We use cookies. Find out more about it here. By continuing to browse this site you are agreeing to our use of cookies.
#alert
Back to search results
New

Junior Software QA Engineer

Modern Technology Solutions, Inc.
$84,000.00 - $104,000.00 / yr
401(k)
United States, California, El Segundo
Jan 15, 2026
Modern Technology Solutions, Inc. (MTSI) is seeking a Junior Software QA Engineer in El Segundo, CA.
You will join a systems engineering team defining the next generation of space communication systems supporting US Space Force (USSF) satellite communications. You will support Systems Engineering & Integration (SE&I) activities in a multidisciplinary and collaborative environment. You will interface and collaborate with SE&I team members, contractors, government civilians and members of the USSF. You will lead and support several working groups responsible for leading technical discussion, resolve and identify risk, requirement gaps, developing briefings, writing, and tracking action items, and authoring meeting minutes.
The MILSATCOM Systems Engineering, Integration, and Test (MSEIT) effort provides leading edge Systems Engineering & Integration (SE&I) for the US Space Force's Space Systems Center (SSC). We support the Space Force's acquisition of state of the art satellite communications systems, providing global secure, survivable, and protected communications for our nation's warfighters. We seek technical individuals who will thrive in a highly collaborative work environment of small teams, using the most modern tools and methodologies to tackle the challenges of integrating complex space and ground communications systems.
Key Responsibilities:
  • Analyze and test software prototypes and/or applications as part of a multi-disciplinary team.
  • Collaborate across infrastructure, development, and QA teams.Work closely with software developers and other stakeholders to understand software requirements and specifications.
  • Maintain automated testing suites, detailed test plans, test cases, test scripts, test reports, and other documentation.
  • Identify software defects and issues, communicate defect reports, and provide detailed information on defect occurrences.
  • Perform root cause analysis of defects and implement corrective actions.
  • Conduct performance testing through load testing, stress testing, and scalability testing to ensure that applications can handle expected user loads without compromising speed or stability.
  • Work with complex algorithms to deliver optimized solutions for the end user.
Work Environment:
  • Location:On-site / Hybrid
  • Travel Requirements:Minimal
  • Working Hours:Standard
Qualifications:
Required:
  • Security Clearance:Ability to obtain and maintain a Secret clearance is required for this position
  • Experience and Education:BS degree in Computer Science or Information Systems; other degrees will be considered with relevant work experience
  • 1-3 years of software development, including object-oriented design, coding, and/or testing, with a focus on QA methodologies, tools, and processes.
  • Solid understanding of test development and test execution.
  • Working knowledge of performance testing, security testing, and usability testing.
  • Practical experience in one or more of the following: Python, Java, or Go.
  • Working knowledge of automated testing tools like Selenium or Cypress.
  • Excellent problem-solving skills.
  • Strong passion for conducting research, tackling complex problems, and continuously learning and adopting new technologies.
  • Organization capability with ability to handle competing priorities.
  • Strong interpersonal skills, communication (oral and written), and presentation skills.
Desired:
  • Familiarity with web applications and microservices architecture.
  • Familiarity with database technologies such as PostgreSQL, MySQL, and others.
  • Knowledge and experience in Jira and Confluence.
  • Experience in implementing Agile Software Development methodologies for efficient and iterative project management.
  • Proficient in using GitLab or other Tools for version control, CI/CD pipelines, and collaboration.
Compensation: The pay range for this position in California is $84,000/year to $104,000/year; however, base pay offered may vary depending on established government contract ranges, job-related knowledge, skills, and experience, and other factors. MTSI also offers a full range of medical, financial, and other benefits, dependent on the position offered. Base pay information is based on market location. Applicants should apply via MTSI's internal or external careers site.
#LI-MM1
#MTSI
#MTSIJOBS





  • Interesting Work:



    Our co-workers support some of the most important and critical programs to our national defense and security.






  • Values:



    Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the industry.






  • 100% Employee Owned:



    We have a stake in each other's success, and the success of our customers. It's also nice to know what's going on across the company; we have company wide town-hall meetings three times a year.






  • Great Benefits - Most Full-Time Staff Are Eligible for:





    • Starting PTO accrual of 20 days PTO/year + 10 holidays/year


    • Flexible schedules


    • 6% 401k match with immediate vesting up to $9k annually


    • Semi-annual bonus eligibility (July and December)


    • Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account


    • Up to $10,000 in annual educational reimbursement


    • Other company funded benefits, like life and disability insurance


    • Optional zero deductible Blue Cross/Blue Shield health insurance plan







  • Track Record of Success:



    We have grown every year since our founding in 1993.




Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and solutions company that provides high-demand technical expertise in Digital Transformation, Modeling and Simulation, Rapid Capability Development, Test and Evaluation, Artificial Intelligence, Autonomy, Cybersecurity and Mission Assurance

MTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.

For more information about MTSI, please visit www.mtsi-va.com

MTSI embraces nine core values including our first core value of Employees come first. Consistent with our Core Values, we are committed to Equal Opportunity, making decisions without regard to race, color, religion, sex, national origin, age, military/veteran status, disability, or any other characteristics protected by applicable law. MTSI is committed to Equal Employment Opportunity and providing reasonable accommodations to applicants and employees with physical and/or mental disabilities.


Applied = 0

(web-df9ddb7dc-vp9p8)