Senior Backend (Spring) Developer

📍SaphirePosition OverviewSaphire Consulting is seeking an experienced Senior Backend Developer specializing in the Java Spring ecosystem. You will design and build robust, high-performance microservices and APIs that power enterprise solutions for our IT projects.General InformationIndustry: IT & SAP Consulting and Software DevelopmentLocation: Resant Office Center, Narimanov r., Aşıq Molla Cümə küçəsiWork Schedule: Monday – Friday, 09:00 – 18:00Employment: Full-time, On-siteKey ResponsibilitiesArchitect, develop, and maintain scalable backend services using Java and the Spring Framework.Design RESTful and GraphQL APIs consumed by web and mobile frontends.Collaborate with frontend engineers, DevOps, and business analysts to deliver end-to-end features.Optimize database queries and data models for performance and reliability.Ensure code quality through peer code reviews, unit tests, and integration tests.Participate in solution architecture discussions and contribute to technical documentation.Identify and resolve performance bottlenecks, security vulnerabilities, and technical debt.Work within Agile/Scrum teams, contributing to sprint planning and retrospectives.Support junior developers through mentoring and knowledge sharing.Technical RequirementsCore Technologies4+ years of professional backend development experience.3+ years of hands-on experience with Spring Boot and Spring Framework.Strong proficiency in Java (Java 11+), including concurrency and JVM internals.Experience with Spring Security, Spring Data JPA, and Spring Cloud.Deep understanding of microservices architecture and design patterns.Data & PersistenceProficiency with relational databases: PostgreSQL, MySQL, or Oracle.Experience with NoSQL databases such as MongoDB or Redis.Solid understanding of ORM frameworks (Hibernate) and query optimization.Integration & MessagingExperience with message brokers: Apache Kafka, RabbitMQ, or ActiveMQ.Knowledge of SAP integration patterns (RFC, BAPI, IDoc) is a strong plus.Familiarity with OAuth2 / JWT-based authentication and authorization.Tools & DevOpsProficiency with Git and version control workflows.Experience with CI/CD pipelines, Docker, and Kubernetes.Working knowledge of Maven or Gradle build systems.Familiarity with monitoring tools: ELK Stack, Prometheus, Grafana.Non-Technical RequirementsBachelor’s degree in Computer Science, Software Engineering, or equivalent.Analytical thinker with strong debugging and problem-solving capabilities.Ability to translate business requirements into technical specifications.Self-driven professional who takes full ownership of assigned deliverables.Collaborative team member comfortable working across cross-functional teams.How to ApplySend your CV to the e-mail address in the Apply for job button with the subject line: "Senior Backend (Spring) Developer – Application"