Senior Java Software Engineer - HYBRID, Madrid

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Senior Java Software Engineer - HYBRID, Madrid, madrid

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Client : Location : madrid, Spain

Job Category : Other

EU work permit required :

Yes

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Posted : Expiry Date :

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Job Description :

• ? UST is looking for the very Top Talent…and we would be delighted if you were to join our family!

More in detail, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over 35.000 employees all over the world and a presence in more than 35 countries. We are leaders on digital technology services, and we provide large-scale technologic solutions to big companies.

? What are we looking for?

For our specialized team, we are looking for a Senior Software Engineer , with at least 6 years of experience in the position.

About the Role

As a Senior Software Engineer, you’ll take technical ownership of critical systems and drive architectural direction across multiple teams. In our agile, DevOps-centric environment, you’ll lead the end-to-end lifecycle of high-impact services—shaping design, delivery, and operations—while mentoring engineering leads and influencing best practices at scale.

Work location : Madrid (Spain)

Work mode : Hybrid (3 days in the office, 2 days remote)

? Key Responsibilities

Technical Strategy & Architecture

Define and evolve the architecture for large-scale, microservices-based systems. o Lead cross-team design reviews, ensuring alignment with performance, security, and scalability goals.

DevOps & Delivery Excellence

Architect and optimize CI / CD pipelines for complex, multi-team workflows.

Champion observability, resilience, and “everything as code” across infrastructure and deployments.

Feature Leadership & Stakeholder Partnership

Own the delivery of major features, coordinating with Product, UX, and Operations to meet business objectives.

Act as a senior technical liaison for stakeholders—translating strategic goals into actionable roadmaps.

Quality & Engineering Standards

Establish and enforce coding standards, testing requirements (TDD / BDD), and performance benchmarks.

Introduce and evangelize new tools, frameworks, and processes that elevate team productivity and code quality.

Mentorship & Organizational Impact

Mentor senior and mid-level engineers—guiding career growth, architectural thinking, and technical decision-making.

Lead brown-bags, hackathons, and guild meetings to foster a culture of continuous learning and innovation.

? Candidate Profile

6-9+ years building and scaling distributed systems in agile / DevOps organizations.

o BS / MS in Computer Science (or equivalent industry experience).

Expert in Java, Spring Boot, RESTful microservices, and event-driven architectures (Kafka, Avro).

Deep familiarity with Kubernetes orchestration, container security, and infrastructure as code.

Architectural & Analytical Skills

Proven track record designing for high availability, performance, and maintainability.

Skilled at performance tuning, capacity planning, and defining non-functional requirements.

Exceptional English communication—able to articulate complex technical strategies to executives and engineers alike.

Demonstrated ability to influence across organizational boundaries and drive consensus.

Entrepreneurial mindset : you spot opportunities, prototype solutions, and lead adoption of new technologies.

Passion for continuous improvement and fostering a world-class engineering culture.

Backend : Java, Spring Boot, Entity Framework, REST

APIs & Modeling : API-first (OpenAPI), UML

Languages :

Spanish C2

? 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).

? Free access to several training platforms

? Professional stability and career plans

? UST also, compensates referrals from which you could benefit when you refer professionals.

? The option to pick between 12 or 14 payments along the year.

? Real Work Life Balance measures (flexibility, WFH or remote work policy, compacted hours during summertime…)

? UST Club Platform discounts and gym Access discounts

? If you would like to know more, do not hesitate to apply and we’ll get in touch to fill you in details. We are waiting for you!

In UST we are committed to equal opportunities in our selection processes and do not discriminate based on race, gender, disability, age, religion, sexual orientation or nationality. We have a special commitment to Disability & Inclusion, so we are interested in hiring people with disability certificate.

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