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At&T Testing Jobs (NOW HIRING)

CNO Developer

Hanover, MD · On-site

$120K - $150K/yr

Assists with the design, development, documentation, testing, and debugging of applications ... But more than that, we at T-Rex are committed to creating a culture that supports the development ...

At T. Rowe Price, we identify and actively invest in opportunities to help people thrive in an ... acceptance testing, and working with technology teams to deliver enhancements that generate ...

At T. Rowe Price, Data Scientists build the analytics and AI that power better investment decisions ... Employ automated testing for code, data, and models (unit tests, data validation, drift/bias checks ...

At T. Rowe Price, Data Scientists build the analytics and AI that power better investment decisions ... Employ automated testing for code, data, and models (unit tests, data validation, drift/bias checks ...

At T. Rowe Price, Data Scientists build the analytics and AI that power better investment decisions ... Employ automated testing for code, data, and models (unit tests, data validation, drift/bias checks ...

At T. Rowe Price, Data Scientists build the analytics and AI that power better investment decisions ... Employ automated testing for code, data, and models (unit tests, data validation, drift/bias checks ...

If the candidate is not local, travel will be required at the expense of the Capgemini project team ... Global Technical Skills Family : 6249 (T) Testing Tools / Testing Automation / Performance Testing ...

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How much do at&t testing jobs pay per hour?

As of Aug 7, 2026, the average hourly pay for at&t testing in the United States is $29.58, according to ZipRecruiter salary data. Most workers in this role earn between $19.47 and $32.93 per hour, depending on experience, location, and employer.

What are the typical day-to-day responsibilities for someone in an AT&T Testing position?

As an AT&T Testing professional, your daily tasks may include designing and executing test plans, troubleshooting network issues, documenting defects, and collaborating with developers and network engineers to resolve problems. You may also participate in system upgrades, monitor network performance, and verify the implementation of new services or features. The role often involves both independent testing and teamwork to ensure new products or solutions meet AT&T’s quality standards. This gives you the opportunity to work in a fast-paced environment where innovation, accuracy, and collaboration are highly valued.

What is an AT&T Testing?

An AT&T Testing job typically involves evaluating and ensuring the quality, functionality, and performance of AT&T's products and services, such as networks, software, or devices. Testers use various tools and methodologies to identify defects, troubleshoot issues, and verify compliance with company standards. These roles may include manual and automated testing processes to enhance customer experience and network reliability.

What are the key skills and qualifications needed to thrive in the AT&T Testing position, and why are they important?

To thrive in an AT&T Testing role, candidates typically need a background in telecommunications, experience with network protocols, and strong analytical and problem-solving abilities. Familiarity with testing tools such as Wireshark, JMeter, or proprietary AT&T systems, and certifications like ISTQB or Cisco CCNA, are highly beneficial. Effective communication, teamwork, and attention to detail are valuable soft skills in this position. These qualifications ensure reliable testing of network systems and products, minimizing downtime and supporting high-quality service delivery.

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What cities are hiring for At&T Testing jobs? Cities with the most At&T Testing job openings:
What are the most commonly searched types of At&T Testing jobs? The most popular types of At&T Testing jobs are:
What states have the most At&T Testing jobs? States with the most job openings for At&T Testing jobs include:
Infographic showing various At&T Testing job openings in the United States as of August 2026, with employment types broken down into 70% Full Time, and 30% Part Time. Highlights an 90% In-person, and 10% Remote job distribution, with an average salary of $61,523 per year, or $29.6 per hour.

$120K - $150K/yr

Other

Medical, Dental, Vision, Retirement, PTO

Re-posted 20 days ago


Job description

T-Rex is looking for a talented CNO Developer to work on a program in the Hanover, Maryland area in support of the Intelligence Community.

Responsibilities:

This Position Is An Onsite Role

In this role, you will contribute to the development of mission-critical offensive cyber capabilities and drive excellence in advanced Computer Network Operations (CNO). You'll be part of a dynamic team working on next-generation solutions that safeguard our national security systems.
 

 Responsibilities include but are not limited to:

  • Design and develop new hardware- or software-based CNO capabilities
  • Assists with the design, development, documentation, testing, and debugging of applications software and systems
  • Apply knowledge of security concepts and network technologies
  • Ensure software engineering standards are consistently met
     

Minimum Qualifications:

  • BS Degree in a technical discipline or High School Diploma and 4+ years of technical experience
  • Experience in Python or C/C++ programming
  • Experience with troubleshooting and debugging 
     

Preferred Qualifications:

  • Experience with networking (TCP/IP) and socket-level programming
  • Experience with low-level system internals across one or more platforms
  • Experience in software analysis or reverse engineering
  • Experience with developing CNO capabilities
  • Understanding of unit testing frameworks and practices
  • Understanding of assembly programming concepts
  • Familiarity with Atlassian tools such as JIRA, Confluence, and Crucible
     

Security Clearance Requirements:

  • Must have a current/active TS/SCI w/Polygraph security clearance and be willing and able to obtain another polygraph prior to start, if required.
     

Physical Requirements:

  • Ability to remain stationary for extended periods (50% of the time) and operate computer equipment and office machinery.

T-Rex Overview

Established in 1999, T-Rex Solutions, LLC is a proven mid-tier business providing data-centric mission services to the Federal government as it increasingly tries to secure and leverage the power of data. We design, integrate, secure, and deploy advanced technical solutions for our customers so they can efficiently fulfill their critical objectives. T-Rex offers both IT and professional services to numerous Federal agencies and is a leader in providing high quality and innovative solutions in the areas of Cloud and Infrastructure Services, Cyber Security, and Big Data Engineering.

T-Rex is constantly seeking qualified people to join our growing team. We have built a broad client base through our devotion to delivering quality products and customer service, and to do that we need quality individuals. But more than that, we at T-Rex are committed to creating a culture that supports the development of every employee's personal and professional lives. T-Rex has made a commitment to maintain the status of an industry leader in compensation packages and benefits which includes competitive salaries, performance bonuses, training and educational reimbursement, Transamerica 401(k) and Cigna healthcare benefits.

T-Rex is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex (including pregnancy and sexual orientation), parental status, national origin, age, disability, family medical history or genetic information, political affiliation, military service, or other non-merit based factors.

In compliance with pay transparency guidelines, the annual base salary range for this position is $120,000 - $150,000. Please note that the salary information is a general guideline only. T-Rex considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/training, key skills, internal peer equity, as well as market and business considerations when extending an offer.

T-Rex offers a diverse and collaborative work environment, exciting opportunities for professional growth, and generous benefits, including: PTO available to use immediately upon joining (prorated based on start date), paid parental leave, individual and family health, vision, and dental benefits, annual budget for training, professional development and tuition reimbursement, and a 401(k) plan with company match fully vested after 60 days of employment among other benefits.