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LLM Application Engineer

bjakcareerPolandActAI Engineering
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Salary
Not listed
Job type
Full-time
Work mode
Remote
Experience
Mid
Posted
28 Sept 2026
Status
Open · checked 7d ago

About this role

The LLM Application Engineer role at bjakcareer in Poland is a full-time position focused on building AI agent workflows and reliable application layers for ActAI. This opportunity suits software engineers with hands-on generative AI experience who want to design proactive, non-prompt-heavy applications.

Role Overview

ActAI seeks an engineer to build the intelligence layer for AI experiences in Poland. The professional will operate where LLMs, software engineering, and product design meet to create predictable user features.

Key Responsibilities

Construct and launch LLM applications and AI agent workflows.
Design orchestration pipelines that convert probabilistic model outputs into safe actions.
Create reasoning, planning, memory, and multi-step execution systems.
Connect LLMs to databases, APIs, search, and external tools.
Implement prompt and context engineering to enhance model behavior.
Construct evaluation datasets and frameworks to track quality and reliability.
Debug systems across prompts, backend services, and product UX.
Balance AI quality, latency, and cost factors.

Requirements

Possess solid software engineering foundations and experience creating AI applications.
Demonstrate practical background with LLMs, generative AI, or agent frameworks.
Show experience designing prompts, evaluations, and AI behavior.
Write clean code suitable for production.
Navigate abstraction layers spanning models, systems, and products.

Skills and Tools

Python
OpenAI-compatible APIs and open-weight models
Agent frameworks and orchestration systems
Vector databases and retrieval systems
Backend services, APIs, and distributed systems
PyTorch and JAX

About the Company

ActAI develops applications designed for users who do not rely on complex prompting, aiming to bring intelligence to everyday workflows and tasks. The company focuses on persistent context, real-world task execution, and long-running workflows with high reliability.

How to Apply

Interested candidates should apply on the official company careers page.

Skills and tech stack

PythonOpenAI-compatible APIsAgent frameworksVector databasesBackend servicesPyTorchJAXLLMLLMsGenerative AIDistributed Systems

Questions candidates ask

What is the primary focus of the LLM Application Engineer role?

The engineer builds the intelligence layer for ActAI, focusing on agent workflows, model behavior, and dependable user features.

What tools and technologies are used in this position?

The tech stack includes Python, PyTorch, JAX, vector databases, LLM APIs, agent frameworks, and distributed backend systems.

Where is the job located?

The position is located in Poland.

What background is required for applicants?

Applicants need solid software engineering fundamentals, practical experience with LLMs or generative AI, and the ability to write production-quality code.

How do candidates apply for the job?

Candidates must apply on the official company careers page.

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site