Senior Java Engineer - Distributed System We are looking for the very Top Talent and we would be delighted if you were to join our team More in details, UST is a multinational company based in North America, certified as a Top Employer company with over 35,000 employees all over the world and presence in more than 30 countries. We are leaders in digital technology services, and we provide large-scale technological solutions to big companies. What are we looking for? We are seeking a Senior Java Developer with strong software engineering expertise and a DevOps mindset to build and maintain efficient, scalable, and reliable software solutions. The ideal candidate enjoys creating robust APIs, distributed systems, and best-practice frameworks that enable teams to deliver high-quality applications. You ll work on a global customer project in the financial services sector a leading provider of credit cards, auto loans, banking, and savings accounts. Position 100 remote for candidates based in Spain. On-call support: Paid 24/7 on-call rotation. One week on-call every 5-6 weeks with compensation for on-call hours. What we re looking for Essential

- Strong Java programming skills with deep knowledge of building production-grade APIs and distributed systems.
- Solid understanding of all stages in the Software Development Life Cycle (SDLC) and ability to contribute across the full lifecycle.
- Deep understanding of design patterns and principles (e.g., SOLID principles, microservices patterns).
- Experience with multiple testing types: Unit Testing, API Testing, Acceptance Testing, and Load Testing.
- Experience with distributed architectures such as SOA (Service-Oriented Architecture) or MSA (Microservices Architecture).




- Experience designing and implementing event-driven architectures and REST APIs.
- Strong grasp of the build it, own it, run it DevOps model you take responsibility for design, deployment, and maintenance of your solutions.
- Experience with build tools like Gradle or Maven and Enterprise Jenkins for CI/CD.
- Proven ability to work effectively both independently and as part of a team in an Agile environment (e.g., Scrum, SAFe).
- Comfortable operating independently in a fast-moving program and contributing from day one.
- Good engineering practices as second nature: API design, automated testing, observability, documentation, and secure-by-default delivery.

Nice to have
- Relevant experience with AWS services and AWS certifications.
- Experience working in highly regulated environments, particularly banking and financial services.
- Experience with Docker and containerization.
- Experience with serverless technologies (AWS Lambda, AWS Fargate).
- Familiarity with Test-Driven Development (TDD) and Behavior-Driven Development (BDD) practices.
- Experience building and maintaining internal developer platforms or tools.

What you ll be like
- A hands-on engineer with a builder s mindset, happy close to the code and shipping practical capability.
- Passionate about software quality, performance, and responsiveness of applications.




- Opinionated about good application development, and able to turn that judgement into patterns others can follow.
- Pragmatic and self-sufficient, able to make progress where priorities shift and drive solutions end-to-end.
- Security- and automation-conscious. You build quality and controls in, rather than relying on manual processes.
- Collaborative across development, architecture, DevOps, and product stakeholders.
- Innovative within your team and technical domain you contribute ideas and drive improvement initiatives.
- Comfortable working in a highly regulated financial services environment with compliance and quality requirements.

What can we offer?
- 23 days of Annual Leave plus the 24th and 31st of December as discretionary days
- Numerous benefits (Health Care Plan, teleworking compensation, Life and Accident Insurances).
- Flexible Compensation Program: (Meals, Childcare Support, Public Transport, Professional Development, Health Care Plan options )
- Free access to premium training platforms and continuous learning opportunities.
- Professional stability, career development, and clear advancement paths.
- Competitive referral bonus program share your network and benefit
- Choice between adaptable payment schedules (12 or 14 payments per year).
- Genuine Work-Life Balance initiatives (flexibility, 100 remote work policy, compressed schedules during summer )
- Access to exclusive UST Club Platform discounts and gym access discounts.
- Opportunities to work on cutting-edge banking and financial technology solutions.
- Collaborative, inclusive culture with a integral perspective.

Ready to make an impact? If

📌 Senior Java Engineer (España)
🏢 Ust
📍 España