Principal System Engineer

AT&T

. Architect, design, and analyze large-scale distributed systems .

Posted 10/8/2026full-timeDallas • Texas • United StatesLead💰 $174,100 - $261,100 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in architecting and designing large-scale distributed systems, with a strong focus on cloud-native architectures and performance optimization. Proficient in leading technical solutions, mentoring engineers, and enforcing best practices in software development.

Highest-signal resume keywords

Large-Scale Distributed Systems ArchitectureCloud-Native Architecture MigrationTechnical Documentation DevelopmentReact.js, Next.js, TypeScript, ReduxCI/CD Pipeline Improvement

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

System Architecture DesignPerformance OptimizationMicroservices DevelopmentAPI DevelopmentJava/Kotlin ProgrammingSpring Boot, Spring MVC, Spring SecurityDatabase Management (Cassandra, Oracle, MySQL)Kafka and Networking ProtocolsTechnical Standards EnforcementSoftware Development Lifecycle Management

Soft Skills

Technical LeadershipCollaborationMentoringProblem-SolvingCommunication

Tools & Technologies

Google CloudAzure CloudDockerKubernetesJenkinsSonarQubeVeracodeHelmGitLabBitbucket

Industry Keywords

Cloud PlatformsEvent-Driven SystemsData PlatformsAPIsLegacy System ModernizationEngineering Best PracticesArchitectural DiagramsDesign PatternsIncident ManagementTroubleshooting

Tech Stack

Tools & technologies

AzureCassandraCloudDistributed SystemsDockerGradleGraphQLHibernateJavaJavaScriptJenkinsKafkaKotlinKubernetesMavenMicroservicesMySQLNext.jsNoSQLOraclePostgresReactReact NativeReduxSOAPSplunkSpringSpring BootSpringBootTypeScript

About the role

Key responsibilities & impact

Architect, design, and analyze large-scale distributed systems
Define end-to-end system architecture across software components
Evaluate and select technologies including cloud platforms, microservices, event-driven systems, APIs, and data platforms
Lead architectural design decisions and serve as the primary contact for complex technical solutions
Coordinate system design and integration across frontend, backend, APIs, data stores, and infrastructure
Design and develop system versions and prototypes to optimize performance, scalability, and fault tolerance
Drive modernization initiatives, including migration from legacy systems to cloud-native architectures
Research, evaluate, and recommend emerging technologies and tools
Define and enforce technical standards, design patterns, and engineering best practices
Collaborate with architects, product managers, engineering directors, and cross-functional teams
Review and refine architectural solutions for large-scale initiatives
Develop and maintain architectural diagrams, design documents, API specifications, and operation guidelines
Mentor engineers and provide technical leadership through design reviews, code reviews, and knowledge-sharing sessions
Improve software development lifecycle processes, CI/CD pipelines, release processes, testing strategies, and engineering workflow automation
Lead performance optimization efforts across distributed systems
Participate in production support and incident management, including troubleshooting and hot fixes
Build multiple system versions addressing performance and scale
Develop technical documentation on applications and systems

Requirements

What you’ll need

Bachelor’s degree, or foreign equivalent degree in Applied Computer Science, Information Systems, or Computer Engineering
Seven (7) years of progressive, postbaccalaureate experience in the job offered or seven (7) years of progressive, postbaccalaureate experience in a related occupation
Experience building multiple versions systems addressing performance and scale
Experience developing technical documentation on applications and systems
Experience utilizing React.js, Next.js, TypeScript, Redux, MUI, Styled Components, Tailwind CSS, React Native, and Java/Kotlin
Experience with Spring Boot, Spring MVC, Spring Security, Spring Cloud, Hibernate, Struts2, REST, SOAP APIs, GraphQL, Cassandra NoSQL, Oracle, Postgres, and MySQL
Experience using Kafka and networking protocols including HTTP, HTTPS, TCP, and UDP
Experience with Jenkins, SonarQube, Veracode, Helm, Docker, and Kubernetes
Experience with Maven, Gradle, Ant, GitLab, Bitbucket, and GitHub
Experience with Google Cloud, Azure Cloud, Splunk, and Dynatrace

Benefits

Comp & perks

Medical/Dental/Vision coverage
401(k) plan
Tuition reimbursement program
Paid Time Off and Holidays (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