Software Testing Engineer

M9 Solutions

Software Testing Engineer developing requirements, automated tests, and acceptance testing for M9 Solutions’ federal-government IT clients. Supporting Mail.dat and Mail.XML specifications, validation, documentation, and metrics.

Posted 8/21/2026full-timeRemote • District of Columbia, Washington • 🇺🇸 United StatesMid-LevelSenior💰 $105,000 - $124,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing software requirement specifications, managing technical documentation, and performing comprehensive testing, including customer acceptance and production validation. Proficient in utilizing various programming languages and tools for automated testing and documentation.

Highest-signal resume keywords

Software Requirement Specification (SRS) DevelopmentAutomated Test Script Creation Using PythonCustomer Acceptance Testing (CAT)Agile and Waterfall Methodology ExperienceISTQB Certification

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Test Script DevelopmentProduction ValidationBusiness Process AnalysisMail.DAT KnowledgeMail.XML KnowledgeSQL ScriptingJava ScriptingPython ScriptingCSV HandlingXML Handling

Soft Skills

Documentation SkillsAnalytical ThinkingCommunication Skills

Tools & Technologies

SeleniumAFTMS ExcelMS WordMS ProjectMS VisioMS AccessMS Workflow

Certifications & Qualifications

Public Trust ClearanceSoftware Testing CertificationISTQB (CTAL-TAE)ISTQB (CT-AI)

Industry Keywords

Mail IndustryMailer Technical Advisory Committee (MTAC)Requirement Traceability Matrix (RTM)Standard Operating Procedures (SOPs)Functional Testing

Tech Stack

Tools & technologies

JavaPythonSeleniumSQL

About the role

Key responsibilities & impact

Develop software requirement specification (SRS) documents supporting functional requirements affecting Mail.dat and Mail.XML technical file specifications
Manage, update, and maintain supported technical specifications and guides
Develop new specifications and guides for new or revised functionality across systems
Support review of Technical Requirement Documents (TRD)
Develop and update test scripts
Perform customer acceptance testing
Perform production validation through smoke testing and functional testing
Document testing outcomes and provide artifacts
Provide TLSC documentation and Requirement Traceability Matrix (RTM)
Participate in mail industry meetings/forums and Mailer Technical Advisory Committee (MTAC) workgroups, task groups, and user groups
Develop performance metrics to track and report Customer Acceptance Testing status
Develop automated test scripts
Develop training materials, Standard Operating Procedures (SOPs), and application guides
Perform other related duties as assigned

Requirements

What you’ll need

US Citizenship is required
An active Public Trust level clearance is required
A Bachelor's degree from an accredited college/university in CS, IT, or another science-related field
Experience eliciting and documenting business processes and requirements
Experience analyzing business processes and recommending improvements
Experience creating manual and automated test scripts using Python, Selenium, AFT, etc.
Experience performing customer acceptance testing or user acceptance testing
Experience documenting test results and providing test artifacts
Experience performing production validation through smoke testing, regression testing, and functional testing
Experience working with CSV, XML, JSON, and relational databases
Experience with MS M365 tools: MS Excel, Word, Project, Visio, Access, and Workflow
Experience with software test management using Agile and/or Waterfall methodology
ISTQB (CTAL-TAE), ISTQB (CT-AI), or similar certification
Mail.DAT and Mail.XML knowledge is preferred
Experience with AI-based automation testing tools is preferred
Software Testing certification is preferred
Knowledge of SQL, Java, and Python scripting languages is preferred/optional

Benefits

Comp & perks

Competitive compensation package
M9 Benefits (benefits details linked in posting)
Equal opportunity employment
Support for veterans, transitioning service members, military spouses, and dependents