Expression Networks is looking for a full-time Software Test Engineer / SDET to join our development team in Washington, DC. You will design, develop, execute, and record automated and manual software tests for custom client/server web-based applications comprising a variety of programming languages, databases, and business intelligence tools. You will collaborate with technical staff and external stakeholders to coordinate test strategies and plans. You will work within a CMMI Dev-3 environment to deliver and deploy high quality, reliable software used worldwide.
Secret Clearance required to access client location

Job Responsibilities:

  • Test and debug new and existing software systems, web interfaces, and/or applications.
  • Automate the test and validation of applications, systems, and processes.
  • Write test plans, reports, and cases.
  • Track bugs/issues and work with developers to resolve them and re-test.
  • Analyzes and reviews business and system requirements.
  • Derives and produces test estimates.
  • Executes manual and automated tests.

Required Skills:

  • Secret Clearance required to access client location
  • 2-5 years of experience working as a QA Engineer or Software Engineer in Test
  • Minimum 2 years of experience working with Selenium
  • Bachelor's degree in computer science or related STEM discipline
  • Strong understanding of Object Oriented Programming (OOP) principals
  • Strong problem-solving and analytical skills
  • Excellent written and verbal communication skills, including presentation skills
  • Effective time management and organizational skills

Desired Skills:

  • Experience working with development tracking and collaboration tools such as Jira and Confluence
  • Experience working with code management tools, particularly Git
  • Experience testing REST APIs using tools such as Postman
  • Experience working with scripting languages such Python, Javascript, and/or Bash
  • Linux/Unix command line proficiency
  • Passionate about writing tests and breaking software
  • Ability to translate software functions into tests


During covid this position will be work from home and will require traveling to the client site in Annapolis, MD bi-weekly, during covid. Once covid concludes this position will be working out of our Washington, DC headquarters with partial remote options; this will include traveling to client site bi-weekly.


Expression Networks offers competitive salaries and benefits, such as:

  • 401k matching
  • PPO and HDHP medical/dental/vision insurance
  • Education reimbursement
  • Complimentary life insurance
  • Generous PTO and holiday leave
  • Onsite office gym access
  • Commuter Benefits Plan

About Expression Networks:

Founded in 1997 and headquartered in Washington DC, Expression Networks provides data fusion, data analytics, software engineering, information technology, and electromagnetic spectrum management solutions to the U.S. Department of Defense, Department of State, and national security community. Expression’s “Perpetual Innovation” culture focuses on creating immediate and sustainable value for our clients via agile delivery of tailored solutions built through constant engagement with our clients. Expression Networks was ranked #1 on the Washington Technology 2018's Fast 50 list of fastest growing small business Government contractors and a Top 20 Big Data Solutions Provider by CIO Review.

Equal Opportunity Employer/Veterans/Disabled