You will get Fix Website or App Bugs Quickly
Project details
You will get reliable website or app bug fixing with clean, optimized code. I specialize in modern technologies like React, Next.js, Tailwind CSS, TypeScript, and Go, ensuring your project runs smoothly and performs efficiently. My approach goes beyond just fixing bugs — I carefully analyze the root cause, apply the best fix, and test thoroughly to avoid future issues.
With experience in both small fixes and large-scale optimizations, I focus on quality, communication, and fast delivery. Whether it’s resolving errors, improving performance, or providing clear documentation, you’ll get results that make your project stable and easy to maintain.
With experience in both small fixes and large-scale optimizations, I focus on quality, communication, and fast delivery. Whether it’s resolving errors, improving performance, or providing clear documentation, you’ll get results that make your project stable and easy to maintain.
Programming Languages
JavaScript, TypeScript, GoCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$30
|
Standard
$70
|
Advanced
$120
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 7 days |
Number of Revisions | 1 | 2 | 3 |
Bug Investigation | |||
Fix Documentation | - | - | |
Detailed Code Comments | - |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$10 - $30
Detailed Code Comments
(+ 1 Day)
+$10Frequently asked questions
About Sundram Kumar
Senior Full-Stack Developer Next.js | TypeScript | Node.js | Golang
Garhwa, India - 11:59 am local time
PROVEN IMPACT
I have successfully led projects that have reduced API latency by 40% through optimized Golang backends and implemented Next.js (App Router) architectures that cut cloud hosting costs by 25%. I deliver clean code that directly drives business efficiency and growth.
ELITE FULL-STACK EXPERTISE
SaaS Architecture: Next.js (App Router) & Node.js/Golang backends for high-traffic SaaS platforms.
Performance & Scale: Microservice design, database optimization (PostgreSQL/Prisma), and full-stack performance tuning.
Advanced Integrations: AI/LLM workflows (OpenAI, Claude, LangChain) & Secure Payments (Stripe integration).
E2E Development: Building and deploying scalable SDKs, APIs (REST/GraphQL), and custom automation tools.
Design & UX: Pixel-perfect, high-conversion UIs using TypeScript, Tailwind CSS, and Material-UI.
CORE TECHNOLOGY STACK
Frontend Mastery: Next.js (App Router Focus), React, TypeScript, Zustand, React Query, Zod.
Backend & API: Golang (Primary Backend), Node.js, Express.js, PostgreSQL, Prisma ORM, Supabase.
Cloud & DevOps: AWS (EC2, Lambda, S3), Vercel, Docker, CI/CD, GitHub Actions.
Automation/AI: OpenAI API, Claude, LangChain, Retool, Webhooks.
Monetization: Stripe Integration, Billing, Subscription Management.
THE VALUE I BRING
Code Architect: You get a solution architect, not just a coder. I design systems to last.
Optimized Performance: I deliver clean, tested, and highly performant code that scales efficiently.
Proactive Communication: Transparent daily/weekly updates, flexible to US/EU time zones.
Partnership Focus: I aim for long-term, impactful collaborations over quick fixes.
READY TO START? Let’s discuss your project's architecture and scope. Please send me:
A brief on the core business problem you are solving.
Key technical requirements or existing stack.
Your target budget and timeline.
I typically respond within 1-2 hours and can scope out a plan for you immediately. Let's turn your vision into a robust, high-performance reality.
Steps for completing your project
After purchasing the project, send requirements so Sundram Kumar can start the project.
Delivery time starts when Sundram Kumar receives requirements from you.
Sundram Kumar works on your project following the steps below.
Revisions may occur after the delivery date.
Bug Analysis
I will review your description, access files, and reproduce the reported issue.
Debugging & Fixing
I will locate the root cause and apply clean, efficient fixes.