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Senior Software Engineer

Inbox Health - Guatemala City, Guatemala - In-office - posted 2026-09-17

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Inbox Health is a venture-backed SaaS startup addressing patient billing challenges in healthcare. The company automates patient billing and payments, modernizes patient support experiences, and provides AI-powered support through phone and live chat. Inbox Health serves over 3,400 healthcare practices and 4 million patients annually and was recently named to the Inc. 5000 list of fastest-growing private companies. You will join the engineering team to scale and enhance AI offerings, focusing on creating new AI features and enhancing existing ones. The role emphasizes full-stack development with Ruby on Rails backend and React frontend, with significant work integrating LLM APIs. Key responsibilities include: - Writing clean, high-quality, maintainable code and designing REST API resources consumed by partners and client applications - Designing and implementing REST API resources, workers, and automated tasks using Ruby on Rails - Working with product teams to determine performant software design patterns and converting specifications into actionable tasks - Handling complex data modeling and performance testing for systems processing thousands of requests per second - Writing complex SQL queries for PostgreSQL and unit tests in RSpec - Debugging production issues across services and the full stack - Creating user interfaces using modern best practices and toolsets - Mentoring and pairing with team members - Coordinating cross-functionally to ensure projects meet business objectives and compliance standards - Supporting test and deployment of products and features Requirements: - 4+ years of professional software engineering experience - Proficiency with Ruby programming language and Ruby on Rails framework - Strong understanding of JavaScript and front-end development in Single-Page Application frameworks (React preferred) - Experience with LLM APIs - Proficiency with database and code modeling - Strong debugging skills - Experience with Agile or Scrum methodologies - Ability to multi-task, organize, and prioritize work - Excellent written and verbal communication skills in English - Must reside in Guatemala with ability to travel to Guatemala City as needed

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