Tezcan Dilshener
Solution Architect / Project Manager
Experience
Solution Architect / Project Manager
Deutscher Fußball-Bund
- Overall responsibility for the project lifecycle from scope definition to closure
- Close collaboration with platform teams, IT leaders, and external vendors
- Applying SAFe principles and structured sprint work
- Creating a migration roadmap with clear milestones
- Monitoring the lifecycle: onboarding, repository migration, permission replication, and system testing
- Visualizing architecture with PlantUML and Gliffy and documenting in Confluence
- Regular status reports and conducting knowledge transfer sessions
Senior Cloud Solution Architect
ING Bank
- Designing cloud infrastructure components for distributed applications in internal, DMZ, and internet-based deployments
- Creating comprehensive network design documents for load balancing, security, DevOps pipelines, logging, and high availability models
- Documenting architecture blueprints based on TOGAF principles in Confluence and PlantUML/draw.io
- Defining network segmentation strategies including firewall rules and zero-trust principles
- Technical consulting for internal application teams and developing practical delivery strategies
- Presenting solution concepts to the TOGAF Governance Committee and converting them into reusable reference architectures
- Successfully migrating multiple third-party applications to the private cloud using standardized reference architectures and accelerated go-live approvals
Solution Architect / Project Manager
Telefónica Germany
Translating audit findings into structured user stories and domain-specific action plans
Leading cross-functional implementation of technical and organizational controls
Implementing GDPR-compliant data deletion, hardening, and fixing encryption and monitoring gaps
Ensuring business continuity (BCP) and disaster recovery (DR) according to corporate standards
Identifying and evaluating AI-relevant use cases as part of the digital transformation strategy through stakeholder interviews
Tracking actions in Jira/Confluence with management visibility
Defining and steering the migration of core prepaid IT systems to cloud and data center infrastructures
Coordinating with stakeholders and vendors for architectural validation and technical alignment
Securing compliance using Nessus and Kiuwan for vulnerability analysis and remediation
Setting up an AI trend radar including analysis of LLMs, Azure OpenAI Services, LangChain integrations, and Hugging Face components
Overall management of the redevelopment and migration of a high-availability retail application
Establishing agile methods with solid sprint planning and cross-functional collaboration
Senior Cloud Solution Architect
ING Bank
- Designing cloud infrastructure components for distributed applications in internal, DMZ, and internet-based deployments
- Creating comprehensive network design documents for load balancing, security, DevOps pipelines, logging, and high availability models
- Documenting architecture blueprints based on TOGAF principles in Confluence and PlantUML/draw.io
- Defining network segmentation strategies including firewall rules and zero-trust principles
- Technical consulting for internal application teams and developing practical delivery strategies
- Presenting solution concepts to the TOGAF Governance Committee and converting them into reusable reference architectures
- Successfully migrating multiple third-party applications to the private cloud using standardized reference architectures and accelerated go-live approvals
JEE Senior Solution Architect / Team Lead
Volkswagen
- Analyzing and developing concepts for loosely defined requirements in order management
- Identifying adaptation needs for the cloud operation of IT applications
- Optimizing processes from fulfillment to reconciliation (O2C)
- Coordinating the cloud migration architecture design with the TOGAF Architecture Guild Group
- Data modeling and interface mapping at the database level using TOGAF
- Aligning with the product owner on prioritization and scope definition
- Advising developers at an expert level
IT Service Manager / Project Team Lead / Coordinator / Systems Engineer
BMW Group
- Responsible for the day-to-day operations of the Atlassian toolchain (Bitbucket, Confluence, Jira, Crowd)
- Monitoring of on-prem and cloud ATC tools including AWS configuration and troubleshooting
- ITSM incident management with ServiceNow to ensure KPIs, SLAs, and user satisfaction
- Jira and Confluence administration to provide ATC tools
- Process documentation and follow-up with Atlassian Premier Support
- Coordination with clients to meet sprints and requirements
