L3Harris Technologies logo

Senior Systems Engineer, User Acceptance Tester

L3Harris Technologies

On-site
Springfield, VA
Full-time
Senior
6+ yrs
$107k–$198kPosted 4w ago

Real job — pulled straight from L3Harris Technologies’s careers page · Verified July 19, 2026 · No reposts.

Job description

L3Harris Technologies is hiring a Senior Systems Engineer, User Acceptance Tester — a full-time, based in Springfield, VA role ($107k–$198k). Apply directly on L3Harris Technologies's careers page below.

Senior Specialist, Systems Engineer - User Acceptance Tester

Location: Springfield, VA, US

Employment Type: Full-Time

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title: Senior Specialist, Systems Engineer – User Acceptance Tester
Job Code: 38609
Job Location: Springfield, VA (100% Onsite)
Work Schedule: 5/8 Monday-Friday

 

Job Description:

 

L3Harris Technologies currently has an opening for a User Acceptance Tester with expertise in Test and Integration for an important National Security Program.

The successful candidate will support a high performing team of Government and Contractor professionals by testing software releases to ensure they function correctly, documenting failed test cases, and documenting any changes or updates needed to existing procedures. This role is critical in maintaining the integrity and performance of our software products. 

Essential Functions:

  • Design, develop, and manage test cases, including traceability to requirements, user stories, etc.
  • Execute software testing events using industry-accepted test tools.
  • Participate in User Acceptance Testing (UAT) and Government Acceptance Testing (GGAT) exercises.
  • Document and report any bugs, issues, discrepancies, or failed test cases found during testing government defect tracking tool.
  • Develop/deliver test reports as well as present finding to project stakeholders.
  • Able to independently develop and precisely follow test scripts with attention to detail, document findings.
  • Use strong written and verbal communication skills, with experience updating senior leadership.
  • Able to work independently with minimum supervision.

 

Qualifications:

  • Bachelor’s Degree and minimum 6 years of prior relevant experience. Graduate Degree and a minimum of 4 years prior related experience. In lieu of a degree, minimum of 10 years of prior related experience.
  • Active Top Secret/SCI with CI Polygraph
  • 5+ years of software integration and test experience with a focus on user acceptance testing (UAT).
  • Experience developing and executing manual and automated software tests.
  • Experience using industry-accepted test automation tools, such as Test Complete or Selenium.
  • Experience using industry-accepted requirements repository and defect tracking tools (ex. Backlog, Bugzilla, Jira, etc.)

 

Preferred Additional Skills:

  • Knowledge of NRO organization and operational missions.
  • Relevant certification or coursework (e.g., ISTQB Certified Tester – Acceptance Testing (CT-AcT).

    In compliance with pay transparency requirements, the salary range for this role in Virginia - Greater Washington, D.C. Area is $106,500 - $197,500.00. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.

L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.

Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.

By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.

L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish.

Get Systems Engineer jobs like this

New roles from thousands of companies land hourly, straight from their careers pages. Get the freshest matches by email so you never miss one.

Email me new jobs
Sequoia Connect logo

Lead Analytics Engineer

Atlanta, GA
✓ From careers page· 51m ago
Sequoia Connect logo

Lead Analytics Engineer

Remote · Mexico-eligible
✓ From careers page· 51m ago
Sequoia Connect logo

Big Data Lead

Mexico
✓ From careers page· 51m ago
Accenture logo

Mainframe Development Specialist

Sao Paulo
✓ From careers page· 1h ago

Frequently asked questions

What is the salary for Senior Systems Engineer, User Acceptance Tester at L3Harris Technologies?

The estimated salary range for Senior Systems Engineer, User Acceptance Tester at L3Harris Technologies is $107,000 - $198,000 USD per year.

What skills are required for Senior Systems Engineer, User Acceptance Tester at L3Harris Technologies?

The required skills for Senior Systems Engineer, User Acceptance Tester at L3Harris Technologies include: JIRA, Selenium.

What is the seniority level for Senior Systems Engineer, User Acceptance Tester at L3Harris Technologies?

Senior Systems Engineer, User Acceptance Tester at L3Harris Technologies is a Senior level position.

How do I apply for Senior Systems Engineer, User Acceptance Tester at L3Harris Technologies?

You can view the full description and apply for Senior Systems Engineer, User Acceptance Tester at L3Harris Technologies on EchoJobs: https://echojobs.io/job/l3harris-technologies-senior-specialist-systems-engineer-user-acceptance-tester-m2hcu.