**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.** Join AT&T and reimagine the communications and technologies that connect the world. Our Consumer Technology experience team is delivering innovative and reliable technology solutions to power differentiated, simplified customer experiences. Bring your bold ideas and fearless risk-taking to redefine connectivity and transform how the world shares stories and experiences that matter. When you step into a career with AT&T, you won’t just imagine the future-you’ll create it. As a Principal System Engineer, you’ll be responsible for translating business needs into technical solutions and defining solutions to problems through reasoned application of information technology. **Roles and Responsibilities:** + Researches and recommends new technologies to enhance current systems, ensuring the platform remains cutting-edge and efficient. + Supports technical initiatives, usually as part of a larger project, contributing to the overall success of integration and development projects. + Maintains strong hands-on skills with the MuleSoft Anypoint Platform, ensuring proficiency in the latest MuleSoft products, strategies, and best practices. + Stays updated with the latest trends and advancements in MuleSoft and integration technologies, implementing Center for Enablement (C4E) best practices to standardize and optimize development processes. + Applies strong infrastructure knowledge, including servers, clusters, load balancers, firewall rules, SSL, Virtual Private Clouds (VPC), Virtual Private Networks (VPN), and certificates, to architect reliable and secure integration solutions. + Conducts technical proof of concepts and guides the MuleSoft platform team on implementation strategies, ensuring effective and efficient solutions. + Implements basic and OAuth authentication protocols for every API service call from outside the network, ensuring secure communication. + Secures service account passwords using encryption mechanisms with various encryption methods, maintaining high standards of data security. + Reviews applications and provides infrastructure sizing guidelines, ensuring that the deployment environment is appropriately scaled and optimized for performance. + Implements best practices for MuleSoft development, ensuring high-quality and maintainable code. + Develops and maintains documentation for C4E platform capabilities, providing clear and comprehensive guides for development teams. + Implements platform seed template upgrades and works with application teams to facilitate adoption, ensuring consistency and efficiency across projects. **Qualifications:** + Degree in Engineering, Information Systems, or a related technical field is preferred. + 8-10 years of hands-on experience with MuleSoft and API Management. + Excellent knowledge of Service-Oriented Architecture (SOA) and Enterprise Service Bus (ESB) concepts. + Deep experience with Anypoint Platform, Flow Design, API Design, DataWeave, and Runtime Fabric (RTF). + Experience in building DevOps CI/CD processes using Jenkins and GitOps with ArgoCD. + Working knowledge of Service-Oriented Architecture, Integration Patterns, Java, SOAP Web services, RESTful services, and RAML. + Experience with MuleSoft RTF deployments on Cloud, including scaling concepts using Horizontal Pod Autoscaler (HPA) and Kubernetes Event-driven Autoscaling (KEDA). + Good experience with Kubernetes environments. + Experience with cloud technologies, particularly Azure or similar cloud platforms. + Strong understanding and experience with security implementations, such as SSL/mutual SSL, SAML, and OAuth. + Proficiency with CI/CD pipelines, Maven, MUnit, and integration testing frameworks. + Experience in building MuleSoft custom connectors. + Experience in Center for Enablement (C4E) platform enablement and architecting complex integration projects across various domains. + Strong analytical and problem-solving abilities to identify and resolve technical issues efficiently. + Ability to develop technical documentation on applications and systems. + Ability to work effectively with both technical and business-oriented teams. Our Principal System Engineering, earns between $158,200.00-$237,400.00 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. \#LI-Onsite – Full-time office role- **\#ConsumerTechnologyeXperience** AT&T is leading the way to the future – for customers, businesses, and the industry. We're developing new technologies to make it easier for our customers to stay connected to their world. Together, we’ve built a premier integrated communications and entertainment company and an amazing place to work and grow. Team up with industry innovators every time you walk into work, creating the world you always imagined. Ready to #transformdigital with us? **Apply now!** **Weekly Hours:** 40 **Time Type:** Regular **Location:** USA:TX:Dallas / Two AT&T Plaza (211 S Akard St) - Dat:211 S Akard St **Salary Range:** $158,200.00 - $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 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