Senior Java Developer Engineer

Alvacore Solutions is looking for an experienced Senior Java Developer Engineer to help design, build and strengthen secure, reliable and long-lived software platforms.

This role is for someone who thinks beyond tickets, challenges weak designs, improves engineering standards and takes ownership of backend architecture, API design, security and production-ready delivery.

You will work on systems where stability, security, auditability and maintainability matter.

What you will do:

• Design and implement robust backend services using Java, Spring Boot, Spring Security and Hibernate/JPA
• Shape backend architecture, service boundaries, API contracts, integration patterns and data models
• Build clean REST APIs with DTOs, validation, error handling, versioning, idempotency and clear status models
• Work with authentication and identity integrations such as JWT, SAML2, Azure AD and ADFS
• Model and optimize PostgreSQL persistence layers, including transactions, constraints, indexes and performance-critical queries
• Contribute to Docker-based delivery, CI/CD pipelines, SonarQube quality gates and production readiness
• Review code, coach developers and help the team make better long-term technical decisions
• Challenge poor designs early and explain technical trade-offs clearly

What we are looking for:

• 7+ years of hands-on Java engineering experience
• Strong experience with Spring Boot and enterprise backend systems
• Solid knowledge of Spring Security, authentication, authorization and secure software design
• Deep practical experience with JPA/Hibernate, PostgreSQL and persistence design
• Strong understanding of REST API design, integration patterns and lifecycle thinking
• Experience working with Docker, Jenkins, GitHub, Harbor or SonarQube
• Ability to design maintainable systems, not just deliver short-term features
• Strong communication skills and a mature, ownership-driven engineering mindset
• Ability to support and guide other developers through code reviews, technical discussions and architectural decisions

Technology stack:

• Backend: Java, Spring Boot, Spring Security, Hibernate/JPA, Maven
• Database: PostgreSQL
• Frontend collaboration: Angular, TypeScript, NPM
• DevOps & Infrastructure: Docker, Jenkins, Harbor, GitHub, SonarQube
• Security & Identity: JWT, SAML2, Azure AD, ADFS

You will enjoy this role if you:

• Like solving complex backend and architecture problems

Senior Java Developer Engineer

Alvacore Solutions is looking for an experienced Senior Java Developer Engineer to help design, build and strengthen secure, reliable and long-lived software platforms.

This role is for someone who thinks beyond tickets, challenges weak designs, improves engineering standards and takes ownership of backend architecture, API design, security and production-ready delivery.

You will work on systems where stability, security, auditability and maintainability matter.

What you will do:

• Design and implement robust backend services using Java, Spring Boot, Spring Security and Hibernate/JPA
• Shape backend architecture, service boundaries, API contracts, integration patterns and data models
• Build clean REST APIs with DTOs, validation, error handling, versioning, idempotency and clear status models
• Work with authentication and identity integrations such as JWT, SAML2, Azure AD and ADFS
• Model and optimize PostgreSQL persistence layers, including transactions, constraints, indexes and performance-critical queries
• Contribute to Docker-based delivery, CI/CD pipelines, SonarQube quality gates and production readiness
• Review code, coach developers and help the team make better long-term technical decisions
• Challenge poor designs early and explain technical trade-offs clearly

What we are looking for:

• 7+ years of hands-on Java engineering experience
• Strong experience with Spring Boot and enterprise backend systems
• Solid knowledge of Spring Security, authentication, authorization and secure software design
• Deep practical experience with JPA/Hibernate, PostgreSQL and persistence design
• Strong understanding of REST API design, integration patterns and lifecycle thinking
• Experience working with Docker, Jenkins, GitHub, Harbor or SonarQube
• Ability to design maintainable systems, not just deliver short-term features
• Strong communication skills and a mature, ownership-driven engineering mindset
• Ability to support and guide other developers through code reviews, technical discussions and architectural decisions

Technology stack:

• Backend: Java, Spring Boot, Spring Security, Hibernate/JPA, Maven
• Database: PostgreSQL
• Frontend collaboration: Angular, TypeScript, NPM
• DevOps & Infrastructure: Docker, Jenkins, Harbor, GitHub, SonarQube
• Security & Identity: JWT, SAML2, Azure AD, ADFS

You will enjoy this role if you:

• Like solving complex backend and architecture problems