Senior Backend Engineer
- Location
- Romania
- Desired Salary
- 35 - USD/hourly
- Work preference
- Full Time
- Links
- Not set
- Joined
- 29 Jun 2026
- Field / Industry
- Software Engineering
About Me
I am a Senior Backend Engineer with more than 10 years of experience building production-grade systems, APIs, and scalable backend platforms. My background is centered on Java, Spring Boot, PostgreSQL, AWS, Kubernetes, and CI/CD automation, with a strong focus on reliability, performance, and secure delivery.
I have worked on global platforms and high-traffic products, designing and implementing microservices, event-driven pipelines, and multi-tenant systems. I enjoy solving complex backend problems and building architectures that can scale while remaining maintainable and observable.
In recent roles, I have built autonomous agent systems, workflow automation, and backend services for AI, fintech, and developer-focused platforms. I have also improved data ingestion, query performance, and deployment automation, helping teams ship faster and reduce operational bottlenecks.
My experience includes working with technologies such as Java 17/21, Spring Boot 3.x, PostgreSQL, Elasticsearch, Kafka, RabbitMQ, Docker, Kubernetes, GitLab CI, GitHub Actions, Prometheus, Grafana, and Datadog. I am comfortable working across the full backend lifecycle, from system design and implementation to testing, monitoring, and production support.
I value clean architecture, domain-driven design, and strong engineering practices such as TDD, code reviews, and automated testing. I have mentored junior engineers and collaborated closely with product, data science, and frontend teams to translate requirements into robust technical solutions.
I am based in Romania and speak English natively. I am looking for backend engineering opportunities where I can contribute to scalable systems, automation, and high-quality software delivery.
Skills
AWSKubernetesJavaDockerCI CDAutomationPostgreSQLKafkaMicroservicesMongoDBTestingGrafanaOracleSpring BootJunitTDDHibernate
Education
Bachelor of Science
Brașov, Romania
Experience
Built autonomous agent systems and agentic workflows for an AI data platform connecting enterprise systems to licensed content. Designed end-to-end workflow automation with spec definition, execution planning, and verification loops to ensure data integrity and reliability at scale. Technologies included Java 17, Spring Boot 3.x, PostgreSQL, Docker, Kubernetes, AWS ECS, GitHub Actions, GitLab, JUnit 5, and Testcontainers.
Developed scalable backend services and high-traffic REST APIs for a computer vision platform serving 100,000+ developers globally. Designed and improved agentic job processing workflows, architected Spring Boot microservices using Domain-Driven Design, optimized PostgreSQL and Elasticsearch performance, established observability with Prometheus, Grafana, and Datadog, and implemented CI/CD pipelines with GitHub Actions across AWS ECS and Kubernetes.
Built backend systems and REST APIs for fintech and regulated industry clients at an NLP and AI company. Designed Spring Boot microservices connecting AI components to client systems while maintaining security and compliance requirements. Technologies included Java 17, Spring Boot, PostgreSQL, Oracle, Kafka, ActiveMQ, Docker, Kubernetes, GitLab CI, JUnit 5, Mockito, and Cucumber.
Developed backend services for an enterprise conversational AI platform automating customer service interactions across channels. Built REST API integrations and event processing pipelines for enterprise clients across multiple industries using Java 17, Spring Boot, RabbitMQ, JMS, PostgreSQL, MongoDB, Docker, Jenkins, and JUnit 5.
Implemented backend features in Java and Spring Boot for a software studio building custom products for startups and SME clients. Built Spring WebFlux reactive endpoints, test suites with JUnit 5 and Testcontainers, GitLab CI/CD pipelines, event-driven messaging with Kafka and ActiveMQ, and optimized Oracle and PostgreSQL queries.