Software and Systems Development Engineer – Test Framework
Confirmed on the employer's own hiring board on Oct 4, 2026. First seen by Alion on Oct 1, 2026.
Description
PLEX Solutions, A Part of Markon is looking for experienced Software and Systems Development Engineers to support the design, development, deployment, and ongoing maintenance of a new Test Framework - a purpose-built test orchestration and asset management platform. Candidate will work as member of the engineering team, contributing across the full software development lifecycle of the Test Framework and its operational use.The Test Framework is a distributed system that manages physical and virtual test infrastructure, orchestrates test execution, and stores and analyzes test results. It operates in an isolated environment with strict controls - creative problem-solving and debugging within those constraints is expected. The devices under test are embedded Linux systems operating in a physical lab network, so familiarity with embedded systems and networking is directly applicable.
Responsibilities
- 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
Qualifications
- 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
- Strong written and verbal communication skills
Preferred Qualifications:
- Experience with Amazon CDK or other Infrastructure as Code technologies
- Experience with embedded Linux systems
- Knowledge of networking fundamentals relevant to embedded and lab environments: Ethernet, IP routing, optical networking concepts, traffic generation and analysis
- Experience developing in classified or air-gapped environments with restricted tooling
- Experience with AWS CloudWatch for observability: metrics, logs, alarms, and dashboards
- Experience with test framework technologies, e.g., pytest, pytest-bdd, robot, behave, etc.
- Background in hardware-in-the-loop or lab automation testing environments
Salary Range
USD $120,000.00 - USD $200,000.00 /Yr.The Markon pay range for this position is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.Overview
Eager to join a team where your skills are valued, your growth is nurtured, and your impact is profound? Look no further than Markon, a premier consulting firm deeply dedicated to advancing our nation's most critical missions.
At Markon, we don't just offer jobs - we offer opportunities for personal and professional transformation. Empowering our employees to lead, innovate, and excel, we foster an environment where new ideas are not just welcomed but celebrated. As a perennial Washington Post Top Workplace, we prioritize the well-being and success of our team members, ensuring they can bring their best selves to work.
Headquartered in Falls Church, Virginia, Markon has garnered national recognition for our unwavering dedication to excellence in serving the intelligence community, as well as federal civilian and defense agencies. Our growing reach extends across 17 states, 116 countries, and 5 continents, where our team of dynamic professionals collaborates to deliver unparalleled program and project management services.
Markon values people and the tremendous impact each individual can make - which is why we’re consistently recognized as one of the best places to work in federal government consulting. Here, you can help solve the nation’s most important challenges, surrounded by colleagues who help you grow, advance, and succeed. We are deeply dedicated to what matters - bringing out the best in each other to advance our clients’ missions.Join us and make a meaningful impact.
Markon is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, national origin, age, protected veteran status, or disability status. This job posting will remain open until the position is filled.
Benefits Offered: 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, and Holidays.