Hybrid AI Engineer — Build Conversational Intelligence

Happy Scribe Ltd.; Bellprat; Hybrid; EUR 70,000 - 120,000; Full time

Benefits offered by this job

Competitive salary

Equity

Token spend policy

30 days holiday

Health coverage

Tax-smart savings

Job summary

Happy Scribe Ltd. in Barcelona is seeking an AI Engineer to advance the AI layer powering HappyScribe Intelligence features. You’ll craft features that combine LLMs, speech models, and retrieval to solve real user problems.

You’ll ship practical prompts, not debates, and work toward native, integrated AI experiences. The role focuses on building evaluation pipelines, optimizing AI infrastructure, and staying current with weekly model updates to inform migration decisions.

Qualifications

• 5+ years as a software engineer with recent AI/ML product experience.
• Proven ability to ship production AI features used by real users.
• Fluent in prompt engineering, retrieval and evaluation frameworks.

Responsibilities

• Own AI features end-to-end from discovery to production.
• Design and maintain evaluation pipelines to catch regressions.
• Improve AI infrastructure for speed, cost, and reliability.
• Stay current with new models and techniques and assess migrations.
• Collaborate with product, design and engineering to ship native-feeling AI features.
• Build semantic search, agentic systems, and robust prompt evaluation pipelines.

Skills

AI engineering

Prompt engineering

RAG architectures

Evaluation frameworks

LLM-based features

Job description

Happy Scribe Ltd. in Barcelona is seeking an AI Engineer to advance the AI layer powering HappyScribe Intelligence features. You’ll craft features that combine LLMs, speech models, and retrieval to solve real user problems.

You’ll ship practical prompts, not debates, and work toward native, integrated AI experiences. The role focuses on building evaluation pipelines, optimizing AI infrastructure, and staying current with weekly model updates to inform migration decisions.