Senior Java Developer

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 architecture, microservices, and modern engineering practices across the SDLC while ensuring scalability, resiliency, performance, and maintainability.

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: $48.00 to $58.00/hr. w2

JN -082026-108160

• Design, develop, test, deploy, and support enterprise-grade applications for high-volume transaction processing and critical business functions.
• Write clean, efficient, maintainable, and well-documented code using Java 17+ and modern frameworks.
• Develop scalable distributed systems, microservices, and RESTful APIs.
• Translate business and technical requirements into effective software solutions.
• Design components, workflows, and integrations with emphasis on scalability, resiliency, performance, and maintainability.
• Troubleshoot, debug, enhance, and upgrade applications and services.
• Participate across all SDLC phases including requirements, architecture, design, coding, testing, deployment, and production support.
• Contribute to architecture decisions and design discussions.
• Produce flowcharts, technical documentation, design specifications, BRDs, and SRDs.
• Ensure adherence to security, privacy, governance, and compliance standards.
• Promote software reuse and leverage shared platforms and services.
• Support cross-platform interoperability and enterprise integration.
• Design and develop REST APIs and integration services.
• Create and optimize SQL, stored procedures, and transactions for Oracle and other RDBMS.
• Utilize PySpark, Snowflake, and large-scale data platforms when required.
• Support real-time and low-latency processing environments.
• Develop verification plans and QA procedures.
• Implement automated testing with JUnit, Cucumber, or similar tools.
• Conduct code reviews and participate in peer reviews.
• Review test plans, data, and results for quality and reliability.
• Support deployments following change control processes.
• Participate in production support, root cause analysis, incident resolution, and performance tuning.
• Monitor application health, observability, and operations.
• Address technical debt and implement enhancements.
• Recommend continuous improvement and engineering best practices.
• Leverage AI-enabled development tools to improve efficiency and quality.
• Collaborate with architects, developers, product teams, data engineers, project managers, and stakeholders.
• Mentor junior engineers and support team development.
• Share knowledge and contribute to technical communities and continuous learning.
• Promote teamwork, accountability, and shared ownership.

• Bachelor's degree in Computer Science, Engineering, Information Technology, or related field, or equivalent experience.
• 5+ years of software development in enterprise environments.
• Hands-on Java 17+ and modern Java development practices.
• Enterprise applications, distributed systems, and microservices architectures.
• Spring Framework, Spring Boot, and REST API development.
• SQL, stored procedures, transaction management, and Oracle or other relational databases.
• Experience with PySpark, Snowflake, or similar large-scale data technologies.
• Software architecture, scalability, resiliency, observability, and performance optimization.
• Automated testing frameworks such as JUnit and Cucumber.
• Knowledge of front-end and back-end development concepts.
• Experience across the full SDLC including production support.
• Strong problem-solving, communication, and organizational skills.
• Preferred: Kafka or MQ platforms.
• Preferred: Docker, Kubernetes, containerization, and cloud-native development.
• Preferred: AWS, Azure, or GCP.
• Preferred: NoSQL databases.
• Preferred: Linux scripting and automation.
• Preferred: Support for highly available production applications.
• Preferred: AI-assisted development tools such as Windsurf, OpenSpec, or GitHub Copilot.
• Preferred: Financial services or securities industry experience.

• Bachelor's degree in Computer Science, Engineering, Information Technology, or related field, or equivalent 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 careers.eliassen.com , Show phone number) 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.

· 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 careers.eliassen.com .

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!