01/15/2025 updated
100 % available
Senior Software Engineer with Java and Spring Boot Expertise
Budapest, Hungary
Worldwide
BSc in Engineering Information TechnologyHTMLJava (Programming Language)JavaScriptApplication Programming Interfaces (APIs)Microsoft AzureCascading Style Sheets (CSS)Cloud ComputingCode CoverageCommunications SecurityDatabasesContinuous IntegrationDevOpsJUnitPostgreSQLMongoDB
Java Development
Extensive experience in Java 17 and Spring Boot for building and scaling microservices systems.
Cloud and DevOps
Proficiency in Docker, Azure, and Terraform for deploying scalable services and implementing efficient CI/CD pipelines.
Database Management
Expertise in various database technologies including PostgreSQL, MongoDB, and handling large-scale data operations.
Frontend Development
Skills in React, Redux, HTML, CSS, JavaScript, and TypeScript for creating responsive and dynamic user interfaces.
API Development
Experience with RESTful services, SOAP, and various API technologies including OAuth2 and JWT for secure communication.
Testing and Quality Assurance
Proficiency in TDD methodologies using JUnit, Gherkin, BDD, Cucumber, and Serenity for ensuring high-quality code and test coverage.
Microservices Architecture
Expertise in designing and implementing microservices, utilizing technologies like Spring Cloud and event-driven architectures.
Extensive experience in Java 17 and Spring Boot for building and scaling microservices systems.
Cloud and DevOps
Proficiency in Docker, Azure, and Terraform for deploying scalable services and implementing efficient CI/CD pipelines.
Database Management
Expertise in various database technologies including PostgreSQL, MongoDB, and handling large-scale data operations.
Frontend Development
Skills in React, Redux, HTML, CSS, JavaScript, and TypeScript for creating responsive and dynamic user interfaces.
API Development
Experience with RESTful services, SOAP, and various API technologies including OAuth2 and JWT for secure communication.
Testing and Quality Assurance
Proficiency in TDD methodologies using JUnit, Gherkin, BDD, Cucumber, and Serenity for ensuring high-quality code and test coverage.
Microservices Architecture
Expertise in designing and implementing microservices, utilizing technologies like Spring Cloud and event-driven architectures.
Experience
Professional experience5 - 10 years
Freelancer since2019
Languages
GermanBasic knowledgeEnglishFluent
Project history
Lead development of advanced Spring Boot applications, focusing on modernizing and migrating critical systems. Design scalable solutions, implement secure data integration, and ensure efficient data migration with PostgreSQL.
Managed and developed various projects outside of regular working hours, spanning backend and frontend development. Projects included CRM systems, solar panel trading websites, banking applications, and e-commerce platforms.
Focused on architecture, design, and development of key projects for Tesco's supplier-facing software. Transformed an old mainframe application into a modern calculation and billing engine using Spring Boot. Utilized PostgreSQL, Kafka, and JWT to securely process and aggregate 40 million records daily, leveraging Azure for cloud solutions.