Web Systems
Fast, responsive websites and customer-facing platforms built with Next.js and React.
Next.jsTypeScriptSEO
AVAILABLE FOR 2026
PRATIK DAS
I am Pratik Das. I build websites, Android apps, SaaS dashboards, and automation tools for businesses.
WebAndroidSaaSAutomation
01 / About
A practical engineerfor growing businesses
I’m Pratik Das, an independent full-stack developer from India. I build websites, Android apps, SaaS platforms, and automation systems that are straightforward, fast, and easy to maintain.
Experience4+ years
FocusWeb, mobile, automation
AvailabilityRemote worldwide
Mobile Apps
Reliable native Android applications with clean architecture and maintainable code.
KotlinJavaAndroid
SaaS Platforms
Dashboards, admin hubs, and multi-role systems designed for operational scale.
Full-stackDashboardsCloud
Automation & APIs
WhatsApp workflows, CRM integrations, and secure API gateways that save time.
AutomationAPIsFirebase
Why clients work with me
Business-first engineering
Every feature is tied to conversion or efficiency.
Performance-focused builds
Optimized assets, clean code, and fast interactions.
Transparent milestones
Clear scope, predictable pricing, and regular updates.
Direct engineer access
No account-manager layers or delayed communication.
0Years in Tech IndustryPractical Engineering
0Projects DeliveredWorldwide Shipments
0Client SupportDedicated SLA
0Delivery Lead TimeStrict Milestone Tracking
02 / WHY CLIENTS CHOOSE ME
WHY CLIENTS PARTNERWITH PRATIK DAS.
Tangible engineering advantages grounded in real-world delivery discipline and direct accountability.
Direct Engineer Communication
You communicate directly with the developer building your application. No project managers playing telephone, no miscommunications, and no delayed responses.
Custom-Built Architecture
Every project is engineered specifically for your business logic. Zero bloated page builders, zero locked-in proprietary ecosystems, and zero unnecessary code.
Obsessive Performance Focus
We test against strict Core Web Vitals targets. Faster page loads mean reduced bounce rates, higher Google rankings, and better customer conversion.
Flawless Mobile Experience
Over 70% of web traffic originates from mobile devices. Every layout, button touch target, and image asset is optimized for smartphones and slow connections.
Reliable Post-Launch Support
We do not disappear once the project is deployed. You receive direct access on WhatsApp for updates, bug fixes, and continuous improvements.
START A CONVERSATION
Have an active project timeline in mind?
Skip the back-and-forth email delay and chat directly on WhatsApp right now.
03 / SELECTED WORK
CRAFTED FOR SPEED, PURPOSE & BUSINESS IMPACT.
Web Systems
Interiors Space & Architectural Studio
High-converting architectural and interior design studio portal featuring fluid viewport transitions, high-resolution project galleries, and direct client consultation booking.
HTML5CSS3 LayoutsJavaScriptResponsive Grid
LIVE DEMOLead Frontend Developer
Web Systems
Soul's Journey - Celestial Astrology Platform
Spiritual consultation and celestial reading platform engineered with interactive reading slot bookings, horoscope calculation algorithms, and mobile-first layouts.
ReactCSS ModulesNetlifyDynamic UI
LIVE DEMOFull-Stack Web Developer
Automation & APIs
Enterprise WhatsApp Automation & CRM Pipeline
Automated customer message routing system featuring instant FAQ auto-responders, lead qualification parsing, and continuous 24/7 WhatsApp business communication.
Node.jsWhatsApp Business APIWebhooksREST
LIVE DEMOAutomation Engineer
Web Systems
Interiors Space & Architectural Studio
High-converting architectural and interior design studio portal featuring fluid viewport transitions, high-resolution project galleries, and direct client consultation booking.
HTML5CSS3 LayoutsJavaScriptResponsive Grid
LIVE DEMOLead Frontend Developer
Web Systems
Soul's Journey - Celestial Astrology Platform
Spiritual consultation and celestial reading platform engineered with interactive reading slot bookings, horoscope calculation algorithms, and mobile-first layouts.
