Software and Systems Development Engineer – Test Framework

Markon

Software and Systems Development Engineer implementing features and maintaining a Test Framework for PLEX Solutions. Supporting design, deployment, and operational maintenance of a distributed test orchestration system.

Posted 7/23/2026full-timeArlington • Virginia • 🇺🇸 United StatesMid-LevelSenior💰 $120,000 - $200,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in designing and implementing features for Test Framework subsystems, with strong proficiency in Python or Rust, and experience in CI/CD pipeline development. Capable of managing databases and deploying applications using Amazon CDK while providing technical support and documentation.

Highest-signal resume keywords

Python ProficiencyRust ProficiencyCI/CD Pipeline DesignAmazon CDK DeploymentActive TS/SCI W/ Polygraph

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Bash ScriptingDistributed Systems DesignService Interface DefinitionPostgreSQLGraphDBDynamoDBLinux/Unix EnvironmentsTechnical DocumentationDevice Adapter DevelopmentMonitoring with CloudWatch

Tools & Technologies

Amazon PipelinesGitLab PipelinesContainerization

Certifications & Qualifications

Active TS/SCI W/ Polygraph

Tech Stack

Tools & technologies

Distributed SystemsDynamoDBJenkinsLinuxPostgresPythonRustTypeScriptUnix

About the role

Key responsibilities & impact

Design and implement new features across all Test Framework subsystems: Test Manager (configuration, orchestration, results) and Asset Manager (reservation, configuration, tasking, device adapters)
Define and implement service APIs using IDLs
Develop and maintain device adapters that abstract physical lab hardware
Implement and maintain datastores across multiple database technologies, e.g., PostgreSQL, GraphDB, DynamoDB
Deploy and manage the Test Framework using Amazon CDK
Develop and maintain CI/CD pipelines in Amazon Pipelines and Gitlab Pipelines
Instrument and monitor services with CloudWatch, time series databases, and other alerting tools
Produce and maintain technical documentation
Provide technical support and guidance to users of the Test Framework
Triage and resolve production issues

Requirements

What you’ll need

Active TS/SCI W/ Polygraph
5+ years of professional software development experience
Proficiency in Python or Rust; experience with both is a plus.
Proficiency in Bash scripting
Experience designing and building distributed systems
Experience defining service interfaces using an IDL
Experience with CI/CD pipeline design and implementation (GitLab CI, Jenkins, or equivalent)
Familiarity with containerization
Experience working in Linux/Unix environments, with an emphasis on console usage

Benefits

Comp & perks

Medical
Dental
Vision
Life Insurance
Short-Term Disability
Long-Term Disability
401(k) match
Flexible Spending Accounts
EAP
Training and Tuition Assistance
Paid Time Off
Holidays