Cem Binbir

• Led an agile development team of 4 members (including a frontend developer and a data scientist)
• Managed the progress of tasks that the team has committed and reported it to the CTO (and also to the CEO in absence of CTO)
• Actively wrote code, added new features and improved code quality by conducting code reviews
• Has taken a role in every part of the software development life cycle (SDLC)
• Actively monitored production environment by using tools and also manual observation (through controlling logs and system graphs when tools weren't enough)
• Attended meetings with business development team to discuss customer requests and new features
• Supported business development team for customer inquiries and shareholder reports
• JIRA administration

Notable Achievements:

• Rewrote the product from scratch with a new modern tech stack (C# .NET Core, Go, NoSQL DB, Kafka, Redis) using microservices architecture and domain-driven design approach
• Deployed the product to a fully scalable infrastructure that is built on Microsoft Azure
• Managed the transition from the old product running in Amazon AWS to the new product running in Microsoft Azure
• The product gained attention of reputable companies from various sectors (banking, aviation, car sharing, mobile games etc.)

Technologies Used:

• C# and .NET Core
• Go
• MongoDB
• Kafka
• Redis
• Docker
• Kubernetes (k8s)
• Microsoft Azure
• Grafana
• Prometheus
• Git
• JIRA

• Worked solely as the only backend developer
• Has taken a role in every part of the software development life cycle (SDLC)
• Successfully managed and improved database systems for the most performant outcome
• Used cloud services effectively for cost management and scalability of the product. Used AWS services include EC2, ELB, S3, Aurora, Redshift, Kinesis, Lambda, CloudWatch, SES, Lightsail, Route53
• Managed cost cutting and migration projects in cloud infrastructures (AWS and Azure)
• Supported business development team for customer inquiries and shareholder reports

Notable Achievements:

• Built a resilient backend software for the company's core mobile advertisement and notification product that serves 200K+ requests coming from mobile clients of 30K+ applications daily
• Launched a banking product with İş Bankası (Digital Coinbox) that includes hardware components as well as software
• Launched a keyfob product with Volkswagen that includes hardware components as well as software
• Added new features to core advertisement product while ensuring the high quality code

Technologies Used:

• Java
• Tomcat
• Amazon RDS for MySQL, Aurora DB and Redshift (PostgreSQL)
• Bash scripting
• Amazon AWS
• Git
• JIRA

• Started as a software developer and promoted to senior software developer thereafter
• Responsible for building backend applications that serve between mobile applications and customers' core services
• Participated to other backend projects' code reviews to ensure high-quality code

Notable Achievements:

• Gathered various business know-how through requirements of customers from different sectors (banking, aviation etc.)
• Improved on working with modern tech stack and MVC architecture
• Played a role in the early phases of the company's own banking and event notification products

Technologies Used:

• Java
• Spring / Play frameworks
• Tomcat
• IBM Cloud (Bluemix)
• SOAP and REST API services
• Git
• Gerrit
• Jenkins
• JIRA

• Worked as the responsible developer of the whole debit & prepaid card systems for nearly 4 years, with more than 2 years of this as the only responsible developer
• Actively added new features and maintained the code while ensuring the code quality meets enterprise's standards

Notable Achievements:

• Maintained the whole code repository of the debit & prepaid card system (end-to-end from card printing software to payment provision, statement process and nightly batch jobs) and added new features to them as the only developer for more than 2 years
• Migrated debit & prepaid card domain codes from ATM department to Payment Systems department
• Learned all the know-how about debit & prepaid card systems
• Launched debit & prepaid card projects of Paracard Bonus Trink, Bonus Genç and Bonus Rock (Rock'n Coke official festival card)
• Redesigned and rewrote prepaid card system from scratch as two developers

Technologies Used:

• IBM PL/I
• IBM zOS
• CA:Gen
• JCL (for nightly batch jobs)