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LLM Application Engineer

bjakcareerSwedenActAI 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

ActAI seeks an LLM Application Engineer located in Sweden to construct the intelligence layer for proactive AI applications. This full-time position suits a software engineer focused on building reliable agent workflows, integrating models, and turning probabilistic outputs into predictable user experiences.

Role Overview

ActAI hires an LLM Application Engineer to operate at the intersection of product, software engineering, and large language models. The professional handles the complete lifecycle of AI capabilities, from analyzing user needs and designing agentic systems to integration, evaluation, and production monitoring. The primary goal centers on developing proactive applications for users without requiring complex prompting.

Key Responsibilities

Design and deploy LLM-driven applications alongside agent workflows.
Create orchestration pipelines to transform probabilistic outputs into safe, observable, and predictable actions.
Connect large language models with databases, APIs, search functions, and external tools.
Construct evaluation frameworks and datasets to monitor reliability, quality, and regressions.
Debug systems across backend services, prompts, orchestration, and user experience layers.
Refine AI architectures for cost efficiency, quality, and latency.

Requirements

Possess solid software engineering foundations and practical experience in constructing AI-powered applications.
Demonstrate hands-on work with generative AI, agent-based architectures, or large language models.
Show familiarity with designing workflows, evaluations, prompts, and model behaviors.
Write production-quality code and navigate multiple abstraction layers from models to systems and products.

Skills and Tools

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

About the Company

ActAI builds proactive applications for users globally to handle conversations, errands, organization, and workflows with minimal or no prompting. The company targets high reliability for long-term workflows, persistent context, and real-world task completion while reducing hallucinations.

How to Apply

Interested candidates should submit applications directly on the official company careers page.

Skills and tech stack

Questions candidates ask

What is the main objective of ActAI?

ActAI aims to build proactive applications that bring intelligence to workflows, conversations, and errands with minimal or no prompting, allowing users to spend time on valuable tasks.

Where is the position located?

The job is located in Sweden.

What technologies and tools are used in this role?

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

What are the core responsibilities of the LLM Application Engineer?

Responsibilities include building LLM-powered applications, designing reasoning and memory systems, creating reliable orchestration pipelines, integrating models with APIs and databases, building evaluation frameworks, and debugging across the entire stack.

How should candidates apply?

Candidates should apply through the official company careers page.

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site