ReactCSS ModulesNetlifyDynamic UI
LIVE DEMOFull-Stack Web Developer
Automation & APIs
Enterprise WhatsApp Automation & CRM Pipeline
Automated customer message routing system featuring instant FAQ auto-responders, lead qualification parsing, and continuous 24/7 WhatsApp business communication.
Node.jsWhatsApp Business APIWebhooksREST
LIVE DEMOAutomation Engineer
Web Systems
Interiors Space & Architectural Studio
High-converting architectural and interior design studio portal featuring fluid viewport transitions, high-resolution project galleries, and direct client consultation booking.
HTML5CSS3 LayoutsJavaScriptResponsive Grid
LIVE DEMOLead Frontend Developer
Web Systems
Soul's Journey - Celestial Astrology Platform
Spiritual consultation and celestial reading platform engineered with interactive reading slot bookings, horoscope calculation algorithms, and mobile-first layouts.
ReactCSS ModulesNetlifyDynamic UI
LIVE DEMOFull-Stack Web Developer
Automation & APIs
Enterprise WhatsApp Automation & CRM Pipeline
Automated customer message routing system featuring instant FAQ auto-responders, lead qualification parsing, and continuous 24/7 WhatsApp business communication.
Node.jsWhatsApp Business APIWebhooksREST
LIVE DEMOAutomation Engineer
SaaS & Cloud
Administrative SaaS Dashboard & Management Hub
Multi-role telemetry and management console with real-time database queries, session auth guards, and responsive analytics components built for startup operations.
Next.jsTypeScriptTailwind CSSFirebase
LIVE DEMOFull-Stack Developer
Mobile Apps
Offline-First Android Productivity Application
Native Android application engineered for zero-latency local Room database caching, background notification triggers, and fluid 60fps animations on all hardware tiers.
KotlinAndroid SDKRoom DBMaterial 3
LIVE DEMOAndroid Engineer
Automation & APIs
Microservices Core API & Webhook Dispatcher
High-reliability backend gateway handling transactional webhooks, third-party payment event dispatches, and secure data routing with structured logging.
Node.jsExpressCloud FirestoreREST
LIVE DEMOBackend Developer
SaaS & Cloud
Administrative SaaS Dashboard & Management Hub
Multi-role telemetry and management console with real-time database queries, session auth guards, and responsive analytics components built for startup operations.
Next.jsTypeScriptTailwind CSSFirebase
LIVE DEMOFull-Stack Developer
Mobile Apps
Offline-First Android Productivity Application
Native Android application engineered for zero-latency local Room database caching, background notification triggers, and fluid 60fps animations on all hardware tiers.
KotlinAndroid SDKRoom DBMaterial 3
LIVE DEMOAndroid Engineer
Automation & APIs
Microservices Core API & Webhook Dispatcher
High-reliability backend gateway handling transactional webhooks, third-party payment event dispatches, and secure data routing with structured logging.
Node.jsExpressCloud FirestoreREST
LIVE DEMOBackend Developer
SaaS & Cloud
Administrative SaaS Dashboard & Management Hub
Multi-role telemetry and management console with real-time database queries, session auth guards, and responsive analytics components built for startup operations.
Next.jsTypeScriptTailwind CSSFirebase
LIVE DEMOFull-Stack Developer
Mobile Apps
Offline-First Android Productivity Application
Native Android application engineered for zero-latency local Room database caching, background notification triggers, and fluid 60fps animations on all hardware tiers.
KotlinAndroid SDKRoom DBMaterial 3
LIVE DEMOAndroid Engineer
Automation & APIs
Microservices Core API & Webhook Dispatcher
High-reliability backend gateway handling transactional webhooks, third-party payment event dispatches, and secure data routing with structured logging.
Node.jsExpressCloud FirestoreREST
LIVE DEMOBackend Developer
06 / DEVELOPMENT WORKFLOW
TRANSPARENT, MILESTONE-DRIVENEXECUTION FROM SCOPE TO LAUNCH.
Every step is documented, communicated directly without middlemen, and tracked against agreed deadlines.
STAGE 01
DISCOVER
Clarifying Business IntentWe identify your core objectives, target customer demographics, and technical parameters to establish exact milestones and avoid scope creep.
MILESTONE 01 / 06
STAGE 02
ARCHITECT
System & Data BlueprintWe plan database schemas, backend routing, state management, and asset pipelines to ensure optimal scalability and prevent rework.
