API Backend Development Needed

@kabirchy

Hi there, The vision for Bihar Ka Bazaar is commendable, and I’m excited about the opportunity to contribute to this meaningful project. With a strong background in API and backend development, I can help integrate the existing frontend with robust, scalable backend solutions. I'll develop RESTful APIs with a focus on performance and security, utilizing JavaScript and Node.js to ensure seamless communication between components. Leveraging my experience with both MongoDB and PostgreSQL, I can architect an efficient database structure that supports the complex data interactions necessary for artisans, weavers, and farmers to effectively showcase their products. Additionally, I will ensure comprehensive documentation to facilitate easy maintenance and future enhancements. I look forward to potentially collaborating with you to bring Bihar Ka Bazaar to life and support local communities in connecting with a wider market. Best Regards, Khorshed Alam, RS Software

@Azursol

Greetings, Bihar Ka Bazaar is an exciting initiative to connect local artisans and farmers with a broader market, and I see the challenge you’re facing with your current data storage and security setup. Transitioning from JSON flat files to a robust database like MongoDB or PostgreSQL is crucial for scalability and performance. To tackle this, I would first analyze your existing data structures to ensure a seamless migration, preserving the integrity of your data models. Next, I would enhance your Seller Registration System by integrating a reliable OTP service for verification and securely handling sensitive information like bank details and personal IDs. Implementing strong data encryption and structured error logging will ensure that your platform is not only secure but also compliant with data protection standards. Looking forward to helping you build a reliable and efficient backend for your platform.

@FreeLancers360

Hi there, Your project "API Backend Development Needed" instantly caught my attention — it's exactly the kind of work we love to take on. What stood out to me is how clearly you’ve described what you want — and clarity like that is where we deliver our very best work. From your brief I can see this involves react, node, frontend — all areas we handle in-house. We specialise in Java, JavaScript, Python, Node.js, which lines up directly with what you need. How we'd approach it: - Map out the scope, pages and data models up front - Build the frontend and backend with clean, scalable code - Test across devices and browsers, then deploy - Hand over with documentation and post-launch support You can count on tight communication, on-time delivery, and a result that’s effortless to sign off on. Happy to jump on a quick chat to walk through scope and timelines whenever suits you. Best regards, FreeLancers360 Let’s connect in chat and get started — message me anytime and I’ll reply right away!

@rudracompuTech

Hello, I am a Full-Stack Backend Developer with strong expertise in Laravel, PHP, Node.js, MySQL, PostgreSQL, REST APIs, authentication, and database design. I have developed secure, scalable backend systems for web and mobile applications, including user management, role-based access control, third-party API integrations, payment gateways, file management, and comprehensive API documentation. Modern backend API projects typically require clean architecture, robust security, proper validation, and well-documented endpoints. For your project, I can design and develop a robust backend with well-structured REST APIs, JWT/Sanctum authentication, optimized database architecture, Swagger/Postman documentation, and seamless frontend integration. I focus on clean, maintainable code, high performance, and scalability while following industry best practices to ensure the backend is reliable and easy to extend. I provide regular progress updates, Git-based development, comprehensive testing, deployment support, and post-launch maintenance. I am available to start immediately and would be happy to discuss your API requirements, technology stack, and project timeline. Best regards, Rudra

@deepaksonidz

Hi….I read your project description and understood your requirements. Let’s start chat to discuss in details. I have more than 10 years of experience in Web Designing & Development, Mobile Application, CRM, Graphics Design, Game Development, Digital Marketing & Complete Software Solutions.... for quality services connect with me. My Top Skills: Java, Kotlin, Shift, Native Android, XML, Angular, Unity, Node, React Native, Flutter, Python, HTML, HTML5, CSS, Bootstrap, MySql, Wordpress, Core Php, Oops Concept, Framework (Code Igniter, Cake Php, Laravel). Let’s connect via chat to discuss your specific milestones and timeline. Thanks & Regards. Waiting positive response.

