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Fiverr Pro
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$
USD
I will develop custom fullstack web application, ai powered saas ai agents
Hashbang
Top Rated
About this gig
Looking for a full stack software developer to build your custom web application, SaaS platform, or AI agent?
I'm a web app developer and AI developer specializing in web app development, AI powered software, and SaaS development using React, Next.js, FastAPI, Django, and NestJS. I handle frontend, backend, database, and AI integration to deliver a product that's fast, reliable, and ready to scale.
What I can build:
- Custom web applications for startups and businesses
- Scalable SaaS platforms with subscriptions and user management
- AI agents, chatbots, and LLM integrations (OpenAI, Claude, Gemini)
- Automation tools that connect your existing systems
How I work:
- Free consultation call
- Clear scope from the start
- Honest timelines
- Direct communication throughout the build
- 30 days of free support after delivery
Have an idea for a SaaS product or AI agent? Message me with your requirements and I'll tell you exactly what it takes to build it.
Get to know Hashbang
Hashbang
Senior FullStack Dev, Python, MERN, AI Automations, DevOps
Top Rated
- FromNepal
- Member sinceJul 2022
- Avg. response time1 hour
- Last delivery1 day
Languages
English, Hindi, Spanish
Hi, I'm Shub, a Full-Stack Developer, Automation Engineer, and DevOps Engineer with 7+ years of experience helping startups, agencies, and businesses turn ideas into scalable, production-ready software.
I develop custom websites, AI integrations (OpenAI, Claude, n8n automations), SaaS MVPs and custom dashboards, Node.js, React, NextJS, APIs, Python, Django, FastAPI, MERN, Database, Stripe and PayPal payment integrations, website monthly maintenance.
Your next project deserves a reliable developer. Send me a message, I'll be happy to discuss your requirements and recommend the best approach.
My Portfolio
Other Software Development Services I Offer
FAQ
What is included in custom web application development?
Custom web application development includes full frontend and backend development, database design, API integrations, and deployment. Every project is built from scratch to match your specific business requirements, not a template.
How can we start working together?
You can send me your project details and requirements directly, or we can hop on a free consultation call where I'll understand your goals and recommend the right approach and package.
What package should I choose?
Basic is best for simple websites, landing pages, or portfolio sites. Standard fits business web apps with core features like databases and authentication. Premium is for advanced SaaS platforms or AI powered products with multiple integrations.
Are you willing to sign an NDA?
Yes, I'm happy to sign an NDA before work begins if you'd like to keep your project details confidential.
What if I'm not happy with the final delivery?
I include revisions with every package to make sure the final product matches your requirements. I also communicate throughout the project so there are no surprises at delivery, and any bugs or issues are covered under the 30 days of free support.
Do you offer a free consultation before I place an order?
Yes, I offer a free consultation call to discuss your project and confirm the right scope before you order.
Will I own the source code after delivery?
Yes, you get full ownership of the source code once the project is delivered, no vendor lock-in.
What technologies do you use?
I build with React, Next.js for frontend, and FastAPI, Django, or NestJS for backend, along with AI integrations using OpenAI, Claude, or Gemini where needed.
