Hi, I'm Berkan.

Commerzbank AG

Software Developer

03/2026 - 07/2026 | Prague

• •Developed Java-based solutions for a major digital transformation project, actively migrating and modernizing legacy UC4/Automic batch processing workflows into scalable architectures to improve financial data pipeline efficiency.
• •Engineered and optimized mission-critical banking software, ensuring secure, high-performance data integration between enterprise Data Warehouse systems, SAP modules, and core banking infrastructure.
• •Collaborated within a cross-functional, international team (English working language) to execute comprehensive system testing and technical documentation, ensuring regulatory compliance in a highly regulated banking environment.

Career Break

06/2025 - 02/2026

• •Mandatory military service (Türkiye) and relocation to Prague. Continued freelance technology writing throughout.

Ericsson

Software Developer

07/2022 - 05/2025 | Istanbul

• •Developed and maintained core features for the Ericsson Dynamic Activation (EDA) platform, a provisioning system used by over 280 operators worldwide to automate mobile service activation.
• •Engineered 5G provisioning infrastructure for Türk Telekom, one of Turkey's largest telecom operators serving millions of subscribers, enabling nationwide advanced 5G services.
• •Implemented OneNumber eSIM integration for Apple Watch devices at Türk Telekom, allowing a single phone number for seamless call forwarding and connectivity.
• •Delivered custom software solutions for MasMovil, a leading Spanish telecom operator, based on their specific requirements.

Icom Informatics Services

Software Developer

04/2021 - 06/2022 | Kocaeli

• •Developed and maintained full-stack admin panels for global and local clients, including NCR and Türk Lloydu, ensuring rapid implementation of new features and continuous system updates.
• •Engineered a Jira alternative (ITS - Issue Tracking System) to streamline internal project management and issue resolution processes.
• •Developed a specialized ship classification interface within the EPAS admin panel, delivered to a Turkish naval client.
• •Built the admin panel for Turk Loydu's TL-EASY project, significantly improving the efficiency of ship classification services.

Crede Consulting & Data Services

Software Developer · Freelance, concurrent with Roche

10/2020 - 03/2021 | Istanbul

• •Engineered data-driven intelligence systems for the finance sector, leveraging web scraping and text mining to transform raw data into actionable insights.
• •Developed CredIScore, an automated scorecard system that utilized data engineering pipelines to enhance credit risk assessment for clients.
• •Built CredIS, an early-warning platform that analyzed market data to flag credit risk for banking clients.

Roche

IT Specialist

04/2019 - 03/2021 | Istanbul

• •Delivered comprehensive IT onboarding and training for new hires on company systems, security protocols, and collaboration tools like G-Suite.
• •Provided multilingual (English/Turkish) Tier 1 & 2 technical support across a global, regulated pharmaceutical environment, troubleshooting issues for both Windows and macOS/iOS platforms.
• •Managed the deployment, configuration, and maintenance of on-premise physical and virtual server infrastructure using VMware, ensuring high availability and performance.
• •Managed user lifecycle, permissions, and group policies via Active Directory and administered cloud productivity suites including G-Suite and Microsoft 365.
• •Applied Agile methodologies (Scrum, Kanban) for service delivery and task prioritization, utilizing digital boards like Trello to streamline IT projects and support queues.

Eczacıbaşı

IT Support Specialist

10/2018 - 03/2019 | Istanbul

• •Managed the full lifecycle of support requests within an ITSM framework, handling ticket analysis, resolution, and escalation for a leading Turkish conglomerate.
• •Provided on-site and remote technical support to local and international end-users, ensuring business continuity.
• •Administered user accounts and access controls through Active Directory and supported the corporate Microsoft 365 environment.