Senior Software Engineer
St. Louis, MO
Category: Development
Industry: Financial Services
Reference ID: JN -082026-108318
Date Posted: 08/18/2026
Shortcut: http://careers.eliassen.com/0VoYD2
Description:
Hybrid 4 days in office in St. Louis, MO
Our client seeks a hands-on Senior Software Engineer to modernize and maintain a mission-critical enterprise application in AWS GovCloud. The role focuses on practical engineering, reliability, and collaboration with architects and scrum teams to deliver scalable microservices and micro-frontend solutions.
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: $85.00 to $95.00/hr. w2
JN -082026-108318
Responsibilities:
- Design and implement microservices using Java, Spring Boot, and TypeScript supporting event-driven and RESTful patterns.
- Build solutions on AWS GovCloud services including ECS or EKS, Lambda, EventBridge, and RDS within microservices and micro-frontend architectures.
- Reduce technical debt through dependency and framework upgrades with strong test automation.
- Implement UI test automation and BDD practices to ensure quality.
- Collaborate with enterprise architects and scrum teams to translate architecture into scalable solutions.
- Apply reusable patterns and best practices for architectural consistency.
- Participate in architecture and code reviews and technical discussions aligned with enterprise standards.
- Document designs and decisions with clear technical writing.
- Troubleshoot production issues, optimize performance, and deliver robust features.
- Contribute to both new feature development and ongoing production support in Agile sprints.
Experience Requirements:
- 5+ years of hands-on software engineering experience.
- Advanced proficiency with Java and the Spring Boot ecosystem.
- Experience with AWS Cloud services such as ECS or EKS, Lambda, and RDS or Aurora, and IaC tools like CDK or CloudFormation.
- Experience with Angular. Familiarity with micro-frontend architecture using module federation is a plus.
- Background in microservices architecture and modernization patterns such as the strangler pattern.
- Strong technical writing and communication skills.
- Collaborative approach and effective problem solving in cross-functional teams.
- Comfort with AI-enabled tools and willingness to learn and apply emerging technologies. Experience with GitLab CI/CD and Copilot is beneficial.
- Preferred experience with FedRAMP High, FISMA, or similar compliance environments.
- Track record in reducing technical debt through refactoring and automation.
- Familiarity with CI/CD, artifact management, and security scanning.
- Familiarity with observability tools such as CloudWatch, Grafana, and OpenSearch.
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.
-
Lead Software Engineer
Boston, MA
Description: Hybrid at least 2 days per week in office in Wakefield, MA Our client seeks a Lead Software Engineer for the CDP team to drive design, delivery, technical strategy, and execution for critical data systems. You will define engineering stand...
Date Posted: 08/10/2026 Recommended
-
Agentic AI, AI & Data Science Engineer
Aberdeen Proving Ground, MD
Description: On-site in Aberdeen Proving Ground, MD Our client seeks an Agentic AI, AI & Data Science Engineer to develop mission-focused AI/ML solutions, automation workflows, analytics capabilities, and agent-based systems that support Army readiness...
Date Posted: 08/10/2026 Recommended
-
Senior Software Developer
St. Louis, MO
Description: Hybrid 2-3 days on-site in St. Louis, MO Our client seeks a Senior Software Developer to support modernization and maintenance of a mission-critical enterprise application in AWS for the U.S. Treasury. The role requires full-stack developm...
Date Posted: 07/31/2026 Recommended
-
Senior Java Spring Boot Developer
1 Pershing Plaza, NJ
Description: Hybrid 4 days on-site in Jersey City, NJ Our client seeks a Senior Java Spring Boot Developer to build and integrate information flows across systems while enabling a consistent client experience through portals and APIs. The role is prima...
Date Posted: 08/11/2026 Recommended
-
Staff (Lead) Software Engineer
Burbank, CA
Description: Hybrid 4 Days a week on-site in Burbank, CA Our client seeks a Staff (Lead) Software Engineer to build the next generation of intelligent infrastructure for the Studio Digital Supply Chain. The role blends backend engineering, workflow, an...
