Senior ML Engineer (AI)

Location: Bulgaria or Romania; remote or office work

Company

hirify.global delivers engineering, AI, and data science solutions through a community of more than 170 AI/ML experts.

What you will do

• Design and implement end-to-end ML pipelines covering data ingestion, feature engineering, training, optimization, and deployment.
• Build and maintain LLMOps pipelines with MLflow, Langfuse, LangSmith, or Weights & Biases for observability, reproducibility, and prompt versioning.
• Develop NLP, RAG, and multimodal AI solutions in collaboration with data scientists, engineers, and clients.
• Design and orchestrate agentic and multi-agent workflows using frameworks such as LangGraph and CrewAI.
• Improve ML infrastructure, including CI/CD/CT pipelines, cloud environments, data stores, monitoring, and security.
• Operate Databricks Workflows, Kubeflow, or Airflow and integrate ML services into reliable production applications.

Requirements

• At least 3 years of hands-on experience building and deploying production ML solutions.
• Master’s degree in Computer Science or a related field.
• Strong Python proficiency across the data science and ML ecosystem, including model development, packaging, and service integration.
• Advanced experience with LLMOps, AgentOps, experiment tracking, CI/CD/CT, and ML workflow orchestration.
• Experience with AWS, Azure, or GCP-based AI/ML services and working knowledge of LangGraph, CrewAI, or similar frameworks.
• Upper-intermediate or higher English proficiency is required, both spoken and written.

Culture & Benefits

• Work at the intersection of applied research and real-world delivery.
• Collaborate with AI/ML experts, data scientists, engineers, and clients.
• Choose a remote or office-based work arrangement.
• Build production-scale solutions using current AI, cloud, and ML infrastructure technologies.