US

Senior Java Engineer - Remote

UST

Madrid, ESremote countryPosted Aug 21, 2026
Posting intelligenceActively listed

Skills

fargatejenkinsdockerkafkajavaaws

About the role

Role description

We are still 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 and Great Place to Work company with over 35.000 employees all over the world and presence in more than 35 countries. We are leaders on digital technology services, and we provide large-scale technologic solutions to big companies.

What we look for?

We are looking for Senior Java Engineer (AWS) who will contribute to a project with one of our global customers, that is a global leader in credit cards, auto loans, banking and saving accounts.

Key Responsibilities:

Design, build, and maintain efficient, reusable, and reliable software

As part of the DevOps model you build it, you own it and you run it , ensure stable and smooth maintenance of delivered software

Ensure the best possible performance, quality, and responsiveness of applications

Work effectively both independently and as part of a team

Participate in complete Software Development Life Cycle, including occasional QA and peer review

Work to achieve the goals and vision articulated by Product Management

Innovate within your team, initiative area and contribute within your technical domain.

Mandatory requirements:

Very strong Java programming skills and knowledge of building API s

Deep understanding of all stages in the Software Development Life Cycle

Deep understanding of design patterns and principles (e.g. SOLID principles)

Experience with different testing types: Unit Testing, API Testing, Acceptance Testing, Load Testing. CARGA: JMEter, Gatlin

Experience with distributed architectures like SOA or MSA

Experience with event-driven architectures. ASíncrn, Mensajería, colas, RabbitMQ, Kafka.

Experience with REST APIs

Relevant experience with AWS services (for mid profiles this is a desired skill, not a must). SNS; SQS. Lambdas,. Fargate, Serverless.

Experience with Gradle or Maven

Experience with Enterprise Jenkins

Experience working in an Agile fashion (e.g. Scrum, SAFe)

Desired Skills

Experience working in a highly regulated environment, like banking

Experience with Docker

AWS certification

Experience with serverless technologies (AWS Lambda, AWS Fargate)

Experience with TDD and BDD

¿What can we offer?

23 days of Annual Leave plus the 24th and 31st of December as discretionary days!

Numerous benefits (Heath Care Plan, Internet Connectivity, Life and Accident Insurances).

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

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. UST is 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.

Skills

AWS, Java, Test-Driven Development, Software Design, API Testing, AWS Lambda, Microservices, Unit Testing, BDD, REST, Jenkins

About UST

UST is a global digital transformation solutions provider. For more than 20 years, UST has worked side by side with the world’s best companies to make a real impact through transformation. Powered by technology, inspired by people and led by purpose, UST partners with their clients from design to operation. With deep domain expertise and a future-proof philosophy, UST embeds innovation and agility into their clients’ organizations. With over 30,000 employees in 30 countries, UST builds for boundless impact - touching billions of lives in the process.

Questions about this role

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Compensation for Software Engineer roles in Spain varies widely by seniority, employer size, and remote vs onsite arrangement. Check the salary range on this listing when published, or browse our Software Engineer hub for Spain medians across recent openings.

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