Profile Picture
0 jobs

Senior Software Developer

Hayrettin MAVIS , London, United Kingdom


10 - 14 years

Other titles

Senior Software Developer fullstack developer


Oracle Oracle forms Pl/sql Sql JAX-ws + 16 more

I'm offering


United Kingdom
United States (Remote only)
Germany (Remote only)
Netherlands (Remote only)
Denmark (Remote only)
Norway (Remote only)
Sweden (Remote only)
Finland (Remote only)

Links for more

Once you have created a company account and a job, you can access the profiles links.



Ready for

  Smaller project
  Larger project
  Ongoing relation / part-time
  Full time contractor


Typically available right away

My experience

2019 - 2020   project
Senior Software Developer Ebruu Ltd.
Security Control Monitoring Project (SCM) gathers data from various security devices and presents to dashboards on web/mobile endpoints.
• Implemented backend REST services with Spring Boot for providing data to dashboards.
• Worked effectively within collaborative team to identify and resolve issues.
• Participated in code reviews with security point of view.
Tech Stack: Spring Boot with Java 11, Spring MVC, Spring Security
Spring-boot, Backend udvikler, Oracle, Mysql, REST services, REST API, Microservices, Webudvikling

2013 - 2019   job
Senior Software Developer Turkish Airlines / Istanbul, Turkey.
Agency Portal Project / Jan 2018 – Sep 2019 - Turkish Airlines, Istanbul/Turkey
Agency Portal Project is the transformation of the old cumbersome Liferay based web application to a modern, flexible microservices application.
• Played a pivotal role in an experienced team who are growing and developing with modern technologies.
• Make decisions on the roadmap of the transformation with the team.
• Designed, built, and maintained of backend microservices and frontend components.
• Implemented integration between management services and CRM system.
• Developed authentication and authorization mechanism in Angular together with frontend developer.
Tech Stack: Java 8, Spring Boot, Microservice, Angular7, OpenShift, TDD, Oauth, Oracle, GrayLog

Crew Self Service Project / Feb 2016 – Jan 2018 - Turkish Airlines, Istanbul/Turkey
Crew Self Service (CRESS) Project is the mobile transformation of crew-oriented applications, which are very crucial for daily operations of cabin & cockpit crew.
• Played key role for designing and implementing integration strategies between CRESS and CMS (Crew Management System)
• Developed backend JAX-RS services for notification and crew list components.
• Participated in discussions with frontend developers to help them develop more accurate prototypes
Tech Stack: Java 8, Java EE, Rest API, Angular4, Couchbase, IBM MQ.

Crew Management System / Feb 2013 – Feb 2016 - Turkish Airlines, Istanbul/Turkey
Provided support & integration services for Crew Management System, which is responsible to assign crews to the flights ideally in a daytime operation.
Key achievements:
• Spearheaded and mentored junior engineers using pair programming and code review sessions in order to make the team productive.
• Managed business operations dev team which develop integrations and handle issues in order to improve stability and consistency of CMS.
• Developed data retrieval interfaces from CMS with Python, SOAP Web services with Java in order to combine data layer to external services/systems.
• Wrote a generic integration layer which decreased the development time of new integration components.
Tech Stack: Python, Oracle, SOAP & REST web services (Jax-Ws Jax-Rs), IBM MQ.
Frontend, Angular, UX, Spring, Microservices, Ledelse, Service, Developer, Software, SOLID, Web, Junior Developer, Backend

2012 - 2013   job
Senior Software Developer Turkiye Finans Bank/ Istanbul, Turkey..
Implemented the conversion between external components within a short-term contract.
• Developed a wrapper interface serving between old system in order to provide backward compatibility.
• Improved decision of approval procedure of retail credits.
• Developed and integrated a Digital Expertise service client to retail credits.
Tech Stack: C#, WPF .Net, VB6, Sql Server.
Retail, Service, Banking, Developer, Software

My education

2002 - 2007
Selcuk University / Konya, Turkey
Bachelor's Degree, Computer Science

My resume

  Download resume

Hayrettins reviews

Hayrettin has not received any reviews on Worksome.

Contact Hayrettin MAVIS

Worksome removes the expensive intermediaries and gives you direct contact with relevant talents.

Create a login and get the opportunity to write to Hayrettin directly in Worksome.


21300+ qualified freelancers
are ready to help you

Tell us what you need help with
and get specific bids from skilled freelancers in Denmark