Build Complete, Scalable & High-Performance Web Applications
Are you looking for an experienced, reliable senior developer to build your entire web application from frontend interface to backend APIs and cloud deployment? I am Ajay Kumar Thakur, a full-stack engineer delivering custom web platforms, multi-tenant SaaS architectures, RESTful microservices, and high-converting web portals for startups, growing businesses, and global brands.
Building high-performing digital software requires more than just designing a sleek frontend or writing isolated backend scripts. It demands holistic architectural harmony from UI components down to the database indexes.
As a freelance full stack developer, I take complete responsibility for your entire technology stack. You don't have to hire, coordinate, or pay for separate frontend designers, backend engineers, database admins, and DevOps specialists. Working directly with me eliminates communication friction, ensures consistent code architecture, accelerates time-to-market, and saves you substantial agency overhead.
No finger-pointing between frontend and backend freelancers. One senior developer responsible for seamless integration, speed, security, and performance.
Every database schema, REST API endpoint, state management pattern, and UI component is custom-crafted to your specific business requirements.
Sub-second page renders, eager-loaded queries, Redis caching, token-based authentication (JWT/Sanctum), and complete protection against OWASP risks.
From Git commits to live production servers on AWS, Cloudflare, VPS, or cPanel with automated CI/CD pipelines, SSL encryption, and automated backups.
Comprehensive end-to-end development services to transform your digital concepts into scalable, production-ready software products.
Bespoke web applications engineered with modern frontend frameworks and robust backend servers tailored precisely to your operational workflow.
High-performance corporate portals and interactive web experiences equipped with custom CMS functionality, lead capture, and dynamic content.
Multi-tenant cloud architectures featuring tenant isolation, recurring billing via Stripe/Razorpay, usage metering, and client management panels.
High-converting bespoke storefronts, shopping carts, product filtering, inventory management, and multi-currency payment gateway integrations.
Proprietary workflow management software designed to automate manual tasks, eliminate spreadsheet errors, and digitize organizational paperwork.
Scalable RESTful and GraphQL APIs with token authentication, rate limiting, Swagger documentation, and integration with third-party software.
Fast, metric-driven control panels featuring real-time KPI graphs, advanced multi-column filtering, bulk actions, and CSV/PDF data exports.
Tailored CRM and ERP systems integrating inventory, order processing, lead pipelines, invoice generators, and role-based employee permissions.
Progressive Web Applications delivering app-like mobile experiences with offline caching, service workers, home screen installation, and push alerts.
From client-facing consumer platforms to complex internal business systems, I engineer digital products across multiple industries.
I create intuitive, high-speed, and responsive user interfaces that deliver exceptional user experiences across all screens and devices.
High-throughput, secure backend architectures engineered for concurrency, low latency, and maintainable business logic.
Event-driven, non-blocking I/O runtime engineered for high-concurrency microservices, real-time messaging, and low-latency APIs.
Minimalist, unopinionated web framework for Node.js powering secure RESTful API endpoints and robust middleware pipelines.
Modern PHP 8.2 / 8.3 with strict type declarations, JIT compilation, match expressions, and OOP design patterns.
Full-featured MVC framework with Eloquent ORM, job queues, Redis integration, authentication guards, and enterprise security.
Lightweight PHP framework for rapid project bootstrapping, maintenance of legacy systems, and lightweight web portals.
Standardized RESTful APIs featuring token-based authentication (JWT/OAuth), rate limiting, pagination, and Swagger docs.
Normalized relational and NoSQL database structures engineered for fast query speeds, ACID compliance, and enterprise data security.
Versatile content management and online store development across leading open-source CMS platforms and custom e-commerce engines.
Custom themes, bespoke Gutenberg blocks, advanced custom fields (ACF), speed tuning, and secure headless CMS configurations.
Bespoke checkout funnels, payment gateway integrations, custom product add-ons, and automated shipping workflows.
Custom Liquid themes, Shopify 2.0 sections, private app development, and headless Shopify storefronts using Next.js.
Enterprise B2B and B2C marketplace setup, custom module development, multi-store architecture, and performance tuning.
Lightweight e-commerce storefront development, OCMOD extension customization, payment gateways, and inventory sync.
Bespoke e-commerce software built in Laravel or Node.js with zero platform commission fees, custom checkout logic, and proprietary features.
I bridge your web application with essential third-party APIs, payment processors, marketing automations, and communication channels.
Security is embedded into every layer of development to protect sensitive customer data and safeguard business operations.
Multi-factor authentication (2FA), Argon2id/Bcrypt password hashing, and brute-force throttling.
Stateless JSON Web Tokens with short expiration, refresh token rotations, and encrypted cookie storage.
Granular RBAC hierarchies ensuring users can only view and interact with their assigned modules.
Action-specific permission gates protecting sensitive financial records, user accounts, and system settings.
Token scopes, CORS whitelisting, IP rate limiting, and encrypted payload transmissions over TLS.
Strict server-side validation schemas (Zod, Form Requests) preventing malformed or malicious payload injections.
Anti-forgery token verification and SameSite cookie policies blocking unauthorized cross-site requests.
