Senior Java Backend Engineer - Scalable Microservices, La Plata

As a Senior Java Software Engineer at Somnio Software, you'll be the backbone of robust, scalable backend systems that power our clients' most critical applications.
You'll work alongside a talented team, using proven and cutting-edge Java technologies to bring innovative enterprise projects to life.
Your role will be dynamic and impactful.
You will be a key player in the architecture, development, and maintenance of high-performance software solutions, contributing your expertise across the full backend stack in a fast-paced, collaborative environment
Job requirements
Architect, design, and develop scalable, high-performance backend systems and microservices using Java.
Translate complex business requirements and technical specifications into clean, maintainable, production-ready code.
Ensure the performance, reliability, and security of backend services across distributed architectures.
Implement clean architecture and design patterns (e.g., SOLID, DDD, Hexagonal Architecture) and write comprehensive unit, integration, and end-to-end tests.
Integrate effectively with databases, message brokers, and third-party APIs and services.
Lead and participate in code reviews, defining and enforcing coding standards and best practices across the team.
Troubleshoot, debug, and optimize application performance in production environments.
Stay current with the latest Java ecosystem features, frameworks, and industry best practices.
Collaborate closely with frontend teams, architects, and product stakeholders to deliver end-to-end solutions.
Our Perfect Match
6+ years of professional experience in backend software development, with strong focus on Java.
Deep expertise in Java (11, 17, or 21) and object-oriented design principles.
Proven hands-on experience with major Java frameworks: Spring Boot, Spring Framework, Spring Security, and Spring Data
Solid experience designing and building RESTful APIs and microservices architectures
Strong knowledge of relational databases (PostgreSQL, MySQL) and ORM tools (Hibernate/JPA).
Experience with messaging/event-driven systems (Apache Kafka, RabbitMQ, or similar)
Proficiency with containerization and orchestration tools (Docker, Kubernetes)
Solid grasp of version control systems, especially Git and branching strategies (GitFlow, trunk-based)
Demonstrated ability to lead technical decisions, mentor junior developers, and contribute independently at a senior level.
Comfortable working in Agile/Scrum environments with cross-functional teams
Nice to Have
Experience with cloud platforms (AWS, GCP, or Azure) and their managed services (Lambda, S3, RDS, etc).
Familiarity with reactive programming frameworks such as Project Reactor or RxJava (Spring WebFlux).
Knowledge of CI/CD pipelines (GitHub Actions, Jenkins, GitLab CI) and DevOps practi
Experience with NoSQL databases (MongoDB, Redis, Elasticsearch)
Background in performance profiling and tuning of JVM-based applications.
Exposure to GraphQL or gRPC for API design.
Certifications in Java (Oracle Certified Professional) or cloud platforms are a plus.
#J-*****-Ljbffr