Description
**Role description** **What are we looking for?**
We are seeking a **Level 3 Application Support Engineer** with **at least 3 years of experience** in mission-critical, high-availability environments to join a financial sector project. The selected candidate must have hands-on experience with JAVA and Kafka, and will be responsible for managing complex incidents, monitoring applications, and continuously improving platforms built on distributed architectures.
**Location**: Madrid (hybrid: 3 days in office / 2 remote)
**English**: C1 (Advanced)
On-call participation
**Key responsibilities**
* Managing Level 3 critical incidents and performing root cause analysis.
* Providing support and maintenance for Java-based applications and microservices architectures.
* Resolving incidents related to Kafka, Kubernetes, Linux, and relational databases.
* Collaborating with development, operations, and business teams to ensure platform stability.
* Participating in deployments, technical validations, and reliability improvements.
**Key requirements**
We seek professionals with at least 3 years of experience in L3 Application Support, Site Reliability Engineering (SRE), or Software Engineering roles within high-availability environments.
**Mandatory technologies:**
* Java and Spring Boot
* Kafka
* SQL and relational databases
* Kubernetes
* Linux
* Microservices and REST APIs
**Nice-to-have**: React, experience in Fintech/Digital Banking environments, and CI/CD tools (GitLab, Jenkins).
Additionally, we seek individuals with an analytical mindset, problem-solving orientation, and the ability to thrive in international environments.
**What do we offer?**
* 23 vacation days \+ December 24 and 31.
* Benefits (health insurance, remote work, life and accident insurance).
* Flexible compensation program (meal vouchers, childcare, transportation, online English courses, etc.).
* Free access to training platforms.
* Professional stability and career development plan.
* Employee referral program with incentives.
* Option of 12 or 14 annual payments.
* Work-life balance measures and labor flexibility.
* Discounts at UST Club and gym.
If you want to learn more, **apply now and we’ll contact you!**
**Commitment to diversity**: At UST, we promote equal opportunities and do not discriminate based on race, gender, disability, age, religion, sexual orientation, or nationality. We are especially committed to inclusion and actively encourage the hiring of people with disabilities.
**Skills**
Microservices, Apache Kafka, Kubernetes, Incident Management, Java, Issue Analysis, Spring Boot
**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.