I will custom backend API development and secure transaction systems

S
sekhar2
S
sekhar2
Chandra Sekhar
custom backend API development and secure transaction systems
Full Screen
custom backend API development and secure transaction systems
Full Screen
custom backend API development and secure transaction systemscustom backend API development and secure transaction systems

About this gig

I build custom backend systems and secure full stack web applications using modern JavaScript technologies.


This gig focuses strictly on software development, including backend APIs, system integrations, dashboards, and scalable architecture for SaaS and fintech style platforms.


What I can help with:

- Secure backend API development

- Transaction style data handling and logging

- Database design and integration

- Webhook handling and third party API integration

- Admin dashboards and role based access

- Performance optimized and scalable architecture


Technology stack:

- JavaScript with Node.js and Express.js

- REST APIs and JSON based services

- Secure database driven systems

- Frontend dashboards using React


Important note:

I do not provide financial services, bank accounts, licenses, or regulated products.

This gig is strictly for custom software development and system integration.


If you are building a fintech, SaaS, or transaction based platform and need a reliable backend system, feel free to message me before ordering to discuss your requirements.



  • Programming language

    • JavaScript

  • Expertise

    • Debugging
    • Performance
    • Security
    • Databases

  • Frontend framework

    • React.js
    • Bootstrap

  • Backend framework

    • Express.js

Get to know Chandra Sekhar

Chandra Sekhar

Building Scalable AI SaaS Cloud and Crypto Solutions for Businesses

4.2(24)
  • FromIndia
  • Member sinceSep 2017
  • Avg. response time1 hour
  • Last delivery1 week

  • Languages

    Hindi, English
Hi, I’m Chandra Sekhar, a full-stack developer delivering enterprise-grade AI solutions, SaaS platforms, and web & mobile applications. I work with JavaScript, Python, PHP (Laravel), React, Next.js, Node.js, WordPress, Android, AI APIs, and blockchain technologies. I design scalable AI chatbots, automation systems, dashboards, secure business applications, and crypto/blockchain integrations. I also provide server administration, cloud hosting, deployment, and performance optimization, focusing on scalability, security, and long-term business value.

My Portfolio

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