David Brutian - Consultant, Solution Architect (Hands-On)
Experience
Consultant, Solution Architect (Hands-On)
Mid-sized company in the service and healthcare industry
- Design and development of a retrieval-augmented generation (RAG) solution for structured and simplified creation of business-critical correspondence
- Technologies: OpenAI API, Python 3.8, sentence-transformers, tiktoken, ChromaDB, Flask
Solution Architect / System Architect
Global market leader in complex cloud-native specialized software for the public sector
- Architecture consulting including network analysis and software architecture based on iSAQB standards
- Analysis of customer requirements and coordination with product and requirements management
- Creation of architecture concepts for a modern cloud-native application following agile guidelines
- Analysis and evaluation of change requests
- Close collaboration with external technology vendors and technology selection
- Contribution to the strategic direction of the system architecture
- Technologies/standards: Java, Python, Docker, virtualization, Kerberos, OpenLDAP, OpenSearch, Keycloak, HashiCorp Vault, Apache Kafka, relational and object-oriented databases
- Collaboration according to SAFe (Scaled Agile Framework)
Solution Architect (Hands-On)
International trading company
- Set up and maintain the architecture of a high-availability, high-performance global webshop and various backend systems
- Technologies: Google Cloud Platform, Java 8/Java 11, Spring Boot, PostgreSQL, Node.js, TypeScript
- Load testing with Scala, Gatling, JMeter
- Frontend with React and GraphQL/Apollo
Consultant, Solution Architect (Hands-On)
International trading company
- Established processes and tools for load and performance testing of a global e-commerce platform
- Analysis of existing solutions and workflows
- Selection and setup of the technology stack including technical infrastructure
- Supported and advised teams in implementing product-specific solutions
- Consulting and coordination in planning and executing load tests
- Technologies: Google Cloud Platform, various open-source tools
Solution Architect (Hands-On)
International trading company
- Extended the e-commerce platform with a marketplace architecture
- Technical integration and connection of multiple third-party products
- Design and implementation of integration interfaces
- Modeling and implementation of cross-product business processes
- Technologies: Google Cloud Platform, microservices, API-first approach, Java/Spring Boot, Node.js/TypeScript/NestJS, OpenAPI, MongoDB
Solution Architect (Hands-On), Tech Lead
Internationally operating trading company
- Developing and operating a global eCommerce platform on Google Cloud Platform and Cloudflare
- Building and maintaining the architecture for highly available and high-performance web shops and backend systems
- Designing and building the backend of the cloud-based infrastructure
- Gradual migration from the old to the new platform
- Establishing DevOps/DevSecOps processes in the teams
- Supporting development teams in architecture decisions and implementation
- Designing and implementing test and monitoring environments for the platform and components
- Conducting PoCs and testing new technologies
- Defining coding guidelines and standards
- Coaching the teams
- Technologies: Microservices, Domain Driven Design, REST, API design, OpenAPI, Swagger/SwaggerHub, Apigee, Java 8/Java 11, Spring Framework, Spring MVC, Spring Boot, PostgreSQL, NoSQL products, React
- Collaboration: Scrum, Kanban, Jira, Confluence
Senior Software Developer (Full-Stack)
IT service provider specializing in IT security and high-security solutions for the public sector
- Developing a registration system
- Creating technical requirements based on Epics and User Stories
- Implementing project requirements in an agile team
- Code reviews and documentation
- Technologies and methods: Java 8, Spring Framework, Spring MVC, Spring Security, ORM/JPA/Hibernate, Java Servlet, JSP/JSTL, RESTful web services, JavaScript, jQuery, Tomcat, Bootstrap, web security/OWASP, PostgreSQL, HSQLDB, Kerberos, LDAP, test-driven development, acceptance test-driven development, JUnit, Hamcrest, FitNesse, Scrum, JIRA, Linux (Ubuntu), IntelliJ IDEA, Git, Maven, Jenkins, Sonar
Architect and Technical Product Owner (cross-functional agile teams)
IT service provider for Volks- und Raiffeisen banks
- Further development of the group-wide online banking application
- Responsibility for system architecture design and migration to new frameworks
- Leading analysis, preparation and implementation of product migration
- Creating technical requirements based on Epics and User Stories
