Giorgos Sakkas
Livadia,Cyprus
Summary
Am seeking a full-time position in the field of Software Development as a Senior Software Developer.
Overview
13
13
years of professional experience
9
9
years of post-secondary education
Work History
Software Engineering Team Leader
TRG
Limassol, Cyprus
04.2024 - Current
- Leading a cross-functional team of 8 people
Senior Software Developer
TRG
Limassol, Cyprus
01.2021 - 03.2024
- Design, architect and implementation of cloud-native applications, microservice-based and event-driven
architectures using Java 11 programming language, Spring Boot / Quarkus frameworks and Apache Kafka.
Deployment of microservices using Docker and Kubernetes. - Experienced with Telco infrastructure and network protocols (SS7, Diameter, SMPP, SIP)
- Experience in Cyber intelligence, Cyber security and Telecommunication network penetration testing
Senior Software Developer
CRM.COM
Nicosia, Cyprus
01.2014 - 01.2021
- Experience with microservices, event-driven architectures and high volume systems.
- Design/Development of web-based CRM/Billing/Rewards applications.
- Experience in Pay TV industries (Design/ Implementation of Subscription
- Management and Billing system, Integration with conditional access systems and payment gateway systems).
- Experience with SMTP, SMPP and other 3rd party system integrations.
- Experience with Unit/Integration testing, volume testing.
- Experience in coaching and assisting 3-5 developers.
Junior Software Developer
CRM.COM
Nicosia , Cyprus
09.2011 - 01.2014
- Development of CRM/Billing/Reward applications.
Education
BSc in Computer Science - Department of Informatics
Aristotle University
Thessaloniki/Greece 09.2006 - 06.2010
Makarios 3rd Lyceum
Larnaca/Cyprus 09.2001 - 06.2004
Saint Lazarus Gymnasium
Larnaca/Cyprus 09.1998 - 06.2001
Skills
- Proficient in: Object Oriented Programming using Java
- Experience with: C
- Familiar with: C, PHP,Python
- Database Engines: PostgreSQL, Oracle, DB2, MS-SQL, MySQL, MongoDB, Redis
- Front-end technologies: React JS, Angular, JQuery, JSP, JSF, Primefaces, JavaScript, HTML, CSS
- Event/Message Brokers: Apache Kafka, MQTT
Programming Languages
Software & Technologies
- Orchestration Tools: Docker, Docker Compose
- Frameworks: Quarkus, Spring Boot, J2EE, Hibernate, OSGi
- Authentication / Authorization / Security: Keycloak, OAuth, OpenID Connect, JWT, Hashicorp Vault
- Issue Management / CI/CD: Jira, Gitlab, Github, BitBucket, Jenkins, Maven
- Other: SOAP/REST APIs, JUnit, JSON/XML, Apache Web server/ Tomcat/Geronimo, IBM Websphere,
JBoss/Wildfly, Jasper reports, Pentaho ETL, JMeter, JProfiler - Experience with Scrum agile
methodology
Development Methodologies
Other
Languages
- Greek
- English
Civil service
- Served for 25 months in the Cyprus army
Timeline
Software Engineering Team Leader
TRG
04.2024 - Current
Senior Software Developer
TRG
01.2021 - 03.2024
Senior Software Developer
CRM.COM
01.2014 - 01.2021
Junior Software Developer
CRM.COM
09.2011 - 01.2014
BSc in Computer Science - Department of Informatics
Aristotle University
09.2006 - 06.2010
Makarios 3rd Lyceum
09.2001 - 06.2004
Saint Lazarus Gymnasium
09.1998 - 06.2001
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