H

Ruby on Rails Backend Developer

Hyly.AI • Pakistan
Remote
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Design, build and maintain backend services and APIs for Hyly.AI's multifamily products. Build REST and GraphQL APIs, model PostgreSQL data, run background processing, and keep production systems fast and reliable. Requires 3-5 years of backend experience with at least 3 years in Ruby on Rails, strong PostgreSQL and RSpec/Minitest skills, and daily professional use of AI coding tools.

Key Highlights
3-5 years of professional backend development, with at least 3 years in Ruby on Rails
Strong experience building JSON APIs (REST; GraphQL a plus)
Solid PostgreSQL skills: query design, indexing, EXPLAIN/ANALYZE
Strong testing habits with RSpec or Minitest
Hands-on, daily use of AI coding tools in a professional setting
Key Responsibilities
Design, build and maintain REST and GraphQL APIs in Ruby on Rails
Model data and write efficient PostgreSQL queries, indexes and safe migrations
Find and fix performance problems: N+1 queries, slow endpoints, heavy jobs
Build reliable background processing with Sidekiq, including retries, idempotency and monitoring
Use AI coding agents daily for development, testing, refactoring, debugging and code review, and verify their output carefully
Create and improve reusable AI skills, prompts and agent workflows that speed up the team
Write well-tested code (RSpec, request specs) and take part in code reviews
Work with front-end, product and QA teams to define API contracts
Monitor production health, investigate incidents and ship fixes
Document APIs and technical decisions clearly for a distributed team
Technical Skills Required
Ruby on Rails PostgreSQL RSpec
Nice to Have
Experience creating reusable AI skills, prompt templates or agent workflows for engineering tasks
Familiarity with MCP servers or connecting AI agents to dev tools (GitHub, databases, logs, ticketing)
Experience using AI tools for debugging, log analysis and incident triage
Experience with Redis caching and Sidekiq/Resque at scale
Experience with observability tools (Datadog, New Relic, Sentry)
Understanding of Docker, GitHub Actions and cloud platforms (AWS, GCP)

Job Description

Company Description

Hyly.AI is the multifamily industry’s premier Intelligence Fabric™, integrating Artificial, Business, and Human Intelligence into a single system designed to drive operational growth. By transforming raw data into actionable decisions and measurable results, Hyly.AI enables scalable operations without the need for additional resources. Founded in 2010, Hyly.AI has over a decade of experience in simplifying complex processes for multifamily leaders, helping them optimize efficiency and increase ROI. Trusted by 4 out of the top 5 NMHC managers, Hyly.AI empowers teams to focus on building meaningful communities rather than handling repetitive, manual tasks.

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