You will get full stack bug fixes in Ruby on Rails, React, Node & Next.js
Project details
🚀 You will get expert full stack bug fixing in Ruby on Rails, React, Node.js, Next.js, and TypeScript — resolving critical issues across backend APIs, frontend components, and cloud deployment.
With over 5 years of experience in full stack web development, I specialize in identifying and fixing complex bugs in RoR apps, MERN stack, and modern JavaScript frameworks. Whether it’s a crashing API, broken UI, slow performance, or deployment failure.
🔧 This service includes:
✔️ Bug fixing for Ruby on Rails apps (controllers, models, routing, auth, ActiveRecord)
✔️ React & Next.js bug resolution (UI glitches, props/state, SSR issues, React bug fix)
✔️ Node.js & TypeScript debugging (API routes, typing errors, async bugs)
✔️ Technical debt cleanup and refactoring of legacy code
✔️ Secure deployment fixes (Heroku, AWS, DigitalOcean)
✔️ Performance optimization and load-time improvements
✔️ 3rd-party integrations: Stripe, OAuth, Google Maps, REST, GraphQL, SendGrid
You’ll receive clean, commented fixes with Git-based version control and production-ready testing.
🔥 If you need a full stack expert to fix bugs, clean up technical debt, and secure your deployment — let’s talk!
With over 5 years of experience in full stack web development, I specialize in identifying and fixing complex bugs in RoR apps, MERN stack, and modern JavaScript frameworks. Whether it’s a crashing API, broken UI, slow performance, or deployment failure.
🔧 This service includes:
✔️ Bug fixing for Ruby on Rails apps (controllers, models, routing, auth, ActiveRecord)
✔️ React & Next.js bug resolution (UI glitches, props/state, SSR issues, React bug fix)
✔️ Node.js & TypeScript debugging (API routes, typing errors, async bugs)
✔️ Technical debt cleanup and refactoring of legacy code
✔️ Secure deployment fixes (Heroku, AWS, DigitalOcean)
✔️ Performance optimization and load-time improvements
✔️ 3rd-party integrations: Stripe, OAuth, Google Maps, REST, GraphQL, SendGrid
You’ll receive clean, commented fixes with Git-based version control and production-ready testing.
🔥 If you need a full stack expert to fix bugs, clean up technical debt, and secure your deployment — let’s talk!
Programming Languages
JavaScript, Ruby/Ruby on Rails, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$50
|
Standard
$120
|
Advanced
$200
|
|---|---|---|---|
| Delivery Time | 1 day | 3 days | 5 days |
Number of Revisions | 1 | 2 | 3 |
Bug Investigation | |||
Fix Documentation | - | ||
Detailed Code Comments | - |
Frequently asked questions
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Naseem A.
Sep 18, 2025
Full Stack Ruby on Rails & React/Next.js Web App Work
Perfect experience working with Muhammad, would definitely work with him again.
SB
Sam B.
Jul 30, 2025
Ruby on Rails expert (fixed project)
Muhammad fixed two urgent issues for us on short notice. He really saved the day for us doing that. We'll definitely work with him again on future tasks.
SK
Sagar K.
Nov 6, 2024
Staff RoR Engineer
Nouman is an outstanding software engineer with excellent architectural skills, adept at designing effective solutions for complex projects. He brings impressive focus and a commitment to resolving issues, consistently ensuring smooth workflows and timely delivery. Highly recommended!
KK
Kevin K.
Mar 15, 2024
IG API + Rails dev
JR
Jackson R.
Sep 12, 2023
Asdf
About Muhammad Nouman
Senior Full-Stack Developer | React, Node, Python, AI/LLM, SaaS
100%
Job Success
Lahore, Pakistan - 7:16 pm local time
My work spans frontend, backend, APIs, AI/LLM integrations, cloud infrastructure, DevOps, and deployment, delivering multi-tenant SaaS platforms, internal dashboards, admin panels, public-facing apps, automation systems, and high-traffic production web applications.
🚀 𝐈 𝐬𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞 𝐢𝐧 𝐏𝐲𝐭𝐡𝐨𝐧 (𝐅𝐚𝐬𝐭𝐀𝐏𝐈), 𝐍𝐨𝐝𝐞.𝐣𝐬 (𝐄𝐱𝐩𝐫𝐞𝐬𝐬, 𝐍𝐞𝐬𝐭𝐉𝐒), 𝐑𝐮𝐛𝐲 𝐨𝐧 𝐑𝐚𝐢𝐥𝐬 𝐰𝐢𝐭𝐡 𝐑𝐞𝐚𝐜𝐭.𝐣𝐬, 𝐍𝐞𝐱𝐭.𝐣𝐬 (𝐀𝐩𝐩 𝐑𝐨𝐮𝐭𝐞𝐫), 𝐓𝐲𝐩𝐞𝐒𝐜𝐫𝐢𝐩𝐭, 𝐉𝐚𝐯𝐚𝐒𝐜𝐫𝐢𝐩𝐭, building API-first, scalable, maintainable systems backed by 𝐏𝐨𝐬𝐭𝐠𝐫𝐞𝐒𝐐𝐋, 𝐒𝐮𝐩𝐚𝐛𝐚𝐬𝐞, 𝐏𝐫𝐢𝐬𝐦𝐚, 𝐌𝐲𝐒𝐐𝐋, 𝐌𝐨𝐧𝐠𝐨𝐃𝐁.
