David Brutian
Consultant, Solution Architect (Hands-On)
Experience
Consultant, Solution Architect (Hands-On)
Medium-sized company in the services and healthcare industry
- Designed and developed a retrieval-augmented generation (RAG) solution for the 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 specialty software for the public sector
- Architecture consulting including network analysis and software architecture according to iSAQB standard
- Analysis of customer requirements and coordination with product and requirements management
- Creating architecture concepts for a modern cloud-native application considering agile guidelines
- Analysis and evaluation of change requests
- Close collaboration with external technology vendors and technology selection
- Contributing 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
- Building and maintaining the architecture of a highly available and 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
- Establishing processes and tools for load and performance testing of a global e-commerce platform
- Analyzing existing solutions and workflows
- Selecting and setting up the technology stack including technical infrastructure
- Supporting and advising teams in implementing product-specific solutions
- Consulting and coordinating the planning and execution of load tests
- Technologies: Google Cloud Platform, various open-source tools
Solution Architect (Hands-On)
International trading company
- Extending the e-commerce platform with a marketplace architecture
- Technical integration and connection of multiple third-party products
- Designing and implementing integration interfaces
- Modeling and implementing 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
- New development and operation of a global eCommerce platform on Google Cloud Platform and Cloudflare
- Design and maintenance of the architecture for highly available and high-performance webshops and backend systems
- Design and build the backend of the cloud-based infrastructure
- Step-by-step migration from the old platform to the new one
- Establishment of DevOps/DevSecOps processes in the teams
- Support of the development teams with architecture decisions and implementation
- Design and setup of test and monitoring environments for the platform and components
- Conducting PoCs and evaluating new technologies
- Definition of coding guidelines and standards
- Coaching of 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 with focus on IT security and high-security IT for the public sector
- Development of a registration system
- Creation of technical requirements based on epics and user stories
- Implementation of 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 nationwide online banking application
- Responsibility for designing the system architecture and migrating to new frameworks
- Leading the analysis, preparation, and execution of product migration
- Creation of technical requirements based on epics and user stories
- Support and coaching of the project team and consulting during cross-team backlog refinements
- Until mid 2013 as a specialist developer: Implementation according to business and IT concepts, updating technical design documents, point of contact for maintenance and support, error analysis, test execution, and interaction 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 nationwide information portal for bankers
- Creation of the functional concept in coordination with the business department
- Creation of technical designs
- Development and maintenance of 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 nationwide bank workplace application
- Development of the module for managing and maintaining card products (debit cards, customer cards, savings cards, credit cards)
- Creation of load test drivers and integration into the load test infrastructure
- Coaching of the project team
- Technologies: Java/JEE, JBF, JUnit, UML, DB2, Eclipse, Ant, Tomcat, Subversion, IBM RSA
Sole Contractor
Client in the event management industry
- Concept and implementation of an event management application
- Modeling and design of the relational database
- Development and production deployment
- Data analysis and migration from the legacy application
- Training of 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
- Concept and implementation of several backend and frontend components to expand the product range and optimize complex business processes
- Development of a web-based application for managing and monitoring over 200 processes
- Concept and development of a scheduler component for automated process monitoring
- Concept and development of various frameworks to model complex business case processes
- Modeling and design of 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 Of Modern Software Solutions. Deep Domain-driven Design, Cloud-native Architectures (Gcp, Aws, Azure) With Technical Know-how Combined With A Strategic And Holistic View. Ai & Data Science: Generative Ai, Machine Learning, Prompt Engineering, Data Analysis And Modeling Of 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 & Services: Enterprise Architect · Solution Architect · Tech Lead · Software Engineer · Technical Product Owner (Tpo)
Industry Experience: E-commerce · It Security / High Security · 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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