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# Senior Java Developer (Aws) - Remote, Madrid

- **Company:** Ust
- **Location:** Madrid, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Amazon Web Services, Unit Testing, Software Design Patterns, DevOps, Digital Technology, Distributed Systems, Gradle, Internetworking, Apache JMeter, Load Testing, Apache Maven, Scrum Methodology, RabbitMQ, Service-Oriented Architecture, Software Engineering, Gatling, AWS Lambda, Event Driven Architecture, Solid Principles, AWS Fargate, Apache Kafka, Api Design, Restful APIs, Amazon Simple Queue Service (SQS), Api Management, Serverless Computing, Docker, Jenkins
- **Published:** September 16, 2026
- **Apply:** https://www.buscojobs.com.es/senior-java-developer-aws-remote-madrid-en-madrid-ID-370705385

## About the Role

Mandatory requirements: - Very strong Java programming skills and knowledge of building APIs - 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, JMeter, Gatling - Experience with distributed architectures like SOA or MSA - Experience with event-driven architectures.
Asynchronous, Messaging, queues, 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?

## Description

Senior Java Developer (AWS) - RemoteWe 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 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 APIs - 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, JMeter, Gatling - Experience with distributed architectures like SOA or MSA - Experience with event-driven architectures.Asynchronous, Messaging, queues, 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 (Health Care Plan, Internet Connectivity, Life and Accident Insurances).- Retribución Flexible Program: (Meals, Kinder Garden, Transport, online English lessons, Health 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.Java, API, AWS, Unit Testing, API Testing, Acceptance Testing, Load Testing


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