Jobs Companies Walter Full-stack developer (Ruby/React)

About this Full-stack developer (Ruby/React) role at Walter

Walter · United States

[Summary]
A leading collaborative design platform is seeking an experienced backend-focused engineer to enhance and evolve an integration-driven application. The project is centered on building and maintaining robust integrations using Ruby on Rails and TypeScript, with a strong emphasis on designing, implementing, and scaling connections with third-party systems.

The role will contribute to improving reliability, extensibility, and overall integration architecture across the platform.

[General information]
They are looking for a senior-level engineer with strong experience in Ruby on Rails and TypeScript, and a proven background in building and maintaining complex integrations. The ideal candidate is comfortable working with multiple external APIs, designing integration workflows, and collaborating closely with product and engineering teams.

[Task and Deliverables]

  • Design, develop, and maintain backend services using Ruby on Rails to support integrations.
  • Build and extend integration logic using TypeScript, ensuring reliability and scalability.
  • Integrate the platform with third-party APIs and external systems.
  • Collaborate with internal teams to define integration requirements and technical solutions.
  • Improve existing integration architecture with a focus on maintainability, performance, and observability.
  • Document integration flows and provide technical recommendations for future improvements.
  • [Engagement highlights]
  • Opportunity to work on high-impact integrations used by thousands of end users.

  • Collaborative environment with experienced engineers.

  • Potential for long-term collaboration based on performance and project outcomes.

Requirements

[Required Experience]

  • Strong experience with Ruby on Rails in production environments.

  • Experience with TypeScript.

  • Proven background building and maintaining integrations with third-party APIs.

  • Solid understanding of RESTful APIs, webhooks, and asynchronous workflows.

  • Experience working in collaborative, cross-functional engineering teams.

  • Experience integrating identity services, especially using OAuth.

[Nice to have]

  • Hands-on experience with Google APIs (Calendar, Chat, etc.) and app integrations.

  • Familiarity with MCP (Model Context Protocol).

  • Prior experience building integrations for SaaS or productivity tools.


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