@ibrar03340266

As an experienced Full-Stack Web & Mobile App Developer, I have a diverse set of skills that make me the ideal candidate for your Bihar Ka Bazaar project. Over the past 5+ years, I've built a solid foundation with backend development, using Node.js and REST APIs to design scalable architectures. My proficiency extends to multiple databases such as MongoDB and PostgreSQL, ensuring data migration like what you require is executed flawlessly without much impact on your existing API routes. What sets me apart is my ability to see beyond the immediate project scope. While Milestone 1 involves migrating your storage system, I understand that it's just the tip of the iceberg in terms of securing and scaling your Seller Registration System. With this in mind, I am confident in my ability to tackle milestones 2 and 3 effectively. Securely handling PII data, integrating SMS gateways, Finally, I believe my keen project management skills will be an asset to your team. Not only can I gather requirements effectively but also successfully implement them keeping the project timeline intact thanks to my proficiency with Agile & Scrum methodologies. In conclusion, by hiring me you will get more than just a backend developer; you'll gain access to extensive skill set which merges end-to-end development solutions, efficient automation implementations and robust project management expertise.

@shailender18

Hi, Your priority is to move from a JSON-based setup to a secure, scalable backend without disrupting the existing application while strengthening the seller registration flow for production use. I can migrate your data to MongoDB or PostgreSQL, redesign the data layer for minimal API changes, and implement a secure multi-step seller registration system with OTP verification, progress save/resume, encrypted storage of sensitive data, KYC validation, and structured audit logging. The solution will be optimized for performance, security, and future scalability while maintaining clean, maintainable code. I'd be happy to review your current architecture and recommend the most suitable database based on your data relationships, scalability goals, and long-term roadmap. I look forward to discussing your project.

@ProfessorVats

Experienced backend developer with proven success migrating JSON flat-file stores to PostgreSQL and securing multi-step registration flows. Past projects include e-commerce platforms with OTP integration and encryption. Ready to deliver zero-disruption migration, robust seller wizard, and audit logging. Available 24/7 for support. Let's discuss your timeline.

@alekseiw

Hi, I've reviewed your scope — migrating from JSON to PostgreSQL, refactoring the DAL, and securing the seller registration flow (OTP, GST/PAN/Aadhaar validation, encrypted bank data, audit logging). Quick note: the posted budget covers a few hours; below is an honest estimate at $70/hr, including a 40% buffer for testing and review cycles. M1 – DB Migration: 7–10 days, $1,750–$2,450 M2 – Registration Flow: 10–14 days, $2,450–$3,500 M3 – Security & Logging: 6–8 days, $1,400–$2,100 Total: ~22–32 days, $5,600–$8,050 (≈₹5.3L–7.7L at current rate) Approach highlights: - PostgreSQL recommended over MongoDB for relational KYC data + transactional integrity - Aadhaar: recommend masked storage + licensed KYC API rather than raw storage, to limit compliance risk - Field-level encryption (not just DB-level) for bank/PII data - DAL refactored so existing API routes need minimal changes Happy to start with M1 alone to prove fit before the full scope. Can share relevant migration/KYC project examples on request. Open to a short call to align on Aadhaar handling before locking scope.

@sahils795

I love to solve a problem and completing a workout as soon possible I learn any very fast and working very hard

@BeastCodZ

Student developer, experience with 20+ projects, experienced in js,python,node.js,api. Full Stack developer who has a taste for user interface and negotiable and kind enough. You may find cheaper offer with better work experience but selecting raw over ai slop is better in terms of quality and service.

@vipulk296

Hi, Thanks for the detailed brief — it's clear and easy to scope, which I appreciate. Here's how I'd approach it: CMS recommendation: WordPress. It gives you full control to edit copy and add photos yourself without touching code, has strong SEO plugin support (Yoast or Rank Math), and is easy to hand off with clean documentation. Approach: Services Offered — icon-supported layout with clear sections for each service, structured so you can add new services later without redesigning the page About Us — professional, trust-building layout combining your company story with photos, styled to feel corporate and established Contact — a contact form wired to deliver straight to your inbox (with CMS-side backup storage), plus a map embed, standard phone number, and a clearly visible after-hours emergency contact Technical delivery: Fully responsive design, tested across major browsers and devices Performance-optimized for sub-3-second load on 4G (optimized images, minimal bloat, no unnecessary plugins) On-page SEO basics: meta titles, descriptions, and ALT tags across all pages Hosting setup, SSL configuration, and domain connection handled end-to-end Restrained, professional design: generous whitespace, a limited corporate color palette, and clean typography Handover: Admin login credentials A short screen-recorded video (or PDF) walking through how to update text and add photos Full source files and all credentials once you've signed off

@chengalappan42

Hi there, I read through your requirements for the Spring Boot microservices project with Kafka integration, and this is directly in my wheelhouse — I've spent the last 4+ years building exactly this kind of system in production.

