Senior Full Stack Developer

More in details, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over 35.We are leaders on digital technology services, and we provide large-scale technologic solutions to big companies.

For our specialized team, we are looking for a Senior Full Stack Software Engineer , with at least 9 years of experience in the position.

Work Location : Madrid (Spain) / Work Mode : Hybrid (3 days in the office, 2 days remote)

o Lead cross-team design reviews, ensuring alignment with performance, security, and scalability goals.

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

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

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

9–12 years building and scaling distributed systems in agile / DevOps organizations.

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

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

Strong frontend acumen with React, JavaScript / TypeScript, and API-first integration (OpenAPI).

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

Backend : Java, Spring Boot, Entity Framework, REST

Frontend : React, Angular, JavaScript / TypeScript

Data & Messaging : Oracle, PostgreSQL, Kafka, Avro

Infrastructure & DevOps : Kubernetes (PKS), Docker, Helm, Terraform

English C1

Numerous benefits (Health Care Plan, teleworking compensation, Life and Accident Insurances).

Retribución Flexible´ Program : (Meals, Kinder Garden, Transport, online English lessons, Health Care Plan…)

Free access to several training platforms

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