Tezcan Dilshener
Solution Architect / Project Manager
Experience
Jul 2024 - Dec 2025
6 months Germany
Solution Architect / Project Manager
Deutscher Fußball-Bund (DFB)
- The DFB launched a strategic infrastructure change to migrate its JFrog Artifactory repository from an outdated on-premises setup to a cloud-based SaaS instance. This migration was part of a broader DevOps modernization strategy to improve scalability, maintenance, and CI/CD pipeline integration.
- Under tight deadlines and with many dependencies, the project required precise coordination between business, technical, and security teams to ensure continuity, compliance, and effective knowledge transfer.
- A key focus was researching and selecting security tools like Software Composition Analysis (SCA) and Static Application Security Testing (SAST) for daily operations.
- Project responsibility: end-to-end ownership of the project life cycle—from scope definition to completion—aligned with the organization’s strategic goals.
- Stakeholder coordination: close collaboration with platform teams, IT leaders, and external vendors to plan and execute a seamless migration.
- Agile delivery: applied SAFe principles and structured sprint work for incremental value delivery.
- Created a full migration roadmap with clear milestones (execution & control).
- Monitored the entire lifecycle: onboarding, repository migration, permission replication, and system testing (execution & control).
- Visualized the architecture (PlantUML, Gliffy) and documented details in Confluence (execution & control).
- Regular status reports and blocker communication at the leadership level (reporting & communication).
- Delivered complete post-migration documentation and led knowledge transfer sessions (reporting & communication).
- Results & impact: successful, on-time, on-budget migration of the DFB’s JFrog Artifactory without service interruptions.
- Results & impact: improved system reliability, performance, and scalability by switching to a SaaS solution.
- Results & impact: optimized DevOps workflows and developer experience by integrating the new Artifactory into GitLab pipelines.
- Results & impact: positive stakeholder feedback for clear communication, goal focus, and professional project execution.
- Results & impact: continuous security scans with integrated JFrog SCA and SAST tools, boosting code quality and risk reduction.
- My role: I combined strategic delivery management with technical implementation skills to enable a sensitive DevOps migration, giving the DFB development teams more speed, security, and resilience.
- Technology stack: JFrog Artifactory (On-prem & SaaS), GitLab, Jira, Confluence, PlantUML, Gliffy, SAFe, SCRUM, Software Composition Analysis (SCA), Static Application Security Testing (SAST).
Feb 2023 - Present
2 years 6 months Germany
Solution Architect / Project Manager
Telefónica Germany
- Telefónica Germany kicked off a strategic modernization initiative focused on:
- Security measures after an audit to address critical vulnerabilities in hardening, encryption, and disaster recovery.
- Migrating core PPIT systems from on-prem to cloud for better scalability and resilience.
- Modernizing the point-of-sale system with requirements for high availability and robust architecture.
- Each project had strict compliance, performance, and cross-departmental demands under tight schedules and top-management oversight.
- Project 1 (Implementing security controls after audit): translated audit findings into structured user stories and domain-specific action plans.
- Project 1: led cross-departmental implementation of technical and organizational controls.
- Project 1: implemented GDPR-compliant data deletion, system hardening, and fixed encryption and monitoring gaps.
- Project 1: ensured business continuity (BCP) and disaster recovery (DR) per corporate standards.
- Project 1: tracked actions with Jira/Confluence for management visibility and audit traceability.
- Project 2 (Cloud migration of prepaid IT systems): defined and managed migration of PPIT systems to cloud and new data center infrastructures.
- Project 2: coordinated with stakeholders and vendors for architecture validation and technical alignment.
- Project 2: ensured compliance using Nessus and Kiuwan for vulnerability scanning, reporting, and remediation.
- Project 2: assessed and minimized risk while maintaining service continuity and system performance.
- Project 3 (Upgrade & cloud move of e-commerce system): end-to-end management of redeveloping and migrating a high-availability, customer-focused retail application.
- Project 3: enabled smooth product search, checkout, and purchase processes for store staff across locations.
- Project 3: identified and closed architectural and organizational gaps within internal teams and vendors.
- Project 3: established robust sprint planning, transparent reporting, and cross-functional collaboration using agile methods and tools.
- Results & impact: audit findings resolved on time, achieving compliance with security standards.
- Results & impact: hardened infrastructure, improved encryption standards, and validated BCP/DR readiness.
- Results & impact: PPIT migration completed without service interruptions, creating a more agile and resilient infrastructure.
- Results & impact: modernized e-commerce system significantly improved retail processes and customer experience.
- Results & impact: earned management and stakeholder trust through clear communication, documentation, and proactive risk management.
- My role: I served as the strategic and operational link between cloud engineering, quality assurance, security, and leadership—ensuring Telefónica’s critical platforms were migrated securely and smoothly.
