Application Responsible / System Architect

We are looking for an experienced Application Responsible / System Architect to take end-to-end ownership of a business-critical internal application built on the Actico Rules platform.

This role combines application ownership, operational excellence, and system architecture, ensuring the stability, performance, and continuous evolution of a key banking application. You will collaborate with Enterprise Architects, development teams, infrastructure specialists, and business stakeholders to deliver secure, scalable, and high-performing solutions aligned with Julius Baer’s technology strategy.

• Take end-to-end responsibility for the assigned application, ensuring availability, stability, performance, and lifecycle management.
• Act as the primary point of contact for operational, functional, and technical stakeholders.
• Coordinate incident resolution, problem management, and application changes.
• Perform application health checks, capacity planning, and performance optimization.
• Conduct impact and risk assessments for application changes.
• Maintain accurate operational documentation, runbooks, and service records.
• Lead application lifecycle activities, including modernization, rationalization, or decommissioning when appropriate.
• Ensure compliance with non-functional requirements (NFRs), security standards, and operational best practices.
• Collaborate with Enterprise Architects to evaluate new features and architectural improvements.
• Ensure all solutions comply with enterprise architecture principles, security baselines, cloud-first strategies, and integration standards.
• Contribute to target architecture design, including modularization, API enablement, observability, and cloud migration initiatives.
• Identify technical debt, scalability challenges, and modernization opportunities.
• Promote the reuse of shared enterprise services such as identity management, logging, monitoring, and alerting.
• Work closely with development, infrastructure, and business teams across the organization.
• Support operational excellence through continuous improvement initiatives.
• Participate in Agile delivery and contribute to technical planning and solution design.
• Ensure knowledge sharing and maintain high documentation standards across the application lifecycle.

• Degree in Computer Science, Engineering, or a related technical field.
• Experience supporting enterprise applications, ideally within the banking or financial services industry.
• Hands-on experience with Java application development and system engineering.
• Experience working with Oracle Database and SQL.
• Experience with application monitoring, troubleshooting, and production support.
• Knowledge of enterprise integration patterns, including web services, messaging, and file transfer.
• Experience using Git for source control and Jira for issue tracking.
• Good understanding of enterprise architecture principles and secure software design.
• Experience with Actico Rules platform operations is highly desirable.
• Previous experience in Compliance or Regulatory environments is considered a plus.

• Good English communication skills (minimum B2).

• Application monitoring and log analysis.
• IDEs for Java development and debugging.
• Cloud-first architectures and API-based integrations.

• Join one of the world’s leading private banking technology organizations.
• Work on business-critical banking applications supporting an international financial institution.
• Be part of an experienced, collaborative, and highly skilled engineering team.
• Continuous learning, professional development, and long-term career growth opportunities.
• Competitive salary based on your experience.
• International environment with close collaboration across Switzerland and Spain.

If you’re looking for your next challenge as an Application Responsible / System Architect and want to contribute to the evolution of critical banking platforms at one of the world’s leading private banks, we’d love to hear from you!

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At AKKODIS, a global leader in engineering and digital services, we’re looking for you!

We are an international company specialized in technology, engineering, and innovation, driving the digital transformation of leading organizations across multiple industries. With more than 55,000 experts in over 30 countries, we help our clients build, modernize, and optimize their critical business systems.

We are currently looking for an Application Responsible / System Architect (Java & Actico Rules) to join an international banking project with Julius Baer, one of the world’s leading Swiss private banking groups.