03/22/2026 updated
100 % available
Java Backend Developer
Yerevan, Armenia
Worldwide
Master's Degree in Computer and Information ScienceAbout me
Backend Engineer specializing in scalable, high-load fintech and distributed systems. Experienced with Java, Spring Boot, WebFlux, Kafka, PostgreSQL, MongoDB, and AWS. I build low-latency APIs and fault-tolerant microservices focused on performance, reliability, and clean architecture.
Java (Programming Language)Spring SecurityAmazon Web ServicesAutomationTest AutomationMicrosoft AzureCloud ComputingCode CoverageContinuous IntegrationDesign Elements and PrinciplesDevOpsGitHubHealth AssessmentInfrastructure ManagementJUnit
Java Backend Development
Expertise in building scalable backend services using Java and Spring Boot with RESTful API design principles
Database Management
Proficiency in working with PostgreSQL, MongoDB, MySQL, MSSQL and Redis for data storage and optimization
DevOps and Cloud Technologies
Experience with Docker, Kubernetes, AWS services, Azure DevOps, and infrastructure automation tools
Microservices Architecture
Implementation of microservice architectures with service discovery, load balancing, and health checks
Message Brokers
Experience with RabbitMQ and Apache Kafka for asynchronous communication and event-driven architecture
Security Implementation
Design and implementation of authentication and authorization systems using Spring Security and JWT
Testing and Quality Assurance
Automated testing with JUnit, Mockito, Postman, and Selenium for comprehensive test coverage
Monitoring and Logging
Implementation of monitoring solutions using Zabbix, Prometheus, Grafana, and ELK Stack
CI/CD Pipeline Development
Building and maintaining continuous integration and deployment pipelines using GitHub Actions, Jenkins, and Docker Compose
Expertise in building scalable backend services using Java and Spring Boot with RESTful API design principles
Database Management
Proficiency in working with PostgreSQL, MongoDB, MySQL, MSSQL and Redis for data storage and optimization
DevOps and Cloud Technologies
Experience with Docker, Kubernetes, AWS services, Azure DevOps, and infrastructure automation tools
Microservices Architecture
Implementation of microservice architectures with service discovery, load balancing, and health checks
Message Brokers
Experience with RabbitMQ and Apache Kafka for asynchronous communication and event-driven architecture
Security Implementation
Design and implementation of authentication and authorization systems using Spring Security and JWT
Testing and Quality Assurance
Automated testing with JUnit, Mockito, Postman, and Selenium for comprehensive test coverage
Monitoring and Logging
Implementation of monitoring solutions using Zabbix, Prometheus, Grafana, and ELK Stack
CI/CD Pipeline Development
Building and maintaining continuous integration and deployment pipelines using GitHub Actions, Jenkins, and Docker Compose
Experience
Professional experience0 - 5 years
Freelancer since2022
Languages
EnglishFluentRussianFluent
Project history
Developed and maintained scalable backend services using Java and Spring Boot, implemented secure authentication systems, integrated databases, built asynchronous communication pipelines, and deployed microservices to AWS
Developed custom Zabbix actions and triggers, built cluster dashboards in Grafana, automated infrastructure tasks using Ansible and Terraform, and maintained cloud infrastructure using AWS