- Technology stack: AWS, Azure, Citrix, Solaris, Jira, Confluence, MS Project, PlantUML, Tableau, Salesforce, Remedy, Nessus, Kiuwan, DBMS (various), Security frameworks (CIS/NIST), SCRUM.
Jan 2021 - Dec 2025
3 years Germany
Senior Cloud Solution Architect
ING Bank (Germany)
- As part of a strategic modernization initiative, ING Germany planned to migrate many distributed third-party applications from outdated on-prem systems to a secure, scalable private cloud (PaaS).
- This migration required strict adherence to non-functional requirements (NFRs), fine-tuned network segmentation, and full alignment with internal governance policies.
- The project involved close coordination with the Enterprise Cloud Governance Framework, TOGAF architecture reviews, necessary approvals, and standardization of infrastructure patterns to support internal teams across various domains.
- Architecture design: defined cloud infrastructure building blocks for typical distributed applications—internal, DMZ, and internet deployments.
- High-level planning: created detailed network design docs for load balancing, security, DevOps pipelines, logging, and high-availability models (active-active, hot/cold standby).
- High-level planning: documented architecture blueprints using TOGAF principles in Confluence and PlantUML/draw.io.
- Network segmentation strategy: helped multiple application teams define network zones, traffic flows, firewall rules, and segmentation logic in line with ING’s cloud security model.
- Network segmentation strategy: ensured adherence to zero-trust architecture principles and security design guidelines.
- Team enablement & advisory: served as a technical advisor for internal application teams migrating to the cloud.
- Team enablement & advisory: created practical solutions to translate cloud platform features into concrete delivery strategies.
- Governance & architecture review: presented solutions to the TOGAF Governance Committee, obtained approvals, and turned designs into reusable reference architectures.
- Governance & architecture review: ensured compliance with internal cloud standards, integrating into DevOps pipelines, monitoring, and deployment processes.
- Results & impact: successfully migrated multiple third-party applications to ING’s private cloud.
- Results & impact: developed reusable reference architectures that standardized migrations and shortened project timelines.
- Results & impact: accelerated go-live approvals through targeted support in the ARM/AB governance process.
- Results & impact: increased scalability, availability, and cost efficiency for cloud workloads.
- Results & impact: strengthened governance and internal knowledge transfer through structured architecture documentation and committee involvement.
- My role: I combined technical architecture leadership with strategic standardization, helping ING build a scalable, secure, and consistent cloud platform.
- Tech stack: IPC, Azure, Boards, Jira, Confluence, Oracle, MS SQL, NGINX, DBaaS, IMaaS, CI/CD, TOGAF, draw.io.
Jan 2020 - May 2022
1 year 5 months Stuttgart, Germany
JEE Senior Solution Architect / Team Lead
Volkswagen
- Extended online shop (PIM) applications with cloud architecture solutions.
- Analyzed and developed concepts for often loosely defined order management requirements.
- Gathered requirements for running IT applications in the cloud.
- Optimized processes of existing systems and the entire order-to-cash flow (fulfillment to reconciliation).
- Coordinated the cloud migration architecture design with the TOGAF Architecture Guild Group.
- Modeled data and mapped data across interfaces at the database level using TOGAF.
- Worked closely with the product owner to align priorities and scope with the Architecture Guild.
- Advised developers on technical issues at an expert level, even beyond the usual scope.
- Technologies: Jira, Confluence, SAFe, Eclipse, JEE, Microservices, Spring, Oracle DB, CI/CD, AWS, PlantUML, Gliffy, Docker.
Jul 2020 - Dec 2020
6 months Munich, Germany
IT Service Manager / Project Team Lead / Coordinator / Systems Engineer
BMW Group
- Managed daily operations of the Atlassian tool chain (Bitbucket, Confluence, Jira, Crowd) for the Atlassian tools department.
- Monitored on-prem and cloud ATC tools (e.g., AWS setup and troubleshooting).
- Handled ITSM incident management (ensuring KPIs/SLAs and user satisfaction) via ServiceNow.
- Performed daily Jira and Confluence admin tasks to maintain ATC tools.
- Documented processes and followed up with third parties like Atlassian Premier Support.
- Coordinated with customers, met sprint deadlines, and delivered requirements.
- Provided technical leadership for the Polish offshore development team.
- Technologies: Jira, Confluence, SCRUM, AWS, Linux, Bitbucket, Docker, Pipelines, Remedy, ITIL, Crowd, Postman, SoapUI, ITSM.
Jan 2019 - Jun 2020
1 year 6 months Munich, Germany
JEE Senior Architect / Team Lead / Coordinator
Huawei
- Advanced an application in the Cyber Security and Protection Laboratories (CSPL) that implements Identity Access Management (IAM) using Attribute Based Access Control (ABAC) for IoT smart homes.
- As Cloud Data Security Consultant, led and delivered applications using cutting-edge innovations.