Date Posted: 08/07/2026 Recommended
-
Sr Software Engineer
Greenwood Village, CO
Description: Hybrid 4 onsite / 1 work from home in Greenwood Village, CO Data driven decision-making is a core tenant of our client, a Fortune 500 telecommunications provider. This agentic AI development team enables this process and oversees an intern...
Date Posted: 07/29/2026 Recommended
-
Senior AI Engineer/Databricks Architect
Anywhere
Description: Remote Our client seeks a Senior AI Engineer to design, build, and deploy production-grade AI applications and agentic workflows at scale within the insurance domain. The role requires strong software engineering fundamentals, Databricks e...
Date Posted: 08/12/2026 Recommended
-
Senior Security Engineer
Los Angeles, CA
Description: Hybrid Fully Remote until West LA office opens - then 3x a week onsite in Los Angeles, CA Our client is seeking an experienced Senior Security Engineer with a focus on security architecture assessments across on-premises and Azure environm...
Date Posted: 08/20/2026 Recommended
-
Senior Full Stack Java Developer
Anywhere
Description: Remote Our client is seeking a Senior Full Stack Java Developer to build and support healthcare applications. The role requires hands-on development across backend and frontend with emphasis on healthcare integrations. The developer will d...
Date Posted: 07/29/2026 Recommended
-
Research Data Architect
St. Louis, MO
Description: Hybrid 4 days on-site, 1 day work from home in St. Louis, MO Our client seeks a Research Data Architect to design and modernize data architecture supporting prominent research platforms, including FRED. The role will define scalable data p...
Date Posted: 08/26/2026 Recommended
-
Full Stack Software Engineer
Anywhere
Description: Remote Our client is seeking a Full Stack Software Engineer to join the U.S.-based Enterprise Services engineering team focused on sustaining, enhancing, and modernizing business-critical enterprise applications. The role rotates across pr...
Date Posted: 08/11/2026 Recommended
-
Senior Java Developer
Lake Mary, FL
Description: On-site in Lake Mary, FL Our client is seeking a Senior Java Developer to design, build, and enhance enterprise applications that support high-volume, low-latency, real-time processing. The role contributes to distributed systems architect...
Date Posted: 08/03/2026 Recommended
-
Product Manager, AI-Enabled Member Experience
Anywhere
Description: Remote We are seeking a senior Product Manager to help drive the transformation of our client's member experience through a new AI-first digital ecosystem. This role will focus on mobile-first product experiences, intelligent search and me...
Date Posted: 08/13/2026 Recommended
-
Senior Software Engineer
Los Angeles, CA
Description: Hybrid: Fully Remote until West LA office opens - then 3x a week onsite in Los Angeles, CA Our client seeks a Senior Software Engineer to build scalable, secure, and resilient platform services. You will design backend services and APIs, e...
Date Posted: 08/11/2026 Recommended
-
Full Stack Engineer
Westlake, TX
Description: Hybrid Onsite Every Other Week in Westlake, TX Our client seeks a technologist to design, build, and maintain scalable cloud-native applications for Fidelity Medicare Services. The role requires collaboration with technical leads, product,...
Date Posted: 08/24/2026 Recommended
-
Snowflake Developer – .NET / SSIS
4100 Coca Cola Plaza
Description: Hybrid 4/1 in Charlotte, NC Our client seeks a Snowflake Developer with .NET / SSIS to design and deliver enterprise integrations, ETL pipelines, and API-based solutions supporting Sales, Service, and Distribution. The role emphasizes Snow...
Date Posted: 08/09/2026 Recommended
-
Senior Software Engineer
Concord, CA
Description: Hybrid 3 days onsite in either Concord, CA or Charlotte, NC or Dallas, TX Our client is seeking a Sr Software Engineer to support, enhance, and modernize its enterprise Kafka streaming platforms. This role combines technical expertise with...
