Senior Full-Stack Software Engineer
Westlake, TX
Category: Development
Industry: Financial Services
Reference ID: JN -122025-104694
Date Posted: 02/07/2026
Shortcut: http://careers.eliassen.com/Xtn2H1
Description:
Hybrid two weeks onsite a month in either Westlake, TX or Smithfield, RI
The organization seeks a senior Full-Stack Software Engineer to build high-quality software for payroll deductions, elections, and HR/payroll integrations. You will design, develop, and operationalize API-driven solutions and data integrations that enable clients and partners to connect with services. You will collaborate with product, architecture, and business stakeholders to align with strategic roadmaps while delivering resilient, scalable capabilities.
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: $55.00 to $60.00/hr. w2
Responsibilities:
Responsibilities
- Design, code, and unit test Java-based applications and APIs for payroll and HR integrations.
- Develop and maintain industry-leading engineering solutions supporting Employer Servicing and Integration squads.
- Drive complex technology solutions across multiple squads to meet business goals.
- Ensure clarity in requirements, architecture, and design by coordinating with a broad stakeholder group.
- Implement metadata-driven, end-to-end configurable systems to support rapid market entry.
- Build and optimize relational database components, including PL/SQL stored procedures and ETL workflows.
- Leverage public cloud platforms to deploy and operate solutions.
- Collaborate with external payroll vendors to deliver 360-degree data integrations via APIs and files.
- Share knowledge within and across squads to align delivery with roadmaps and guardrails.
- Communicate designs and solutions clearly to technical and non-technical stakeholders.
Experience Requirements:
Experience Requirements
- 7+ years of hands-on software development experience.
- Expertise in object-oriented programming with Java.
- Proven experience implementing API-based solutions using Java Spring Boot.
- Expert knowledge of relational database design and data modeling.
- Hands-on Oracle database development with PL/SQL and ETL tools.
- Experience designing metadata-driven, highly configurable systems.
- Hands-on expertise with public cloud platforms such as Azure or AWS.
- Strong communication, influencing, and negotiation skills within matrixed organizations.
- Comfort presenting and explaining ideas and solutions to stakeholders.
- Understanding of workplace services product offerings and integration techniques across record keepers (preferred).
Education Requirements:
Education Requirements
- Bachelor’s or master’s degree in computer science, engineering, or a related field.
- Azure certification (preferred).
- AWS certification (preferred).
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.
Please be advised- If anyone reaches out to you about an open position connected with Eliassen Group, please confirm that they have an Eliassen.com email address and never provide personal or financial information to anyone who is not clearly associated with Eliassen Group. If you have any indication of fraudulent activity, please contact InfoSec@eliassen.com.
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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:
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- 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