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[Remote] Senior Data/ML Engineer

Remote · Colombia Full-time

Note: The job is a remote job and is open to candidates in USA. IDT Corporation is an American telecommunications company that specializes in prepaid communication and payment services. They are seeking a skilled Data/ML Engineer to join their BI team, responsible for designing, building, and maintaining data pipelines and architecture that support AI-driven applications and business intelligence.

Responsibilities

  • Design, develop, and maintain scalable data pipelines to support ingestion, transformation, and delivery into centralized feature stores, model-training workflows, and real-time inference services
  • Build and optimize workflows for extracting, storing, and retrieving semantic representations of unstructured data to enable advanced search and retrieval patterns
  • Architect and implement lightweight analytics and dashboarding solutions that deliver natural language query experience and AI-backed insights
  • Define and execute processes for managing prompt engineering techniques, orchestration flows, and model fine-tuning routines to power conversational interfaces
  • Oversee vector data stores and develop efficient indexing methodologies to support retrieval-augmented generation (RAG) workflows
  • Partner with data stakeholders to gather requirements for language-model initiatives and translate into scalable solutions
  • Create and maintain comprehensive documentation for all data processes, workflows and model deployment routines
  • Should be willing to stay informed and learn emerging methodologies in data engineering, MLOps and LLM operations

Skills

  • 8+ years of experience as a Data Engineer with 2+ years focused on MLOps
  • Excellent English communication skills
  • Effective oral and written communication skills with BI team and user community
  • Demonstrated experience in utilizing python for data engineering tasks, including transformation, advanced data manipulation, and large-scale data processing
  • Deep understanding of vector databases and RAG architectures, and how they drive semantic retrieval workflows
  • Skilled at integrating open-source LLM frameworks into data engineering workflows for end-to-end model training, customization, and scalable inference
  • Experience with cloud platforms like AWS or Azure Machine Learning for managed LLM deployments
  • Hands-on experience with big data technologies including Apache Spark, Hadoop, and Kafka for distributed processing and real-time data ingestion
  • Experience designing complex data pipelines extracting data from RDBMS, JSON, API and Flat file sources
  • Demonstrated skills in SQL and PLSQL programming, with advanced mastery in Business Intelligence and data warehouse methodologies, along with hands-on experience in one or more relational database systems and cloud-based database services such as Snowflake/Redshift
  • Understanding of software engineering principles and skills working on Unix/Linux/Windows Operating systems, and experience with Agile methodologies
  • Proficiency in version control systems, with experience in managing code repositories, branching, merging, and collaborating within a distributed development environment
  • Interest in business operations and comprehensive understanding of how robust BI systems drive corporate profitability by enabling data-driven decision-making and strategic insights
  • Experience with vector databases such as DataStax AstraDB, and developing LLM-powered applications using popular open source frameworks like LangChain and LlamaIndex–including prompt engineering, retrieval-augmented generation (RAG), and orchestration of intelligent workflows
  • Familiarity with evaluating and integrating open-source LLM frameworks–such as Hugging Face Transformers/LLaMA-4 across end-to-end workflows, including fine-tuning and inference optimization
  • Knowledge of MLOps tooling and CI/CD pipelines to manage model versioning and automated deployments

Benefits

  • This is a full-time work from home opportunity for a star Data/ML Engineer from LATAM.
  • Maximum flexibility in choosing a location to work

Company Overview

  • IDT Corporation enriches lives, providing communication, entertainment and financial services. It was founded in 1990, and is headquartered in Newark, New Jersey, USA, with a workforce of 1001-5000 employees. Its website is http://idt.net.
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