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Senior
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jobs
Senior Software Developer
Hayrettin MAVIS
,
London, United Kingdom
Experience
Other titles
Skills
I'm offering
Senior software developer with extensive experience in backend development with Java technologies and good front-end skills.
With a strong eagerness in learning and practice, can play key roles throughout the SDLC of a project.
AREAS OF EXPERTISE
• Knowledge and experience on developing RESTful APIs and microservices.
• Comfortable with Agile & TDD practices and writing documentation
• Essential knowledge about developing on cloud platforms (Red Hat OpenShift, AWS, GCP)
SKILLS
Programming : Java 8+, Java EE, Spring Boot, Hibernate, Spring Cloud, Angular (Typescript).
Databases : Oracle & MySQL RDBMS, MongoDB & Cassandra NoSQL, Redis
Methodologies : REST API, Microservices, Oauth2 – Spring Security,
Tools & Platforms : CI/CD (Jenkins, Gitlab), SVN, Git, Bitbucket, Linux (shell scripting), Jira, Confluence, Docker, Kubernetes.
OTHER SKILLS
• A good translator when explaining technical data to non-technical people.
• Can read/follow up others’ code carefully and work well in the team to write reusable and well-documented code.
• Able to recommend and justify changes to existing products, services and processes.
• Contribution to teammates his essential work practice.
With a strong eagerness in learning and practice, can play key roles throughout the SDLC of a project.
AREAS OF EXPERTISE
• Knowledge and experience on developing RESTful APIs and microservices.
• Comfortable with Agile & TDD practices and writing documentation
• Essential knowledge about developing on cloud platforms (Red Hat OpenShift, AWS, GCP)
SKILLS
Programming : Java 8+, Java EE, Spring Boot, Hibernate, Spring Cloud, Angular (Typescript).
Databases : Oracle & MySQL RDBMS, MongoDB & Cassandra NoSQL, Redis
Methodologies : REST API, Microservices, Oauth2 – Spring Security,
Tools & Platforms : CI/CD (Jenkins, Gitlab), SVN, Git, Bitbucket, Linux (shell scripting), Jira, Confluence, Docker, Kubernetes.
OTHER SKILLS
• A good translator when explaining technical data to non-technical people.
• Can read/follow up others’ code carefully and work well in the team to write reusable and well-documented code.
• Able to recommend and justify changes to existing products, services and processes.
• Contribution to teammates his essential work practice.
Markets
United States
(Remote
only)
United Kingdom
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.
Language
English
Good
Ready for
Larger project
Ongoing relation / part-time
Full time contractor
Available
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
• 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 developer, Oracle, Mysql, REST services, REST API, Microservices, Web development
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.
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, Management, 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.
• 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
2008 - 2012
job
Senior Software Developer
Bank Asya / Istanbul, Turkey.
Played key role in implementing new integrations to Direct Debit System. Provided services for Commercial Card project. Kept the essential retail credit operations stable.
• Developed the core services for the extension project of Direct Debit system to Commercial Card System. Collaborated with a very big team flawlessly during the development process.
• Decreased development time from 1 day to 1 hour by tuning the procedure of file parsing and importing in Direct Debit System.
• Refactored Oracle Forms applications to modern looking .Net WinForms applications with high customer satisfaction.
Tech Stack: WinForms .Net, Soap Web Service, Oracle.
• Developed the core services for the extension project of Direct Debit system to Commercial Card System. Collaborated with a very big team flawlessly during the development process.
• Decreased development time from 1 day to 1 hour by tuning the procedure of file parsing and importing in Direct Debit System.
• Refactored Oracle Forms applications to modern looking .Net WinForms applications with high customer satisfaction.
Tech Stack: WinForms .Net, Soap Web Service, Oracle.
Design, Oracle, Integration, Net, It, Developer, WinForms, Development, Software, Tuning
2006 - 2007
job
Senior Software Developer
Turkuaz Software / Konya, Turkey.
• Designed and implemented update and backup strategies of products.
• Tuned real-time products for stability and performance.
• Gained strong customer relations and also experienced in how to analyze and solve customer needs and problems.
• Tuned real-time products for stability and performance.
• Gained strong customer relations and also experienced in how to analyze and solve customer needs and problems.
Developer, Backup, Software
My education
2002
-
2007
Selcuk University / Konya, Turkey
Bachelor's Degree, Computer Science
Bachelor's Degree, Computer Science
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