AI & Machine Learning
We design and deploy production-ready AI systems — from RAG-based chatbots trained on your custom data to full NLP pipelines, computer vision models, and agentic AI workflows that actually work in the real world.
Core SpecialtyRAG-Based AI Chatbots (Custom Knowledge)
We specialize in Retrieval-Augmented Generation (RAG) chatbots — AI systems that answer questions intelligently using your own documents, databases, or knowledge base. These aren't generic chatbots: they retrieve precise context from your data, pass it to a language model, and generate accurate, grounded responses. We've built these for hotel websites, SaaS platforms, and exam prep tools — one client specifically hired us to "fix and improve" their existing RAG chatbot and rated the engagement 5 stars.
AI Voice Agents
We build conversational AI voice agents using VAPI and Whisper API — capable of conducting interviews, answering support queries, or guiding users through multi-step workflows via natural spoken conversation. Our AI Voice Agent for TCF (French exam preparation in Canada) is a live production example of this capability deployed for real users.
AI Pipelines & Custom ML Models
We build end-to-end AI pipelines for analytics, classification, and intelligent decision-making — including custom NLP models for text classification, sentiment analysis, intent detection, and document processing. We also work with Computer Vision (CV) for image recognition and processing use cases. Our Call Analyser and Geeker portfolio projects demonstrate these capabilities.
AI Agent Development (Agentic AI)
We build autonomous AI agents that take multi-step actions — browsing the web, reading and writing documents, calling external APIs, and completing complex tasks with minimal human supervision. Using LangGraph and AutoGen, we design agent workflows that genuinely automate knowledge work processes end-to-end.
Common Use Cases
Full-Stack Development
13+ years of experience building robust, scalable applications end-to-end. We handle everything from database schema design and REST API architecture to pixel-perfect responsive frontends.
13 Years ExperienceBackend Development & REST APIs
We build high-performance backend systems and REST APIs using Python's top frameworks. Our APIs are cleanly structured, versioned, well-documented, and production-ready — with authentication, rate limiting, error handling, and comprehensive test coverage built in from day one. We've delivered backends for hotel management systems, SaaS marketplaces, and the Roompex booking platform.
Frontend Development
We build modern, responsive, performance-optimized frontends that users love. From component-driven React applications to full Next.js SSR/SSG websites, our frontend work is built with accessibility, SEO, and user experience at its core. One client described our React SaaS frontend work as "excellent UI/UX for a modern SaaS product" — and immediately hired us for a second project.
Database Architecture & Design
We design normalized, scalable database schemas and choose the right database for your use case — relational PostgreSQL for complex business data, MongoDB for flexible document storage, Elasticsearch for full-text search, and vector databases for AI applications. We also design efficient query structures and indexing strategies for high-performance reads at scale.
API Integration & Third-Party Services
We integrate any third-party API cleanly into your platform — payment processors, social logins, communication tools, analytics, AI services, and beyond. Our experience covers dozens of major platforms, and we write robust, well-tested integration code that handles edge cases, rate limits, and failures gracefully without manual intervention.
Common Use Cases
SaaS & Web App Development
From zero to production-ready SaaS. We've built multi-role platforms with subscriptions, payments, analytics, and complex business logic — all delivered on time, within budget, every time.
SaaS SpecialistSaaS Platform Architecture from Scratch
We architect and build complete SaaS products from zero — multi-tenancy, subscription tiers, user management, onboarding flows, and billing — all designed for scale from day one. Recent work includes a French exam prep SaaS ($4,112 project with Supabase + GPT + Stripe), a hotel installation management platform, and a marketplace MVP with complex matching and role logic.
Subscription Billing & Payments (Stripe)
We implement complete Stripe-powered billing systems — subscription plans, free trials, plan upgrades and downgrades, proration, invoicing, webhook event handling, and customer portal integration. We've done this for multiple SaaS clients. We handle all the complexity so your users get a seamless, reliable billing experience from day one.
Analytics & User Tracking Integration
We integrate comprehensive analytics tooling so you understand exactly how users interact with your product — session recordings, funnel analysis, error tracking, heatmaps, and custom event reporting. This data powers data-driven product decisions from the moment you launch, rather than months later.
CMS & E-Commerce Platforms
We build, customize, and extend major CMS and e-commerce platforms — headless WordPress, high-performance Shopify stores with custom Python apps (176 hours on a Shopify project in our history), full Magento or BigCommerce implementations with complex product catalogs, and custom checkout and integration flows.
Common Use Cases
Cloud & DevOps
We design, deploy, and maintain production-grade cloud infrastructure that scales with your traffic, stays secure under pressure, and never lets your users down.
AWS ExperiencedAWS Cloud Architecture
We're experienced with the full range of AWS services needed to run production workloads reliably and cost-effectively. This includes serverless architectures with Lambda and API Gateway, static asset delivery via S3 and CloudFront, auto-scaling compute with EC2, and AI/ML capabilities via Amazon Bedrock. We design for high availability, fault tolerance, and cost optimization from the very start.
