?We are 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 company with over 35.000 employees all over the world and presence in more than 30 countries. We are leaders on digital technology services, and we provide large-scale technologic solutions to big companies. ? What are we looking for?

We are currently looking for an Application Responsible (AR) & System Architect to join a strategic project in the banking sector, working with a critical internal application based on the Actico Rules technology stack. ?Location: Hybrid. Madrid city center (Sol area). 3 days a week in the office.

?Language: English is a must. Spanish desirable. ? Key Responsibilities:

Take end-to-end ownership of a critical business application, ensuring availability, stability, and performance.

Act as the main point of contact for operational, technical, and functional stakeholders.

Perform application health checks, performance tuning, and capacity planning activities.

Coordinate incident management, change requests, and risk assessments.

Collaborate with development and infrastructure teams to resolve issues and deliver enhancements.

Maintain accurate application documentation, runbooks, and service records.

Drive application lifecycle activities, including modernization, rationalization, or decommissioning initiatives.

Validate technical requirements and non-functional requirements (NFRs).

Collaborate with Enterprise Architects on solution design and architecture evolution.





Ensure compliance with security standards, cloud-first strategies, and integration guidelines.

Identify technical debt, scalability challenges, and modernization opportunities.

Promote the adoption of reusable enterprise services and best practices. ?Mandatory Requirements:

Degree in Computer Science, Engineering, or a related discipline.

Proven experience supporting front-office and/or middle-office banking applications. ?Strong knowledge of:

Application monitoring tools

Integration patterns (Web Services, Message Queues, File Transfer)

Database schema design, SQL, query optimization, and log analysis

Git version control

Jira or similar ticketing tools

Practical understanding of enterprise architecture principles and secure design patterns.

Hands-on experience with Java-based systems and development environments.

Experience with Oracle Database and SQL.

Knowledge of Actico platform operations.

Strong analytical and problem-solving skills.

Excellent communication and stakeholder management capabilities.

Ownership mindset, proactive attitude, and teamwork orientation.

Professional English communication skills ?Nice to Have:





Experience within Compliance or Regulatory domains.

Certifications or training related to Visual Rules / Actico Rules.

Experience in cloud migration initiatives.

Knowledge of observability, API design, and modern integration architectures.

German language skills. ?Work schedule

Business Hours. No intensive working days for friday or summer. ?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).

? `Retribución Versátil´ 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, don’t hesitate to apply and we’ll get in touch to fill you in detail. 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.

📌 Application Responsible & System Architect (Actico Rules) | Madrid
🏢 UST España u0026 Latam
📍 Madrid