- Technical lead for the Polish offshore development team
JEE Senior Architect / Team Lead / Coordinator
Huawei
- Led the further development of an ABAC-based IAM solution for IoT SmartHomes
- Improved security-by-design processes and security engineering
- Developed a dynamic authorization service using XACML V3.0 with continuous monitoring
- Implemented a content protection application with video streaming, light sensors, and AI-based object detection
- Set up and managed development, test, and demo environments
- Mentored and trained product line engineers during technology adoptions
- Led offshore development teams in Italy, Israel, and China
JEE Senior Architect / Team Lead
Telefónica
- Enhanced a custom prepaid IT application
JEE Architect / Project Team Lead
T-Systems
- Enhanced an application for managing used car sales for Mercedes
JEE Senior Developer / Architect
TNG at Telefónica/O2
- Enhanced a CRM application for O2 customers
JEE Senior Developer / Architect
UniCredit
- Implementation of the BGH requirement to convert current accounts into garnishment protection accounts
JEE Senior Developer / Architect
Siemens
- Redesign and further development of the GPM application
JEE Senior Developer
Deutsche Pfandbrief Bank
- Further development of a platform for migrating business data from HOST to SAP systems
JEE Senior Developer
Loyalty Partners
- Development of a platform for international loyalty and bonus programs
JEE Senior Developer
HVB-Unicredit
- Production support, maintenance, and implementation of various Java projects
JEE Developer
KVB Versicherung
- Development of an online billing portal with automated validation and correction steps
JEE Developer
BayernLB Bank
- Development of an early warning system for problem loans
JEE Developer
Siemens Logistik
- Further development of an export and import list management application
JEE Developer
HP/Compaq
- Implementation of a central campaign management system
JEE Developer
ComTelko
- Development of a web-based eCommerce revenue reporting system
JEE Developer
BayernLB Bank
- Migration to IBM WebSphere and WSAD
JEE Developer
RemoteHotels
- Development of a controller/filter framework for validation and dispatch mechanisms
JEE Developer
MAN Nutzfahrzeuge
- Development of a web-based maintenance and planning application
JEE Developer
SATZ Systemhaus
- Development of a web-based application for job search, selection, application, and registration
Summary
Enterprise Cloud & AI Solution Architect with over 20 years of experience leading complex digital transformations in telecommunications and finance. Proven expertise in designing scalable, secure, and standards-compliant architectures on private and public cloud platforms. Hands-on experience with integrating generative AI, cloud migrations, compliance, and developing reference architectures. Skilled at aligning technical implementation with governance models, stakeholder requirements, and the ever-evolving AI/ML landscape.
Skills
It Experience: Since 1999
Positions: Project Management, Architect, Software Specialist
Industry Expertise: Insurance, Finance, Banking, Automotive, Telecommunications, Logistics, It, Government
Development Of Scalable Ai/ml Systems And Architectures And Leading Complex Cloud Architectures At Telefónica, Dfb & Ing – Including Security Concepts, Scalability, And Performance Optimization
Generative Ai: Llms, Rag, Vector Databases, Fine-tuning; Hands-on Experience With Modern Genai Stacks: Integration Of Vector Search, Ci/cd-driven Prompt Engineering, And Security Audits
Cloud-native Architectures (Aws, Azure, Gcp) – Proven Deep Expertise With Aws & Azure In Production Migrations And Architecture Projects (E.g., Telefónica, Ing, Bmw)
Ai & Dataops Tooling: Mlops, Langchain, Llamaindex, Ray – Applying Devops/mlops Principles With Gitlab, Pipelines, Jira, Nessus, Kiuwan, And Securely Integrating Analytics & Security Tools
Data Privacy, It Security, Ethics In Ai Projects – Implementing Gdpr-compliant Architectures And Security Compliance (Cis, Nist) In Cloud Migrations & Security-related Projects
Interdisciplinary Teamwork (It, Research, Production) – Many Years Of Leading Multinational Teams (E.g., China, Israel, Poland) And Bridging It, Business & Research
Technology Scouting & Trend Assessment – Ongoing Learning & Research: Phd In Software Development, Teaching Digital Business & Cloud Innovation, And Tech Consulting
Llm Integration & Rag Systems: Architecture Of Distributed Systems With Vector Search (E.g., Lucene, Faiss), Retrieval-augmented Generation, Model Wrapping & Evaluation
Generative Ai Platforms: Experience With Leading Tools & Providers (Openai, Aws, Azure, Etc.)
