Develop applications using low-code platforms, following project specifications and requirements;
Perform software development by writing code to build applications, programs, and software systems, according to project specifications and requirements;
Test developed software by identifying and fixing issues, bugs, and code defects, ensuring delivery quality, meeting deadlines, and client (Certsys) satisfaction;
Document developed code to facilitate future maintenance and product updates;
Assist the development team by providing technical guidance and leadership to deliver high-quality solutions;
Develop high-quality software solutions, ensuring code is efficient, scalable, and maintainable;
Research and adopt new technologies to improve software performance and efficiency;
Monitor systems in production to identify issues and implement solutions;
Participate in periodic audits, providing necessary information/evidence as requested by auditors;
Conduct onboarding for new professionals in the area, sharing knowledge about processes, service models, and Certsys standards.

Certification in a programming language (preferred)
Cloud certification (preferred)
Agile methodology certification (preferred)
Language: Java 8–21
Frameworks: Spring Boot, Spring Security, Spring Authorization Server, Apache Camel
SSO & Identity: OAuth2, OpenID Connect, JWT, SAML 2.0, Keycloak, Auth0, Azure Active Directory, Okta
Security: Cryptography, JWK/JWS, HTTPS/TLS, CORS, CSRF, PKCE
Integrations: LDAP, Active Directory, SCIM
Testing: Testcontainers, JUnit, Mockito, integration with security testing
DevOps: Docker, Kubernetes, CI/CD with Jenkins, GitLab, or GitHub Actions
Experience migrating legacy systems to modern architectures with SSO
Direct experience designing and implementing custom Identity Providers and Authorization Servers
Ability to lead teams in defining authentication and security standards in corporate environments
Experience with security compliance such as LGPD and GDPR, applying privacy-by-design principles

Strong company culture
Ongoing training and professional development programs
Commitment to diversity, equity, and inclusion regardless of disability, race/ethnicity, religion, gender, sexual orientation, origin, or family composition

Back-end Developer, Java – Specialist

Key skills