Freelancer profile translated to English.
Back to original languageAbout Catalin
I am Catalin Patrut, an experienced Solution & Integration Architect and Full-Stack developer with a proven track record in the IT industry. With my in-depth experience in system architecture, integration, and software development, I bring both strategic and technical expertise to design and implement scalable, secure, and high-performance solutions.
English
Native or bilingual
German
Fluent
Remote only
Primarily works remotely
Experience
- Vontobel (CH)Solution & Integraton ArchitectOctober 2023 - Today (2 years and 8 months)Zurich, SwitzerlandAPI Management & Integration- Responsibility for 70+ APIs, including strategic onboarding and promotion- Close collaboration with internal and external stakeholdersDeveloper Portal & “My API”- Design and implementation of a custom management area for API owners- Integration of RBAC and Active Directory (Angular, Quarkus, Keycloak)Data Security & Governance- Consulting the Data Security department, helping to shape the automation and governance strategy- Leading a data backbone project: reduction of complex processes (several months → 5 min) with Kafka, Kafka Connect, Tekton and PythonAutomation & CI/CD- Development of a “Monorepo Commander” for effective control of Tekton pipelines (Helm, Argo, Maven, NPM, Python, Golang)- Solving critical infrastructure problems, accelerating build and release processesEvent- & API-based solutions- Implementation of an API-driven B2B file transfer solution with CLI clients- Increasing the speed and reliability of transfer processesServerless & Native Code- Promotion of GraalVM/Quarkus for high-performance, serverless applicationsSpring Boot & Security- Realization of comprehensive Keycloak integrations (OAuth2, Client-Credential-Flows)- Development of reusable internal librariesArchitecture & Collaboration- Active participation in architecture and strategy meetings- Cooperation with other financial institutions, evaluation of new technologies24/7 operation- Ensuring smooth operation for Kafka, API management, AMQ and internal file transfersCross-Team Troubleshooting- Analysis and solution of complex OpenShift infrastructure problems- Improving system stability and collaborationTechnology Consulting & Mentoring- Supporting various teams in technology selection and approaches- Creation of technical guidelines, active contribution to the DevOps Council
- Vontobel (CH)API Specialist & Integration EngineerOctober 2020 - October 2023 (3 years)APIM platform extension- Expansion of the APIM platform through modern pipelines and a state-of-the-art developer portal- Significant increase in efficiency and noticeably better user experienceCost & Downtime Reduction- Conversion from Ansible to a Kubernetes-based operator installation- Migration of the API publication process from Jenkins to a customized interface- Publication time reduced from 4 minutes to 5 seconds (including saga pattern & transaction management)Data Migration & Uptime Optimization- Leading the migration from Oracle to PostgreSQL using a Quarkus service and “ora2db” tool- Seamless transfer via API calls in just 2 minutes, without manual intervention- Writing a comprehensive recovery manual, testing high availability and disaster recovery- Full responsibility for PostgreSQL administration (security, role and user management, pgAdmin installation)- Successful introduction led to wider use in the company (including Kafka for data streaming, file transfer for auditing)OpenShift 4 & Client Onboarding- Accompanying the OpenShift 4 introduction, simplifying client onboarding to APIM- Development of reusable Quarkus and Spring libraries to support OAuth2, ClientID and API key mechanismsDeveloper Portal Innovation- Identification of weaknesses in the existing APIM portal and writing an SDM document (Structural Decision Making)- Implementation of an Angular portal with Quarkus backend for RBAC and efficient API management- Development of frontend and backend, used throughout the banking environmentMicroservices & Automation- Creation of various microservices and automation solutions with Python, Quarkus (native) and Angular- Expanding security by integrating IDP into Angular applicationsB2B File Transfer Solution- Conception and implementation of a web application for automated B2B file transfer with external partners
- Credit SuisseFull Stack EngineerApril 2019 - October 2020 (1 year and 6 months)Application Development & Integration- Development and integration of web applications into existing core systems to enable precise investment proposals for customers and relationship managers- Use of Angular, AngularJS, Spring Boot and Guice for robust, responsive featuresTeamwork & Agile Methods- Collaboration in an agile sprint team (five developers), timely implementation of new functions and bug fixes- Active participation in all relevant agile ceremonies for continuous improvement of collaborationData Aggregation & Visualization- Implementation of solutions for consolidating various data sources and providing comprehensive portfolio information- Development of new data visualizations to support informed decisions and optimized customer adviceProblem Solving & Debugging- Analysis and resolution of IoC (Inversion of Control) problems- Efficient debugging of complex error patterns to ensure stability and performanceFrontend Development- Improving the user experience by optimizing and expanding AngularJS components- Ensuring intuitive operation and high responsiveness of the interface
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Education
- Master of Science in Cyber SecurityFaculty of Cybernetics2018Master - Cybersecurity
- Bachelor: Statistics and Economic ForecastFaculty of Cybernetics2013Bachelor: Statistics and Economic Forecast