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 Youll 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 .

• 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 Youll Need:

• Bachelors or Masters 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 ( 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$141300-$211900 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 wont just imagine the future-youll create it. Ready to join our team Apply today