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Xtillion

Builds and scales enterprise AI solutions

AI Native Engineer Senior Associate

Full-TimeUpdated on 10/14/2026
No salary listed
Mid
Bachelor's
San Juan, Puerto Rico
In Person
Software EngineeringAI Application Engineering, Backend Engineering

About the job

Requirements
  • A bachelor's degree in Computer Science, Software Engineering, Data Science, or a related field is required.
  • At least four years of professional experience in software engineering, data science, machine learning engineering, or a related technical discipline is required.
  • Demonstrated experience building and deploying AI-enabled or data-intensive production systems is required.
  • Experience with modern backend or data frameworks such as FastAPI or Node.js is required.
  • Strong experience with SQL and relational or analytical data systems is required.
  • Experience working in cloud environments such as AWS, Azure, or GCP is required.
  • Familiarity with Git-based version control, CI/CD pipelines, and modern development workflows is required.
  • Strong written and verbal English communication skills are required.
Responsibilities
  • Partner with clients and cross-functional teams to translate business problems into AI solutions, defining scope, success metrics, and technical approach.
  • Design, build, and deploy AI-enabled applications, services, and workflows, including large language model-powered systems, retrieval pipelines, and intelligent automation.
  • Develop and maintain the APIs, backend services, and data pipelines that power scalable AI and analytical systems.
  • Drive model evaluation, prompt engineering, data preparation, and system testing to ensure quality, reliability, and continuous improvement.
  • Contribute to infrastructure and deployment workflows for AI systems in cloud environments.
  • Strengthen engineering culture through code reviews, architectural documentation, mentoring, and evolving team best practices.
Desired Qualifications
  • Hands-on experience with large language model-powered applications, orchestration frameworks such as LangChain or LangGraph, retrieval-augmented generation architectures, vector databases, or prompt engineering techniques.
  • Background in applied machine learning, statistical modeling, or predictive analytics using modern frameworks such as PyTorch, TensorFlow, Hugging Face, or scikit-learn.
  • Experience with the machine learning lifecycle, including experimentation, evaluation, monitoring, and deployment (MLOps).
  • Experience designing and maintaining large-scale data pipelines, analytical platforms, or data-intensive systems.
  • Familiarity with containerization, orchestration, or Infrastructure as Code technologies such as Docker, Kubernetes, or Terraform.

About the company

Xtillion is an AI solutions firm that helps enterprises build, operationalize, and scale high-value AI projects. It combines deep data expertise with a focus on extracting business value from data and AI, delivering practical, value-driven AI initiatives rather than just technology for its own sake. The company’s onshore base in San Juan, Puerto Rico enables it to attract and retain leading-edge data talent for client work. Xtillion’s goal is to enable organizations to turn data into measurable business outcomes by providing foundational data and AI capabilities that support scalable, enterprise-grade AI implementations.

Company Size

51-200

Company Stage

N/A

Total Funding

N/A

Headquarters

San Juan, Puerto Rico

Founded

2023

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Simplify's Take

What believers are saying

  • Xtillion highlighted a March 2026 prior-authorization automation engagement, showing active healthcare demand.
  • The June 2026 site refresh emphasizes production deployment, indicating maturity beyond slideware.
  • SOC 2 Type II and HIPAA compliance improve trust with enterprise buyers under procurement scrutiny.

What critics are saying

  • Services revenue depends on winning and renewing client projects, leaving little recurring revenue protection.
  • Healthcare and regulated-industry focus concentrates exposure if buying slows in HIPAA-heavy accounts.
  • No public funding, customer scale, or hiring velocity signals existential vulnerability if one anchor client leaves.

What makes Xtillion unique

  • XtillionOS standardizes AI delivery for regulated industries, especially healthcare, with built-in compliance.
  • Puerto Rico-based engineers give U.S.-compliant, onshore delivery without Bay Area cost structure.
  • Leadership combines McKinsey, Red Ventures, Amazon Robotics, and enterprise consulting operating experience.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Paid Vacation

401(k) Retirement Plan

Growth & Insights

Headcount

6 month growth

-1%

1 year growth

-3%

2 year growth

0%