Senior Penetration Tester Job at Columbia Technology Partners (Annapolis Junction)

Senior Penetration Tester

As a Penetration Tester, you'll conduct regular, comprehensive security assessme...

Location

Belgium , Brussels

Salary:

Not provided

Sopra Steria

Expiration Date

Until further notice

Requirements

Minimum of 5 years' experience in one or more of the following areas: Penetration Tester, Red/Purple Team Member, Security Engineer
Knowledge of technologies up to system level (web frameworks, communications protocols, database systems)
Offensive security knowledge of cyber-attack techniques, vulnerabilities, and mitigation strategies
Knowledge of penetration testing tools, frameworks, and methodology
Skills using Kali Linux, Nmap, PowerShell, Metasploit, Cobalt Strike, OWASP ZAP, Burp Suite
Proficiency in scripting
Awareness of frameworks such as MITRE ATT&CK and NIST and how they can be applied effectively within an enterprise
Familiarity with the latest exploits, tactics, techniques, and procedures (TTP), vulnerability remediation and security trends
Cyber security qualifications from Offensive Security, SANS, Pentester Academy, CREST, eLearnSecurity or others

Job Responsibility

Scoping and executing of complex penetrations test across a wide scope of technologies, products, services, and applications and critical infrastructure companies
Helping the team to define and improve the internal security testing programme
Documenting technical issues both Cyber and IT related during testing assessments
Improve our monitoring services by working in purple style exercises and operating in a red team capacity to improve the ability to detect and respond to threats
Supporting incident response by providing context and expertise around cyber threats
Mentor to our junior & medior colleagues

What we offer

Extensive career development opportunities, both local and international
Part of a dynamic network of 56,000 professionals at all stages of their careers
Wide array of offices to explore

Fulltime

Senior Penetration Tester

The role involves conducting deep-dive vulnerability assessments on a variety of...

Location

Singapore , Singapore

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

Bachelor’s degree with a minimum of 5 years of experience
Expertise in Java, JavaScript (React, Node.js), .NET (ASP.NET, C#, Webflow, MVC, WebAPI), Application Infrastructure (Web/Application Servers, Databases, Middleware Components), and Cloud Computing (Google Cloud Platform, AWS, Azure)
Expertise in application security, ethical hacking using security tools (Burp Suite, AppScan), knowledge of OWASP Top 10, CWE/SANS Top 25, Threat Modeling
Industry-accredited security certifications such as GIAC GWAPT, GPEN, GXPN, OSCP and/or CISSP

Job Responsibility

Act as a subject matter expert in offensive information security
Drive remediation by outlining a defense-in-depth approach
Report and articulate vulnerability assessment results
Contribute to the review of internal processes and activities

Fulltime

Senior Penetration Tester

A senior penetration tester's main responsibility is to execute highly complex a...

Location

Belgium , Olen

Salary:

Not provided

Belden, Inc

Expiration Date

Until further notice

Requirements

5+ years of hands-on experience in penetration testing, red teaming, or a related offensive security role
Relevant industry certifications such as Offensive Security Certified Professional (OSCP), Certified Ethical Hacker (CEH), or GIAC certifications (e.g., GPEN, GWAPT)
Proficiency in at least one scripting language (e.g., Python, Ruby, PowerShell) for automating tasks and developing custom tools
Deep knowledge of Windows and Linux/Unix operating systems
Strong understanding of TCP/IP, network protocols, and common network services
Extensive experience with common web vulnerabilities (e.g., OWASP Top 10) and familiarity with various web application frameworks
Experience with penetration testing in at least one major cloud provider (e.g., AWS, Azure)
Excellent written and verbal communication skills
Strong problem-solving and analytical abilities
Ability to work independently and as part of a team

Job Responsibility

Executing Advanced Penetration Tests: conduct in-depth security assessments on complex systems, including web applications, cloud environments, networks, and mobile applications
Developing Custom Tools and Exploits: develop own scripts and exploits to bypass sophisticated security controls and find zero-day vulnerabilities
Technical Mentorship: Guiding and mentoring junior and mid-level testers
Reporting and Communication: writing detailed technical reports that clearly outline vulnerabilities, their potential impact, and actionable recommendations for remediation
Staying Current: continuously research new threats, attack vectors, and security technologies

Senior Penetration Tester

Serve as a Subject Matter Expert providing testing expertise of the Risk Managem...

