Senior Applied AI Engineer

The role

The Senior Applied AI Engineer will lead the development of an advanced automation framework powered by Large Language Models. This role involves building agentic systems, architecting RAG pipelines, and optimizing LLM performance.

What you will do

• Implement multi-step workflows leveraging reasoning, self-reflection, and adaptive execution strategies.
• Design retrieval-augmented generation (RAG) and memory-augmented architectures.
• Refine prompts, experiment with few-shot learning, and utilize fine-tuned models.
• Explore NLP techniques, embeddings, and vector databases.
• Develop robust model evaluation frameworks.
• Work across high-performing, cross-functional teams to translate vision into end-to-end production features.

Required qualifications

• 5+ years of professional software engineering experience
• At least 2+ years of hands-on experience building and deploying LLM-powered applications
• Bachelor/ Master’s Degree in Computer Science, Data Science, or other related engineering branches
• Expert-level proficiency in JavaScript and TypeScript
• Proven experience building with LLMs, prompt chaining, and feedback loops
• Hands-on experience with LangChain, LangGraph, and/or LlamaIndex
• Deep understanding of software stacks, database modeling, CI/CD, and service-oriented architectures
• Familiarity with multi-modal models (vision + text)
• Ability to explain complex technical concepts to diverse stakeholders and collaborate effectively

Nice to have

• 7+ years of overall engineering experience
• Experience with Python or web automation frameworks like Playwright
• Deep knowledge of Machine Learning algorithms (Regression, Neural Networks, Deep Learning)
• Experience with self-hosted models, LoRA adapters, and fine-tuning
• Exposure to Cloud infrastructure (AWS/Azure) and deployment tools like Jenkins

Benefits

• Competitive salary
• Bi-annual bonus
• 401(k) plan with match
• Equity in company
• Flexible spending accounts (health, dependent care)
• Internet and home office reimbursement
• In-office catered breakfast and lunches
• Medical, dental, and vision
• Life & long-term disability insurance
• Mental health support and resources
• Wellness reimbursement (gym, health apps, etc.)
• Pet Insurance

Before you apply

• This position requires the candidate to work in Puerto Rico
• Applicants must currently reside in Puerto Rico or be willing to relocate there

About the company

BOLD is an established global organization that helps people find jobs through digital products. They create tools that empower millions of people in 180 countries to build resumes, cover letters, and CVs.