Senior Java Engineer — Microservices, Cloud & Architecture

santander; España; On-site; EUR 156,000 - 196,000; Full time

Job summary

Santander is seeking a Senior Java Developer to join our enterprise software team in the United States. You will be a hands-on technical contributor responsible for design, development, troubleshooting and maintenance of high-availability applications.

You will lead architectural discussions, mentor junior developers, and drive performance, scalability and quality through modern practices such as TDD, CI/CD and microservices. Strong communication and problem-solving are essential.

Qualifications

• 9+ years hands-on Java development experience.
• Experience with Spring Boot, Spring JPA, and REST APIs.
• Strong knowledge of microservices, CI/CD pipelines, and cloud concepts.
• Proven ability to design, troubleshoot and optimize large-scale systems.
• Excellent written and verbal communication skills.

Responsibilities

• Act as a senior hands-on developer across multiple complex application initiatives.
• Lead technical analysis, design, development, and maintenance of complex software applications and components.
• Provide advanced expertise in troubleshooting complex applications, system, and performance issues.
• Design, implement, and support system enhancements, refactoring, and modernization efforts.
• Research, evaluate, and implement solutions for performance monitoring, tuning, scalability, and system configuration.
• Drive the development and maintenance of automated test suites and quality assurance practices.
• Contribute significantly to technical design and architectural decisions for complex projects.
• Accurately estimate effort, identify technical risks, and help plan delivery milestones.
• Mentor and provide technical guidance to associate and mid-level developers.
• Partner closely with architects, product owners, and business stakeholders to achieve key objectives.

Skills

Java expert

Distributed systems

CI/CD (Jenkins)

SQL

Secure coding

Problem-solving

Communication

Education

Bachelor's degree in CS/Related field

Tools

Spring Boot

Spring Data JPA

REST APIs

Microservices

Cloud platforms

Job description

Santander is seeking a Senior Java Developer to join our enterprise software team in the United States. You will be a hands-on technical contributor responsible for design, development, troubleshooting and maintenance of high-availability applications.

You will lead architectural discussions, mentor junior developers, and drive performance, scalability and quality through modern practices such as TDD, CI/CD and microservices. Strong communication and problem-solving are essential.