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English
$
USD
I will build a langgraph ai agent with real state, retries and error handling
Gaurav S
About this gig
Most "AI agents" are a prompt in a while-loop. They work in the demo, then hit a real user and hang, loop forever, or silently return nothing - because there is no state, no retry path, and no defined behaviour for failure.
I build agents as actual state machines. Every step is a node, every failure has an edge, and the graph can loop deliberately instead of by accident.
I built a corrective-RAG copilot this way: an LLM grades each retrieved chunk, and if grading kills the retrieval the graph loops back with a rewritten query rather than answering from what survived. A chain cannot express that cycle. That is the entire argument for building it as a graph.
Backend engineer by day - Spring Boot, Go and Kafka in production at a US investment bank and a US insurer - so what I hand you is a service with error handling, not a notebook.
WHAT I NEED FROM YOU
What the agent must do, what tools or APIs it calls, and what it should do when a step fails. If you do not know the last one yet, that is fine - deciding it is part of the work.
Get to know Gaurav S
Gaurav S
Backend AI Systems Engineer
- FromIndia
- Member sinceFeb 2024
- Avg. response time2 hours
- Last delivery2 years
Languages
English, Hindi
Backend engineer with nearly four years of production experience building event-driven systems and shipping LLM-backed services into live products at a US investment bank and a US insurance provider.
I specialize in what most AI work skips: putting a model inside a service that already has traffic, tests and a release process it cannot break. Retrieval quality, evaluation harnesses, defined failure behavior.
Spring Boot, Go, Python, Kafka, Kubernetes, AWS, LangChain, LangGraph, RAG, vector databases, QLoRA.
Available full time.
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FAQ
Why LangGraph and not CrewAI or AutoGen?
LangGraph gives you an explicit graph you can reason about and debug. The others hide control flow behind agent roles, which is fine until something breaks and you cannot tell why. If you are committed to another framework, say so and I will work in it.
Do you provide the LLM API costs?
No. You provide your own API key. I will tell you the expected cost per run before I build.
Can it use my internal APIs?
Yes - that is usually the point. Give me the docs or an OpenAPI spec.
What if I do not know how many nodes I need?
Message me before ordering with what you want it to do and I will tell you the tier honestly, even when that is the cheaper one.
Is the code mine?
Yes, entirely, with no attribution required.
