As the Freelance Senior Software Developer, ensured business continuity and customer satisfaction on hightransactional microservice environment under high turnover rate. Adapted highly on changing environment and took the ownership of the backend systems.

As the Senior Software Architect, I evaluated the current state of the applications and implemented enhancements in accordance with the technical and business needs.

As the leader of the development team, I took over the product as MVP and developed a highly performing, horizontally scaled product resulting in numerous new customers and high customer satisfaction. While adding new features and making performance improvements I made the onboarding of new team members and created a team culture for getting higher outcomes. These efforts were recognized by the management team leading to my promotion as a Software Architect to create new prototypes and products with the help of my technical expertise and team development skills.

• Designed the application to operate in a horizontally scaled environment.
• Applied concurreny techniques for better performance and utilization.
• Built tracking and product performance systems to provide higher value for stakeholders,
• Optimized the database structure to handle an increasing number of transaction and resolving the bottlenecks.
• Implemented design patterns to establish a robust code base for the current and upcoming developments.
• Applied Clean Code principles and ensured that the testable deveopments are delivered.

As part of the backend development team, I worked as a Senior Java Developer enabling the core services creating high value for partners and customers. These services include

I managed projects for improvement of the existing systems/applications and implementation of the new initiatives with appropriate methodologies. Within this role, my responsibilities were; 

Work and liaise with the local and regional groups to determine business requirements and demands related to digital projects.

• Lead all stakeholders, third party vendors and resources across multiple regions/countries through the phases of projects based on Citi processes and change management governance.
• Ensure that the processes and results are in line with the plans in terms of cost, quality, schedule and expectations.
• Create, communicate and present project status, issues and resolution plans to necessary stakeholders.
• Maintain process & procedure documentation, project documentation ensuring these documents are accurate and available.
• Manage assigned applications to ensure continuous improvement

• A member of the development team which is responsible for the Turkey's well known Payment Facilitator iPara. 
• I have been developing several projects as including virtual pos bank integrations, e-invoice integration and also new products like webpos, e-giftcard. 
• I have gained deep understanding about payment systems, global industry standarts regulations like pci-dss and up-coming new products in the market. 
• As a great bussines result the Webpos project was announced as a nominee for "The most innovative software product of 2014" by Tesid 

• Maintaining and enhancing the mission critical and logistic operations software which muti million transactions are processed everyday and several client and customer specific services were provided. 
• Most important project was developing a brand new reporting product that supported the need of instant reporting for different management levels for effective decision making. 
• Transformed the manual processing of report generation into a scheduled and automated structure and platform. 
• I was responsible from project stages from initiating to closing and also primary operational stage with the highly qualified team. 
• The project added great business value for the organization and gained stunning results from both corporate-wide and customers. 

I started my career as a Junior application developer. I was given small tasks to execute on the existing sales system. After success achieved in the development of the sales system,