Date Posted: 08/21/2026 Recommended
-
Full Stack Developer
1 Pershing Plaza, NJ
Description: Hybrid 4 days on-site in Jersey City, NJ Our client seeks a Full Stack Developer with Angular, AngularJS, and Java expertise to build and modernize an internal communications platform. The role will lead design and development across the s...
Date Posted: 08/04/2026 Recommended
-
Technical Product Manager
New York, NY
Description: Hybrid 4 days onsite in New York, NY Our client seeks two Technical Product Managers to drive outcomes within a high-volume retail fintech environment. One role will lead an individual pod of work. The other will provide technical oversigh...
Date Posted: 08/15/2026 Recommended
-
EHR/EMR Trainer
Anywhere
Description: Remote Our client seeks an EHR Trainer to develop, maintain, and deliver general training content and documentation for healthcare software users. The role emphasizes creation and upkeep of user guides, in-app job aids, and virtual trainin...
Date Posted: 07/28/2026 Recommended
-
Lead Full Stack Developer
Boston, MA
Description: Hybrid 4 days onsite in Boston, MA Our client seeks a Lead Full Stack Developer and offshore coordinator to serve as the primary liaison between business stakeholders, onsite leadership, and an established offshore development team support...
Date Posted: 07/30/2026 Recommended
-
Full Stack Engineer
Merrimack, NH
Description: Hybrid Onsite 5 days/week, alternating weeks in either Merrimack, NH or Westlake, TX Our client seeks a Full Stack Engineer to build omni-channel user experiences and supporting platforms for retail alternative investments and crypto solut...
Date Posted: 08/22/2026 Recommended
-
Mid Systems Engineer, CyberArk
Washington, DC
Description: Onsite in Washington, DC Our client seeks a Mid Systems Engineer, CyberArk, to support a Privileged Access Management program for a federal environment. The role will assist senior engineers with CyberArk deployment, operations, reporting,...
Date Posted: 08/10/2026 Recommended
-
Sr. Security Engineer (Trellix)
Washington dc, DC
Description: On-site in Washington, DC As a Sr. Security Engineer (Trellix), you will serve as the technical lead for our client's endpoint security and data protection ecosystem. You will balance day-to-day operational support with strategic cybersecu...
Date Posted: 08/25/2026 Recommended
-
Financial BA
Tysons Corner, VA
Description: Hybrid 3 days onsite / 2 days remote in Tysons Corner, VA Our client seeks a Financial Business Analyst to analyze, validate, and enhance automated surveillance systems across asset classes and regulatory domains. The role will bridge regu...
Date Posted: 08/06/2026 Recommended
-
Business Analyst
Washington, DC
Description: Hybrid 2 in office 3 days remote in Washington, DC Our client seeks a Business Analyst to support a DOJ-aligned program that develops and enhances the Consolidated Asset Tracking System. The role focuses on eliciting and documenting detail...
Date Posted: 08/24/2026 Recommended
-
Policy & Procedure Documentation Specialist
Anywhere
Description: Remote Our client seeks a senior technical writer responsible for policy documentation supporting the enterprise risk framework and management within the Canadian Wealth business segment. The specialist will develop, maintain, and enhance ...
Date Posted: 08/19/2026 Recommended
-
Senior Software Engineer – Backend
Anywhere
Description: Remote Our client seeks a Senior Software Engineer focused on backend Java development to design, build, and maintain scalable, data-intensive systems that power core products. You will participate in all phases of product development incl...
Date Posted: 08/09/2026 Recommended
-
Python Developer
Anywhere
Description: Remote Our client seeks a Python Developer to build and maintain automated cloud-based media workflows and REST API integrations for an SDVI Rally media supply chain project. The role focuses on scalable media processing infrastructure, mi...
Date Posted: 08/11/2026 Recommended
-
Technical Project Manager
Glendale, CA
Description: On-site 4 Days a week on-site in Glendale, CA Our client seeks a Content Security Project Manager to partner across Studio Technology and Operations. The role will drive cross-functional content security initiatives, coordinate technical a...
Date Posted: 08/26/2026 Recommended
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 contact fraud@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