05/28/2026 updated
SI
100 % available
Senior Java Backend Developer
Nehoiu, Romania
Only remote
Master degree in Image ProcessingAbout me
Senior Java Developer with 9 years of experience designing and delivering scalable, high-performance enterprise applications across eCommerce, healthcare, and territory management domains.
AWS SQSJava (Programming Language)JavaScriptSpring SecurityGradleJava ArchitecturesJava Development ToolsJava API For RESTful Web Services (JAX-RS)PostgreSQLApache MavenPlay FrameworkSwaggerOpenapiSpring CloudSpring MVC
Java & Spring Framework
Expertise in Java 21 and the Spring ecosystem including Spring Boot, Spring MVC, Spring Data, and Spring Security for building scalable, high-performance enterprise backend applications.
Microservices & REST APIs
Extensive experience designing and implementing microservices architectures and RESTful APIs, leveraging OpenAPI and Swagger for documentation and ensuring robust, maintainable service communication.
Cloud & AWS Services
Proficiency in AWS services including ECS, S3, SQS, CloudWatch, Lambda, EventBridge, and API Gateway for building and deploying cloud-integrated, scalable backend solutions.
Messaging & Asynchronous Processing
Solid knowledge of event-driven architectures using Kafka, RabbitMQ, and Redis for asynchronous processing and high-throughput data pipelines.
Databases & ORM
Experience with relational and NoSQL databases including PostgreSQL and MongoDB, combined with ORM frameworks such as JPA and Hibernate, and migration tools like Liquibase and Flyway.
Containerization & DevOps
Hands-on experience with Docker, Kubernetes, Git, GitLab, and CI/CD pipelines for containerized deployments and continuous integration and delivery workflows.
Security & Authentication
Knowledge of SSO and OAuth2 for implementing secure authentication and authorization mechanisms in enterprise applications.
Testing & Quality Assurance
Application of TDD, unit testing, integration and end-to-end testing using Testcontainers and JUnit to ensure software reliability and quality.
SAP & Salesforce Integration
Experience integrating enterprise systems such as SAP and Salesforce through backend Java microservices for data synchronization and business process orchestration.
Performance Optimization
Track record of improving system performance and responsiveness through backend optimizations, architectural enhancements, and event-driven processing in microservices environments.
Expertise in Java 21 and the Spring ecosystem including Spring Boot, Spring MVC, Spring Data, and Spring Security for building scalable, high-performance enterprise backend applications.
Microservices & REST APIs
Extensive experience designing and implementing microservices architectures and RESTful APIs, leveraging OpenAPI and Swagger for documentation and ensuring robust, maintainable service communication.
Cloud & AWS Services
Proficiency in AWS services including ECS, S3, SQS, CloudWatch, Lambda, EventBridge, and API Gateway for building and deploying cloud-integrated, scalable backend solutions.
Messaging & Asynchronous Processing
Solid knowledge of event-driven architectures using Kafka, RabbitMQ, and Redis for asynchronous processing and high-throughput data pipelines.
Databases & ORM
Experience with relational and NoSQL databases including PostgreSQL and MongoDB, combined with ORM frameworks such as JPA and Hibernate, and migration tools like Liquibase and Flyway.
Containerization & DevOps
Hands-on experience with Docker, Kubernetes, Git, GitLab, and CI/CD pipelines for containerized deployments and continuous integration and delivery workflows.
Security & Authentication
Knowledge of SSO and OAuth2 for implementing secure authentication and authorization mechanisms in enterprise applications.
Testing & Quality Assurance
Application of TDD, unit testing, integration and end-to-end testing using Testcontainers and JUnit to ensure software reliability and quality.
SAP & Salesforce Integration
Experience integrating enterprise systems such as SAP and Salesforce through backend Java microservices for data synchronization and business process orchestration.
Performance Optimization
Track record of improving system performance and responsiveness through backend optimizations, architectural enhancements, and event-driven processing in microservices environments.
Languages
EnglishFluentRomanianNative speaker
Project history
Territory Management Platform: Migrated the backend from Play Framework to Spring Framework on Java 21, improved platform performance and responsiveness through backend optimization and architectural enhancements, and enabled territory managers to generate comprehensive reports based on territory changes and adjustments.
Enterprise Integration Platform: Implemented a suite of backend Java microservices to streamline and centralize data synchronization between SAP and Salesforce. Improved scalability using event-driven integration architecture with AWS EventBridge, S3, and SQS, and optimized large-scale data processing and synchronization pipelines.
Cloud Tools Management API: Developed an open API to make integration with cloud-based equipment management more efficient and seamless. Reduced asset creation time by 25% and increased deployment security by introducing scanning jobs in pipeline processes.