Lead System Engineer

AT&T

Lead System Engineer at AT&T focusing on designing enterprise applications and enhancing software components across multi-platform systems. Involves collaboration with architects, stakeholders, and DevOps teams.

Posted 5/7/2026full-timePlano • Texas • 🇺🇸 United StatesSenior💰 $171,188 - $237,400 per yearWebsite

Tech Stack

Tools & technologies

AzureCassandraCloudJ2EEJavaJavaScriptjQueryJUnitKafkaMicroservicesMockitoNoSQLOraclePostgresReactSeleniumSpringSQL

About the role

Key responsibilities & impact

Design, develop, test, and implement enterprise-grade applications by building and enhancing software components
Direct technical design and hands-on development of multi-platform systems
Collaborate with architects and stakeholders to translate requirements into deliverables
Write robust, maintainable, and reusable code in Java/J2EE and microservices architectures
Conduct thorough code reviews, mentor engineers, and foster a culture of technical excellence
Collaborate with DevOps and production support to resolve issues and maintain seamless operations
Lead security reviews and vulnerability assessments of APIs
Analyze and transform legacy systems into modern JSON-based RESTful microservices
Ensure robust data persistence in Cassandra, PostgreSQL and cloud-native environments
Oversee API performance monitoring and dashboard creation

Requirements

What you’ll need

Requires a Bachelor’s degree, or foreign equivalent degree, in Computer Science, Computer Engineering, or Engineering
Five (5) years of progressive, post-baccalaureate experience in the job offered or in a related occupation developing methodologies through various programming languages
Estimating story points using Reference Story in Scrum and Fibonacci sequences
Utilizing API monitoring and dashboards using ELK, Dynatrace, MuleSoft, and Swagger
Utilizing Java, RESTful APIs, Spring, Spring MVC, Spring Kafka, Microservices, Git, Junit, Mockito/ JMock, Selenium, and Cucumber
Using relational database tools and skills including SQL, Oracle, MS SQL, PostgreSQL, and data manipulation, migration, and scrubs
Utilizing JSON, XML, SoapUI, Postman, Azure cloud, NoSQL DB, and Cosmos
Utilizing jQuery, ReactJS, JSON, and JavaScript
Following Agile, Scrum, and Kanban development methodologies and software tools including iTrack and ADO to deliver key business initiatives

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

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

JavaJ2EEmicroservicesRESTful APIsCassandraPostgreSQLSQLJSONXMLAgile

Soft Skills

collaborationmentoringtechnical excellenceproblem-solvingleadership

Certifications

Bachelor’s degree in Computer ScienceBachelor’s degree in Computer EngineeringBachelor’s degree in Engineering