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Agentic AI Engineer

MANGO·Barcelona, Spain

What they offer

  • Permanent contract

    Full-time hours.

  • Hybrid

    Office and home days — the ad has the split.

What they ask for

  • Have the right to work in Spain

    MANGO doesn't mention sponsorship in the ad.

  • Work in English

    English is required, per the ad.

  • Be near Barcelona for hybrid days

    No relocation package mentioned.

  • Have 3+ years of experience

    Mid-level role.

Pulled from the advert automatically — the full ad is what counts.

This job was published 3 months ago

Read the full advert

About the role

At Mango, we are evolving our conversational assistant that serves millions of customers in 17 languages and 69 countries. Our assistant autonomously resolves most Customer Service interactions and has a direct impact on the user experience and the business. It also inspires our customers by recommending outfits with our Mango Stylist recommendation algorithm.
We are building a new generation of the assistant on an Agentic AI architecture and are looking for an Agentic AI Engineer to lead this technological leap.

Your mission will be to design and develop autonomous AI agents that resolve real customer interactions at scale, ensuring reliability, scalability, and an exceptional user experience.

YOUR NEW POSITION

What you'll do

  • Design and develop conversational agents with Generative AI and multi-agent architectures.

  • Build and maintain the assistant's backend in Python with FastAPI, deployed on Google Cloud Platform (Kubernetes, Pub/Sub, Secret Manager,

  • Vertex AI).

  • Integrate the assistant with external systems such as Salesforce, Mango APIs, and channels like mango.com, Mango app, WhatsApp, Instagram, and telephone.

  • Collaborate with computational linguists on the strategy for prompts, guardrails, and evaluations that ensure reliable responses aligned with the Mango brand.

  • Implement and maintain observability and evaluation pipelines for LLMs

  • to measure and improve the quality of responses

  • Apply best practices in security and privacy in the development of

  • the assistant: detection and masking of PII in conversations, secure management

  • of secrets, and compliance with GDPR.

What we're looking for

  • Degree in Computer Engineering or similar.

  • Organized, proactive, customer-oriented individual with the ability to work in a team.

  • 3+ years of experience in backend development with Python.

  • Experience with FastAPI and asynchronous programming in Python.

  • Experience or demonstrated high interest in LLMs, Generative AI, or NLP.

  • Experience integrating external APIs and third-party systems.

  • Experience in Cloud (preferably GCP, but AWS or Azure are also valued).

  • Knowledge of security applied to AI systems: prompt injection, data leakage, and data privacy (GDPR/CCPA)

Nice to have

  • Desirables / Nice to have

  • Experience with agentic architectures (LangGraph, LangChain, CrewAI, MCP).

  • Experience in virtual or conversational assistants.

  • Knowledge of NLU/NLP and language model evaluation.

  • Experience with LLM observability tools (Langfuse, LangSmith, or similar).

  • Experience with PII or DLP detection and masking tools (e.g., Google Cloud DLP).

Languages

  • High level of English.

Join us and be part of one of the most ambitious Agentic AI projects in the retail sector, with a direct impact on millions of people and the opportunity to learn and grow in a cutting-edge team.

What you'll get

YOUR BENEFITS

  • Immediate start with a permanent contract.

  • We offer flexible hours (you can start between 8 and 9:30 AM and finish between 5 and 6:30 PM) with a condensed schedule every Friday (you can start between 8 and 9 AM and finish between 2 and 3 PM) and most holiday eves

  • Possibility of 50% remote work.

  • 35% discount on all our lines

  • You can train technically on platforms like O'Reilly, among others, as well as in languages, and in skills for your personal development. We support you to keep growing professionally and personally!

  • Referral policy, you can participate in the incorporation of talent to our teams, and we will reward you for it!

  • Workshops, meetups, communities of practice, team buildings, and company meetings.

  • Flexible compensation package with tax advantages: medical insurance, training, meal discount, daycare, etc.

  • Catering service in the office.

  • On-site medical service at the headquarters.

  • You will be part of a leading company in the fashion sector, dynamic, in full innovation, with great awareness and taking actions towards sustainability

  • Close, inspiring, and ambitious work environment, you will work with a great team that goes in the same direction to achieve the best results

  • Constant opportunities for development with very varied challenges that generate learning in the workplace.

YOUR BENEFITS

  • Enjoy a flexible schedule and hybrid work that adapts to your needs. At MANGO, we support work-life balance.

  • At MANGO, the weekend starts on Friday at noon. We offer a shortened schedule on Fridays and holidays' eves.

  • Plan your vacations according to your preferences. At MANGO, we value your time and want you to enjoy every moment.

  • As part of the MANGO team, you will have a discount on all our lines, so you are always up-to-date!

  • You will enjoy My Mango Benefits, our benefits platform, from which you can adapt your compensation to your lifestyle with tax advantages, as well as access to a discount portal for multiple brands and services.

  • Flexible compensation package with tax advantages: health insurance, training, catering, and daycare program.

  • Free company transportation from Barcelona and El Vallés.

  • At MANGO, we invest in your personal and professional growth. Access a variety of training options, personalized mentoring, continuous development programs, and internal promotion opportunities that will drive you toward success. On a technical level, you can train in the use of different technological platforms, as well as participate in workshops, meetups, communities of practice, team buildings, and company meetings.

  • Think big! MANGO offers you international opportunities in more than 120 markets to expand your horizon and grow with us on a global level.

  • Referral policy: you can participate in the incorporation of talent to our teams, and we will reward you for it!

How you'll work

Full-time

permanent

hybrid

About the company & team

At MANGO, we dress with passion everything we do. Founded in Barcelona and present in more than 120 countries, we inspire the world with creativity, innovation, and authenticity.

Our multicultural team is the driving force behind our success. We take pride in taking fashion further, connecting our unique style with people around the world.


OUR TEAM
We are an agile and multidisciplinary team: Tech Lead, Product Owner, software
engineers, and computational linguists.

Additional information

At Mango, we believe in an inclusive culture where creativity and innovation inspire us to take fashion further. Therefore, we are committed to providing equal opportunities for all people, valuing the authenticity of each individual.

This job was automatically translated to English, .

About the company

MANGO

MANGO

Fashion Retail

View company profile
Spanish company
15500 employees

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