Job Summary: We are seeking a Java Backend Developer (Semisr – Senior) to design and develop scalable APIs, integrate systems, and implement security and testing. Key Highlights: 1. Scalable backend API design and development 2. Integration with legacy systems and databases 3. Collaboration with cross-functional agile teams Corus Consulting is a consultancy with over 15 years of experience serving clients worldwide; we have a presence in Europe, the United States, Asia, and Mexico. We are currently seeking your talent to join us as: Java Backend Developer – Semisr / Senior: Experience: Bachelor’s degree in Computer Science, Computer Engineering, or related field. 3–5 years of experience as a Senior Backend Developer specializing in designing, developing, and integrating modern APIs, with experience in microservices architectures and distributed systems, participating in high-complexity and high-impact projects. Responsibilities: Development and design of scalable backend APIs. Integration with legacy systems and databases. Implementation of security, versioning, and endpoints. Testing, debugging, and performance optimization. Participation in deployments and solution architecture. Collaboration with cross-functional agile teams. Technical documentation. Essential Skills: Advanced Java, Spring Boot, WebFlux, Quarkus, Apigee, REST APIs, JWT/OAuth, GCP, SQL/NoSQL, messaging systems, Git, Jenkins, SonarQube, banking domain experience (desirable). Work Modality: Hybrid or on-site at Av. Insurgentes Sur, CDMX. Schedule: Monday to Friday, 8 AM to 6 PM We Offer: 100% payroll employment model Statutory benefits: (12 vacation days in the first year, 15-day Christmas bonus, 25% vacation premium, Social Security) Benefits exceeding statutory requirements Training courses and/or certifications Profit-sharing (PTU) payment Career development plan. If you meet the profile, please send your updated CV to the email address provided. -Requirements- Minimum Education: Higher Education – Bachelor’s Degree 3 years of experience Knowledge: Backend, Computer Science, Java Keywords: developer, programmer, senior, sr