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Fullstack Backend Developer — Architecture, Authentication

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Fullstack Backend Developer focusing on Architecture working with critical applications for the IT industry. Engaging in challenging projects with a multinational team and remote work setup.

Posted 7/10/2026full-timeRemote • 🇧🇷 BrazilMid-LevelSeniorWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in backend and fullstack development, focusing on scalable architectures and secure authentication solutions. Proficient in developing APIs and integrations while ensuring adherence to best practices in security and quality.

Highest-signal resume keywords
Backend Development with .NETMicroservices ArchitectureAuthentication and Authorization (OAuth2, OpenID Connect, JWT)Kubernetes and DockerExperience in the Insurance Sector

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills
Backend DevelopmentMicroservicesREST APIsDesign PatternsSOLID PrinciplesClean ArchitectureRelational DatabasesNon-Relational DatabasesCI/CD PipelinesEvent-Driven Architecture
Tools & Technologies
AzureAzure ADKeycloakAuth0
Industry Keywords
Insurance Sector

Tech Stack

Tools & technologies
AzureDockerKubernetes.NET

About the role

Key responsibilities & impact
  • Work on backend and fullstack development of critical applications.
  • Define scalable, secure, and highly available architectures.
  • Design and implement authentication and authorization solutions.
  • Participate in technical decisions and support the evolution of system architectures.
  • Develop APIs and integrations with internal and external systems.
  • Ensure best practices for security, quality, and observability.

Requirements

What you’ll need
  • Strong experience in backend development with .NET.
  • Experience with software architecture, microservices, and REST APIs.
  • Experience with authentication and authorization (OAuth2, OpenID Connect, JWT, SSO, identity providers).
  • Knowledge of Design Patterns, SOLID principles, and Clean Architecture.
  • Experience with relational and non-relational databases.
  • Knowledge of CI/CD pipelines.
  • Knowledge of Azure.
  • Experience with Azure AD, Keycloak, Auth0, or similar solutions.
  • Knowledge of event-driven architecture.
  • Experience with Kubernetes and Docker.
  • Experience working in the insurance sector.

Benefits

Comp & perks
  • Cutting-edge environment / Innovation in the DNA – Challenging projects alongside qualified specialists.
  • Ongoing training – Discounts and partnerships with top universities and tech platforms in Brazil.
  • Language support – Special conditions on language learning platforms.
  • Remote work.