GenAI Platform Data Engr

Cognizant; Comunidad de Madrid; À distance; EUR 90 000 - 130 000; Plein temps

Résumé du poste

Cognizant is seeking a Senior / Lead GenAI Engineer to design, build and scale production-grade Generative AI solutions for a leading banking sector client. You will own from architecture through deployment, mentoring engineers and collaborating with risk and compliance stakeholders to ensure regulatory standards are met.

The role emphasizes hands-on Python, LangChain/LlamaIndex, LLMs, and cloud deployment across AWS/Azure/GCP with a strong focus on security and observability.

Qualifications

• 5+ years of software engineering experience with production GenAI/LLM solutions.
• Expert-level Python and modern GenAI frameworks.
• Deep understanding of RAG, embeddings, prompt engineering, eval methods.
• Experience integrating LLM providers (OpenAI, Anthropic, AWS Bedrock, Azure OpenAI).
• Experience with vector stores (Pinecone, OpenSearch, FAISS, Weaviate).
• Cloud deployment experience (AWS/Azure/GCP) for scalable AI workloads.
• Strong focus on data security, privacy and regulatory considerations for banking.
• Proven ability to lead initiatives and mentor teams.
• Fluent English communication.

Responsabilités

• Design, build and deploy production-grade GenAI solutions (RAG pipelines, chatbots, multi-agent systems).
• Lead prompt engineering, chain-of-thought orchestration and evaluation pipelines.
• Architect end-to-end RAG pipelines: ingestion, chunking, embeddings, vector store, retrieval.
• Deploy GenAI apps on cloud infrastructures with emphasis on scalability and cost control.
• Define and implement ML/Ops practices: versioning, evaluation, production monitoring.
• Mentor engineers and guide technical direction for GenAI initiatives.
• Translate banking stakeholder requirements into robust GenAI solutions.
• Collaborate with architecture, security and compliance teams to meet regulatory standards.
• Drive technical ownership from architecture to secure production deployment.

Connaissances

Python

GenAI & LLM Experience

Leadership & Mentoring

Fluent English

Formation

Degree in Computer Science / AI/ML

Outils

LangChain

LlamaIndex

OpenAI

Anthropic

AWS Bedrock

Azure OpenAI

Pinecone

OpenSearch

FAISS

Weaviate

Description du poste

As a Senior / Lead GenAI Engineer, you will design, build and scale production-grade Generative AI solutions for a leading company in the banking sector, taking technical ownership from architecture through deployment, in a fully remote role.

Don’t tick every box? If you meet around 70% of the requirements above, we’d still encourage you to apply.

ABOUT THE ROLE

We are looking for a Senior / Lead GenAI Engineer with deep, hands‑on expertise in Python and Large Language Models to design, build and scale Generative AI solutions for a leading banking sector client. In this role, you will take technical ownership of GenAI initiatives end-to-end — from architecture and prototyping through to secure, compliant production deployment — while mentoring engineers and partnering with business, risk and compliance stakeholders to ensure solutions meet the standards of a highly regulated environment.

KEY RESPONSIBILITIES

GenAI Solution Design & Delivery

• Design, build and deploy production‑grade Generative AI solutions (RAG pipelines, conversational assistants, multi‑agent systems) using Python and modern LLM frameworks.
• Lead prompt engineering, chain‑of‑thought orchestration, structured output parsing, guardrails and evaluation pipelines for LLM-based applications.
• Architect and own RAG pipelines end‑to‑end: document ingestion, chunking, embeddings, vector store management and retrieval optimization.

Platform & MLOps

• Deploy and operate GenAI applications on cloud infrastructure (AWS, Azure or GCP), with a focus on scalability, security and cost optimization.
• Implement evaluation and monitoring frameworks for AI systems: response quality, latency, hallucination detection and feedback loops.
• Define MLOps practices for LLM-based systems: versioning, automated evaluation and production monitoring.

Leadership & Stakeholder Management

• Act as technical lead for GenAI initiatives, mentoring engineers and setting technical direction.
• Translate business requirements from banking stakeholders (risk, compliance, customer experience) into robust technical solutions.
• Partner with architecture, security and compliance teams to ensure GenAI solutions meet the regulatory standards of the banking sector.

REQUIRED SKILLS & EXPERIENCE

• 5+ years of experience in software engineering, with significant hands‑on experience building Generative AI / LLM-based solutions in production.
• Expert-level Python skills, including experience with modern GenAI frameworks (LangChain, LlamaIndex or equivalent).
• Deep understanding of LLM concepts: RAG architectures, embeddings, prompt engineering, fine-tuning and evaluation methodologies.
• Hands‑on experience integrating LLM providers (OpenAI, Anthropic, AWS Bedrock, Azure OpenAI) into production systems.
• Experience with vector databases (Pinecone, OpenSearch, FAISS, Weaviate) and embedding optimization.
• Solid cloud experience (AWS, Azure or GCP) for deploying and scaling AI workloads.
• Strong understanding of data security, privacy and regulatory considerations relevant to the banking / financial sector.
• Proven ability to lead technical initiatives and mentor engineering teams.
• Fluent English.

NICE TO HAVE

• Experience designing multi‑agent or agentic AI workflows.
• Familiarity with AI observability tools (Langfuse, Weights & Biases, Helicone).
• Prior experience in banking, financial services or other highly regulated industries.
• Experience with MLOps practices and model governance frameworks.

EDUCATION

• Degree in Computer Science, Software Engineering, AI/ML or a related field.

PREFERRED CERTIFICATIONS

• AWS, Azure or GCP ML/AI certifications, a plus.

WORKING MODEL

Fully remote position.