Artificial Intelligence Engineer

Vindler Solutions is a New York based AI consultancy building production systems for clients in the US and Europe. We are hiring an AI engineer to join one of our longest running engagements: a conversational AI product used by executives, live in production and under continuous development with a small team.

What you will do

• Design and build agent flows on LangGraph: state machines, tools, checkpointing, conditional routing, and the recovery paths for when a model call does not return what the flow expects.
• Own the prompt layer as code: versioned, tested, reviewed in pull requests like everything else.
• Build evaluation and regression checks so a change to one flow does not quietly degrade another.
• Work on retrieval (pgvector), document ingestion (PDF, DOCX), and the data model behind long-running conversations.
• Ship frontend changes when the feature needs them. You do not need to be a frontend specialist, but you should be able to read and modify a Next.js and TypeScript codebase without help.
• Write issues, pull request descriptions and short design notes in English.

How we work

You join a small team of vetted senior engineers, each of them accountable for the systems they ship. The work is advanced AI applications in production, customer facing, for clients in the US and Europe. No prototypes, no proofs of concept that never meet a user.

We work with the newest AI tooling every day, and we expect you to. The standard is that you understand every line that ships under your name and can defend it in review.

What we are looking for

• Three or more years building backend systems in Python, at least one of them shipping LLM features to real users.
• Hands-on LangGraph or LangChain experience in production, including the parts that break: token limits, flaky tool calls, state that grows without bound.
• Comfort with Postgres beyond CRUD: migrations, indexes, vector search.
• Written and spoken English good enough to run a technical discussion with a client. This is mandatory, and the first interview is in English.
• Strong academic background.

Vindler Solutions, https://vindler.solutions/?utm_source=linkedin&utm_medium=social&utm_campaign=hiring-ai-engineer-2026-10