UDAYANGA WARATHANNA
Chemnitz
Summary
Senior Software Engineer with 12+ years of experience in Java backend development and microservices architecture. Proven track record in multinational environments (Germany, Singapore, Sri Lanka) building scalable, market-leading software solutions. Expertise in cloud technologies (AWS, Azure), event-driven systems, and modern DevOps practices. Seeking a challenging role in Munich with hybrid or remote flexibility.
Overview
13
13
years of professional experience
1
1
Certification
Work History
Senior Software Engineer
Mobilezone
01.2013 - Current
- Develop and optimize REST APIs for DIWI B2B application handling millions of contracts
- Implement microservices architecture serving 1000+ dealers across Europe
- Utilize AI tools (ChatGPT, Co-Pilot, DeepSeek) to enhance development efficiency
- Technologies: Java, Spring Boot, AWS, Kubernetes, Kafka, PostgreSQL, Docker
Senior Software Engineer
Ladenzeile
02.2022 - 10.2023
- Designed event-driven microservices using Kafka for B2B Partner Dashboard
- Collaborated with stakeholders on requirement gathering and system design
- Technologies: Java 17, Spring Boot, Kotlin, Kafka, AWS, Kubernetes, MySQL, Angular
Senior Full Stack Engineer
Singtel
06.2020 - 01.2022
- Developed microservices for 5G Paragon portal using Java/Spring Cloud
- Implemented CI/CD pipelines with Jenkins/Ansible and managed Kubernetes in Azure
- Mentored interns and conducted code reviews
- Technologies: Java, Spring Boot, Vue.js, MongoDB, Azure, Docker, Kubernetes
Senior Software Engineer
CrimsonLogic
04.2019 - 06.2020
- Full-stack development of port management system using Angular and Java microservices
- Conducted R&D on Kafka and database performance optimization
- Technologies: Java, Spring Boot, Angular, Kafka, MySQL, Azure
Senior Software Engineer
ZoomIt
03.2018 - 03.2019
- Developed hotel booking management system using Spring Boot microservices
- Integrated with third-party booking APIs and reservation systems
- Technologies: Java, Spring Boot, REST/SOAP, MySQL, Docker
Software Engineer
ACCELeaero
10.2014 - 01.2016
- Developed crew management system for aviation industry
- Automated duty assignments according to international aviation rules
- Technologies: Java, J2EE, Spring, Oracle, Hibernate
Software Intern
ZILLIONe
01.2013 - 01.2014
- Entry-level software development role building foundational skills
Education
B.Sc.Engineering - Computer Engineering
University of Peradeniya
01.2014
Skills
- Programming
- Databases
- Cloud & DevOps
- Messaging & Streaming
- Frontend
- Effective Communication
- Tools & Methods
- Programming: Java, Kotlin, Spring Boot, J2EE, Hibernate
- Databases: PostgreSQL, MySQL, MongoDB, Oracle
- Cloud & DevOps: AWS, Azure, Kubernetes, Docker, ArgoCD
- Messaging & Streaming: Kafka, KSQL, RabbitMQ
- Frontend: Vuejs, Angular, JavaScript
- Tools & Methods: Git, Jira, Jenkins, Maven, GradleAgile
Certification
Microsoft Certified: Azure Solutions Architect Expert (October 2021)
LANGUAGES
English
German
Timeline
Senior Software Engineer
Ladenzeile
02.2022 - 10.2023
Senior Full Stack Engineer
Singtel
06.2020 - 01.2022
Senior Software Engineer
CrimsonLogic
04.2019 - 06.2020
Senior Software Engineer
ZoomIt
03.2018 - 03.2019
Software Engineer
ACCELeaero
10.2014 - 01.2016
Senior Software Engineer
Mobilezone
01.2013 - Current
Software Intern
ZILLIONe
01.2013 - 01.2014
B.Sc.Engineering - Computer Engineering
University of Peradeniya