Ai/ml Architecture: Design & Implementation Of End-to-end Ai Systems In Production Multi-cloud Environments Including Devsecops Integration
Cloud & Devops: Solid Cloud Architecture Expertise (Aws/otc/ipc), Ci/cd Pipelines, Observability & Governance Frameworks
Mlops & Ai Toolchains: Integration Of Mlops Tools Like Langchain, Llamaindex, Ray, Gitlab Pipelines, Jfrog, Artifactory, Sast/sca Tools
Data Ethics & Security: Establishing Security Standards, Audit Processes, And Ethical Guidelines For Ai Projects
Research & Innovation: Actively Shaping New Ai Solutions, Participating In Research Projects, And Teaching Ai & Strategy
Frameworks: Soap, Rest, Swagger – Web Services; Hibernate – Persistence Framework; Spring Boot – Spring Framework; Thymeleaf – Ui Model View Controller Framework; Lucene – Vector Search Model Api; Openapi, Embeddings, Llm, Rag Concepts; Junit, Jgiven – Test Frameworks; Huggingface, Pytorch, Bert – Ai Frameworks; Arc42 – Documentation Framework
Programming Languages: Java – Jee, Python3, Cobol, Rpg
Operating Systems: Windows, Linux, Macos, Ibm As/400 & Os/390
Methodology: Scrum, Safe, Extreme Programming; Tdd / Bdd – Test/behaviour Driven Development; Itil / Itsm – Service Management; Archimate – Enterprise Modelling Foundation
Products: Atlassian Jira And Confluence – Lifecycle; Docker, Vmware – Containerisation Engines; Otc – Open Telekom Cloud; Aws – Ebs / Ecs – Elastic Beanstalk / Container; Ing Private Cloud; Eclipse, Android Studio, Visual Studio Code – Ides; Weblogic, Ibm Websphere – Application Servers; Plantuml, Draw.io – Uml Tools; Soapui, Postman – Web Services Test Tools; Sonarqube, Nessus, Kiuwan – Quality/security
Messaging / Bus Systems: Event-driven (Sqs, Sns); Kafka, Ibm Mq
Versioning: Bitbucket, Gitlab – Version Control Systems; Maven, Gradle – Build Management Tools; Ci/cd – Continuous Integration / Deployment
Databases: Qdrant, Lucene Vectordb, Oracle, Ibm Db2, Hsqldb, Apache Derby
Languages
Education
The Open University
Doctor of Philosophy (PhD) in Software Evolution and Maintenance · Software Evolution and Maintenance · Milton Keynes, United Kingdom
City University
Master of Science in Business Systems, Analysis and Design · Business Systems, Analysis and Design · London, United Kingdom
Southbank University
Graduate Diploma Honours Degree in Computer Science · Computer Science · London, United Kingdom
Certifications & licenses
AWS Certified Cloud Practitioner – Course Completion
AWS Cloud Solution Architect – Course Completion
ArchiMate Enterprise Architecture Modelling Framework – Course Completion
Azure Architect Design – Course Completion
Azure Cloud Architecture Technologies – Course Completion
Private Pilot Certificate – (Single Engine Land)
Certified Master Coach: motivation and solution-oriented techniques
Similar Freelancers
Discover other experts with similar qualifications and experience
Solution Manager for PoC investigation and replacement and refinement of an existing cloud and IoT power plant control system
Architecture Consultant (Freelance)
AR/VR/XR Architect
Vice President Technology
Subproject Manager and Solution Architect - Microsoft 365 Transformation
Cloud (AWS) | AI | DevOps | Data
Solution Architect / Senior Manager – DTC E-Commerce Platform
Software Architect
Freelancer, Solution Architect
Azure Solution Architect
Enterprise Architecture
MLOps (machine learning operations)
Interim CTO
Senior Software Architect
Lead Project Manager
Embedded Fullstack Developer
Cloud Architect & DevOps, Head of Architecture
Co-Founder & CTO
Cloud-Architect, Senior Solution Architect, Senior Software-Engineer
Senior MLOps, DevOps Engineer
Lead Developer
Senior DevOps Consultant (Freelance)
IT Consultant & Continuing Education
ERP Program Manager
General ERP and AI Consulting
Software Developer
Technical Product Owner
Fractional CTO (Principal Engineer / Technical Architect)
Interim CTO
