Ruby on Rails Backend Developer (AI-Native) - 100% Remote

Hyly.AI is a leader in the multifamily industry, offering an Intelligence Fabric™ that seamlessly integrates Artificial, Business, and Human Intelligence into one powerful system aimed at driving operational growth. Since its founding in 2010, Hyly.AI has specialized in transforming complex data into actionable insights, enabling scalable operations without the need for additional resources. Trusted by four of the top five NMHC managers, the company empowers teams to focus on building meaningful communities by automating repetitive and manual tasks.

The Ruby on Rails Backend Developer will be responsible for designing, building, and maintaining backend services and APIs that support Hyly.AI’s products tailored for the multifamily sector. This role involves developing REST and GraphQL APIs, modeling data efficiently in PostgreSQL, managing background processing at scale, and ensuring production systems remain fast and reliable. The developer will work in an AI-first environment, leveraging AI coding agents and reusable workflows daily to enhance productivity without compromising code quality.

Key Responsibilities:
- Design, develop, and maintain REST and GraphQL APIs using Ruby on Rails.
- Model data and write optimized PostgreSQL queries, create indexes, and manage safe database migrations.
- Identify and resolve performance issues such as N+1 queries, slow endpoints, and resource-heavy jobs.
- Build and maintain reliable background processing systems with Sidekiq, ensuring retries, idempotency, and monitoring are in place.
- Utilize AI coding agents (e.g., Claude Code, Cursor, Copilot) daily for coding, testing, refactoring, debugging, and code reviews, verifying AI-generated outputs thoroughly.
- Develop and improve reusable AI skills, prompts, and agent workflows to accelerate team productivity, including automated test generation, pull request checklists, migration safety checks, and log triage.
- Write well-tested code using RSpec and request specs, and actively participate in code reviews.
- Collaborate with front-end developers, product managers, and QA teams to define clear API contracts.
- Monitor production system health, investigate incidents, and deploy timely fixes.
- Document APIs and technical decisions clearly to support a distributed team environment.

Required Qualifications:
- 3 to 5 years of professional backend development experience, with at least 3 years focused on Ruby on Rails.
- Strong expertise in building JSON APIs, with REST experience mandatory and GraphQL as a plus.
- Proficient in PostgreSQL, including query design, indexing, and performance analysis using EXPLAIN/ANALYZE.
- Solid testing skills using RSpec or Minitest frameworks.
- Hands-on, daily use of AI coding tools in a professional setting, with the ability to critically review, test, and correct AI-generated code.
- Comfortable working with Git, pull-request workflows, and continuous integration pipelines.
- Ability to work fully remote and communicate effectively in an asynchronous environment.

Preferred Qualifications:
- Experience creating reusable AI skills, prompt templates, or agent workflows specifically for engineering tasks such as test generation, pull request review, and code refactoring.
- Familiarity with MCP servers or integrating AI agents with developer tools like GitHub, databases, logs, and ticketing systems.
- Experience using AI tools for debugging, log analysis, and incident triage.
- Knowledge of Redis caching and background job processing at scale using Sidekiq or Resque.
- Experience with observability and monitoring tools such as Datadog, New Relic, or Sentry.
- Understanding of containerization (Docker), CI/CD pipelines (GitHub Actions), and cloud platforms including AWS and GCP.

Hyly.AI offers a dynamic, fully remote work environment where innovation and collaboration are encouraged. The role provides an opportunity to work at the intersection of AI and backend development, contributing to cutting-edge solutions that transform the multifamily industry.