I’ve worked extensively on 𝐒𝐚𝐚𝐒 𝐌𝐕𝐏𝐬, 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐰𝐞𝐛 𝐚𝐩𝐩𝐬, 𝐋𝐋𝐌-𝐛𝐚𝐬𝐞𝐝 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬, 𝐒𝐭𝐫𝐢𝐩𝐞 𝐛𝐢𝐥𝐥𝐢𝐧𝐠 𝐬𝐲𝐬𝐭𝐞𝐦𝐬, 𝐢𝐧𝐭𝐞𝐫𝐧𝐚𝐥 𝐭𝐨𝐨𝐥𝐬, 𝐝𝐚𝐬𝐡𝐛𝐨𝐚𝐫𝐝𝐬, 𝐚𝐧𝐝 𝐞𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬, 𝐢𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐧𝐠 𝐎𝐩𝐞𝐧𝐀𝐈 𝐀𝐏𝐈, Anthropic, LangChain, Langflow, automation pipelines, structured LLM outputs, and background processing into real production environments.
𝐖𝐡𝐞𝐭𝐡𝐞𝐫 𝐲𝐨𝐮’𝐫𝐞:
Building a production-ready MVP
Scaling a Next.js + TypeScript SaaS
Developing AI / LLM-powered applications
Creating FastAPI or Node.js backends
Implementing Stripe subscriptions, usage-based billing, or webhooks
Migrating, refactoring, or stabilizing an existing system
I focus on clean architecture, performance, scalability, and long-term maintainability.
✅ 𝐒𝐞𝐧𝐢𝐨𝐫 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 / 𝐒𝐚𝐚𝐒 / 𝐀𝐈 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫
🏅 Senior Full Stack Developer (product-minded, ownership-driven)
🏅 Strong Next.js, React, TypeScript, API-first expertise
🏅 Backend experience with Rails, FastAPI, Express, NestJS
🏅 AI & LLM integrations (OpenAI, Anthropic, LangChain, Langflow)
🏅 6+ years of production engineering
🏅 Built and supported 50+ SaaS, AI, FinTech, and web products
𝐅𝐫𝐨𝐦 𝐌𝐕𝐏 𝐭𝐨 𝐅𝐮𝐥𝐥-𝐒𝐜𝐚𝐥𝐞 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧
I design, build, and deploy scalable SaaS architectures, REST & JSON APIs, AI pipelines, dashboards, and admin systems using Ruby on Rails, FastAPI, Node.js, React, Next.js, and TypeScript.
I follow clean coding and testing practices (RSpec, Jest), build responsive, mobile-first, pixel-perfect UIs with HTML5, CSS3, Tailwind CSS, Bootstrap, and deploy to modern cloud environments.
🔹 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝
• React.js, Next.js (SSR, SSG, App Router)
• JavaScript, TypeScript
• HTML5, CSS3
• Tailwind CSS, Bootstrap
• Dashboards, admin panels, tables, forms, responsive UI
🔹 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 / 𝐀𝐏𝐈𝐬 / 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞
• Node.js, Express, NestJS
• Python, FastAPI
• Ruby on Rails (ROR)
• REST APIs, JSON APIs, GraphQL
• Authentication & Authorization (JWT, OAuth2)
• Webhooks, background jobs, queues
• Microservices, event-driven architecture
🔹 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬 & 𝐂𝐚𝐜𝐡𝐢𝐧𝐠
• PostgreSQL, Supabase
• MySQL, MongoDB
• Prisma
• Redis, Sidekiq
• Advanced data modeling, indexing, performance optimization
🔹 𝐀𝐈 / 𝐋𝐋𝐌 / 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧
• OpenAI API, Anthropic
• LangChain, Langflow
• LLM-powered features & automation
• Prompt orchestration, structured outputs
• AI pipelines integrated into production apps
🔹 𝐏𝐚𝐲𝐦𝐞𝐧𝐭𝐬 & 𝐒𝐚𝐚𝐒
• Stripe (Checkout, Subscriptions, Webhooks, Billing Portals)
• Usage-based billing, pricing logic
• Secure payment flows
🔹 𝐂𝐥𝐨𝐮𝐝, 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭
• AWS, S3 / Cloud Storage
• Vercel, Render, Fly. io, Firebase, Heroku
• GCP, DigitalOcean
• Kubernetes
• Docker, CI/CD pipelines
• Git (version control)
• Environment configuration & scalable deployments
𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞
✔ Product-minded Full Stack Engineer
✔ Production-ready & scalable mindset
✔ Clear communication & ownership
✔ Fast iteration without sacrificing code quality
✔ Long-term maintainability over short-term hacks
Let’s build a scalable, production-ready mobile/web or AI application that’s ready for real users and real growth.
𝐈’𝐦 𝐚𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞
Steps for completing your project
After purchasing the project, send requirements so Muhammad Nouman can start the project.
Delivery time starts when Muhammad Nouman receives requirements from you.
Muhammad Nouman works on your project following the steps below.
Revisions may occur after the delivery date.
Analyze the Reported Bug
Review the client's description, logs, and codebase. Reproduce the issue locally or in staging if available.
Isolate Root Cause
Debug backend (Ruby on Rails, Node.js) or frontend (React, Next.js) logic. Identify whether the issue lies in code, deployment, or integration.