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AI agent developer

AI agents that do the work, not just talk about it

I'm Abhishek Gajera, an AI agent developer for startups and businesses. I build agents that take real actions in your systems: answering customers with live order data, drafting purchase orders from sales, searching people the way a recruiter thinks. They're built with tool calling, memory and retrieval, and they stay safe with guardrails and human approval where it matters.

What an agent can take off your plate

Where AI agents pay for themselves

A good agent replaces a repetitive job a person does today, inside the tools they already use. These are the kinds I build.

Customer support agents

Answer questions with live data from your orders, inventory and delivery systems, and hand over to a person when they should.

Operations agents

Watch sales, stock and invoices, then draft the next purchase order or task for someone to approve.

Search and research agents

Turn a plain-language request into a precise search over your own data, using semantic and structured retrieval together.

Voice and chat agents

Handle calls and chats in a contact centre, keep the conversation's context, and log it without leaking personal data.

Document agents

Read invoices, resumes and forms, pull out the fields you need, and check them against a schema before they reach your system.

Copilots inside your product

Streaming assistants your own users talk to, with multi-turn memory and access to the parts of your app they're allowed to touch.

Proof

AI agents I've shipped to production

Not demos. These run for real businesses.

Commerce · Starn22

Clara

A streaming AI assistant for a multi-product commerce platform in Chile. It keeps multi-turn memory and uses tool calling to work with live orders, inventory and delivery, so answers come from the business's real data.

Operations · Starn22

Purchase-order agent

Reads POS sales velocity and supplier invoices, then drafts purchase orders. Nothing goes out until a person approves it: human in the loop by design.

Recruiting · Baysten

AI matching and query analysis

An LLM reads each recruiter search, then a FastAPI engine runs hybrid retrieval over Weaviate, mixing semantic embeddings with structured scoring. The model sits behind a provider-agnostic layer with retries, circuit breakers and fallbacks.

Contact centre · Lightning

Voice and chat bots

Bots on Amazon Lex V2 and Amazon Connect with Python Lambda fulfilment, conversation state in PostgreSQL and PII-safe logging.

AI evals · Swe-bench

Coding-agent evaluation

Repository-level engineering tasks with reproducible failures and objective tests, used to train and evaluate autonomous coding agents. The same discipline goes into testing the agents I build for clients.

How I build them

An agent is a system, not a prompt

Most AI agents fail on the parts around the model. This is what goes into every one I ship.

  1. Scope one job it can do well

    We pick the task, the systems it touches and what "done right" looks like, using real examples from your business.

  2. Give it the right tools, and only those

    Typed tool calls into your APIs and database, with the least access the job needs.

  3. Ground it in your data

    Retrieval-augmented generation over your documents and records: pgvector, Weaviate or Qdrant, with hybrid search and reranking.

  4. Put guardrails and approval where they matter

    Schema-validated outputs, PII masking, and a person approving anything that spends money or changes something important.

  5. Measure it before and after launch

    Prompt versioning, regression tests against saved examples, and monitoring with Sentry and New Relic, so you can see what it did and why.

Stack

Tools I build agents with

OpenAIAnthropic ClaudeAzure OpenAILlama · Mistral (Ollama)LangChainTool callingStructured outputsRAGpgvectorWeaviateQdrantPythonFastAPIDjangoNode.jsTypeScriptNext.jsStreaming chat UIsAWS LambdaAmazon Lex V2Amazon ConnectPostgreSQLRedis

Questions

Hiring an AI agent developer: FAQ

What does an AI agent developer do?

An AI agent developer builds software where a language model decides which steps to take and then takes them: looking things up, calling your APIs, drafting documents, updating records. The work is less about the prompt and more about the system around it: which tools the agent may use, what it remembers, how it is checked, when a person has to approve, and how you can see what it did.

Which models and frameworks do you use?

OpenAI and Anthropic Claude for most work, Azure OpenAI where a client needs it, and open models such as Llama or Mistral through Ollama when data has to stay in-house. LangChain where it helps, plain Python or Node.js where it does not. I keep the model behind a provider-agnostic layer so it can be swapped later.

Can an AI agent work with the tools my business already uses?

Yes. An agent is only as useful as the systems it can reach, so most of the work is connecting it to what you already run: your database, CRM, inventory, ticketing or email, through their APIs. If something has no API, we look at what can be read or written safely another way.

How do you stop an AI agent from making costly mistakes?

By limiting what it can do and checking what it does. Agents get only the tools they need, outputs are validated against a schema, sensitive data such as PII is masked, and anything that spends money or changes something important waits for a person to approve it. Every run is logged, and prompt changes are tested against saved examples before they ship.

How much does it cost to build an AI agent?

It depends on how many systems the agent touches and how much of its work needs review. The usual path is a small, scoped first version that does one job well, measured against real examples, and then extending it. Tell me what you want it to do and I will give you a clear estimate.

Got a job for an AI agent?

Tell me which task eats your team's time and which systems it touches. I'll tell you whether an agent fits, and how I'd build it.