02/26/2026 updated

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Senior Java Developer with Banking and Fintech Expertise

Iasi, Romania
Only remote
Bachelor Degree Studies Computer Science
Iasi, Romania
Only remote
Bachelor Degree Studies Computer Science

Profile attachments

Florin_Cernat_CV.pdf

About me

I'm a Senior Java Developer with 9 years of experience in banking, fintech, and healthcare — industries where reliability isn't optional. I worked with clients across Europe building cloud-native microservices, fraud detection pipelines, automation frameworks, and integrating complex payment systems

Java (Programming Language)Apache ActiveMQApplication Programming Interfaces (APIs)Artificial IntelligenceAmazon Web ServicesTest AutomationMicrosoft AzureBankingCloud ComputingDatabasesSoftware Design PatternsDevOpsWeb DevelopmentSpring FrameworkJUnitPostgreSQLLiquibaseMongoDBMySQLOracle ApplicationsQuality ManagementQueueing SystemsMockitoSwaggerResponsive Web DesignSeleniumTesting StrategiesTypeScriptSoftware VersioningOpenapiTestingEnterprise Application PlatformReact.jsEvent Driven ArchitectureContainerizationAngularJSApache KafkaFront End Software DevelopmentFintechRestful ApiCucumber (Software)Database AdministrationAtlassian BambooDockerJenkinsMicroservices
Java Development
Advanced Java programming with 9 years of experience across multiple versions including Java 8/11/17/25, Spring Framework ecosystem, and enterprise application development

Cloud and DevOps Technologies
Comprehensive cloud infrastructure management using AWS and Azure platforms, containerization with Docker, CI/CD pipelines with Jenkins and Azure Pipelines

Microservices Architecture
Design and implementation of scalable microservices systems, RESTful APIs, event-driven architecture, and domain-driven design patterns

Database Management
Expertise in multiple database technologies including MySQL, MongoDB, PostgreSQL, Oracle, and Liquibase for database versioning

Testing and Quality Assurance
Comprehensive testing strategies using JUnit, Mockito, Wiremock, Selenium, and Cucumber BDD for automated testing frameworks

Frontend Technologies
Modern web development using React, Angular, TypeScript, and responsive design principles

Message Queue Systems
Implementation of asynchronous communication using Kafka, ActiveMQ, and Swagger OpenAPI for API documentation

AI-Assisted Development
Integration of AI tools including Claude Code and Antigravity for enhanced development productivity

Experience

Professional experience5 - 10 years
Freelancer since2024

Languages

EnglishFluent

Project history

Freelance Java Automation Developer & SCRUM Master

Eficient Technology SRL
Working for European Commission platform enabling secure document exchanges between multiple parties. Developed automation testing framework for REST APIs and stress test applications using Java Virtual Threads.

Senior Java Developer

OceanoBe SRL
Worked on leading European B2C Banking Application, cloud migration, Garmin Pay integration, AliasPay payment method implementation, and fraud detection system development.

Senior Java Developer (Tech Lead)

The Biggest Fintech Banking App in UAE
Led project handover, implemented document renewal and SMS unlock functionalities, documented microservices, and improved system performance and reliability by 60%.

Senior Java Developer (Tech Lead)

Fintech Startup in London
Developed Payment Aggregator App working with Product Owner and Architect, implemented Spring Boot Microservices, and secured over 5 million pounds of VC funding.

Full Stack Java Developer

One of the biggest banks in Italy
Created backbone application for Market Risk Management project, developed generic backend components and Spring Integration test framework.

Full Stack Java Developer

One of the biggest Healthcare software producers worldwide
Refactored components and tackled performance issues, developed backend for appointments and billing, contributed to frontend redesign using Angular and NgRx store.

Java Developer

Unicredit Bank
Developed Adapter application using Spring Boot for Ebanking System, created APIs for organizational management, and implemented synchronization services using ActiveMq.

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