**Job Description:** **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 **Weekly Hours:** 40 **Time Type:** Regular **Location:** Charlotte, North Carolina **Salary Range:** $141,300.00 - $237,400.00 It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made. AT&T will consider for employment qualified applicants in a manner consistent with the requirements of federal, state and local laws We expect employees to be honest, trustworthy, and operate with integrity. Discrimination and all unlawful harassment (including sexual harassment) in employment is not tolerated. We encourage success based on our individual merits and abilities without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, disability, marital status, citizenship status, military status, protected veteran status or employment status