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Services

Senior engineering, packaged into clear engagements.

Pick the shape that matches your situation. Each engagement starts with a free 30-minute call so we can both decide if it's a fit.

Web App Development

Production-grade Next.js platforms with auth, payments, and CMS.

Full-stack Next.js builds — App Router, Server Components, Mongo / SQL, Razorpay, JWT-based auth, Cloudinary media, and a hand-built CMS your team can actually run without me.

3–6 weeksFounders launching a v1, agencies needing a senior build partner, or teams replacing a slow legacy site.
  • Next.js 16 App Router + TypeScript codebase
  • Custom design system & responsive UI
  • Auth (JWT / JWE httpOnly cookies) and role-based access
  • Razorpay or Stripe payment flows with server-side verification
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AI & RAG Systems

Voice agents, RAG pipelines, and LLM features that actually ship.

Real-time AI integrations grounded in your data — STT → retrieval → LLM → TTS pipelines, document understanding, and chat experiences with citations, evals, and cost controls.

4–8 weeksTeams adding their first serious AI feature, or anyone who needs a voice / RAG agent done properly.
  • RAG pipeline with vector DB (Pinecone) and metadata filtering
  • STT + TTS (Deepgram) and LLM orchestration (Groq / OpenAI)
  • Chunking + embeddings (Hugging Face / OpenAI)
  • Streaming responses with graceful degradation on partial failures
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Internal Tools & CRMs

Multi-role dashboards, lead engines, and admin platforms.

Custom internal platforms — multi-role CRMs, content management, ops dashboards, and inventory / pipeline trackers — engineered for high-volume daily use.

4–6 weeksTelesales teams, agencies, NGOs, and operations teams outgrowing spreadsheets.
  • Role-based access (Admin / Manager / Operator / Advisor)
  • Bulk ingestion (XLSX / CSV) with deduplication and validation
  • Real-time-ish updates (poll-sync, optimistic UI, debounced autosave)
  • Filtering, search, and detail-modal-driven workflows
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Advisory & MVP Engineering

A senior pair-programmer for short bursts and decisions that matter.

Architecture reviews, code reviews, MVP scoping, and pairing sessions — strategic technical guidance without a full-time hire.

Monthly retainerFounders without a senior engineering voice, or teams about to make an architectural call they can't unmake.
  • Architecture review with prioritized recommendations
  • Async PR / code reviews on a defined cadence
  • MVP scoping & build-vs-buy guidance
  • Pairing sessions on tricky problems
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Available for freelance & internships

Got an idea worth shipping? Let's talk.

I'm booking a small number of new engagements. Tell me about your project and I'll respond within one business day.

Start a projectsachannishchal@gmail.com
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