Backend Software Engineer – AI & Agentic Systems

Kpler

Backend Engineer developing the platform for AI products at Kpler to assist analysts and customers. Join to design and ship production services integrating language models in commodity markets.

Posted 6/1/2026full-timeBudapest • 🇭🇺 HungaryMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

Python

About the role

Key responsibilities & impact

Kpler has an opening for a Backend Engineer to build the platform behind our AI products: the services that power LLM agents serving analysts and customers across the commodity markets we cover.
You will design and ship production services, integrate language models and external tools, and follow the "You build it, you run it" philosophy, owning your code from development through production.
This role offers a stimulating environment where you can build state-of-the-art GenAI solutions that directly impact how thousands of users interact with complex data.
You'll work at the frontier of AI and UX, with the freedom to experiment, learn, and shape the future of AI-powered data analysis.

Requirements

What you’ll need

Production backend experience. Mid: roughly 5+ years of production Python (or another typed language with comparable depth). Senior: 7+ years, including ownership of services in production.
Strong async fundamentals. You can reason about `asyncio` event loops, cancellation, exception propagation, and back-pressure.
Hands-on with LLM systems. You have shipped applications that use language models in production (tool calls, structured outputs, streaming, retries, evaluation, tracing), and can speak concretely to the engineering problems each of those raises.
Production observability. When an agent gives a wrong answer, you find the cause in the traces. You instrument new code so the next failure is debuggable too.
Engineering judgement. You make systems simpler when you touch them. You trust subtraction more than abstraction, and you can defend a design choice under questioning.
Critical user of AI dev tooling.
Please note, this is not not a research role. We build production systems that use research. This is also not a prompt-engineering role.

Benefits

Comp & perks

Kpler is committed to providing a fair, inclusive and diverse work-environment.

ATS Keywords

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Hard Skills & Tools

PythonasyncioLLM systemsproduction servicesobservabilitydebuggingengineering judgementdata analysisGenAI solutionsevent loops

Soft Skills

ownershipcritical thinkingproblem-solvingcommunicationdesign judgementadaptabilitycollaborationcreativityattention to detailuser-centric thinking