Context-aware HTML escaping, DOMPurify sanitization, and Content Security Policy (CSP) headers.
HSTS, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy configured on all HTTP responses.
I orchestrate modern tech stacks that combine high-performance frontend interfaces with resilient backend architectures.
The modern JavaScript standard (MERN) powering real-time SPAs and data-heavy dashboards with shared code efficiency.
React's dynamic component interfaces combined with Laravel's enterprise Eloquent ORM, security, and queues via Inertia.js.
SEO-optimized server-side rendered (SSR) web applications with lightning-fast initial load times and robust microservices.
Modernizing existing PHP web backends with sleek, interactive React frontends via clean RESTful JSON endpoints.
Battle-tested relational stack engineered for rock-solid transaction integrity, complex queries, and enterprise reliability.
High-speed NoSQL architecture built for dynamic schemas, unstructured event logs, live chat, and horizontal scaling.
Strictly typed Prisma or Drizzle ORM paired with PostgreSQL for rock-solid enterprise multi-tenant applications.
Extending standard WordPress or Shopify platforms with custom external microservices, ERP sync, and automated workflows.
Turnkey cloud deployment ensuring high availability, continuous uptime, rapid CDN delivery, and rock-solid SSL encryption.
Get the deep capability of an entire software engineering team rolled into one dedicated senior developer.
End-to-end development from UI design to backend logic and cloud deployment managed by one engineer.
No non-technical account managers or communication delays. Speak directly with the architect building your app.
Expert in reactive JavaScript frontends as well as high-throughput PHP and Node.js database architectures.
Bespoke code written specifically to solve your business challenges without restrictive third-party templates.
Choose between milestone-based fixed price projects, hourly agile sprints, or dedicated monthly retainers.
Sub-second database queries, optimized asset bundles, eager loading, and multi-tier server caching.
Comprehensive defenses against OWASP vulnerabilities, CSRF, XSS, SQL injection, and unauthorized data access.
30 days complimentary post-launch warranty, routine security patches, server health checks, and feature updates.
A systematic 9-phase development framework ensuring crystal-clear milestones, transparent progress, and on-time delivery.
Discovery sessions to unpack your business model, target audience, feature scope, and technical benchmarks.
Selecting the ideal tech stack, creating system architecture diagrams, and scheduling milestone sprints.
Wireframing intuitive user journeys and designing normalized relational or document database schemas.
Coding responsive, pixel-perfect UI components in React, Next.js, or Blade with modern state management.
Architecting robust Node.js or Laravel controllers, data models, business logic services, and REST/GraphQL APIs.
Connecting frontend states to backend endpoints, integrating third-party APIs, and running end-to-end tests.
Conducting vulnerability scans, eliminating N+1 queries, setting up Redis caching, and asset minification.
Configuring production cloud hosting on AWS/VPS with SSL, automated database backups, and CI/CD pipelines.
Post-launch monitoring, routine dependency updates, server health audits, and ongoing feature enhancements.
I serve as a trusted technical partner for organizations at every stage of their business journey.
Rapid MVP builds, investor-ready prototypes, and agile feature iterations on sensible startup budgets.
Cost-effective custom web tools to digitize customer bookings, customer orders, and operations.
Multi-tenant platforms, recurring subscription billing, user quota controls, and high-concurrency APIs.
High-speed custom checkout flows, inventory syncing, payment integrations, and multi-vendor portals.
White-label full-stack development partner delivering clean, documented code on tight client schedules.
Turning innovative digital ideas into functional, scalable commercial web software from scratch.
Operational platforms to automate manual paperwork, streamline data flows, and increase productivity.
Modernizing legacy web monoliths, upgrading software systems, and integrating disconnected corporate databases.
High-traffic capability engineered through multi-layer caching, database query tuning, and resource minification.
Explore full-stack platforms, portals, and web applications I have architected and deployed for businesses.
Enterprise ERP & CRM
Healthcare SaaS & Booking
Automotive E-commerce
Corporate B2B Extranet
Milestone-based, honest pricing with complete transparency. Includes source code ownership, thorough testing, and a 30-day post-launch warranty.
Keep your web application running fast, secure, and compatible with the latest frameworks and browser standards.
Rapid resolution of frontend UI glitches, broken API integrations, and backend runtime exceptions.
Continuous agile development sprints to introduce new user features, dashboards, and capabilities.
Routine NPM/Composer package audits, SSL certificate renewals, and vulnerability patching.
Server OS updates, PM2 process monitoring, NGINX configurations, and load balancing audits.
Automated offsite database backups, index rebuilding, storage defragmentation, and cleanup routines.
Keeping third-party webhooks, payment gateways, and social logins aligned with external API deprecations.
Periodic slow-query analysis, Redis cache tuning, and Core Web Vitals audits to keep load times sub-second.
I serve as an experienced technical partner for companies looking to build, scale, or maintain web applications.
Answers to the most common questions regarding full stack web development, pricing, timelines, and tech stacks.
Feel free to contact me any time
Surya Nager, New Delhi, Delhi
info@ajaykumarthakur.in
+91 846-8805-153Let's build your complete web application from frontend to backend and deployment.
