Senior Full-Stack Developer

Senior Full-Stack Developer

Lake Mary, FL

Type: Contract

Category: Development

Industry: Financial Services

Reference ID: JN -022026-105662

Date Posted: 05/25/2026

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Description:

Hybrid 4 days onsite in Lake Mary, FL

Our client seeks a Senior Full-Stack Engineer with a backend and database focus to build and support applications for alternative asset servicing and private equity funds. The role emphasizes Java, Spring Boot, REST APIs, messaging, and expert SQL across design, optimization, and migration. The engineer will articulate system design, own code-level delivery, and perform live technical validation. Frontend work is lighter and centers on Angular. The team values strong fundamentals, clear communication, and the ability to defend experience with depth.

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 $85.00/hr. w2

Responsibilities:

• Program well-designed, testable, and efficient code across frontend and backend layers.

• Execute full lifecycle software development from requirements through maintenance.

• Design, develop, and optimize relational and NoSQL database schemas for OLTP and OLAP.

• Write high-quality SQL and procedural code, and reusable data access components.

• Build and integrate RESTful APIs and microservices with clean data contracts.

• Develop modern frontend components using Angular or React with attention to performance and accessibility.

• Conduct code and design reviews with focus 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, and auditing.

• Develop unit, integration, and end-to-end tests and implement test automation for APIs, UIs, and database code.

• Develop verification plans, QA procedures, and data validation and reconciliation checks.

• Participate in deployments, manage schema migrations, release automation, and rollback strategies.

• Troubleshoot, debug, and upgrade systems to ensure reliability and scalability.

• Monitor and tune performance including query plans, indexing, partitioning, profiling, caching, and CDN strategies.

• Recommend improvements in architecture, data models, code quality, and operational resilience.

• Demonstrate teamwork, promote component reuse, mentor peers, and contribute to internal standards.

Experience Requirements:

• 7+ years of full-stack development with Java, Spring Boot, REST, JavaScript/TypeScript, Angular/React, CSS/HTML, Node.js, and C#.

• Expert-level database skills with major RDBMS such as Oracle, SQL Server, or PostgreSQL, and familiarity with NoSQL.

• Advanced SQL and procedural extensions including complex optimization, window functions, and CTEs.

• Strong data modeling across conceptual, logical, and physical design for OLTP and OLAP.

• Experience building and maintaining ETL/ELT pipelines and orchestration.

• Knowledge of application frameworks, microservices, and containerization or cloud patterns.

• Ability to review test plans and test data with hands-on CI/CD and automated testing experience.

• Understanding of cross-platform interoperability and multiple toolkits.

• Strong grasp of security and privacy controls across the stack.

• Teamwork, communication, and organization skills in cross-functional environments.

• Preferred: securities or financial services industry experience.

• Interview process includes MS Teams rounds and a final onsite in Lake Mary; frontend is less critical than backend and SQL.

Education Requirements:

• Bachelor's degree in Computer Science, Engineering, Information Systems, or related discipline, or equivalent work experience.

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 ( View email address on click.appcast.io , View phone number on click.appcast.io) 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 View email address on click.appcast.io .

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!