Penetration Tester jobs in District of Columbia

Columbia, Maryland

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4d ago

Conduct penetration testing across web applications, infrastructure, and network environments to identify security vulnerabilities. Perform vulnerability assessments, exploit validation, and security testing to evaluate application and network security. Identify, analyze, and document security weaknesses and provide recommendations for remediation. Apply red team techniques and Command-and-Control (C2) frameworks to simulate real-world cyberattacks. Mandatory: OSCP Certification. Experience with

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Full-time

Depends on Experience

Pentest Operator / Penetration Tester (Top Secret Clearance)

Beltsville, Maryland

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10d ago

Pentest Operator Top Secret Clearance required to start Beltsville, MD - ONSITE What You Will Do: The Pentest Operator will support and lead pentesting engagements on High Value Asset (HVA) systems and enterprise security assessments, helping clients understand real-world attack paths, validate defensive controls, and prioritize remediation activities based on mission risk. The role includes internal and external network testing, web application testing, Active Directory assessment, adversary e

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Contract

$170000

Senior Penetration Tester

Washington, District of Columbia

•

Today

Overview: GovCIO is currently hiring for a Senior Pentration Tester with an active TS/SCI clearance to support DHS onsite in Washington, DC. Responsibilities: The Senior Penetration Tester serves as Key Personnel responsible for leading advanced penetration testing and vulnerability assessment activities within a TS/SCI environment. This role ensures mission-critical security assurance across enterprise systems, applications, and cloud infrastructures by applying deep technical expertise, zer

Full-time

USD 124,540.00 - 180,000.00 per year

Penetration Tester

Remote

•

2d ago

POSITION OVERVIEW The Penetration Tester / Ethical Hacker is responsible for identifying, validating, exploiting, and supporting remediation of security vulnerabilities within large-scale Java applications. This is a hands-on technical role focused on application penetration testing and ethical hacking using real-world attack techniques. The successful candidate will combine strong Java development/engineering knowledge with practical penetration testing experience and work closely with Developm

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Full-time

Depends on Experience

Cyber Security Engineer - Penetration Tester (Journeyman)

Washington, District of Columbia

•

Today

We are an employee-centric company that truly values our team members and the contributions they make to our customers and the missions they support. We pride ourselves on being forward-leaning thinkers and on building teams that are, and continue to be, technically proficient across a broad range of cyber mission areas. OneZero full-time employees receive a highly competitive benefits package, including health, dental, vision, and life insurance, a 401(k) with company matching, paid time off an

Full-time

Penetration Tester / Ethical Hacker

Remote

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2d ago

Job Title: Penetration Tester / Ethical Hacker Cybersecurity Location: Remote (EST & CST) Job Description: A large enterprise Information Security Office seeks a Penetration Tester / Ethical Hacker for its Exposure Management Team. The Penetration Tester is responsible for strengthening the organizations cybersecurity posture through manual and automated penetration testing, red team engagements, and offensive security assessments. Responsibilities include planning and executing tests across a

Third Party, Contract

Depends on Experience

PEN Tester (OR) Penetration Tester

Remote

•

2d ago

PEN Tester (AI-enabled penetration-testing)- Remote 3+ years of experience in conducting penetration testing and vulnerability assessments. Experience testing web applications, APIs, networks, and cloud environments. Hands-on experience with industry-standard security testing tools and exploit frameworks. Experience identifying, validating, and documenting security vulnerabilities. Exposure to secure coding practices and application security concepts. Experience preparing security assessment re

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Contract, Third Party

Depends on Experience

Security Tester (DAST/SAST – Penetration)

Remote

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5d ago

Required Skills Dynamic App Security Testing (DAST): Advanced Penetration Testing - Manual: Advanced Secure Code Review: Advanced Static App Security Testing (SAST): Advanced Preferred Skills Same as above. Certifications like CEH, OSCP are preferred but not mandatory Responsibilities Perform manual and automated web application security assessments to identify security weaknesses and validate application resilience. Conduct Dynamic Application Security Testing (DAST) and Static Application Se

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Contract

55+

Salesforce QA Tester DHS Public Trust- Remote

Remote or Reston, Virginia

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3d ago

Job Description * We are open to supporting 100% remote work anywhere within the continental US * The Salesforce Quality Assurance Tester (QA Tester) is responsible for crafting thorough and comprehensive test scripts to ensure the highest standards of quality are met on every user story. The Senior QA tester will provide recommendations on QA best practices, create test scripts, provide detailed test results, and work with the development team to explain results. The QA tester must be proficie

Full-time

USD 67,355.00 - 114,503.00 per year

Software Tester / QA Engineer

Arlington, Virginia

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Today

The Software Tester/QA Engineer will ensure the quality of all WDP System software by developing and executing comprehensive test plans and test cases. This person will coordinate with the government to validate that testing is sufficient to meet all requirements and conduct various levels of testing, including unit, integration, and system testing across multiple environments. This person will identify, document, and track software defects through to resolution. This person will design and impl