- Supporting and coaching the project team and consulting on cross-team backlog refinements
- Until mid-2013 as a specialist developer: implementing according to business and IT concepts, extending technical design documents, contact person for maintenance and support, error analysis, test execution and coordination with the business department
- Technologies: Java 7/Java 8, Spring Framework, Spring MVC, Spring Security, Vaadin, JBF, RBF, Eclipse, IBM RSA, Tomcat, JUnit, Gradle, Maven, Ant, JavaScript/jQuery, Scrum, JIRA
Senior Software Developer, Architect, Business Analyst
IT service provider for Volks- und Raiffeisen banks
- Further development and maintenance of the group-wide information portal for bankers
- Creating the functional concept in coordination with the business department
- Creating technical designs
- Developing and maintaining the application
- Technologies: Java/JEE/JSP, Wicket, Spring Framework, Hibernate, JavaScript (YUI, jQuery), IBM WebSphere Application Server, WebSphere Portal Server 6.1, JUnit, Mockito, DB2, Eclipse, Maven, Subversion, IBM RSA, Scrum
Senior Software Developer, Usability Lead
IT service provider for Volks- und Raiffeisen banks
- Further development and maintenance of the group-wide banking workplace application
- Developing the module for managing and maintaining card products (debit cards, customer cards, savings cards, credit cards)
- Creating load test drivers and integrating them into the load test infrastructure
- Coaching the project team
- Technologies: Java/JEE, JBF, JUnit, UML, DB2, Eclipse, Ant, Tomcat, Subversion, IBM RSA
Sole contractor
Client in the events industry
- Designed and implemented an application for event management
- Modeled and designed the relational database
- Developed and deployed to production
- Analyzed and migrated data from the legacy application
- Trained client staff
- Technologies: Java, JSP, JavaServer Faces 1.2 (MyFaces), Hibernate, MySQL, Eclipse, Ant, Subversion, Apache HTTP Server, Tomcat
Senior Software Developer, Architect
Online retailer in the book and media sector
- Designed and implemented multiple backend and frontend components to expand the product range and optimize complex business processes
- Developed a web-based application to manage and monitor over 200 processes
- Designed and developed a scheduler component for automated process monitoring
- Designed and developed various frameworks to model complex business process flows
- Modeled and designed multiple complex databases
- Technologies: Java, JSP, JavaServer Faces 1.2 (MyFaces), Hibernate, Oracle 10g, PL/SQL, Oracle SQL Developer, Apache HTTP Server, Tomcat, Ant, Eclipse, UML, Bash, Linux, Subversion, Embarcadero ER/Studio
Industry Experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Retail, Banking and Finance, and Tourism.
Business Area Experience
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Experienced in Information Technology, Product Development, and Quality Assurance.
Skills
Technology-driven Architect And Developer With Over 25 Years Of Experience In Architecture & Strategy: Microservices, Domain Design, Implementation, And Scaling Modern Software Solutions. Deep Domain-driven Design And Cloud-native Architectures (Gcp, Aws, Azure) With Technical Insight Combined With A Strategic And Pragmatic View · Ai & Data Science: Generative Ai, Pragmatic Big-picture Perspective In Search Of Viable Solutions For Machine Learning, Prompt Engineering, Data Analysis, And Modeling Complex Business Requirements · Development: Java, Python, Typescript · Devops & Infrastructure: Ci/cd, Docker, Kubernetes, Terraform · Data & Integration: Rest, Graphql, Kafka, Elasticsearch, Opensearch, Postgresql, Mongodb · Agile & Communication: Scrum, Kanban, Technical Consulting, Stakeholder Management
Roles & Deliverables: Enterprise Architect · Solution Architect · Tech Lead · Software Engineer · Technical Product Owner (Tpo)
Industry Experience: E-commerce · It Security / High-security It · Public Sector · Banking / Finance · Insurance
Languages
Education
Technical University of Munich
Diploma in Computer Science · Computer Science · Munich, Germany
Certifications & licenses
Google Cloud Certified Professional Cloud Architect
Google Cloud
Harvard CS50's Introduction to Artificial Intelligence with Python (verified)
Harvard
Isaqb® Certified Professional For Software Architecture Advanced Level (Cpsa-A)
Isaqb®
Isaqb® Certified Professional For Software Architecture Foundation Level (Cpsa-F)
Isaqb®
Oracle Certified Associate, Java Se 8 Programmer
Oracle
Oracle Certified Professional, Java Se 8 Programmer
Oracle
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