Senior/Principal Software Engineer - Ruby on Rails

Creative Chaos; Lahore; Hybrid; PKR 6,963,788 - 13,927,576; Full time

Benefits offered by this job

Paid Time Off

Work From Home

Health Insurance

Training and Development

Life Insurance

Job summary

Creative Chaos is looking for a Senior Software Engineer specializing in Ruby on Rails in Lahore, Pakistan. The ideal candidate will develop server applications, mentor juniors, and optimize performance. Responsibilities include analyzing business needs, leading projects, and ensuring code quality.

Key qualifications entail a BS in Computer Science and 3-8 years of experience in Ruby on Rails and API interfaces. The position offers remote work options and comprehensive health benefits.

Qualifications

• 3-8 years of working experience in Ruby on Rails and its frameworks.
• Extensive experience with gems in the Ruby/Rails ecosystem, especially Devise and Pundit.
• Comfortable implementing testing specs using the RSpec framework.

Responsibilities

• Analyze business requirements and estimate assigned tasks.
• Collaborate with team members and lead a team of software engineers.
• Ensure security and performance of server applications.

Skills

Ruby on Rails

API development

Performance tuning

SQL

Agile methodologies

Mentoring

Cross-functional collaboration

Education

BS degree in Computer Science/Software Engineering

Tools

RSpec

Docker

Kubernetes

Job description

Job Summary A Senior Software Engineer for Ruby on Rails is an associate at Creative Chaos who primarily develops server applications across various software platforms including writing RESTful APIs that are consumed by client applications. The engineer ensures functionality, security and performance of the server application aligns with the design and is completely bug-free. Senior engineers also mentor juniors and strengthen the team through training.

Job Duties And Responsibilities

• Analyze business requirements
• Estimate assigned tasks
• Write code and unit tests
• Collaborate with other team members
• Tune code for enhanced security and performance
• Maintain systems by fixing any existing issues
• Update issue tracking software
• Provide status updates
• Communicate with client
• Control versions of your code
• Research new technologies
• Lead a team of software engineers
• Mentor team members through training and guidance
• Upgrade skills and knowledge
• Evaluate candidates for open positions

Requirements

• BS degree in Computer Science/Software Engineering or similar relevant field
• 3‑8 years of working experience in Ruby on Rails and its frameworks
• Extensive experience working with common gems in the Ruby/Rails ecosystem (Devise and Pundit in particular)
• Experience building large-scale production web applications with API interfaces
• Experience with performance challenges of a production RoR web application (e.g., stress testing and performance tuning)
• Strong understanding of the testing pyramid and comfortable implementing specs in each layer using the RSpec framework
• Ability to work effectively at all levels of the stack (Rails, Ruby, ES6)
• Familiarity with front‑end technologies (JavaScript, CSS and HTML)
• Strong understanding of SQL and experience in writing SQL queries
• Strong experience with CI/CD pipelines, AWS and cloud technologies (including Docker and Kubernetes)
• Experience in Agile development methodologies, including Scrum
• Excellent verbal and written English communication skills
• Excellent problem‑solving and analytical skills

Benefits

• Paid Time Off
• Work From Home
• Health Insurance
• OPD
• Training and Development
• Life Insurance
• Exchange Program