Senior AI Engineer- AI Agents

ERNI; Barcelona; Híbrido; EUR 70.000 - 100.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Certifications reimbursement

Private health insurance

Full sick leave

Emotional, legal and family support

Gym discounts

Flexible remuneration

Referral bonuses

23 working days of vacation

Language courses in English, Spanish,

Catalan and German

Descripción de la vacante

ERNI is seeking a senior AI/ML engineer to shape a governance-first, enterprise-grade conversational analytics platform for clinical operations. You will build Python-based applications, leverage LLM agents, Snowflake, and advanced analytics in a collaborative, hybrid environment.

You will work with multidisciplinary teams, gain autonomy, and contribute to quality, compliance, and innovation while benefiting from ERNI's supportive onboarding and growth opportunities.

Formación

• Strong production experience developing Python applications.
• Advanced SQL with analytic queries, window functions and performance optimization.
• Hands-on experience with prompt engineering and LLM agent architectures (e.g., ReAct or plan-and-execute).

Conocimientos

Python

LLM agents

SQL

Prompt engineering

Snowflake

Data modelling

LangGraph

CI/CD

AI evaluation

Descripción del empleo

Ready to shape the future of conversational analytics in clinical operations?

Join our expert team to work on a governed clinical-operations analytics platform, contributing to the development of an enterprise-grade conversational AI agent. You will apply your knowledge of Python, LLM Agents, Snowflake, and advanced analytics to deliver reliable, explainable, and secure AI-powered insights. You will collaborate with multidisciplinary teams in a governance-first environment focused on quality, compliance, and innovation.

At ERNI, you are never just a number. Even if you work on an external project, you will feel part of the team and always supported.

How do we make this happen?

With people. Besides your team and manager, you will have several support figures like a godparent, who will help you with the practical and administrative aspects of daily life during your first 6 months.

And the second most important person after you, your mentor, who will guide you through your entire onboarding and career at ERNI. You will have regular 1:1 meetings with them, and recurrently, you will work on your development plan to define your short-, medium-, and long-term goals.

At ERNI, we highly value experience and technical knowledge. As a senior profile, you will have the space to continue growing, whether by deepening your technical skills or having greater influence on project decisions, with autonomy and the opportunity to share knowledge with other experts.
And if you are interested in mentoring, there is also space for that: supporting other ERNIans while still focusing on the technical excellence that sets us apart.

What you will bring

• Strong production experience developing applications in Python.
• Advanced SQL expertise including analytical queries, window functions and performance optimization.
• Hands-on experience with prompt engineering, function calling and LLM agent architectures such as ReAct or plan-and-execute.
• Experience with Snowflake, data modelling and conversational analytics or text-to-SQL solutions.
• Experience orchestrating AI agents using LangGraph or comparable agent frameworks
• Experience with AI evaluation, observability and CI/CD practices for production-grade AI systems.

What if the project ends?

We work on a wide variety of projects, technologies, and sectors, allowing you to keep growing in different environments. If a project ends or you feel ready for a new challenge, we will find another one that aligns with your professional development.

Our working model

We ask you to be available for key meetings. Need to leave for a doctor’s appointment or to pick up your child from school? No problem. We trust you to deliver quality work within your 40-hour workweek.

Our model is hybrid: we usually go to the office 2 days a week, though this depends on the project and team, but we love seeing each other’s faces; the best stories always happen in the office!

You will also enjoy:

• We cover your certifications and reward technical achievements up to €1,500.
• Private health insurance.
• Full coverage for sick leave
• Free emotional, legal, and family support.
• Gym discounts or sports compensation.
• Flexible remuneration: meals, transport, childcare, etc.
• Referral bonuses: up to €6,000 per candidate and €5,000 per client.
• 23 working days of vacation.
• Free language courses: English, Spanish, Catalan and German.

And the salary?

We will discuss it during the first call. If it is important to you, feel free to ask!