Hakan Sandıkkaya
Senior Software Developer
Java & Spring Boot Expert
About Me
Experienced software developer with over 15 years of expertise in designing and implementing scalable backend systems, microservices architecture, and full-stack applications. Adept at leading cross-functional teams and delivering high-impact projects in sectors such as finance and healthcare. Proficient in cutting-edge technologies, including Spring Boot, PostgreSQL, and ReactJS, with a strong focus on system integration, real-time data processing, and DevOps practices.
Committed to driving innovation and operational efficiency, I aim to contribute by delivering robust software solutions that align with organizational goals. My expertise in designing event-driven systems, optimizing workflows, and mentoring teams ensures successful project outcomes and enhanced productivity. With a passion for continuous learning and creative problem-solving, I strive to create value through technology, improve user experiences, and support company growth in a dynamic, fast-paced environment.
Key Qualifications
Comprehensive Backend Development Expertise
- Strong command of backend technologies like Spring Boot, Java, and database systems such as PostgreSQL, Oracle and Redis
- Proven ability to design and implement scalable and efficient backend systems
Microservices Architecture
- Proficient in designing, developing, and managing microservices-based architectures, including event-driven systems and the Saga Pattern
Finance and Healthcare Sector Experience
- Significant contributions to projects in cryptocurrency platforms, telemedicine, and radiology imaging systems, demonstrating domain versatility
Integration Expertise
- Hands-on experience with third-party integrations, such as Binance API, payment gateways, and medical device systems
Leadership and Team Management
- Successful leadership as Technical Team Lead, involving team coordination, mentoring, and decision-making for project architecture and execution
Full-Stack Development
- Proficiency in frontend frameworks such as ReactJS, AngularJS and EmberJS, with a holistic understanding of application development
Big Data and IoT Implementation
- Experience with Big Data platforms (Hadoop) and IoT devices (Raspberry Pi 4) for predictive analytics and sensor data management
DevOps Practices
- Familiarity with tools like Google Cloud, Digital Ocean, and DevOps pipelines, ensuring efficient deployment and scaling
Industry Certifications
- Certified Java Software Specialist, reflecting a deep understanding of Java programming
Cross-Domain and Role Adaptability
- Transitioned seamlessly across diverse industries (education, finance, healthcare, and public sectors) and roles (developer, team lead, manager)
Key Experience Highlights
Project Management
Extensive experience managing project lifecycles, from feasibility studies to deployment
Real-Time Systems
Developed systems that process real-time data from exchanges and sensors
Problem Solving
Addressed complex challenges, such as migrating legacy systems and implementing advanced features in regulated environments
Technical Proficiency
Mastery over tools like RabbitMQ, Keycloak, and Apache Tomcat, reflecting a comprehensive technology stack
Education
International Relations
Anadolu University
2023 - 2027
Software Engineering
Akdeniz Education and Research University
2018 - 2022
Business Administration
Anadolu University
2018 - 2022
Computer Technology and Programming
Cumhuriyet University
2004 - 2007
Professional Experience
SG Veteris
London, UK
2021 - 2025
Ydm Informatics
Ankara, TR
2021
Sirius Group
Ankara, TR
2020 - 2021
Promet Informatics
Ankara, TR
2018 - 2020
Tübitak SAGE
Ankara, TR
2018
Medoc Technology
Ankara, TR
2012 - 2018
Datasel Information Systems
Ankara, TR
2009 - 2010
Sisoft Healthcare Information Systems
Sivas, TR
2008 - 2009
Bilsa Software Inc.
Sivas, TR
2006 - 2007