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LLM Application Engineer

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

About this role

Based in Germany, the LLM Application Engineer role at ActAI involves developing the intelligence layer for proactive user applications and suits software professionals with generative artificial intelligence background. The position focuses on creating reliable long-running workflows and minimizing model hallucinations for everyday tasks.

Role Overview

ActAI seeks an LLM Application Engineer to construct the core intelligence platform behind its product suite. This position sits between large language models, software development, and product design to turn raw capabilities into dependable features. The professional handles complete project lifecycles from initial concept and agent design to evaluation and production monitoring.

Key Responsibilities

Construct and deploy applications powered by language models and autonomous agent workflows.
Architect systems supporting reasoning, planning, memory, tool usage, and multi-step execution.
Formulate reliable orchestration pipelines to convert probabilistic outputs into predictable actions.
Connect models with application programming interfaces, databases, search systems, and external tools.
Refine model behavior through context engineering, structured outputs, and tool-calling methods.
Establish evaluation frameworks and test datasets to measure reliability, quality, and regressions.
Troubleshoot artificial intelligence systems across prompts, orchestration, backend services, and user interfaces.
Balance system quality, operational latency, and cost efficiency.
Collaborate with product and engineering teams to transform ambiguous goals into working software.
Implement production practices for system observability, tracing, and experimentation.

Requirements

Solid software engineering foundations with a history of deploying artificial intelligence applications.
Practical background working with language models, generative systems, and agent architectures.
Experience creating prompts, workflows, and evaluation methods.
Capability to write clean and production-ready code.
Comfort operating across multiple abstraction layers from models to user products.
Strong problem-solving abilities within ambiguous environments.
Focus on shipping iterations and continuous system enhancement.

Skills and Tools

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

About the Company

ActAI builds proactive applications designed to eliminate complex prompting for everyday tasks like communication, organization, and scheduling. The organization focuses on long-running workflows, persistent context, and high reliability to reduce model hallucinations.

How to Apply

Interested candidates should visit the official company careers page on bjakcareer to submit an application.

Skills and tech stack

Questions candidates ask

Where is the LLM Application Engineer position located?

The role is located in Germany.

What programming languages and frameworks are used in this role?

The tech stack includes Python, PyTorch, JAX, OpenAI-compatible APIs, open-weight models, agent frameworks, vector databases, and distributed backend services.

What are the main goals of ActAI's products?

ActAI aims to build proactive applications for conversations, errands, and workflows that require minimal prompting, high reliability, and persistent context while reducing hallucinations.

How should a candidate apply for this job?

Candidates must apply directly on the official company careers page.

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site