferred
  • Experience with Angular for front-end development.
  • Hands-on experience with AWS Elastic Kubernetes Service (EKS) and Docker.
  • Infrastructure as code experience with Terraform.
  • CI/CD pipeline management with Jenkins Core.
  • Monitoring and observability with Datadog or equivalent.
  • Strong understanding of software design, data structures, and algorithms.
  • Effective verbal and written communication skills in an agile scrum environment.
  • Leadership and mentorship experience with code reviews and guidance.
  • Background building technologies for developer consumption and user documentation.

Education Requirements:
  • Bachelor's or master's degree in computer science, computer engineering, information systems, or equivalent.
  • AWS certification (preferred).

Recruitment Transparency Notice
 
Eliassen Group values transparency in our recruitment practices. Please be advised that Eliassen Group utilizes artificial intelligence (AI) tools as part of its initial application screening and hiring process. You may receive email and SMS notifications from the Eliassen Virtual Recruiting Team (noreply@eliassen.com, 781-808-2924) inviting you to complete a brief voice screening as part of your application process. These tools assist our hiring teams in different ways, including but not limited to, assistance in reviewing application materials to help identify candidates whose qualifications most closely match the requirements of the position. All AI-assisted evaluations and responses are reviewed by human recruiters before any hiring decisions are made. The use of AI in our process is intended to support fairness, efficiency, and consistency, and Eliassen Group takes measures to prevent bias or discrimination in connection with its hiring practices. By proceeding, you acknowledge, agree, and consent to Eliassen Group’s use of these tools, including AI tools, as part of the application and hiring process.
 

Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range.

W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality.
If anyone reaches out to you about an open position connected with Eliassen Group, please ensure that you are working directly with us by confirming the following:

· When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.

· Eliassen Group will never ask you for personal information (home address, bank account, or check routing number) until you have worked with someone clearly associated with Eliassen Group.

If you have any indication of fraudulent activity, please contact fraud@eliassen.com.

 
About Eliassen Group:
 
Eliassen Group is a strategic consulting firm that helps organizations reach further and achieve more through our technology, business advisory, and life sciences solutions. For nearly 40 years, we have combined exceptional people, deep domain expertise, and intelligent capabilities to expand our clients’ capacity and accelerate meaningful outcomes. We are driven by a purpose to positively impact the lives of our employees, clients, consultants, and the communities we serve.
 
Eliassen is committed to building a diverse and inclusive team from a variety of backgrounds, perspectives, and skills. We are an Equal Opportunity and Affirmative Action Employer and all employment decisions are based on merit, performance, and business needs. Eliassen does not discriminate on the basis of race, color, gender identity or expression, sexual preference or orientation, sex (including pregnancy, childbirth, and related medical conditions), marital status, creed, religion, physical or mental disability, genetic information, military or veteran status, age, ancestry, national origin, citizenship status, prohibited criminal record inquiries of applicants and employees, or any other category protected by federal, state, or local laws.
 
Don’t miss out on our referral program! If we hire a candidate that you refer us to then you can be eligible for a $1,000 referral check!
 

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Eliassen Group is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status. Eliassen Group’s Affirmative Action Plan (AAP) is available for inspection by any employee or applicant for employment upon request, during normal business hours of Monday through Friday, 8:30am to 5:30pm EST. Interested persons should contact Phaedra Wells at pwells@eliassen.com for assistance. It is unlawful in Massachusetts and Maryland to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Applicants with disabilities that believe they require an accommodation or assistance with a position, please email our HR team at hradmin@eliassen.com. This email inbox is designed exclusively to assist job seekers whose disability prevents them from being able to apply online. Emails sent for other purposes will not receive a response.


Please be advised that a number of fraudulent job postings have been released under the Eliassen Group brand.

Unfortunately, fraudulent job postings can happen. If anyone reaches out to you about an open position connected with Eliassen Group, never provide personal or financial information to anyone who is not clearly associated with Eliassen Group

If anyone seemingly from Eliassen Group has ever requested this personal information in the past or does so in the future, please contactInfoSec@eliassen.com.

Please ensure that you are working directly with us by confirming the following:

  • When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.
  • Eliassen Group will never ask you for personal information (home address, bank account, or check routing number) until you have worked with someone clearly associated with Eliassen Group, as indicated above