Kumar Harsh Available for freelance work

Services

(4)

High-velocity, production-grade freelance engineering for founders, venture-backed startups and modern engineering teams.

Agents

Autonomous AI agents and swarms

Turn manual operations into self-directed AI workflows, with multi-step reasoning, external tool calling, browser actions and reliable execution.

  • Multi-agent planning and execution swarms
  • Custom tool calling (Slack, CRM, SQL, APIs)
  • Human-in-the-loop review guardrails
  • Token budget limits and observability logging
Typical timeline: 2–3 weeksRead the detailsRead the detailsRead the detailsRead the detailsEstimate this
Sprint

Rapid 1–2 week AI MVP sprint

Zero to one: turn your idea into a production-ready, beautifully designed web app, complete with streaming LLM UX, auth, database and payments.

  • Full-stack React 19, TypeScript and Node architecture
  • Streaming AI chat and generation interfaces
  • User authentication, database models and payment hooks
  • Cloud deployment with CI/CD ready on day 14
Typical timeline: 10–14 daysEstimate this
RAG and context

Enterprise RAG and context memory

Ground your AI in private documents, knowledge bases and user session context, modelled on the architecture behind Memory.

  • High-recall vector search and hybrid semantic retrieval
  • Dynamic document chunking and contextual re-ranking
  • Multi-turn session memory across visits
  • Rigorous anti-hallucination verification checks
Typical timeline: 2–3 weeksEstimate this
Resilience

AI reliability and chaos engineering

Eliminate rate-limit crashes, model downtime and flaky socket drops, stress-tested with the Hiccup chaos engine.

  • Multi-model fallback cascades (Gemini, OpenAI, Anthropic)
  • Exponential backoff retry budgets and circuit breakers
  • Flaky connection simulation and chaos testing suite
  • Sub-500ms time-to-first-token latency tuning
Typical timeline: 1–2 weeksEstimate this

The freelance edge

Full-stack AI. Not just prompt scripts in notebooks, but production systems with streaming UX and vector infrastructure

1–2wzero-to-one rapid AI MVP sprint

From brief to production

How a sprint runs
  1. i.

    Scope

    Tell me what you want to build. You get a scope and timeline estimate, with a direct reply within 12 hours.

  2. ii.

    Architect

    Agents, tools, retrieval and fallbacks are planned before the first line of code is written.

  3. iii.

    Ship

    A production-ready app with streaming UX, auth and a database goes live, with CI/CD ready on day 14.

  4. iv.

    Harden

    Guardrails, token budgets, observability and model fallbacks keep it running when a provider does not.

Plan your AI build

Interactive scope estimator

Select your requirements for an instant timeline estimate and deliverables checklist, then send a tailored brief straight to my inbox.

i.

Select the project scope

ii.

Choose a timeline

iii.

Architecture add-ons, optional

Estimated scope and deliverables

Autonomous AI Agent

10–14 Days Sprint

Includes: ReAct agent loop, tool integration (APIs, DB, Slack), human-in-the-loop review and token budgeting.

No add-ons selected.

Launch this brief Direct response within 12 hours, guaranteed.