Mustafa Gül Email & Phone Number

● Seasoned Team Leader responsible for leading and managing a team of 6-8 talented backend developers & analysts. Conducting one-on-one meetings to provide constructive feedback, support professional growth, and address challenges.● Leading to Application Transformation (From .NET to Java) ○ Spearheaded the migration of applications from .NET to Java, concurrently transitioning to a microservices architecture. ○ Created backlog items for application transformation, ensuring adherence to defined deadlines. ○ Rewrote a portion of third-party applications during the transformation process. ○ Played a pivotal role in high-level architectural meetings, cost estimation, and resource management to ensure project success.● Led project delivery, ensuring alignment with scope, budget, schedule, and customer expectations.● Proactively escalated issues affecting development and provided strategic direction in the early stages.● Conducted design reviews, inspected development, and assigned tasks todevelopers.● Orchestrated the replatforming of legacy applications to align with the bank's current standards.● Projects: Contact Management, Anomaly Management, Internal Audit Management, Corporate Real Estate Management, Personal Data Sharing, Ethics & Anti-Corruption and Conflict of Interest,

● Planned and executed projects and requests, ensuring attention to detail and technical requirements.● Provided support for the production environment, conducting root cause analysis, and overseeing configuration management.● Mentored junior developers, sharing expertise and guiding their professional development.● Projects: Corporate Customer Login Management, Call Information Detail Dashboard, Given Credit Card Management

● Produced comprehensive functional and technical analysis documents, delineating requirements and modeling business processes.● Conducted system and application testing, ensuring robust performance.● Facilitated user acceptance tests, providing valuable support.● Managed production environment support, specializing in root cause analysis, configuration management, and data governance.● Oversaw release management to ensure smooth deployment of softwareupdates.● Developed and executed test scenarios to guarantee the reliability ofsystems.● Projects: Global Standards (Standardization of Customer Onboarding Flows)

● Modeled and coded requirements for new features in Application Servers as determined by the Product Owner.● Developed comprehensive test cases and executed them in a lab environment to validate software changes.● Addressed identified software bugs and took charge of business-critical change requests and complex code deliveries.● Provided urgent fixes to customers during emergency cases.● Led the resolution of customer-requested issues and managed Change Requests periodically.● Formulated solution plans aligned with release dates.● Prepared bundled software patches, prioritizing Change Requests based on importance, and ensured their delivery in subsequent releases.● Took an active role in the VOIP solutions software support and development team. The solution adheres to RFC standards and encompasses two essential components: Call Process and OAM (Operation, Administration, and Management). Managed products related to provisioning users, service management, and the configuration, installation, and upgrade of telephone switchboards.