CI/CD Pipelines & Docker
We build automated deployment pipelines that take code from commit to production safely, repeatably, and quickly. This includes automated testing, Docker containerization, staging environments, blue-green deployments, and rollback capabilities. Our setups mean your team can ship multiple times per day with confidence — not anxiety.
Monitoring, Observability & Alerting
We set up comprehensive monitoring stacks so you always know what your system is doing — before your users find out something is wrong. Metrics, logs, traces, and alerts configured correctly so the right people get notified at the right time. We use both open-source tooling and cloud-native solutions depending on your stack and budget.
Multi-Cloud & Alternative Hosting
Beyond AWS, we're experienced with Google Cloud Platform, DigitalOcean, and RealCloud for projects where cost, geography, or specific managed services make them a better fit. We can also assist with on-premise or hybrid setups using MinIO for S3-compatible object storage and self-hosted service infrastructure.
No-Code & Low-Code Development
Certified expertise in the leading no-code platforms. Build faster without sacrificing quality, scalability, or the ability to integrate with complex APIs and AI services.
Certified ExpertWeWeb + Xano + Supabase — Our Core No-Code Stack
This is where our no-code expertise is deepest and most battle-tested. WeWeb for a polished, fully custom frontend; Xano or Supabase as a powerful backend with real database logic, authentication, role management, and clean APIs. This combination delivers the speed of no-code with the power and flexibility of a proper application architecture. A verified client explicitly stated: "Rimal has very good knowledge of WeWeb, Xano, and Supabase."
Bubble & Flutterflow Applications
We build complex, data-driven web applications in Bubble and cross-platform mobile apps in Flutterflow — complete with custom plugins, multi-step workflows, API integrations, and database design. These platforms let us ship fully functional MVPs in a fraction of traditional development time while remaining genuinely scalable and maintainable for the long term.
N8N & Workflow Automation
We build complex automation workflows in N8N — connecting apps, databases, APIs, and AI services into fully automated pipelines that run without manual intervention. From lead routing and CRM syncing to AI-triggered workflows and scheduled data processing, N8N lets us automate processes that would otherwise require custom backend development. One of our portfolio projects builds an entire AI Interview System on VAPI + N8N + vector search.
AI-Powered No-Code Platforms
We combine AI capabilities with no-code platforms to create truly intelligent applications — chatbots embedded in WeWeb apps, AI-powered workflows in N8N, vector search integrated into Supabase databases, and full AI Interview Systems using VAPI + vector databases. We're experienced with StackAI, Kore.ai, Yellow.ai, and Chatbot.com for deploying AI interfaces without writing model code from scratch.
Blockchain & Web3 Development
Blockchain-certified by Coursera (July 2025). We integrate Web3 features into existing platforms or build decentralized applications from scratch — smart contracts, NFTs, wallets, and beyond.
Certified · ID: 06FPZQ102LJYSmart Contract Development & Deployment
We write, test, and deploy Solidity smart contracts on the Ethereum blockchain — covering ERC-20 token standards, ERC-721/ERC-1155 for NFTs, custom business logic contracts, access control patterns, and upgrade proxy patterns. Every contract goes through thorough testing including edge cases before any mainnet deployment.
Web3 Frontend Integration
We connect your React/Next.js frontend to the blockchain — wallet connection (MetaMask, WalletConnect), reading on-chain data, triggering contract transactions, and handling the complete UX of a Web3 application. We've delivered multiple blockchain Web3 projects all rated 5 stars, with one client noting "this was my second project with Karun and once again he delivered excellent work, professionally and on time."
NFT Platforms, Minting & Web3 Features
We build complete NFT platforms — minting contracts, metadata management via IPFS, collection display interfaces, marketplace features, and wallet-gated content. Whether you're launching a PFP collection, a gaming asset system, or utility NFTs for your SaaS product, we handle the full technical implementation from contract to frontend.
Automation, Data & Collaboration
We automate the repetitive, manage big data at scale, and build real-time collaboration infrastructure — freeing your team to focus on what actually creates value.
Web Scraping & Data Extraction
We build robust, maintainable web scrapers for any use case — price monitoring, lead generation, research aggregation, or competitive intelligence. Our scrapers handle JavaScript rendering (Selenium, Playwright), pagination, rate limiting, proxy rotation, and structured output to your database or dashboard. We've delivered a "Superstar scraping tool with data visualization" rated 5 stars.
Big Data & Analytics Pipelines
For data-intensive applications, we architect and build scalable data pipelines using PySpark and Databricks — processing, transforming, and aggregating large datasets efficiently. This includes ETL pipelines, streaming data processing, and data warehousing patterns for analytics-heavy workloads that can't fit in a single-machine query model.
Video Collaboration, Email & Communication Infrastructure
We integrate or deploy real-time video and collaboration infrastructure using WebRTC — including self-hosted Jitsi and BigBlueButton deployments for organizations that need privacy and control over their video calls. We also handle full business email setup, transactional email integration for notifications and receipts, and communication API integration with Twilio for SMS/voice.
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