Principal Backend Architect / Engineer (C#/.NET, Azure)

Accountabilities:

• • Define backend architecture across products and lead the incremental decomposition and migration of the monolith into well-bounded services using safe, reversible engineering approaches.
  • Establish and enforce backend engineering standards, shared libraries, service templates, API contracts, versioning practices, and backward compatibility principles.
  • Design and guide event-driven architectures using Azure Service Bus, including delivery guarantees, retries, idempotency, failure handling, and poison-message management.
  • Partner closely with the Data Architect on transactional boundaries, data-access models, query performance, and integrations with customers and external partners.
  • Lead by example in the daily use of agentic AI development tools and help elevate the team's technical practices and capabilities.
  • Create Architecture Decision Records (ADRs), conduct reviews of critical pull requests, mentor engineers, contribute to incident response, and participate in quarterly technical planning.

  Requirements:

  • 10+ years of backend development or software engineering experience, including several years in formal architecture or technical leadership roles.
  • Deep expertise in C#/.NET with strong hands-on experience working with Azure, particularly Azure Functions, Azure Service Bus, and Azure Data Factory.
  • Practical experience with PostgreSQL, Cosmos DB, and Snowflake, as well as CI/CD and DevOps practices.
  • Demonstrated experience incrementally migrating or decomposing monolithic applications, favoring safe and reversible steps over large-scale rewrites.
  • Strong understanding of asynchronous messaging, event-driven systems, idempotency, dead-lettering, and robust API design.
  • Daily, hands-on experience with agentic AI development tools, such as Claude, Claude Code, or similar technologies.
  • Experience building with AI, including agents, reusable skills, MCP servers, and evaluation workflows.
  • Strong hands-on engineering mindset: this is not a pure management or theoretical architecture position, and you should remain actively involved in coding and solution development.
  • Strong technical communication, problem-solving, mentoring, and collaboration skills.

  Benefits:

  • Fully remote working arrangement.
  • Remote opportunity within the LatAm region, with the role presented for candidates based in Brazil.
  • Opportunity to shape backend architecture across multiple products and influence major platform evolution.
  • Hands-on work with modern cloud, event-driven architecture, and AI-assisted engineering practices.
  • Technical leadership and mentorship opportunities within a collaborative engineering environment.
  • Exposure to large-scale architectural modernization, data platforms, APIs, and distributed systems.