Full Stack Developer

Experience

Senior Software Engineer / MasterControl

Apr 2023 - Present

• Worked at Mastercontrol as a remote contractor from Turkey.

• Worked as a full-stack developer for a Java/Angular application.

• Developed new features and did optimizations for the application

Tech stack:

• Spring Boot, Hibernate, Kafka, Angular, Websocket,

• Java 17, Gradle

• Jenkins, Github Actions, TDD, Testcontainers, Docker, Kubernetes

Senior Software Engineer / insightsoftware

Nov 2021 - Mar 2023

• Migrated generic Java Swing GUI application to Angular and Spring Boot services.

• Implemented several software features like searching, caching, generic component framework over Angular including Data Table component, generic rest framework

• Worked as as a part of an agile team doing Scrum and using Jenkins CI/CD.

• I work as a contractor for software development project of InsightSoftware Germany(former IDL)

Technology:

• Angular, Javascript, RxJS, Swagger

• Java, Spring Boot, Spring MVC, Spring Data JPA

Lead Software Engineer / Telenity

Oct 2020 - Oct 2021

• Developed new features and enhancements on Java based GIS/Spatial applications using J2EE(Wildfly) and Spring Boot

• Introduced a Redis cache cluster to fix database access bottleneck

• Improved message broker performance by introducing a sliding window

• Implemented reusable UI components on Angular ie. serving existing 3 pages also in a single page for fast and easy operation

• Scaled single AWS EC2 instances to run in a quorum of 3 instances distributed systems setup using Zookeeper, Camel, Redis Sentinel and Activemq LevelDB

• Migrated a PostgreSQL system to MySQL by moving whole data with a standalone Java batch job.

• Had responsibility for whole system, so did linux system administration on AWS EC2 instances including monitoring, release and deployment and scaling. Besides that, I did database administration tasks on production environment like database migrations and indexing.

Technologies:

• Java, Maven, J2EE(Wildfly), Spring Boot, Spring Data JPA, JDBC,

• MySQL, Postgres

• Angular, RxJS, Leaflet

• Apache Camel, Redis, Sentinel, JMS/Activemq, Zookeeper

• PostGIS, MySQL spatial extensions, locationtech library for GIS functions

• Bash scripting

The projects I worked on scaled to serve a large amount of concurrent users in a multi tenant setup and consisting of several modules like an engine or a background application, a rest server, an alarm application, notification module and also other modules like reporting etc and finally with a frontend portal.

Senior Software Engineer / Azerion Turkey

Apr 2020 - Sep 2020

• Developed new features for a digital farming application with .NET Core tech stack on Azure cloud by using RabbitMQ, Kafka(MS Event Hubs), Redis and Angular with RxJS.

• Implemented a feature toggle to with dynamic component loading in Angular to enable serving only the features/modules which customer paid for.

Senior Software Engineer / easy software

Sep 2019 - Mar 2020

• Designed and implemented a greenfıeld software project which was a portal in Java, Spring Boot and Vue.js with DDD and microservices architecture.

• Worked as full stack from frontend development to acceptance tests and from backend design and development to CI/CD pipeline, containerization and orchestration.

Full stack development with:

• Java 8, Spring Boot, Spring Data, Mongo, REST and SOAP web services for integration

• JavaScript, Vue.js, Cucumber.js, Nightwatch, Selenium

• Keycloak, LDAP, Consul, Docker, Kubernetes, Jenkins

Senior Software Engineer / Türkiye Finans Katılım Bankası

Oct 2018 - Aug 2019

• Architectural redesign of a monolithic J2EE EJB project and migrating it to Spring Microservices

• Architected and implemented an end-to-end Spring Boot and Spring Cloud project.

• Performance monitoring, optimization, scaling of the TFX TARGET exchange trading Java application.

• Some bug fixes of a .NET application.

Full Stack Java Development with:

• Java 8(functionals, lambdas etc.)

• JSF, Swing, JavaFX, JavaScript, jQuery, CSS, Sass, React,

• J2EE EJB with Wildfly/JBoss, Standalone Spring 4.0 services,

• Spring Boot with Data(JPA Hibernate), MVC, REST, RMI(Remote Method Invocation), JMS(ActiveMQ Message Queue) and Spring Cloud(Zuul, Ribbon, Eureka) with DevOps(Docker, Kubernetes),

• SOAP web services, Stomp, Websockets, Oracle Coherence for distributed caching, Oracle SQL.

• .NET(Entity Framework, Devexpress, Web Services, WCF).

• Git for version controlling and TFS for Scrum management, Linux Bash for system administration

Senior Software Engineer / Garanti BBVA

Nov 2010 - Sep 2018

Development and maintenance of several database-driven desktop, web applications and web services on banking.

• Development of Java (Spring, Maven, JSP, JSF, ORM/Hibernate) and C# ASP.NET (MVC, Entity framework, LINQ) applications with JavaScript (JQuery, Backbone.js, etc.).

• Development of web services with SOAP and REST.

• Used Git for version controlling, Jenkins for Continuous Intergration (CI).

• Worked with DB2 and Oracle. Done database table index design and db access performance optimization.

Software Engineer Intern / Açı Schools

Aug 2010 - Sep 2010

• Development and Reporting of .NET Web and Desktop Applications.

Software Engineer Intern / Turk Telekom

Jul 2008 - Aug 2008

• Maintenance of Computer Networks Infrastructure