Senior/Principal Software Engineer

  • Eliassen Group
  • Merrimack, New Hampshire
  • 04/26/2026
Full time Information Technology Telecommunications Java Python Software Engineer Testing

Job Description

Job DescriptionJob DescriptionDescription:

Hybrid Onsite 5 days/week, alternating weeks in either Manchester, NH, Irving, TX or Edison, NJ.

The Senior Software Engineer will develop, test, deliver, and support workflow-driven features that power client interactions on a platform. The role will collaborate with technical leads and product managers to translate complex business processes into robust, maintainable code using languages such as Python and JavaScript. The position requires strong analytical and problem-solving skills, ownership of automation and testing, and disciplined use of source control and CI/CD. The team operates like a startup within a larger organization to build and scale new fintech products.

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, implement, test, and support workflow logic that drives client interactions on the private shares platform.
  • Collaborate with technical leads and product managers to refine requirements and inform product direction.
  • Build, deploy, and support production web applications using languages such as Python and JavaScript.
  • Apply automation and testing strategies to ensure code robustness and reliability.
  • Use source control and CI/CD tools and practices to maintain high-quality delivery.
  • Research and prototype growth opportunities and new technologies to extend the platform.
  • Collaborate closely with teammates, share knowledge, and contribute to engineering excellence.

Experience Requirements:
  • Proven experience building, deploying, and supporting production web applications with Python and/or JavaScript.
  • Strong analytical and problem-solving skills to understand complex customer needs and transactions.
  • Hands-on experience with source code management and CI/CD pipelines using tools such as GitHub and Jenkins.
  • Demonstrated ownership of automation and testing to ensure code quality.
  • Ability to learn new technologies and patterns and adapt to changing requirements.
  • Collaborative mindset with a passion for engineering excellence.

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 (, ) 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.
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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!