Koray Kocakaya
Senior Software Engineer
Ankara
Summary
Hands-on Senior Software Engineer with extensive experience developing and supporting mission critical applications. Purpose-driven professional active in engaging, training and mentoring others.
Overview
9
9
years of professional experience
9
9
years of post-secondary education
2
2
Languages
Work History
Tech Lead
Oplog
05.2023 - Current
- Implemented persistent data storage layer using MySQL for Robot Management System and contributed to algorithm development to enhance data optimization and selection.
- Implemented automated error alerts with Grafana to swiftly detect warehouse robot issues.
Senior Software Engineer
Commencis
11.2022 - 05.2023
- Developed backend component of event-driven translation application for Vakko, leveraging suite of AWS services such as API Gateway, Lambda, DynamoDB and S3
- Integrated machine learning capabilities using services such as Transcribe, Translate, and Polly. Achieved a performance optimization of 80% by replacing AWS Transcribe service with OPENAI Whisper
- Performed new Java-based optimizations (e.g. Snapstart) for AWS Lambda cold start problem
Senior Software Architect
Cybersoft, E-finance
01.2021 - 11.2022
- Fixed the application that made sending e-ledger files to GIB, prevent company from losing money
- Designed and implemented and application caching system leveraging Infinispan, resulting in a notable %7 reduction in memory consumption.
- Converted E-finance projects Http-push to Http-pull by using Apache ActiveMQ
- Developed MongoDB Interpreter (like SQL) for company core infrastructure
Lead Software Engineer
Cybersoft, Insurance
01.2019 - 12.2020
- Participated in architecture, design and implementation of Insurance-Collection project for Sompo Japan.
- Discussed project progress with customers, collected feedback on different stages and directly addressed concerns.
- Provided guidance and mentored less-experienced staff members.
- Integrated third-party tools (Mernis, banks) and components into applications with SOAP, Rest web services.
- Designed and Orchestrated CI/CD pipeline for collection project using Bamboo
Software Engineer
Cybersoft, Insurance
08.2014 - 12.2018
- Developed Insurance core infrastructure project by using Java-8, Spring and Hibernate.
- Worked with software development and testing team members to design and develop robust solutions to meet Insurance client (Sompo Japan, Şeker Insurance) requirements for functionality, scalability and performance.
- Developed multilingual insurance application for Azerbaijan Icbari Bureau.
- Developed pricing engine by using Drools and Neo4j.
- Worked on different insurance project modules (collections, agency, policy administration).
Education
Bachelor of Science - Computer Engineering
Middle East Technical University
Ankara 09.2009 - 06.2014
High School Diploma -
Ankara High Science School
Ankara 09.2005 - 06.2009
Skills
Programming Languages: Java-17, Golang
Framework: Spring Core-AOP, Spring Data, Spring Boot, Spring Cloud, Hibernate
Database Management: Mssql, Oracle, Mysql, Postgresql
NoSQL Databases: Redis, MongoDB, Infinispan
CI/CD Tools: Bamboo, Gitlab Runner
Testing: Junit5, Mockito
Source Control: Git, Github, Gitlab
Cloud and DevOPS: AWS, Docker
Message Brokers: ActiveMQ
API Development: REST, GraphQL, Websocket
Build Automation: Maven
Timeline
Tech Lead
Oplog
05.2023 - Current
Senior Software Engineer
Commencis
11.2022 - 05.2023
Senior Software Architect
Cybersoft, E-finance
01.2021 - 11.2022
Lead Software Engineer
Cybersoft, Insurance
01.2019 - 12.2020
Software Engineer
Cybersoft, Insurance
08.2014 - 12.2018
Bachelor of Science - Computer Engineering
Middle East Technical University
09.2009 - 06.2014
High School Diploma -
Ankara High Science School
09.2005 - 06.2009