Senior Full Stack Engineer
Lake Mary, FL
Category: Development
Industry: Financial Services
Reference ID: JN -012026-105161
Date Posted: 01/22/2026
Shortcut: http://careers.eliassen.com/sxTA1b
Description:
Hybrid 4 days onsite in Lake Mary, FL
Our client is a global investments company that provides informed investment management and investment services across the financial lifecycle. The organization supports institutions, corporations, and individual investors worldwide with clearing and custody, technology, enterprise data management, and trading services. The team values reliable engineering practices, scalable systems, and strong data discipline.
This is a contract to hire opportunity. Applicants must be willing and able to work on a w2 basis and convert to FTE following contract duration. 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 $85.00/hr. w2
Responsibilities:
- Program well-designed, testable, and efficient code across front-end and back-end layers.
- Execute full lifecycle software development including requirements, design, implementation, testing, deployment, and maintenance.
- Design, develop, and optimize relational and NoSQL database schemas for OLTP and OLAP workloads.
- Write high-quality SQL and procedural code including stored procedures, functions, triggers, views, and reusable data access components.
- Build and integrate RESTful APIs and microservices with clean data contracts and reliable integrations.
- Develop modern front-end components using frameworks such as Angular or React with attention to accessibility and performance.
- Conduct code and design reviews for application and database components focusing on performance, security, and maintainability.
- Create flowcharts, ER models, data flow diagrams, and technical documentation.
- Apply security and privacy principles including secure coding, RBAC, encryption, input validation, auditing, and least privilege.
- Analyze, design, and develop unit, integration, and end-to-end tests and implement test automation for APIs, UIs, and database code.
- Develop verification plans, quality assurance procedures, and data validation and reconciliation checks.
- Participate in deployments following change controls and manage schema migrations, release automation, and rollback strategies.
- Troubleshoot, debug, and upgrade existing systems across the stack to ensure reliability, scalability, and completeness.
- Monitor and tune performance through query plans, indexing, partitioning, application profiling, caching, and CDN strategies.
- Recommend improvements for architecture, data models, code quality, and operational resilience.
- Demonstrate teamwork, promote component reuse, mentor peers on best practices, and contribute to internal standards.
Experience Requirements:
- 7+ years of full-stack development using Java, Spring Boot, REST, JavaScript or TypeScript, Angular or React, CSS or HTML, Node.js, or C#.
- Expert-level database experience with major RDBMS such as Oracle, SQL Server, or PostgreSQL and familiarity with NoSQL such as MongoDB.
- Advanced SQL and procedural extensions such as PL/SQL or T-SQL including complex query optimization, window functions, and CTEs.
- Strong data modeling across conceptual, logical, and physical layers with normalization and denormalization for OLTP and OLAP.
- Experience building and maintaining ETL or ELT pipelines using tools such as SSIS, Informatica, Talend, or dbt and orchestration with Airflow.
- Knowledge of application frameworks, microservices, and containerization and cloud patterns including Docker and Kubernetes.
- Ability to review test plans and test data with hands-on CI/CD, automated testing, and migration tooling such as Liquibase.
- Understanding of cross-platform interoperability including JDBC or ODBC, APIs, NT or intranet, and multiple toolkits.
- Strong grasp of security and privacy controls across the stack including secure coding, encryption, masking, auditing, and compliance fundamentals.
- Effective teamwork, communication, and organization with the ability to collaborate in fast-paced, cross-functional environments.
- Experience in the securities or financial services industry (preferred).
Education Requirements:
- Bachelor’s degree in Computer Science, Engineering, Information Systems, or related discipline, or equivalent work experience.
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:
- 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