NEORIS is a Digital Accelerator that helps companies move into the future, leveraging 20 years of experience as Digital Partners to some of the world’s largest organizations. We have more than 4,000 professionals across 11 countries, with a multicultural startup culture where we foster innovation and continuous learning to create high-value solutions for our clients.

oWe are looking for aSenior Back-End Developer with strong Java expertise to join our engineering team and play a key role in designing, building, and scaling our enterprise backend systems. You will architect and deliver high-performance APIs and data-intensive services that power our applications, working within a modern cloud-native stack built on GCP.
You will work across multiple Java versions, with a strong preference for and expertise in Java 21 including modern language features such as Virtual Threads (Project Loom), Sequenced Collections, Record Patterns, and Pattern Matching. You will collaborate closely with front-end engineers, data engineers, and product teams to deliver robust, secure, and maintainable solutions in a fast-paced Agile environment.
Core technologies: Java 7–21 · Spring Boot · PostgreSQL · GCP · OAuth2 · OpenAPI · Docker · SAP integrations · Google BigQuery

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.

Marina Molina

#LI-MM3

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