Full-time

USD 99,000.00 - 174,000.00 per year

Automation Tester

Arlington, Virginia

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Today

Overview BigBear.ai is seeking an Automation Test Engineer to be responsible for manual testing all the aspects of a software solution. What you will do Perform automation testing of web based and mobile applicationsWork in Playwright, Selenium, Cucumber, CypressEnsure that all defects are entered into the defect tracking system (JIRA)Maintain test plans, scenarios, scripts, and procedures.Execute manual functional and automation testing based on analysis and understanding of the requirements

Full-time

QA/Automation Tester

Washington, District of Columbia

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6d ago

As a QA/Automation Tester, you will help ensure today is safe and tomorrow is smarter. Our work depends on Quality Assurance Test Engineer joining our team to develop the AI program focused on automating requirements and test case preparation, using Visual Studio Code, Python, Copilot AI, and other tools provided by USPS.MEANINGFUL WORK AND PERSONAL IMPACTKey Responsibilities:Design and develop test automation scripts using Selenium with Python, leveraging available AI models and LLMs to acceler

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Contract, Third Party

Depends on Experience

Regression Tester

Hybrid in Vienna, Virginia

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10d ago

Job Title: Regression Tester Location: Vienna, VA Type: Contract Work Model: Hybrid Responsibilities Perform complete regression tests of new and existing systems (legacy and vendor) functions on software when new or modified functions are introduced.Conduct functional tests to ensure the software is working properly, that they interface correctly with other systems and that appropriate reports are generated.Create and edit test cases in accordance with system requirements.Determine function pro

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Contract

Depends on Experience

Manual Software Tester - Clearance Required

Reston, Virginia

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4d ago

Cydecor is a premier Federal Government solutions provider, delivering differentiated innovations in mission systems and business platforms. We leverage leading-edge secure systems and software development, backed by industry-leading subject matter expertise, and business intelligence to enable decision-support and remain ahead of ever-evolving national security challenges. Our success rests squarely on three bedrock principles: People, our center of gravity; Mission, what inspires us; and an un

Full-time

USD 125,000.00 - 165,000.00 per year

Common Criteria Product Tester

Columbia, Maryland

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Today

Leidos is searching for a highly motivated product tester to support Common Criteria evaluation efforts with Leidos' Accredited Testing & Evaluation (AT&E) Laboratory. The ideal candidate is an independent performer who can perform commercial off-the-shelf (COTS) IT product security tests with minimal supervision, including devising product-specific test procedures and performing any configuration procedures necessary to enable the execution of tests. The candidate is also expected to interact w

Full-time

USD 120,000.00 per year

SME Software Quality Assurance Engineer/Tester

Columbia, Maryland

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Today

Assured Information Security (AIS) has an opening for a SME Software Quality Assurance Engineer/Tester will support government system testing activities by developing, executing, and documenting comprehensive software test plans, identifying defects, and coordinating with engineering and program personnel to ensure high-quality system performance. This role requires deep technical expertise, strong communication skills, and the ability to lead test processes on behalf of government stakeholders.

Full-time

USD 150,000.00 - 215,000.00 per year

Performance Tester

New Carrollton, Maryland

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5d ago

Title: Performance Engineer Candidates must be able to work without sponsorship. Location: New Carrollton, MD- On-site full-time Contact: REQUIREMENTS: Experience with performance testing and system tuning to ensure applications meet scalability requirements.Experience with LoadRunner for designing, executing, and analyzing performance tests.Skilled in bottleneck analysis and establishing performance baselines.Understanding of Service Level Agreements (SLA'S), Key Performance Indicators (KPIs),

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Contract

$32

Security Tester

Remote

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5d ago

We are hiring for a Security Tester opportunity. Role: Security Tester Location: Remote Position: 2 Work Arrangement: Remote Role Overview We are seeking experienced Security Testers with advanced expertise in manual penetration testing, Dynamic Application Security Testing (DAST), Static Application Security Testing (SAST), and secure code reviews. The ideal candidates will identify and validate application security vulnerabilities, assess risk and business impact, recommend practical remedia

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Full-time

Depends on Experience

Junior QA Manual Tester

Remote

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26d ago

Position: Junior QA Manual Tester Full Time Multiple Locations : Boston, MA ,NY, NJ, Washington DC, VA, Chicago IL, NC, PA, Wisconsin, MN Roles and Responsibilities: Follow the appropriate testing strategy for each caseCreate test plans and test conditionExplore features as they are being developed to identify design, testability and usability issuesWrite and execute test cases/scripts; providing daily updates using ALM, JIRA, and other toolsUnderstanding of common software failures and faults a

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Full-time

30 - 33

Immediate Placement:- EDI Tester

Remote

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3d ago

Position: EDI Tester Location: Remote Type contract Job Description: We are seeking an experienced EDI Tester with hands-on expertise in EDI transaction testing, file transmission, and validation. Required Skills: Strong experience in EDI testing and validation.Hands-on experience pushing/transmitting EDI files and validating test results.Experience with X12 transactions: 850, 855, 856, 810, 845, 852, and 867.Ability to identify transaction errors, validate data accuracy, and document test re

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Contract

Depends on Experience

Penetration Tester jobs in Washington, DC, USA