AI Agent Productivization Engineer

ERNI; Madrid; Híbrido; EUR 60.000 - 90.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Certifications covered

Technical achievements rewards

Private health insurance

Full coverage for sick leave

Emotional support

Legal support

Family support

Gym discounts

Meal allowance

Transport allowance

Childcare support

Referral bonuses

Vacation days

Language courses

Descripción de la vacante

ERNI is hiring for a cutting-edge AI platform development role in Madrid. You will design and deploy AI agents and LLM-powered solutions using Python, AWS Bedrock, and serverless architectures. Join a team that values mentorship, growth, and collaboration across diverse projects.

You will work in a hybrid setup, with a focus on scalable, secure, and maintainable systems and strong governance. The role emphasizes continuous learning and cross-functional teamwork across disciplines.

Formación

• Strong Python experience with type hints, pytest, and clean code practices.
• Hands-on experience building LLM applications with AWS Bedrock, prompting, memory management, and tool calling.
• Production experience with AWS serverless services (Lambda, DynamoDB, API Gateway, Kinesis, IAM).
• Experience with Infrastructure as Code using AWS CDK or Terraform.
• Knowledge of agent frameworks such as Strands, LangGraph, LangChain or similar.

Responsabilidades

• Design, build and deploy AI agents and generative AI solutions.
• Develop scalable serverless architectures and integrate AI capabilities with enterprise systems.
• Implement observability, security and governance controls for reliable production environments.
• Collaborate with multidisciplinary teams to evolve PoCs into production-ready solutions and drive scalability.

Conocimientos

Python

Type hints

PyTest

Clean code

LLM applications

Prompting

Memory management

Tool calling

Herramientas

AWS Lambda

DynamoDB

API Gateway

Kinesis

IAM

AWS CDK

Terraform

Descripción del empleo

Can you imagine contributing to a large-scale AI ecosystem that will support more than 100 AI initiatives across multiple business domains?

Join our expert team to work on a cutting-edge AI platform, contributing to the development of conversational agents, RAG solutions, enterprise integrations and multi-agent architectures. You will apply your knowledge of Python, AWS Bedrock, Agent frameworks and serverless technologies to build scalable, secure and reusable AI solutions.

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.

We strongly encourage growth and continuous training. Each person has an individual development plan, mentoring, and access to internal technical communities. We aim for you to learn, experiment, and evolve within an environment where teamwork and support from more senior colleagues are key.

What you will bring

• Strong Python experience including type hints, pytest and clean code practices.
• Hands-on experience building LLM applications with AWS Bedrock, prompting, memory management and tool calling.
• Production experience with AWS serverless services such as Lambda, DynamoDB, API Gateway, Kinesis and IAM.
• Experience with Infrastructure as Code using AWS CDK or Terraform.
• Knowledge of agent frameworks such as Strands, LangGraph, LangChain or similar.

You will be responsible for designing, building and deploying AI agents and generative AI solutions. You will develop scalable serverless architectures, integrate AI capabilities with enterprise systems, and implement observability, security and governance controls to ensure reliable production environments. You will also collaborate with multidisciplinary teams to evolve PoCs into production-ready solutions while driving scalability, maintainability and operational excellence.

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!