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Full-Stack Engineer (Backend)

1 month, 1 week ago
Mexico, Argentina, Brazil, Colombia, Costa Rica
Full-time
Senior
Full-stack Engineer
Software Development
ActiveRecord Docker Git HTTP JWT PostgreSQL React Redis REST API RSpec Ruby Ruby on Rails Sidekiq Tailwind CSS TypeScript WebSockets
Apply Now
Zipdev

Zipdev

Zipdev specializes in connecting businesses with highly skilled remote talent from Latin America, offering a cost-effective solution for hiring software developers and virtual assistants.

Professional Services
51-250
Founded 2014
View All Jobs 15

Description

  • Design, build, and maintain the Rails API that serves dental scheduling data to the React frontend.
  • Model, evolve, and maintain PostgreSQL schemas using ActiveRecord migrations on Azure PostgreSQL Hyperscale (Citus).
  • Own data mapping across dental practice management systems and the Cosmos DB data layer.
  • Query, consume, and structure data from Azure Cosmos DB for application use.
  • Design and maintain distributed application schemas using colocation and distributed tables for scale.
  • Integrate with external healthcare systems and services over HTTP, including dental exchange APIs, payment processors, and Azure AI services.
  • Implement and maintain Azure AD B2C JWT authentication middleware with JWKS validation and claim extraction.
  • Build and operate background jobs using Sidekiq and Redis for asynchronous processing.
  • Write and maintain RSpec test suites with FactoryBot, WebMock, and VCR for safe integration testing.
  • Contribute to React frontend components and pages as needed.
  • Collaborate with engineers and product stakeholders during feature development and ongoing product evolution.
  • Review AI-generated code, follow Git practices, and update documentation when behavior or architecture changes.

Requirements

  • Strong experience with Ruby on Rails in API-only mode, including ActiveRecord, migrations, routing, and middleware.
  • Solid PostgreSQL knowledge, including schema design and query awareness.
  • Comfort working with both relational and NoSQL document databases.
  • Experience designing REST APIs and integrating with external services via HTTP clients such as Typhoeus or Faraday.
  • Hands-on experience with background job processing such as Sidekiq or equivalent.
  • Experience implementing JWT-based authentication, including JWKS validation and claim extraction.
  • Proven RSpec testing discipline with FactoryBot and HTTP stubbing using WebMock or VCR.
  • Working knowledge of a modern frontend framework such as React or Vue.
  • Familiarity with Git-based workflows, pull requests, and conventional commits.
  • Comfort reading and maintaining Markdown documentation.
  • Hands-on experience using AI coding assistants such as Claude Code, GitHub Copilot, or Cursor in daily development.
  • Understanding of the Human → AI → Human review loop with human ownership of all decisions.
  • Ability to maintain supporting documentation such as READMEs, architecture notes, and AI configuration files like CLAUDE.md.
  • Awareness of AI traceability practices, including commit trailers, review checklists, and prompt hygiene.
  • Strong understanding that PHI must never appear in code, tests, logs, commits, or error messages.
  • Discipline around structured logging with explicit safe-field selection.
  • Use of generic error messages with no patient-identifying context returned to API clients.
  • Comfort working exclusively with synthetic or mock data.
  • Awareness of secure coding practices, including no hardcoded credentials, OWASP Top 10 vigilance, and blocking remediation of Brakeman findings.
  • Experience with Kamal-based deployments and containerized production workflows is preferred.
  • Familiarity with ActionCable or other WebSocket-based real-time features is preferred.
  • Healthcare or dental domain experience is preferred.
  • Prior experience with dental practice management system data models or healthcare data normalization is preferred.
  • Experience with Azure Cosmos DB, including SQL API, partition key strategy, and document modeling, is preferred.
  • Familiarity with Azure PostgreSQL Hyperscale (Citus) or other distributed PostgreSQL solutions is preferred.
  • Hands-on experience with Azure AD B2C JWT validation is preferred.
  • Experience with Jbuilder or alternative Rails JSON serialization approaches is preferred.
  • Experience with Azure AI services such as Azure AI Speech or Azure OpenAI is preferred.
  • Familiarity with healthcare data exchange standards or payment processing APIs is preferred.
  • Working knowledge of React and TypeScript for frontend contributions is preferred.

Benefits

  • Work remotely Monday through Friday, 40 hours a week, with no weekends.
  • Health Care Reimbursement.
  • Active Lifestyle Reimbursement.
  • Quarterly Home Office Reimbursement.
  • Continuous Learning Bonus.
  • Access to training and professional development platforms.
  • Remote-first work environment.

Interested in this position?

Apply directly on the company website

Apply Now

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