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Full Stack Developer

Cognine

On-site
Hyderabad, India
Full-time
Mid Level
4+ yrs
Salary not listedPosted 42m ago

Real job — pulled straight from Cognine’s careers page · Verified November 13, 2026 · No reposts.

Job description

Cognine is hiring a Full Stack Developer — a full-time, based in Hyderabad, India role. Apply directly on Cognine's careers page below.

Full Stack Developer - Ruby on Rails

Location: Hyderabad, India

Department: Delivery

Experience: 5-6

Key Responsibilities:
  • Design, develop, and maintain scalable, secure, and high-performance applications using Ruby on Rails, MVC architecture, and ORM.
  • Develop RESTful APIs, backend services, and third-party integrations, including Stripe, Auth0, and FusionAuth.
  • Build and maintain automated test suites using RSpec (mandatory) and Cucumber.
  • Develop new frontend features using React and maintain existing applications built with Backbone.js and Marionette.js.
  • Implement background job processing using Sidekiq and optimize application performance through Redis/Memcached caching.
  • Design and optimize relational databases such as PostgreSQL ensuring performance and data integrity.
  • Troubleshoot application issues, remediate security vulnerabilities, and maintain code quality through best practices and CI/CD pipelines.
  • Enhance browser extensions, including password autofill and authentication capabilities.
  • Contribute to AI-enabled features, CLI tools, desktop applications, and React Native mobile enhancements.
  • Support SOC 2 compliance requirements, security reviews, and technical audits.

Required Skills & Qualifications:
  • 4–5 years of hands-on experience in Ruby on Rails development, including strong expertise in RSpec testing.
  • 3+ years of experience with JavaScript frameworks, particularly Backbone.js, Marionette.js or similar agent-led framework, and React library.
  • Strong proficiency in HTML5, CSS3, JavaScript (ES6+), and frontend integration with Rails applications.
  • Experience with ActiveRecord ORM, PostgreSQL, RESTful APIs, and database optimization.
  • Hands-on experience with Sidekiq, Redis, and third-party authentication/payment integrations.
  • Experience with GitHub Actions, CI/CD pipelines, debugging, and performance optimization.
  • Good understanding of application security, secure coding practices, and automated testing.

Good to Have:
  • Experience with Cucumber and behavior-driven development (BDD).
  • Exposure to React Native, browser extension development, and desktop applications.
  • Familiarity with AI integrations, CLI development, and SOC 2 compliance.
  • Knowledge of Redis Cache and application profiling tools.
  • Knowledge of React Native, CodeRabbit, build.io hosting, Sendgrid and Astro marketing site.

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Frequently asked questions

What skills are required for Full Stack Developer at Cognine?

The required skills for Full Stack Developer at Cognine include: Ruby on Rails, REST, JavaScript, React, Redis, PostgreSQL, CI/CD, GitHub Actions, HTML, CSS, SOC 2, React Native.

What is the seniority level for Full Stack Developer at Cognine?

Full Stack Developer at Cognine is a Mid Level level position.

How do I apply for Full Stack Developer at Cognine?

You can view the full description and apply for Full Stack Developer at Cognine on EchoJobs: https://echojobs.io/job/cognine-full-stack-developer-ruby-on-rails-z7e38.