AI Engineer – Tools & Automations

LABHOUSE

AI Engineer designing and building LLM-powered tools for AI-driven mobile applications. Focused on automating processes and enhancing productivity in a startup environment.

Posted 7/28/2026full-timeBarcelona • 🇪🇸 SpainMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and building AI-powered tools and automations, particularly with LLMs and agent frameworks. Proven ability to integrate systems, measure productivity gains, and work autonomously in fast-paced environments.

Highest-signal resume keywords

LLM ExperiencePython ProgrammingAgent Framework DesignAutomation DevelopmentAPI Integration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

LLMPythonAgent-Based SystemsAutomationAPI IntegrationWebhooksMulti-Step WorkflowsProductivity MeasurementFine-TuningRAG

Soft Skills

AutonomyBusiness VisionPrioritizationAdaptabilityCollaboration

Tools & Technologies

Internal SystemsThird-Party ToolsData-Heavy Environments

Industry Keywords

AutomationProductivity ImprovementCampaign DataAcquisition DataPerformance Metrics

Tech Stack

Tools & technologies

Python

About the role

Key responsibilities & impact

Identify manual, repetitive, or slow processes and turn them into AI-powered tools and automations
Design and build LLM-based agents that can reason, use tools, and complete multi-step tasks autonomously
Own projects end-to-end — from scoping the problem and understanding the business need, to designing, building, and shipping the solution
Integrate LLMs and agents with internal systems and third-party tools
Work directly with team leads to understand where AI can unlock the most impact — and translate that into working products
Measure the productivity and efficiency gains your work generates, and iterate based on real usage

Requirements

What you’ll need

Strong, proven experience working with LLMs in production — prompting, fine-tuning, RAG, or agent-based systems
Deep knowledge of agent frameworks and how to design multi-step, tool-using workflows
Track record of shipping tools or automations that measurably improved productivity or performance in a company
Strong Python skills and comfort integrating APIs, webhooks, and third-party tools
Business vision — you understand how a company operates and can spot high-leverage opportunities for automation without being told where to look
Comfortable working in fast-moving, data-heavy environments where speed and iteration matter
Experience building tools or automations involving paid or organic acquisition data (campaigns, channels, attribution, or similar) is a strong plus
Ability to work autonomously, prioritize based on impact, and ship without waiting for perfect conditions

Benefits

Comp & perks

Competitive compensation package
Hybrid work model based in Barcelona
High ownership from day one — you define the direction, not just execute on it
Work directly with the founders and a senior, low-ego team
Real, immediate impact — your tools will be used by every team, every day