Our Portfolio

Chalwiha evaluates its project success based on concrete performance metrics: faster load times, increased security, and business conversion growth. Our portfolio is not a simple collection of screenshots. It is a record of technical problem-solving. Each case study we showcase details the client's legacy system bottlenecks, our custom software architecture designs, and the post-launch ROI metrics. This commitment to data transparency ensures you can audit our code quality, design principles, and delivery capabilities.

We audit all launches using Google's Lighthouse to verify performance metrics. We target First Contentful Paint (FCP) scores under 1.0 second, Largest Contentful Paint (LCP) under 1.5 seconds, and Cumulative Layout Shift (CLS) of exactly zero. We also audit serverless database calls to ensure API latency remains below 100ms under load. By monitoring these parameters, we guarantee that our web portals and mobile backends deliver sub-second response times, reducing bounce rates and maximizing conversions.

Through this focus on performance, Chalwiha has successfully deployed digital assets for enterprise brands and growth startups across Delhi NCR and Eastern India. Our case studies cover headless e-commerce migrations, custom SaaS dashboards, native mobile app publishes, and multi-city SEO campaigns. These projects demonstrate our ability to connect design, code, and growth strategies to build digital excellence. Contact a Chalwiha technology architect today to discuss how we can optimize your operations.

An enterprise brand came to Chalwiha with a major database bottleneck: their legacy WooCommerce store was loading slowly (LCP > 4.5 seconds), crashing during holiday sales, and losing customers at checkout. We recommended migrating to a decoupled, headless e-commerce architecture. We set up Shopify's commerce engine as the backend, using GraphQL API gateways to retrieve catalog data. We built the store's user interface using Next.js 14 with static site pre-renderings, and deployed it to global CDN edge networks. By decoupling the codebase from the database dashboard, we prevented backend content edits from bottlenecking frontend page delivery. This architecture also gave the client absolute freedom to customize checkout templates and visual grids without changing backend server settings, maximizing their code scalability.

By separating the content display from the database engine, the store loaded instantly (LCP < 1.2s). Customers browsed products, applied filters, and searched catalogs without page reloads. We also built a custom shopping cart that loaded in a slide-out panel, integrating Stripe Elements directly into the React code. This secure checkout encrypted credit card details without touching frontend servers, eliminating security vulnerabilities and increasing checkout success rates.

Post-launch, the store's performance metrics exceeded all standards. The Lighthouse speed score rose from 34/100 to 98/100, cart abandonments dropped by 35%, and mobile conversion rates doubled. We also integrated webhook sync flows that updated inventory counts, printed shipping labels, and sent transactional SMS notifications automatically. This case study demonstrates how headless engineering delivers fast, secure, and high-converting e-commerce experiences.

A SaaS startup hired Chalwiha to design and code a custom billing and user subscription dashboard. The client needed a secure multi-tenant database to manage user accounts, track usage metrics, process recurring billings, and generate PDF receipts automatically. We built the backend using Node.js, Express, and serverless PostgreSQL with Drizzle ORM. We designed type-safe database tables with strict inputs to prevent injection vulnerabilities. This type-safe database mapping ensured that database updates, schema changes, and query executions were validated at compile time, eliminating syntax errors before deployment. We also configured connection pooling rules to manage database connections efficiently under sudden user traffic spikes.

We built the user dashboard in React, using modular components and Tailwind CSS configurations. We integrated Stripe billing APIs to manage monthly subscriptions, plan upgrades, and failed payment alerts. We also set up custom user permissions, letting managers assign roles (admin, editor, viewer) to team members. To ensure data safety, we configured daily automated backup schedules that saved encrypted copies of the database to secure cloud storage networks.

The SaaS dashboard compiled successfully and launched with zero downtime. We set up GA4 analytics custom events to track user signups and plan conversions. The client's support team reported a 60% reduction in billing queries, thanks to the automated invoicing and self-service dashboard tools. This case study highlights our ability to build secure, scalable, and user-friendly software that simplifies operations and drives growth.

A logistics provider needed a mobile application to coordinate delivery routes, track vehicle locations, and capture digital signatures from customers. The app needed to work offline in low-connectivity areas and sync data automatically when back online. We built the app using Flutter, compiling a single, high-performance codebase for both Android and iOS devices. We designed a local SQLite database on the phone to store data offline. We built background sync protocols that verified database changes, resolved offline conflict errors automatically, and compressed data payloads before sending them. This optimization allowed drivers to upload delivery logs instantly even on weak 2G cellular networks.

