Koray Dakan Email & Phone Number

Istanbul, Tr

İstanbul, Türkiye

- Working in the Enterprise Architecture department of the bank, - Developing and giving support for the in-house banking microservices software framework (.Net Core), - Developed a web sockets module from scratch (without using SignalR), that is fully compliant with SignalR protocol, - Developing extensions and giving support for Identity Server, - Carrying out the transition from Identity Server to Keycloak, developing provider extensions on Keycloak to fulfill the custom needs of the bank,- Making research and contributing to architectural decisions on service banking solutions. - Using mainly .Net Core, small scale Java, and various infrastructure tools and platforms to support microservices development, app and api security.

Istanbul, Turkey

- Built a framework for centralized logging/tracing for microservices, to ELK (Elastic and Kibana) on http apis and queue consumers, service discovery and centralized configuration with and without Docker containers, api client for http and MassTransit RabbitMQ channels.- Built generic DB CRUD and search libraries similar to GraphQL, DB audit logging and DB snapshot management library. - These framework libraries are used in the new payment gateway and hotel search / reservation hub products.- Built booking and finance module, with api integrations and financial transactions (network sales and credit line, cancellation fees, markup and commission revenue earnings, payments and invoicing) between hub, providers, agents, sub-agents and guests.- Built a React app generator which generates the whole CRUD spa from swagger json and validation rule definitions from the backend, which can do the job of a small size frontend team alone. Architected and built the frontend of the hotel hub backoffice alone, more than 100,000 lines of code, using the 3000 loc code generator tool I’ve built.- Used ASP.Net Core, EF Core, xUnit, MassTransit, RabbitMQ, Polly, Docker, Kubernetes, PostgreSQL, Redis, Elastic Search, React js, Redux, employing unit testing and some DDD patterns, in a microservices architecture.

Istanbul, Turkey

- Worked on an ordering/purchasing and inventory management system for a client, and on my own startup ideas, and created tutorials on my Github account to help other developers.- Used ASP.Net Core 2, EF Core 2, SQL Server, and React.js.

Istanbul, Turkey

- Worked as an outsource employee at KoçSistem. on their financial leasing projects.- Eliminated writing and maintaining tens of thousands of lines of code needed to integrate with evolving 3rd party service API’s.- Developed code generators that generate code to transform data between deep nested data structures on the service contract and map it to the auto-generated relational data access layer (they were not using an ORM and building data access layer manually).- Integrated various 3rd party SOAP and REST web services with the financial leasing software for Yapı Kredi Leasing. (used C#, ASP.NET, Oracle, PL/SQL, SoapUI)

- Researched NLP technology for Turkish language support, which is missing in major NLP products.- Worked alone on a startup chatbot platform (botgate.ai), involving conversation and workflow design, entity recognition & intent matching, integration with Facebook Messenger and a web widget for client websites. - Used Node.js, Socket.io, MongoDB for the MVP, later ported it to ASP.NET Core, SignalR, SQL Server.

Istanbul, Turkey

- Eliminated manual and error-prone operational tasks previously handled by a team of risk assurance employees. - Developed scrapers to obtain customers' financial info from their online banking accounts from 15 banks in the UK and Spain, automated payments, integrated CurrencyCloud API for EFT and currency exchange.- Used C#, Web API, EF, SQL Server, Selenium, Javascript, AWS SNS (for OTP SMS’s) for my microservice.

İstanbul, Türkiye

- Bootstrapped a successful enterprise application in an operations company which didn’t have any prior substantial software development.- Led a team of 5 developers, researched parsing resumes in English and Turkish, worked on the architecture & coding of the new HR & Payroll web application, funded for R&D by TUBITAK.- The application incorporates selection/placement, employee self-service, performance, attendance, overtime, leave, payrolling, payslip, training, task/approval/document flows, simple document management, ID Card parsing using OCR, CV parsing, notifications, and caching.- We implemented this system for Turkish branches of clients like Tchibo, Amazon, Clifford Chance, and local group companies like Netlog, Paksoy and for the company’s internal use.- Used C#, ASP.NET MVC, Entity Framework, jQuery, Bootstrap, and SQL Server.

İstanbul, Türkiye

Became the team lead for the financial leasing project, I was the only one who understood how the full system worked. I worked within all of the teams, including analysis, data migration, development, and support. I was also heavily involved in financial calculations and accounting transactions.My projects in TEB:- Development and data migration projects of the new financial leasing software for TEB Leasing. Later another project for merging Fortis Leasing software and data during TEB & Fortis merger (used C#, WCF, WinForms, DevX, PL/SQL, T-SQL). (overall 4.5 years, last 2.5 years as a team lead)- Dealers credit application portal for TEB Cetelem Consumer Finance. (used C#, WCF, ASP.NET, DevX, PL/SQL) (8 months as a senior software developer)- Portfolio management application for TEB Portfolio. (used PL/SQL, Oracle Forms, HTML) (8 months as a senior software developer)- Core banking corporate credits (used PL/SQL, Oracle Forms, HTML) (2 years as a senior developer)

İstanbul, Türkiye

- Worked on YTL conversion, Oracle Forms/Reports Server 10g conversion and custom client projects on the financial leasing software Lease2000. Also gave Oracle DBA support. (used Oracle Forms, PL/SQL). - I was the only developer in my team to learn ASP.NET and rewrite the financial leasing application, joined another team who were .NET developers but didn’t know financial leasing. (used C#, ASP.NET, T-SQL, and SQL Server).

İstanbul, Türkiye

- Analyzed and developed network sales systems and claims systems for Demir Life Insurance, Ankara Life Insurance, and OYAK Pension. (used Oracle Forms & Reports, PL/SQL)

İstanbul, Türkiye

- Developed programs for financial leasing software. (used Oracle Forms & Reports, PL/SQL)

İstanbul, Türkiye

- Developed Ordering, Sales, Accounts, Inventory System for Dardanel Detay. (used Oracle Forms, PL/SQL)- Developed Vehicle Production Tracking & Planning System for Ford Otosan, migrated the old system from Access & Visual Basic to Oracle Forms & Reports.

Bachelor'S Degree, Mathematics Engineering

Developed a Pascal compiler using C, YACC & Lex for my graduation project.

Education record

Master'S Degree, Mba