You will get Ruby developer for troubleshooting, fixing bugs and upgrading system
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Top Rated

Project details
Welcome to Dy's Ruby/Rails Solutions Hub! 🚀
About Me:
Hello, I'm Dy, you can call me Jimmy, a dedicated Ruby/Rails developer passionate about enhancing the functionality and performance of web applications through expert bug fixing and improvements.
Services Offered:
Bug Fixing Wizardry 🧙♂️:
Rapid identification and resolution of bugs in Ruby/Rails code.
Proactive troubleshooting to ensure a seamless user experience.
Performance Optimization ⚡:
Fine-tuning your application for optimal speed and efficiency.
Identifying and addressing performance bottlenecks.
Code Refactoring and Enhancement 🛠️:
Elevating code quality for better maintainability.
Implementing improvements to boost overall application robustness.
About Me:
Hello, I'm Dy, you can call me Jimmy, a dedicated Ruby/Rails developer passionate about enhancing the functionality and performance of web applications through expert bug fixing and improvements.
Services Offered:
Bug Fixing Wizardry 🧙♂️:
Rapid identification and resolution of bugs in Ruby/Rails code.
Proactive troubleshooting to ensure a seamless user experience.
Performance Optimization ⚡:
Fine-tuning your application for optimal speed and efficiency.
Identifying and addressing performance bottlenecks.
Code Refactoring and Enhancement 🛠️:
Elevating code quality for better maintainability.
Implementing improvements to boost overall application robustness.
Programming Languages
HTML & CSS, JavaScript, Ruby/Ruby on RailsCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $25
These options are included with the project scope.
$25
- Delivery Time 2 days
- Number of Revisions 1
- Number of Pages 1
- Source Code
Optional add-ons
You can add these on the next page.
Additional Revision
+$10
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About Pham Duy
Web application programmer
100%
Job Success
Da Nang, Vietnam - 6:48 pm local time
For the past 5 years, I have been working at Money Forward, one of Japan's leading fintech companies, where I contribute as a Full-Stack Engineer and a key player in platform engineering initiatives. My responsibilities span application development, cloud infrastructure, CI/CD automation, Kubernetes operations, performance optimization, disaster recovery, observability, and scalable system architecture.
Over the last 2 years, I have also focused heavily on AI-powered solutions, helping clients build applications using OpenAI models, GPTScript, AI agents, workflow automation, and LLM integrations.
My strength is not only building software but also ensuring that systems remain scalable, reliable, observable, and cost-efficient in production environments.
Technical Expertise
Backend Development
• Ruby on Rails
• Node.js / Express
• Python (Flask, Django)
• Go
• Elixir / Phoenix
Frontend Development
• React
• JavaScript / TypeScript
• HTML/CSS
• jQuery
Cloud & Platform Engineering
• AWS
• Kubernetes (EKS)
• Docker
• Terraform
• CI/CD Pipelines
• Infrastructure as Code
• Auto Scaling
• Disaster Recovery
• Performance Optimization
Observability & Reliability
• Datadog (APM, Logs, Dashboards, Monitors, SLOs)
• Grafana
• Rollbar
• Distributed Tracing
• Incident Investigation & Root Cause Analysis
• Production Monitoring
• Capacity Planning
• Cost Optimization
AI Development
• OpenAI API
• GPTScript
• AI Agents
• Prompt Engineering
• Workflow Automation
• LLM Integrations
• RAG-based Applications
What I Can Help With
• Build SaaS products from idea to production
• Modernize and upgrade legacy applications
• Design scalable cloud-native architectures
• Implement Kubernetes and DevOps best practices
• Optimize application performance and infrastructure costs
• Integrate AI capabilities into existing products
• Establish observability and monitoring strategies
• Troubleshoot complex production issues
• Automate development and deployment workflows
Selected Experience
• 10+ years of professional software engineering experience
• 8+ years of Ruby on Rails development
• 5+ years building and operating fintech products at Money Forward Japan
• AWS Certified Developer
• Successfully delivered AI, automation, SaaS, and cloud infrastructure projects for international clients
• Extensive experience working with large-scale production systems and cross-functional engineering teams
One of my key strengths is bridging the gap between software development, cloud infrastructure, and production operations. I enjoy solving challenging technical problems and helping businesses build reliable, scalable, and maintainable systems that can grow with their needs.
If you are looking for an engineer who can contribute across application development, cloud architecture, DevOps, observability, and AI integration, I would be happy to discuss your project.
Steps for completing your project
After purchasing the project, send requirements so Pham Duy can start the project.
Delivery time starts when Pham Duy receives requirements from you.
Pham Duy works on your project following the steps below.
Revisions may occur after the delivery date.
Clarify all input and output needed
I will analyze all of your requirements and then make some diagrams + documents to clarify all confusing issues
Make a schedule to release or ask for reviewing
I will make a schedule with milestones to help you track the status of the project

