Senior Back-End Developer

Senior Back-End Developer

Key Responsibilities

• Design, build, and maintain scalable, high-performance backend applications and APIs following RESTful principles and OpenAPI specification standards.

• Implement and manage secure authentication and authorization flows using OAuth2 and related protocols.

• Develop and optimize Spring Boot-based services and microservices, ensuring reliability, maintainability, and performance at scale.

• Work proficiently across multiple Java versions (8, 11, 17, 21), while advocating for incremental migration toward Java 21 and its modern capabilities.

• Write and optimize complex SQL queries and manage relational database schemas using PostgreSQL.

• Build and maintain GCP-based cloud solutions, leveraging GCP-native services and infrastructure to ensure scalability and resilience.

• Collaborate with data engineers on BigQuery and GCP data pipeline integrations, supporting data-driven product features.

• Implement monitoring, alerting, and observability strategies for API-driven architectures to ensure system health and rapid incident response.

• Contribute to CI/CD pipelines and DevOps practices, including Jenkins and automated testing workflows.

• Collaborate with cross-functional teams in an Agile/Scrum or Kanban environment, participating in sprint planning, code reviews, and retrospectives.

• Required Qualifications

• 6+ years of professional experience in backend development, with a track record of building scalable, production-grade applications.

• Deep expertise in Java, with hands-on experience across multiple versions (7, 8, 11, 17, and 21) and a strong command of Java 21 LTS features including Virtual Threads, Record Patterns, and Pattern Matching for switch.

• Hands-on experience with Spring Boot and the broader Spring ecosystem (Spring Security, Spring Data, Spring Cloud).

• Proven experience designing and building high-performance REST APIs, with strong knowledge of the OpenAPI specification.

• Hands-on experience implementing OAuth2 authentication and authorization patterns.

• Solid proficiency with SQL and direct experience working with PostgreSQL in a production environment.

• 3+ years of hands-on experience with GCP cloud technologies, including designing and delivering GCP-based solutions.

• Strong understanding of microservices architecture and distributed systems design principles.

• Excellent problem-solving, analytical, and communication skills.

• Preferred Qualifications

• Experience integrating backend systems with SAP platforms, including familiarity with SAP APIs or SAP data models.

• Experience with Big Data technologies on GCP, including BigQuery and Apache Beam.

• Hands-on experience with Docker containers and cloud-ready, containerized development practices.

• Experience in Data Modeling, including relational and analytical data model design.

• Proficiency with automation and scripting, preferably using Python.

• Experience working with Continuous Integration systems and CI/CD tooling such as Jenkins.

• Familiarity with Alerts and Monitoring strategies for API-driven architectures (e.g., Cloud Monitoring, Prometheus, Grafana).

• Experience across the full software development lifecycle, including requirements, design, delivery, and post-production support.

• We offer

• Professional growth

• Dynamic work environment

• Competitive salary

• Attractive benefits plan

• Benefits of law and superiors

• Development opportunities

• Come and meet us on: http://www.neoris.com, on Facebook, LinkedIn, Twitter, or Instagram @NEORIS.