We built a serverless API gateway using AWS Lambda and API Gateway, letting the app sync data securely via OAuth2 connections. We integrated Google Maps APIs to plan optimal delivery routes, calculate distances, and show real-time vehicle coordinates. During our QA phase, we coordinated a closed beta test with 20 users, monitoring crash analytics and SDK performance. We resolved all layout problems, memory issues, and sync errors before publishing the app.

We published the app on the Google Play Store and Apple App Store, mapping all developer console guidelines and listing assets. Post-release, the logistics provider reported a 30% increase in route planning efficiency and a 40% reduction in delivery verification delays. The app maintained an average rating of 4.8 stars with zero crashes. This case study demonstrates our ability to deliver fast, secure, and reliable mobile products.

A regional services company was struggling to rank for competitive keywords in search engines and acquire local leads. We implemented our custom local SEO directory framework, creating dedicated landing pages for their services across major cities. We mapped all target paths, wrote local meta descriptions, and registered pages inside the XML sitemap. We also set up LocalBusiness structured schemas for every city. This local SEO configuration enabled the client to rank on local map queries, capturing search visibility in key business hubs across Jharkhand and West Bengal. We also created optimized CTA buttons to guide visitors toward quick phone calls and quote requests.

By injecting city-specific coordinates and postal codes into the JSON-LD schemas, search engine crawlers indexed the pages for local search queries quickly. We optimized page layouts for speed, keeping load times under 1.2 seconds, and placed clear contact form capture grids on every page. We also connected forms to the client's Zoho CRM via secure webhook connections, letting their sales team respond to inbound leads within minutes.

Within six months, the local SEO campaign delivered exceptional ranking gains. The client ranked on the first page of Google for 75% of their targeted local keywords, driving a 150% increase in organic search traffic and doubling monthly inbound leads. This case study shows how structured local SEO landing pages help businesses establish search engine authority and acquire local users at scale.

An industrial distributor came to Chalwiha with a major operations bottleneck: their employees were spending over 20 hours per week manually copying invoice details, inventory data, and shipping orders between three legacy ERP systems. We recommended building a custom, automated serverless workflow tool to sync these databases. We designed a central control panel in React and connected the databases using custom Node.js webhook triggers and API endpoints. This modular workflow tool bridges legacy data gaps, letting corporate departments share resources and sync inventory counts in real-time, removing manual tasks entirely from employee schedules.

Our developers set up automated sync rules that validated data transfers, mapped billing fields, and resolved inventory errors automatically. We integrated the dashboard with Slack APIs, sending real-time updates of successful deliveries and payment failures to corporate channels. We also set up automated email notifications using SendGrid, sending customer tracking codes and receipt attachments without manual inputs.

The automated workflow tool compiled and launched with immediate operational impact. By eliminating manual data entry, the client reduced processing errors by 95% and saved over 80 developer-equivalent hours per month, allowing staff to focus on high-priority operations tasks. This case study demonstrates how custom workflow automation streamlines corporate operations and maximizes staff efficiency.

To maintain high-quality delivery across all projects, Chalwiha follows a strict technical auditing lifecycle. Before any code is pushed to production, our QA team runs cross-device visual checks, browser compatibility audits, and Lighthouse performance checks. We target perfect speed scores across mobile and desktop widths, optimizing Largest Contentful Paint (LCP), Interaction to Next Paint (INP), and Cumulative Layout Shift (CLS) metrics. By running automated script compilers and auditing third-party code packages, we reduce technical debt, prevent page layout breaks, and ensure code complies with accessibility standards.

Our security audits include pen-testing form captures, checking API key credentials, configuring HTTPS redirect protocols, and managing content security policies (CSP) to block malicious scripts. We also configure Web Application Firewalls (WAF) to block bad bot traffic, protect databases from SQL injection vulnerabilities, and verify SSL certificates. This security checklist guarantees that our systems launch with enterprise-grade protection. Additionally, we run automated dependency alerts to flag outdated packages, patching vulnerabilities before any software code is deployed to staging servers.

Post-launch, we provide ongoing maintenance support under our custom SLAs. We conduct monthly speed audits, update package dependencies, optimize database query execution plans, and check CDN caching behaviors to keep platforms running fast and secure. This ongoing technical care ensures that your digital assets remain high-performing business tools over their entire lifecycle, providing long-term value and reliability.