Principal AI Architect

This position requires office presence of a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered.

AT&T is ushering in a new era of intelligent automation and secure AI innovation. We are seeking a visionary Principal AI Architect to lead the design, development, and deployment of advanced AI systems that integrate large language models (LLMs), prompt engineering, full-stack development, and AI cybersecurity. This role is ideal for a seasoned technologist with deep expertise in Python, AI agent orchestration, and secure enterprise-grade deployments.

You will architect context-rich AI solutions, build scalable applications, and ensure the security and ethical integrity of AI systems. Your work will directly impact how AT&T leverages autonomous agents, Retrieval-Augmented Generation (RAG), and emerging technologies to transform operations and deliver intelligent digital services

What You’ll Do:

AI Engineering & Automation

• Architect and implement intelligent automation workflows using LLMs, prompt engineering, and dynamic context management.

• Design and optimize prompts for precision and contextual relevance across diverse use cases.

• Build and orchestrate multi-agent systems using frameworks like LangGraph.

• Integrate LLMs into scalable Python applications using APIs and custom pipelines.

• Develop and maintain robust backend services and optional front-end interfaces for end-to-end AI applications.

Full Stack Development

• Lead the development of scalable web applications using Python (FastAPI, Flask, Django) and React.js.

• Architect RESTful APIs and integrate third-party services.

• Drive best practices in coding, testing, and application architecture.

• Mentor junior developers and lead code reviews to ensure technical excellence.

AI Security & Governance

• Design and implement security protocols to protect AI systems from emerging cyber threats.

• Conduct adversarial testing, vulnerability assessments, and compliance audits.

• Develop secure coding standards and guide teams on responsible AI deployment.

• Research and apply industry standards (e.g., NIST AI-RMF, ISO42001, OWASP Top 10 for LLMs) to safeguard AI systems.

What You’ll Need:

• Bachelor’s or Master’s degree in Computer Science, Engineering, AI/ML, Cybersecurity, or related field preferred.

• 7+ years of professional experience in full-stack development and AI engineering.

• Proven expertise in Python development and modern front-end frameworks (React.js, TypeScript).

• Deep experience with LLMs (OpenAI, Anthropic, open-source), prompt engineering, and context management.

• Hands-on experience with RAG pipelines, vector search, and multi-agent orchestration.

• Strong understanding of cloud infrastructure (AWS, Azure, GCP), containerization (Docker), and CI/CD practices.

• Demonstrated experience in AI security, including adversarial testing and secure deployment.

• Excellent problem-solving, communication, and leadership skills.

AT&T will not hire any applicants for this position who require employer sponsorship now or in the future.

Supervisor:

No

Our Principal Cybersecurity AI Architect, earns between $141,300-$211,900 USD Annual, Not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training.  

Joining our team comes with amazing perks and benefits:

• Medical/Dental/Vision coverage  

• 401(k) plan  

• Tuition reimbursement program  

• Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)  

• Paid Parental Leave  

• Paid Caregiver Leave  

• Additional sick leave beyond what state and local law require may be available but is unprotected  

• Adoption Reimbursement  

• Disability Benefits (short term and long term)  

• Life and Accidental Death Insurance  

• Supplemental benefit programs: critical illness/accident hospital indemnity/group legal  

• Employee Assistance Programs (EAP)  

• Extensive employee wellness programs  

• Employee discounts up to 50% off on eligible AT&T mobility plans and accessories,

• AT&T internet (and fiber where available) and AT&T phone.

When you step into a career with AT&T, you won’t just imagine the future-you’ll create it. Ready to join our team? Apply today