I will debug and fix ruby on rails bugs, API and database errors


About this gig
Are you facing bugs, errors, or unexpected behavior in your Ruby on Rails application?
I am a Ruby on Rails Backend Developer with 3+ years of experience building, maintaining, debugging, and optimizing production applications.
I can help you with:
- Ruby on Rails bugs and backend errors
- Controller, model, and validation issues
- ActiveRecord and PostgreSQL query problems
- REST API bugs and third-party integrations
- Sidekiq and background job issues
- Slow queries and performance problems
- N+1 queries and database optimization
- Deployment and server errors
- Authentication and authorization issues
- Existing Rails application troubleshooting
I focus on identifying the root cause of the problem and providing a clean, maintainable solution instead of applying temporary fixes.
Please contact me before placing an order so I can review the issue and recommend the right package.
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Get to know Mubasher Khan
Ruby on Rails Backend Developer APIs PostgreSQL AWS
- FromPakistan
- Member sinceFeb 2020
- Avg. response time1 hour
- Last delivery3 years
Languages
Pashto, English, Urdu
FAQ
Should I contact you before placing an order?
Yes. Please contact me first with details about the issue, error message, expected behavior, and relevant code or logs. I can then review the problem and recommend the appropriate package.
What Ruby on Rails issues can you fix?
I can troubleshoot Rails backend errors, controllers, models, validations, ActiveRecord queries, REST APIs, PostgreSQL issues, background jobs, authentication, authorization, integrations, and performance problems.
What information do you need to investigate a bug?
Please provide the error message, relevant logs, steps to reproduce the problem, Rails/Ruby versions, expected behavior, and access to the relevant code if required.
Can you work on an existing Ruby on Rails application?
Yes. Most of my work involves understanding existing Rails applications, identifying the root cause of problems, and implementing clean fixes without unnecessarily rewriting the application.
Can you optimize a slow Ruby on Rails application?
Yes. I can investigate slow ActiveRecord queries, N+1 queries, database bottlenecks, inefficient code, and other Rails performance issues.

