TL;DR

Senior AI Backend Engineer (LLM): Designing, implementing, and managing cloud infrastructure and backend architecture for AI Verification and Az ChatGPT Services with an accent on MLOps, LLM integration, and RAG solutions. Focus on optimizing model latency, building CI/CD pipelines for AI services, and researching agent-based solutions across multiple LLMs.

Location: Hybrid (Spain)

Company

%hirify_global%, part of EPAM, is a Digital Accelerator specializing in high-impact digital solutions for global organizations.

What you will do

Design, implement, and manage cloud infrastructure on AWS using IaC tools like Terraform or CloudFormation.
Develop backend architecture for AI Verification and Az ChatGPT Services using Python and FastAPI.
Build and maintain an LLM-as-a-judge production service for validating AI-generated content.
Deploy and manage multi-service AI solutions on Kubernetes with Prometheus and Grafana monitoring.
Design, build, and maintain high-load RAG solutions including ingestion and retrieval services.
Perform prompt engineering using Chain-of-Thought and few-shot learning techniques across multiple LLMs.

Requirements

5+ years of experience designing and implementing cloud solutions in AWS; Azure experience is a strong plus.
Advanced knowledge of Kubernetes, microservices, and IaC (Terraform).
Hands-on experience with Machine Learning pipelines, MLOps, and LLM-based solutions (Chatbots, RAG).
Strong experience developing in Python, including FastAPI.
Experience designing and deploying RAG systems and AI agent-based architectures.
High level of English (C1 or equivalent).

Nice to have

Experience with Cloud Security and compliance.
Familiarity with cloud cost-optimization tools and automation frameworks.

Culture & Benefits

Permanent contract with a competitive salary.
Flexible work model with remote-work options.
Personalized career plan and continuous training (certifications, English).
Participation in stable projects with strong technical components.
Flexible schedule with focus on work–life balance.
Social benefits tailored to your needs.