Software Engineer 3 Tester (TS/SCI Clearance with Full Scope Polygraph Required)

Zohorecruit; Corridor North (MD); On-site; USD 183,000 - 218,000; Full time

Job summary

Zohorecruit seeks a Senior Software Engineer 3 Tester in Annapolis Junction, MD, to lead automated testing for high‑throughput C++ software and test environments. This role requires active TS/SCI with Polygraph and hands‑on expertise in designing and executing automated test suites and CI/CD pipelines.

You will collaborate with systems and hardware engineers, develop Python and Shell scripts, and ensure software components meet strict performance and interface specifications.

Qualifications

• Bachelor’s degree in Computer Science or related discipline plus 15 years of software engineering experience on programs/contracts of similar scope and complexity, OR 19 years of relevant software engineering experience without a degree.
• Hands-on proficiency in C++, with Python and Shell scripting capabilities.
• Experience modernizing CI/CD pipelines and implementing automated continuous testing frameworks.
• Familiarity with test infrastructure hardware including SDRs and enterprise test servers.
• Proven ability to lead software test efforts and establish software development process standards.
• Ability to work with systems and hardware engineers to assess hardware/software trade-offs.

Responsibilities

• Architect, develop, and execute automated testing suites for complex C++ applications.
• Modernize CI/CD pipelines to support automated build processes and testing workflows.
• Write robust test automation scripts using Python and Shell.
• Validate interfaces and integration points against test infrastructure including SDRs and lab servers.
• Analyze requirements to derive detailed design and performance testing criteria.
• Debug code, identify root causes, and implement remediation.
• Lead QA across multi-functional engineering teams and drive testing standards.
• Collaborate with hardware engineers to assess trade-offs and constraints.
• Document test procedures and results, plus software design documentation.

Skills

C++

Python

Shell scripting

Test automation

Leadership

Quality Assurance

Education

Bachelor’s degree in Computer Science or related discipline

19 years of software engineering experience without a degree

Tools

CI/CD pipelines

Software Defined Radios (SDRs)

Enterprise test servers

Job description

Software Engineer 3 Tester (TS/SCI Clearance with Full Scope Polygraph Required)

Annapolis Junction, United States | Posted on 10/01/2026

Clearance Requirement: Active TS/SCI with Polygraph

Salary Range: $183,000 – $218,000 / year (dependent on experience, education, and skill set)

About the Role

Seeking a senior Software Engineer 3 Tester with strong C++ and automated testing expertise to support complex, high-throughput software and test environments in Annapolis Junction, MD.

In this role, you will lead software test development, build automation, and continuous integration efforts across advanced test infrastructure. You will design, develop, and execute automated test suites for C++ software systems, modernize CI/CD pipelines to support continuous testing, and evaluate hardware/software interactions—including Software Defined Radios (SDRs) and enterprise server environments—to ensure software components strictly adhere to critical performance, timing, and interface specifications.

Key Responsibilities

Architect, develop, and execute comprehensive automated testing suites and frameworks for complex C++ applications.

Modernize and maintain CI/CD pipelines to integrate automated build processes and continuous testing workflows.

Write robust test automation scripts and utilities using Python and Shell scripting.

Validate software interfaces and integration points against physical test infrastructure, including Software Defined Radios (SDRs) and lab server environments.

Analyze user and system requirements to derive detailed software design and performance testing criteria.

Debug existing software codebases, isolate root causes of defects, and implement effective remediations.

Serve as a technical lead across software development and test teams, overseeing quality control, code reviews, and testing standards.

Confer with systems and hardware engineers to assess hardware/software trade-offs, interface constraints, and operational limitations.

Author and review comprehensive test procedures, test outcome reports, and software design documentation.

Required Qualifications & Experience

Security Clearance: Active TS/SCI with a current Polygraph.

Experience & Education:

Bachelor’s degree in Computer Science or a related discipline from an accredited institution plus at least 15 years of software engineering experience on programs/contracts of similar scope and complexity, OR

19 years of relevant software engineering experience without a degree (4 additional years substituting for the degree).

Core Languages & Scripting: Strong hands-on proficiency in C++, complemented by Python and Shell scripting capabilities.

Test Engineering & DevOps: Demonstrated experience in CI/CD pipeline modernization and implementing automated continuous testing frameworks.

Hardware & Infrastructure: Familiarity with test infrastructure hardware, including Software Defined Radios (SDRs) and enterprise test servers.

Leadership & QA: Proven ability to lead software test efforts, establish software development process standards, and conduct quality assurance across multi-functional engineering teams.

Benefits & Compensation

This position offers a comprehensive benefits package designed to support employees both personally and professionally:

Comprehensive Health, Dental, and Vision Insurance

Basic Life and Disability Insurance

Paid Time Off (PTO) and Paid Holidays

401(k) Retirement Plan with Company Match

Tuition Reimbursement for ongoing education and professional development

An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic protected under federal, state, or local law.