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I will be your next js developer for a custom saas web app and crm
Langesh
Level 1
5.0
5.0
What people loved about this freelancer
aedesignsstudio
India
This was my first order with Langesh. He is fast, professional, and easy to work with. He delivered high-quality work, patiently listened to all edge cases,...
dev_noah
Netherlands
Dev_langesh did a really good job. He delivered very quick and responded to every question i had. He understood my assignment and deliverd what i needed.
hejoseangel
Venezuela
Really very pleasant experience, he responds quite quickly and the deliveries are just as fast. It helps a lot if needed. Recommended.
sohaib_khaan
Pakistan
He made my day, I hired him for deployment, and he did the job within an hour. I highly recommend him.
antonrichards
India
great learning journey and great person with great knowledge in cross disciplines like Java , python in MERN stack and django ...to go guy for any project ..
About this gig
Looking for a scalable SaaS, CRM, or Custom Web App?
Hi, I'm Langesh. With 5+ years of Full Stack experience, I specialize in building modern, production-ready web applications. As a dedicated Next JS Developer, I don't just write code; I engineer secure, high-performance business solutions.
My Promise: I do not rely on blind copy-paste from AI tools. Every line of code is human-reviewed for maximum security, scalability, and performance.
Solutions I Build:
- Custom CRM & Dashboards: Stop paying monthly software fees; own your data.
- SaaS Web App Development: End-to-end development from idea to MVP.
- Modern Backend Architecture: Seamless integration with Node.js, MongoDB, or Supabase.
- AI & API Integrations: Stripe payments, OpenAI, Twilio, and complex REST APIs.
- Enterprise Security: JWT, OAuth, RBAC, and OWASP Top 10 compliance.
️ Tech Stack:
- Next JS
- React
- TypeScript
- Node JS
- Tailwind CSS
- Supabase
- MongoDB
- PostgreSQL
Why Hire Me?
- On-time delivery
- Enterprise quality
- Production ready
- 100% Confidential
Every project is unique! Please message me before placing an order to discuss.
Get to know Langesh
Langesh
Full Stack Developer, MERN Stack, ReactJS, NextJS, NodeJS, AWS, DevOps
Level 1
- FromIndia
- Member sinceJun 2022
- Avg. response time1 hour
- Last delivery2 days
Languages
Tamil, English
Hello! I'm Langesh, a Full Stack Developer, DevOps Engineer & Cloud Architect with expertise in Python, JavaScript, TypeScript, MERN ( MongoDB, ExpressJS, ReactJS, NodeJS ) stack, NextJS, AWS, GCP, Docker, Jenkins, Ansible, Terraform, PostgreSQL, etc. I build efficient, dynamic web applications and handle everything from development to deployment and automation. With attention to detail, logical thinking, and strong problem-solving skills, I deliver high-quality, maintainable code. I stay up to date with the latest trends and adhere to coding standards to deliver cutting-edge solutions.
My Portfolio
FAQ
Why should I choose a custom Next JS web app over no-code builders like Bubble?
Custom Next.js web apps give you 100% code ownership, infinite scalability, and no monthly vendor lock-in fees. No-code tools are great for quick prototypes, but I engineer robust SaaS platforms and CRMs that perform faster, handle complex data securely, and can scale to millions of users.
What specific technologies do you use for full-stack development?
I specialize in frontend and backend development across the MERN stack, React, Next.js, Node.js, MongoDB, PostgreSQL or modern Backend-as-a-Service (BaaS) platforms like Supabase. I ensure your database architecture is fully optimized and secure.
Do you just use AI tools to write the code?
Absolutely not. I do not rely on blind copy-paste from AI tools. I use AI strictly to accelerate boilerplate work, meaning every single line of code is carefully reviewed for performance, security, scalability, and maintainability.
Can you fix my broken AI-generated app (Cursor, Bolt.new, Lovable)?
Yes! Whether you need to build a SaaS product from scratch or fix AI project builds on React, Node JS, Next JS, and MongoDB, I’ve got you covered. I can take your broken prototype, debug the logic, and make it production-ready.
How do you handle application security and user logins?
Security is my top priority for SaaS platforms. I implement enterprise security: Authentication systems (JWT + RBAC + OAuth) & OWASP Top 10 compliance.
Can you integrate payment gateways like Stripe?
Yes! I handle complex API integration for payment gateways and third-party tools. I can set up secure checkout flows and subscription models using Stripe for your SaaS web app.
Can you provide a live demo before delivery?
Certainly, I can arrange a live demo for testing purposes before the final delivery.
Will you help me deploy the application once it's built?
Yes, as an expert DevOps engineer, I seamlessly deploy on AWS, GCP, DigitalOcean, Hostinger, or any custom VPS.
Can you help with troubleshooting issues after deployment?
Yes, I can assist with troubleshooting issues that may arise after deployment. Whether it's technical issues, compatibility problems, or any other challenges, I can provide guidance and support to help resolve them efficiently.
My SaaS project is very complex. Which package should I choose?
Every project is unique!. Please message me before placing an order so we can discuss your specific architecture and workload. I can easily create a tailored Custom Offer based on your exact requirements.
Reviews
57 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
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Most relevant
A abdullahmahmud
Repeat Client
Japan
Continue working
Up to $50
Price
1 day
Duration
Helpful?A ahmadr200
Repeat Client
Saudi Arabia
Thank you..
$50-$100
Price
8 days
Duration
Helpful?A ahmadr200
Repeat Client
Saudi Arabia
Thank you..
$50-$100
Price
3 days
Duration
Helpful?G guretun34
Repeat Client
Israel
Will work with the seller again
Up to $50
Price
1 day
Duration
Helpful?B buyingaccount20
Repeat Client
United Kingdom
This is like my fourth order with this developer, he never disappoints always delivers on time.
Up to $50
Price
2 days
Duration
Helpful?
Reviews
57 reviews for this Gig
| (56) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
A abdullahmahmud
Repeat Client
Japan
Continue working
Up to $50
Price
1 day
Duration
Helpful?A ahmadr200
Repeat Client
Saudi Arabia
Thank you..
$50-$100
Price
8 days
Duration
Helpful?A ahmadr200
Repeat Client
Saudi Arabia
Thank you..
$50-$100
Price
3 days
Duration
Helpful?G guretun34
Repeat Client
Israel
Will work with the seller again
Up to $50
Price
1 day
Duration
Helpful?B buyingaccount20
Repeat Client
United Kingdom
This is like my fourth order with this developer, he never disappoints always delivers on time.
Up to $50
Price
2 days
Duration
Helpful?