@tashingam1

Hi there, I have solid experience with WordPress, PHP, HTML/CSS, and Web Design, and I build child themes to keep custom CSS/JS clean and update-safe. I'll install and activate your theme, configure all options to match your brand assets, set up menus/widgets/plugins, and replace demo content with your real copy. I'll handle on-page SEO, ensure full responsiveness across Chrome, Safari, and Firefox, install your required ADA compliance plugin, and optimize for 80+ on Google PageSpeed for mobile and desktop. I'm comfortable working with your hosting access directly and can deliver within 7 days. Happy to hop on a quick call first to confirm design details before starting. Looking forward to getting your site live and running smoothly.

@rohit8426

Hi, I'm a Full Stack Developer (MERN + Node/Express/Sequelize/PostgreSQL) with hands-on production experience in exactly the kind of work this project needs — data migration, secure multi-step registration flows, and encrypted sensitive-data handling. Relevant experience: - Migrated and built production DAL layers on Node.js/Express with Sequelize ORM over PostgreSQL, including refactors that kept API contracts stable for existing frontends (similar to your JSON-to-DB migration needs). - Built a multi-step KYC registration flow (bank details, PAN/Aadhaar-type sensitive fields, document upload, save & resume) for a fintech platform, with AES-256-CBC encryption for sensitive stored data and audit logging Proposed approach: 1. Review current `/lib/*.js` DAL and JSON structures, map to normalized Postgres/Mongo schema. 2. Migrate data with a rollback-safe script, keep API route signatures unchanged. 3. Build the seller registration flow (OTP → business classification → bank/UPI/GST/PAN/Aadhaar → save & resume) with field-level encryption + audit logs. Happy to start with a scoped first milestone (DB migration) to establish trust, then continue to the registration flow. Can share relevant project references on call/chat.

@HenkeG1

I recently assisted a similar e-commerce platform with backend enhancements, resulting in improved scalability and security. With our expertise, we will optimize your database storage (MongoDB/PostgreSQL) and fortify the Seller Registration System to ensure seamless functionality and data protection. Our focus will be on secure data handling, encryption, and efficient API integration. Let's collaborate to elevate Bihar Ka Bazaar's backend performance and security, aligning with your vision for a robust platform. Looking forward to discussing further details and initiating this transformation. Regards, Henke.

@aniketyadav5705

Hi, Your project aligns well with my backend development experience. I can migrate your current JSON-based storage to a production-ready MongoDB or PostgreSQL database while keeping your existing API structure intact with minimal code changes. Here's what I can deliver: ✔ Database schema design and migration from JSON files ✔ Refactor the existing DAL for seamless API compatibility ✔ Secure multi-step seller registration flow ✔ OTP verification using Twilio or MSG91 ✔ Save & Resume functionality with secure authentication ✔ Validation for GST, PAN, Aadhaar, bank details, and UPI ✔ Encryption of sensitive user data and secure handling of PII ✔ Structured logging, audit trails, and robust error handling ✔ Clean, maintainable, and well-documented code I have experience building scalable REST APIs, authentication systems, payment integrations, and secure backend architectures using Node.js and SQL databases. I focus on writing production-ready, maintainable code that is easy to extend as your platform grows. I'm available to start immediately and will provide regular progress updates throughout development. Looking forward to discussing the project. Thanks, Aniket Yadav

@amitsonwalkar05

Hello, I am a Lead Software Engineer with 13+ years of experience in backend and full stack development. I specialize in designing and developing secure, scalable, and high-performance REST APIs and microservices for web and mobile applications. My expertise includes API development, microservices architecture, Java, Spring Framwork Python, Firebase, database design, third-party API integration, authentication and authorization, cloud services, and CI/CD pipelines. I write clean, maintainable code and ensure that APIs are well-documented, reliable, and optimized for performance. I can help you build a robust backend that meets your business requirements while ensuring scalability, security, and long-term maintainability. I am committed to clear communication, timely delivery, and high-quality results. I would be happy to discuss your project in detail and propose the best technical solution. Thank you for your consideration.

@Thongphet

I’ve reviewed your requirements for a Node.js backend with PostgreSQL, JWT auth, Swagger documentation, and testing. This is a classic production-ready API architecture project, not just CRUD endpoints. My approach: Setup Node.js (Express + layered architecture: routes → services → repositories) PostgreSQL schema design with indexing for scalability JWT-based authentication + role-based access control REST API with validation + centralized error handling Swagger/OpenAPI documentation from day one Jest + Supertest for integration testing