MILESTONE 02 / 06
STAGE 03
DESIGN
Editorial UX & InterfacesWe build high-fidelity interactive wireframes and visual systems with responsive typography, dark luxury aesthetics, and high-conversion layouts.
MILESTONE 03 / 06
STAGE 04
BUILD
Clean Production CodeEngineering the web or mobile binary with strict type safety, modular component architecture, and zero bloated third-party dependencies.
MILESTONE 04 / 06
STAGE 05
TEST
Cross-Device QA & AuditRigorous verification across desktop, tablet, Android, and iOS browsers. Performance, Core Web Vitals, and security headers are strictly validated.
MILESTONE 05 / 06
STAGE 06
LAUNCH
Production & HandoverSeamless deployment on Vercel or cloud infrastructure with domain configuration, automated backups, and complete client operational walkthrough.
MILESTONE 06 / 06
05 / CAPABILITIES & SERVICES
ENGINEERING SPECIALIZATIONSBUILT TO MOVE YOUR BUSINESS FORWARD.
Custom websites engineered for speed, search visibility, and maximum conversion rates. No sluggish WordPress bloat — only clean, accessible code.
Sub-second page load
Lighthouse 95+ scores
Fully responsive
Built-in SEO
ReactNext.jsTypeScriptTailwind CSS
Custom Android applications in native Kotlin/Java. Optimized for 60fps, offline-first reliability, and battery-efficient services.
Native compilation
Offline Room DB
Push notifications
Play Store ready
KotlinJavaAndroid SDKJetpack
Admin panels, multi-tenant dashboards, and full-stack products with secure sessions, RBAC, and analytics.
Role-based auth
Real-time sync
Serverless architecture
Analytics dashboards
Next.jsNode.jsFirestoreFirebase
Automated WhatsApp workflows that answer inquiries 24/7, qualify leads, deliver receipts, and book appointments.
Instant replies 24/7
Reduced support cost
Human agent handoff
CRM integration
WhatsApp APINode.jsWebhooksCloud Functions
Secure backend gateways connecting websites, apps, and tools to payment providers and databases with low latency.
Low-latency execution
Encrypted webhooks
Audit logging
Clean API docs
Node.jsExpressFirestoreREST
07 / Skills & ExperienceWorking with Latest
Working with Latest
Technologies & Stack
07 / CLIENT ASSURANCE
DELIVERY COMMITMENTS& ENGINEERING INTEGRITY.
Protecting your investment with professional accountability, transparent codebases, and zero proprietary lock-in.
100% Code & Asset Ownership
All repositories, domain records, API keys, and deployment accounts belong entirely to you from day one. Zero vendor lock-in.
VERIFIED STANDARD
Milestone-Based Escrow Safety
Work is delivered against clear iterative milestones. You review and verify each development phase before advancing.
VERIFIED STANDARD
Strict Quality & Security Audits
Every codebase is audited for XSS protections, sanitized input validation, clean environment variables, and zero memory leaks.
VERIFIED STANDARD
Guaranteed 100% Launch Support
We do not drop the code and leave. You receive post-launch verification, DNS cutover support, and direct engineer messaging.
VERIFIED STANDARD
08 / COMMON QUESTIONS
FREQUENTLY ASKEDQUESTIONS & ANSWERS.
Concise, transparent answers regarding services, technology choices, and engagement models.
Pratik Das is a freelance full-stack web and mobile developer based in India. With over 4 years of experience, he builds high-performance custom websites, native Android applications, SaaS administrative hubs, and WhatsApp CRM business automations for clients worldwide.
09 / GET IN TOUCH
LET'S BUILD SOMETHINGEXTRAORDINARY.
Have a new product idea, redesign, or automation workflow? Share your scope below and let's start right away.
DIRECT COMMUNICATION
Connect directly on your preferred channel for prompt responses.
LOCATION & AVAILABILITY
Operating remotely across India (IST) and collaborating with clients in US, UK, Europe, and Asia-Pacific time zones.
DIRECT ADVISORY
BOOK A FREE PROJECTEVALUATION CALL.
Discuss your system requirements, technical stack choices, and realistic timelines directly with Pratik — no pressure, zero jargon.