AI Engineer

Cigna Health and Life Insurance Company
Municipality of Madrid, Spain
yesterday

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Senior

Job location

Municipality of Madrid, Spain

Tech stack

Java
Artificial Intelligence
Amazon Web Services (AWS)
Application Frameworks
Azure
C++
Computer Programming
Data Validation
Data Cleansing
DNS
Identity and Access Management
Python
Machine Learning
Routing
NLTK
TensorFlow
Reinforcement Learning
Cloud Platform System
PyTorch
Transfer Learning
Large Language Models
Deep Learning
Generative AI
Keras
Information Technology
HuggingFace
Machine Learning Operations
Feature Extraction
Firewall Services Module
Spacy
GPT
Software Library

Job description

We are seeking an AI engineer to join a team transforming healthcare and improving the lives and vitality of the millions of members we serve. The role will be a key member of a team working to develop scalable, resilient, and ethical AI solutions for the Cigna IH organization. Working closely with architects, product teams, and platform partners, this role will help establish connectivity to Large Language Models (LLMs), implement layered guardrails, leverage LLMs and open-source libraries, and contribute to building and maintaining end-to-end AI pipelines., * Contribute to the architecture and development of scalable, resilient, and ethical AI solutions in collaboration with Product and platform architects, acting as a Generative AI practitioner.

  • Support the establishment of connectivity to LLM endpoints in the enterprise cloud (AWS), including documenting DNS, routing, IAM policies, and firewall rules.
  • Implement enterprise-standard layered guardrails, including input validation, prompt-injection mitigation, runtime constraints, and content safety controls.
  • Apply Responsible AI principles in solution design and implementation, supporting fairness, transparency, and compliance with enterprise governance requirements and emerging regulations.
  • Utilize LLMs, open-source frameworks, machine learning techniques, and numerical programming tools to help deliver AI-enabled business solutions.
  • Work with open-source libraries (e.g., TensorFlow, PyTorch, Hugging Face Transformers, LangChain), cloud platforms, and internal systems as part of cross-functional delivery teams.
  • Contribute to the development and maintenance of end-to-end AI pipelines, including data preprocessing, feature extraction, model training, evaluation, and deployment.
  • Advance AI adoption by facilitating awareness of AI trends, infrastructure, and emerging issues, with a particular focus on LLMs and enterprise AI adoption, and disseminating insights across the team

Requirements

  • Advanced degree in Computer Science, Artificial Intelligence, Machine Learning, or a related field.
  • At least 5 years of experience in a technical role developing and deploying AI solutions preferably in healthcare or highly regulated industries for various countries in a medium-to-large enterprise.
  • Experience in implementing sequential modelling or generative AI, deep learning architectures, and Transformers, with a strong understanding of deep learning techniques such as GPT, VAE, and GANs.
  • Programming experience in one of C/C++, Java, Python and for self-supervised learning, transfer learning, and reinforcement learning.
  • Proficiency in machine learning libraries and frameworks, such as TensorFlow, PyTorch, LangFlow, and Keras.
  • Background in natural language processing (NLP), with experience utilizing tools like SpaCy, NLTK, and Hugging Face.
  • Familiarity with cloud-based platforms and services, such as AWS in particular or GCP and Azure.
  • Excellent problem-solving skills, with the ability to think critically and creatively to develop innovative AI solutions.
  • Strong communication skills, with the ability to effectively convey complex technical concepts to a diverse audience.
  • Possess a proactive mindset, with the ability to work independently and collaboratively in a fast-paced, dynamic environment.
  • Understand responsible AI frameworks and adhere to established ethical AI principles.

Benefits & conditions

  • Competitive salary
  • Multicultural and hybrid working environment
  • Private Medical Insurance
  • Employee Wellbeing Benefits
  • Educational Development Program

About Cigna Healthcare

Cigna Healthcare, a division of The Cigna Group, is an advocate for better health through every stage of life. We guide our customers through the health care system, empowering them with the information and insight they need to make the best choices for improving their health and vitality. Join us in driving growth and improving lives.

About the company

Cigna Healthcare is a global health service company dedicated to transforming healthcare. With roots in the U.S. and operations in over 30 countries, we serve more than 180 million customers and patients worldwide. Ranked 13th on the Fortune 500 in 2025, Cigna is recognized as one of the most trusted and influential names in the industry. Our mission is to improve the health, well-being, and peace of mind of those we serve. Join our globally recognized brand, where trust, communication, and a positive culture are at the core of everything we do. Our leadership is consistent, approachable, and supportive-ensuring your well-being and work-life balance. We're looking for individuals who thrive in collaborative environments, are passionate about meaningful change, and want to grow in a company that puts people first. At Cigna, you'll be part of a purpose-driven team that values innovation, compassion, and impact. Whether you're shaping better care experiences or supporting customers through life's key moments, your work will matter. Grow with us-and help shape the future of healthcare.

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