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Onur Agtas

@onuragtas

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Senior full stack developer specializing in Java, Spring Boot, and Angular-driven solutions.

Turkey

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What I'm looking for

I seek senior engineering roles where I can lead full-stack development, shape architecture, mentor teams, and build cloud-native, scalable solutions.

I am a Senior Full Stack Developer with extensive experience designing and delivering scalable web applications using Java, Spring Boot, Angular, and related technologies. I have led development and infrastructure efforts across enterprise projects including water management and government systems.

Throughout my career I have built core infrastructure frameworks, implemented cloud-native deployments with Docker, Kubernetes and Azure, and worked with databases such as PostgreSQL, MySQL and MongoDB. I have also managed teams, trained developers, and driven CI/CD practices using GitLab CI/CD and Azure DevOps.

I prioritize pragmatic architecture, maintainable code, and responsive user experiences, applying tools like Hazelcast, Elastic Search, Spring Security, and Bootstrap to deliver reliable production systems.

Experience

Work history, roles, and key accomplishments

Senior Full Stack Developer

Apinizer

Mar 2019 - Jan 2021 (1 year 10 months)

Designed and developed core infrastructure framework using TypeScript, Spring Boot and Angular; led full-stack development and trained the development team to improve delivery and reliability.

TypeScript Angular Spring Boot MongoDB Docker Kubernetes Hazelcast

Senior Full Stack Developer

Siemens

Dec 2017 - Mar 2019 (1 year 3 months)

Developed senior full-stack web applications and delivered an end-to-end water management solution using Spring Boot, Angular and PrimeNG for Izmit Water and Sewerage Administration.

Spring Boot Angular PrimeNG Java PostgreSQL Maven REST APIs Responsive Web Design

Senior Full Stack Developer

HAVELSAN

Nov 2014 - Dec 2017 (3 years 1 month)

Designed and implemented core infrastructure for the SSM PYBS project using PrimeFaces, JSF2, Spring and Hibernate; contributed to full-stack development and system integration.

JSF PrimeFaces Spring Framework Hibernate Hazelcast Activiti Java PostgreSQL

Software Engineering Manager

Doktrin Technology

Oct 2012 - Nov 2014 (2 years 1 month)

Led engineering efforts to design and develop core infrastructure using JSF2, PrimeFaces, Spring and Hibernate, overseeing delivery and backend integration with PostgreSQL.

Team Leadership JSF PrimeFaces Spring Framework Hibernate PostgreSQL Software Architecture Mentoring

Full Stack Developer

Oyak Technology

Apr 2010 - Oct 2012 (2 years 6 months)

Performed full-stack web application development using JSF2, PrimeFaces, Spring and Hibernate, delivering enterprise web solutions backed by PostgreSQL.