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

J&T Business Consulting; Corridor North (MD); On-site; USD 183,000 - 218,000; Full time

Benefits offered by this job

Health, Dental, Vision Insurance

Life and Disability Insurance

PTO and Holidays

401(k) Retirement Plan with Company 1:

Tuition Reimbursement

Job summary

J&T Business Consulting is seeking a Senior Software Engineer 3 Tester in Annapolis Junction, MD to lead automated testing for high-throughput C++ systems. The role includes building test frameworks, modernizing CI/CD pipelines, and developing Python-based test utilities in a complex hardware/software lab setting.

The ideal candidate has TS/SCI with Polygraph clearance, 15+ years of software engineering with a degree or 19 years without one, and strong experience with C++, Python, and shell

Qualifications

• Bachelor’s degree in Computer Science or related field; 15+ years software engineering with degree, or 19+ years without degree.
• Strong hands-on proficiency in C++, with Python and Shell scripting.
• Experience modernizing CI/CD pipelines and implementing automated testing frameworks.)
• Familiarity with hardware/test infra such as SDRs and enterprise servers.

Responsibilities

• Architect, develop, and execute automated testing suites for complex C++ apps.
• Modernize CI/CD pipelines to support automated build and testing.
• Write test automation scripts in Python and Shell.
• Validate interfaces against hardware test environments including SDRs.
• Lead software test efforts and set QA standards across teams.
• Collaborate with systems and hardware engineers on trade-offs and constraints.
• Create and review test procedures, outcomes, and design documentation.

Skills

C++

Python

Shell scripting

CI/CD

Education

Bachelor’s degree in Computer Science or related field

19 years of software engineering experience without a degree

Job description

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

Annapolis Junction, United States | Posted on 10/28/2026

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

• 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.