Full Stack Java Developer

• Design, develop, and enhance Java-based applications supporting front-office trading and capital markets workflows
• Contribute to application modernization and uplift initiatives, including refactoring legacy components and improving performance, stability, and scalability
• Collaborate with other engineers, QA, and stakeholders to deliver high-quality solutions in a team-based Agile environment
• Support production-oriented development, including troubleshooting, defect resolution, and remediation work
• Ensure solutions align with security, compliance, and regulatory standards common to global financial institutions
• Document technical designs and actively participate in code reviews and knowledge sharing

• Strong hands-on Java development experience (backend-leaning full stack)
• Proven ability to work independently while collaborating effectively within a team
• Experience developing in enterprise or regulated environments (financial services strongly preferred)
• Comfortable working on complex, existing codebases rather than greenfield only
• Strong verbal and written communication skills; fluent English required

Preferred / Nice-to-Have Experience

• Exposure to Fixed Income or Capital Markets technology (trading, risk, market data, post-trade, etc.)
• Experience with common Santander-adjacent stacks such as:

• Spring / Spring Boot
• RESTful services and API-based architectures
• SQL and relational databases
• Front-end exposure (e.g., Angular, React, or similar)
• CI/CD tools (e.g., Jenkins, Git-based workflows)
• Cloud exposure (AWS or similar environments)

• Familiarity or curiosity around AI-assisted development, automation, or analytics
• Spanish language skills (nice to have, not required)

Apex Systems is a world class services business that incorporates industry insights and experience to deliver solutions that fulfill our clients' digital visions., Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click for more details.