Quality Control Engineer

DeepRec.ai; Barcelona; Híbrido; EUR 45.000 - 60.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Signing bonus

Retention bonus

Relocation support

Hybrid working & flexible hours

International, multicultural tech environment

Descripción de la vacante

An innovative deep-tech company in Barcelona is seeking a Quality Control Engineer to ensure the reliability and performance of AI products. You will validate LLM systems and collaborate with engineers to define acceptance criteria. The ideal candidate holds a Master’s degree and has over 2 years in QA, alongside familiarity with AI/ML testing. They offer a hybrid working model, signing bonuses, and relocation support. This is a unique opportunity in a dynamic, multicultural environment.

Formación

• Master’s degree in CS, Data Science, Software Engineering (or related).
• 2+ years in QA for software, ML or AI systems.
• Understanding of AI/ML testing challenges (reproducibility, output validation, bias).
• Familiarity with Python, APIs & modern ML/LLM workflows.
• Fluent English (Spanish or French a plus).

Responsabilidades

• Own quality validation for AI & LLM‑based applications.
• Define acceptance criteria with engineers and product teams.
• Test scalability, latency, robustness & data integrity.
• Build and standardize QA frameworks across AI projects.
• Design manual & automated test suites.

Conocimientos

Quality assurance in software

Knowledge of AI and ML testing

Familiarity with Python

Fluent in English

Understanding of data integrity

Educación

Master’s in Computer Science or related field

Descripción del empleo

Quality Control Engineer – AI & LLM Services

Barcelona | Hybrid | Fixed-term contract (to June 2026)

Want to be on the front line of real-world AI quality, validating systems that power next-generation LLMs, chatbots, and AI services used globally?

A fast-scaling European deep-tech company at the intersection of AI and advanced computing is hiring a Quality Control Engineer to ensure the reliability, performance, and robustness of cutting-edge AI products.

This role is actively hiring with a fast, transparent interview process.

Why this role stands out

• Work on AI technology that dramatically reduces model size and inference cost
• Direct impact on production LLM systems used by enterprise clients
• Join a Series‑B‑stage deep‑tech company with strong international backing

What you’ll do

• Own quality validation for AI & LLM‑based applications (chatbots, RAG, APIs, data pipelines)
• Define acceptance criteria with engineers, product teams & clients
• Test scalability, latency, robustness & data integrity under real‑world conditions
• Build and standardize QA frameworks across AI projects
• Design manual & automated test suites for ML/LLM workflows
• Ensure final deliveries meet both technical and functional excellence standards

What you bring

• Master’s degree in CS, Data Science, Software Engineering (or related)
• 2+ years in QA for software, ML or AI systems
• Understanding of AI/ML testing challenges (reproducibility, output validation, bias)
• Familiarity with Python, APIs & modern ML/LLM workflows
• Fluent English (Spanish or French a plus)

What’s on offer

• Signing bonus and retention bonus
• Hybrid working & flexible hours
• Relocation support (if needed)
• International, multicultural tech environment

If you’re passionate about making AI trustworthy, scalable, and production‑ready, this is a rare chance to do it at the cutting edge.

Seniority level

• Mid‑Senior level

Employment type

• Contract

Job function

• Information Technology

Industries

• Software Development