- Improved the security engineering process and security-by-design approach.
- Worked with design and product teams to bring innovations into new products.
- Developed a dynamic authorization service based on Balana (XACML V3.0) with continuous monitoring and audit reporting.
- Implemented, configured, maintained, and extended a content protection app with video streaming, light sensors, cameras, cloud storage servers, and AI software for face and object recognition, in addition to the dynamic authorization service.
- Set up, implemented, configured, maintained, and integrated components of the authorization software to manage administrator access.
- Deployed and managed development, test, and demo environments.
- Trained and mentored product-line engineers on these technologies.
- Led offshore development teams in Italy, Israel, and China.
- Technologies: Jira, Confluence, SCRUM, Eclipse, REST, WebServices, Swagger, JPA, JUnit, Spring Boot, Wiremock, BDD, CI/CD, H2, AWS, Mockito, Jenkins, Sonar, Clean Code, Maven, Gradle, Android, Linux, Bitbucket, GitHub, Docker, Pipelines.
Nov 2017 - Oct 2019
2 years Munich, Germany
JEE Senior Architect / Team Lead
Telefónica
- Further developed a custom prepaid IT application.
Sep 2016 - Nov 2017
1 year 3 months Munich, Germany
JEE Architect / Project Team Lead
T-Systems
- Enhanced a custom used-car sales management application for Mercedes.
Jul 2014 - Aug 2016
2 years 2 months Munich, Germany
JEE Senior Developer / Architect
TNG
- At Telefónica/O2, enhanced a tailored application that powers O2’s customer relations management features.
Nov 2013 - Jun 2014
8 months Munich, Germany
JEE Senior Developer / Architect
UniCredit
- Implemented the German Federal Court of Justice requirement to convert an existing checking account into a protected garnishment account.
Jan 2013 - Mar 2014
1 year 3 months Munich, Germany
JEE Senior Developer / Architect
Siemens
- Redesigned and further developed the GPM application.
Nov 2011 - Dec 2013
1 year 2 months Munich, Germany
JEE Senior Developer
Deutsche Pfandbriefbank
- Enhanced a software platform that migrates business data from HOST systems to SAP.
May 2011 - Oct 2011
6 months Munich, Germany
JEE Senior Developer
Loyalty Partners
- Built a platform to roll out customer loyalty and bonus programs in new international markets.
May 2007 - Apr 2011
4 years Munich, Germany
JEE Senior Developer
HVB-Unicredit
- Ensured production support and implemented the projects listed below.
Feb 2007 - May 2007
4 months Munich, Germany
JEE Developer
KVB Versicherung
- Developed an online billing portal to receive invoices, store them in a central database, and automate all validation and correction steps.
Oct 2004 - Feb 2007
2 years 5 months Munich, Germany
JEE Developer
BayernLB Bank
- Developed an early warning system for problem loans.
Nov 2003 - Oct 2004
1 year Munich, Germany
JEE Developer
Siemens Logistik
- Enhanced an export and import list management application.
Aug 2003 - Dec 2004
5 months Munich, Germany
JEE Developer
HP/Compaq
- Implemented a central campaign management system.
Feb 2003 - Aug 2003
7 months Munich, Germany
JEE Developer
ComTelko Telekommunikation
- Developed a web-based e-commerce revenue reporting system.
Aug 2002 - Dec 2003
5 months Munich, Germany
JEE Developer
BayernLB Bank
- Led an IBM WebSphere and WSAD migration project.
Jan 2002 - Jul 2002
7 months Munich, Germany
JEE Developer
RemoteHotels
- Built a controller/filter framework for asynchronous XML message validation and dispatch.
Jan 2001 - Dec 2003
2 years Munich, Germany
JEE Developer
MAN Nutzfahrzeuge
- Developed a web-based maintenance and planning application.
Nov 1999 - Dec 2000
1 year 2 months Munich, Germany
JEE Developer
SATZ Systemhaus
- Created a web-based job search, selection, application, and registration app.
Summary
I combine technical architecture expertise (AWS, DDD, API integration) with strong communication skills and strategic thinking. Whether moderating across departments, integrating new partner solutions, or reducing technical complexity sustainably, I design architectures that are scalable, secure, and future-ready.
Languages
English
Native
German
Advanced
Turkish
Intermediate
Education
Oct 2010 - Jun 2017
The Open University
Philosophy of Doctorate · Software Evolution and Maintenance · Milton Keynes, United Kingdom
Oct 1991 - Jun 1997
City University
Master of Science · Business Systems, Analysis and Design · London, United Kingdom
Oct 1988 - Jun 1989
Southbank University
Honours Degree · Computer Science · London, United Kingdom
Certifications & licenses
AWS Certified Cloud Practitioner – Course Completion
AWS Cloud Solution Architect – 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 like NLP etc.
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