Senior System Engineer

AT&T

Senior System Engineer ensuring stability and performance of web applications and services at AT&T. Leading production issue responses and collaborating with development teams for long-term solutions.

Posted 4/23/2026full-timeAlpharetta • 🇺🇸 United StatesSenior💰 $145,000 - $192,600 per yearWebsite

Tech Stack

Tools & technologies

AzureCloudDockerJ2EEJavaJavaScriptJenkinsKubernetesLinuxPythonSplunkSpringSQL

About the role

Key responsibilities & impact

Ensure stability, performance, and continuous improvement of web applications and services
Lead the response to production issues, identify and troubleshoot problems implementing immediate fixes, and ensuring minimal downtime in compliance with SLAs
Build alerting systems, monitoring tools, and dashboards to proactively identify issues
Apply strong analytical, technical and functional skills to diagnose and resolve complex production issues, focusing on quick impact mitigation and work with development teams to implement long-term solutions
Create and maintain comprehensive documentation for system architecture, configuration, deployment procedures, and troubleshooting guides
Proactively detect problems, analyze trends and patterns, assess impacts and manage escalated issues to ensure timely resolution
Conduct blameless postmortems and after-action reviews to identify failure patterns, document lessons learnt and implement remediation to enhance application resilience
Collaborate with development teams to define and validate non-functional requirements during design and development phases, ensuring compliance before production deployment
Monitor application performance using APM tools such as Dynatrace and ELK
Work closely with product development teams to ensure thorough knowledge transfer of system changes prior to operationalization
Provide on-call support for agent-facing applications, including homegrown J2EE applications and SaaS platforms such as Salesforce and MuleSoft

Requirements

What you’ll need

Requires a Bachelor’s degree, or foreign equivalent degree in Computer Science or Information Technology
5 (five) years of progressive post-baccalaureate experience in the job offered or 5 (five) years of progressive post-baccalaureate in a related occupation architecting and developing web applications
Utilizing observability tools such as Dynatrace, AppDynamics, Splunk, ELK, MuleSoft Any Point, Quantum Metric, and Catchpoint to create alerts, dashboards, reports, and synthetic monitoring
Working with integration technologies and API Gateways, including MuleSoft and WebLogic
Working with object-oriented programming languages such as Java, J2EE technologies, JavaScript, and frameworks such as Spring
Using automation tools and scripting languages (Python, Shell)
Utilizing containerization technologies (Docker, Kubernetes) and cloud services (Azure)
Working with DevOps practices and tools (CI/CD pipelines, Git, Jenkins)
Understanding network protocols, load balancing, and security principles
Using database SQL queries and building Linux shell scripts on demand

Benefits

Comp & perks

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

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

JavaJ2EEJavaScriptSpringPythonShell scriptingSQLDockerKubernetesCI/CD

Soft Skills

analytical skillstroubleshootingproblem-solvingcollaborationdocumentationcommunicationleadershipresiliencetrend analysisimpact assessment

Certifications

Bachelor’s degree in Computer ScienceBachelor’s degree in Information Technology