> Markdown version of [/jobs/ext/1987250-application-responsible-system-architect](https://www.wearedevelopers.com/jobs/ext/1987250-application-responsible-system-architect). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Application Responsible / System Architect - **Company:** Julius Baer - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Application Lifecycle Management, Systems Engineering, JIRA, Cloud Computing, Software Documentation, Databases, Software Debugging, File Transfer, HP Systems Insight Manager, Identity and Access Management, Issue Tracking Systems, Log Analysis, Performance Tuning, Software Architecture, SQL Databases, Systems Architecture, Web Services, Enterprise Application Integration, Data Logging, Enterprise Software Applications, Technical Debt, Git, Information Technology, CIS Benchmarks, Api Design, Software Version Control - **Published:** August 8, 2026 - **Apply:** https://www.jobleads.com/es/job/ebc51d697ea93b9edfc331db894557f4f ## About the Role * 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. ## Description 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. ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [Branch your database like your code: How schema changes and pull requests go hand in hand](https://www.wearedevelopers.com/videos/350-branch-your-database-like-your-code-how-schema-changes-and-pull-requests-go-hand-in-hand) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) ## Related Articles - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Starter Kit For Job Applications For Developers](https://www.wearedevelopers.com/magazine/7-starter-kit-for-job-applications-for-developers)