Back End Developer

Position: Backend Senior Developer

Location: Barcelona, Spain - Hybrid work

Job Type: Contract

Responsibilities:

• Develop, maintain, and optimize APIs and microservices using Java/SpringBoot to support critical business functions.
• Participate in the full software development lifecycle, providing support and expertise across all stages from design and development to testing, deployment, and operational support.
• Collaborate with Ops, Dev, and Test Engineers to proactively identify and resolve operational issues related to performance, monitoring, alerting, design defects, and other factors at all stages of the product or service lifecycle.
• Partner with other engineers, scrum masters, business and product analysts, and stakeholders to understand requirements, contribute to architectural decisions, and drive the evolution of our software products.

Required Skills:

• Proven experience in engineering and delivering software products.
• Deep knowledge and extensive development experience with Java, Spring Boot, APIs, and microservices architectures.
• Strong understanding of cloud environments, particularly AWS, with experience in technologies such as Lambda, EKS, and ECS.
• Solid experience in designing complex data models for relational and/or NoSQL databases.
• Hands-on experience with NoSQL databases such as MongoDB or DocumentDB.
• Experience with build and infrastructure tools, including Docker and Kubernetes, for containerization and orchestration.
• Strong understanding of OAUTH, JWT, and other security implementations for securing APIs and microservices.
• Proficiency with Git for version control and collaborative development, including experience with CI/CD pipelines.
• Solid understanding of RESTful API principles and experience designing and implementing RESTful APIs.
• Familiarity with code quality tools like SonarQube for continuous code inspection and quality assurance.
• Demonstrated ability to collaborate effectively across multiple engineering teams in multiple geographies.
• Proven ability to influence stakeholders convincingly with well-considered logic and technical expertise.
• Strong advocate for code quality and a champion for writing testable and well-documented code.
• Working knowledge of agile project management methodologies and experience using Jira and Confluence for tracking and collaboration.

Desirable Skills:

• While the core focus is on Java/Spring Boot back-end development, experience with Python is highly desirable.