Location

United States , Annapolis Junction

Salary:

Not provided

Columbia Technology Partners

Expiration Date

Until further notice

Requirements

Eight (8) experience of related work experience as a Penetration Tester performing both network and application-level testing using established test protocols and methods
A Bachelor's degree in Computer Science or a related field (e.g. General Engineering, Computer Engineering, Electrical Engineering, Systems Engineering, Mathematics, Computer Forensics, Cybersecurity, Information Technology, Information Assurance, Information Security, and Information Systems)
In lieu of a Bachelor's degree, four (4) additional years of Penetration Testing experience maybe substituted
U.S. Citizenship is required for all applicants
All applicants and employees are subject to random drug testing in accordance with Executive Order 12564
Employment is contingent upon successful completion of a security background investigation and polygraph
DoD 8570 compliance with IAT III is required
This position requires an active Security Clearance with appropriate Polygraph

Job Responsibility

Serve as a Subject Matter Expert providing testing expertise of the Risk Management Framework
Direct and/or participate in the testing phase of security controls assessments using specialized knowledge of network protocols, operating systems, architectures, equipment, services, and standards
Perform vulnerability and penetration testing using a wide variety of tools
Research and evaluate emerging technologies relevant to information systems security
interpret agency specific and federal security regulations
Perform both network and application-level testing using established testing protocols and methods

What we offer

Medical: CTP offers 3 superior plans, bringing our employees both in-network and out-of-network options
Vision + Dental: Both free to you + paid in full by CTP
Retirement: 401k - 6% company contribution
PTO + Leave: A work life balance is extremely important to our team here at CTP, which is why our paid time off plans are so lucrative. Offering customizable leave plans to meet your needs is just one of our many perks! Jury Duty, Bereavement + Military Leave provided
Career Growth: Up to $10,000 provided for approved career-related learning, training, education, and/or tuition
Life and AD&D Insurance/Short-Term & Long-Term Disability: More peace of mind, at zero cost to you
Profit Sharing Bonus: End of year cash gets added to your bottom-line
Referral Bonus Program: Our tiered program provides an incentive with each stage of the hiring process your referral passes. Our bonuses range from $7,000-$20,000, if your referral joins the team

Fulltime

Senior Penetration Tester

Join NTT DATA as a Senior Penetration Tester and enhance our cybersecurity capab...

Location

Romania , Bucuresti

Salary:

Not provided

NTT DATA

Expiration Date

Until further notice

Requirements

5+ years in penetration testing across web apps, APIs, containers, networks, OS, databases, and cloud platforms
Strong experience in technical writing and producing detailed security reports
Deep understanding of offensive security operations and secure development practices
Familiar with OWASP Top 10, NIST, CIS, MITRE ATT&CK, and threat actor methodologies
Skilled in scripting languages: Python, PowerShell, Ruby, Bash
Advanced exploit development and evasion techniques
Proficient in tools: Kali, Metasploit, Nessus, Nuclei, Nmap, Burp Suite, PowerSploit, Impacket
Flexible, analytical, and adaptable
degree or certifications (OSCP, OSEP, etc.) preferred but not required

Job Responsibility

Perform network penetration, web application testing, source code reviews, threat analysis, and social-engineering assessments
Develop scripts, tools, or methodologies to enhance NTT DATA, Inc’s Purple Team and Security Operations capabilities
Monitor available open source intelligence feeds for any NTT DATA related information
Develop detailed threat models
Thoroughly document techniques, tactics and proofs of concept used during security testing and red team exercises
Develop comprehensive and accurate reports and presentations for both technical and executive audiences

Fulltime

Senior Penetration Tester

Ryanair Labs are currently recruiting for a Senior Penetration Tester to join Eu...

Location

Ireland , Dublin

Salary:

Not provided

Ryanair - Europe's Favourite Airline

Expiration Date

Until further notice

Requirements

4+ years of information security and penetration testing work experience preferred
Proficiency in security assessments and the ability to conduct threat modelling for a wide range of systems, applications, and infrastructure
Strong understanding of network protocols, operating systems (Linux, Windows), web applications, Active Directory, and cloud environments (e.g., AWS, Azure)
Good programming skills. Python is our default, but any other language is welcome
Experience in engaging with business stakeholders to define test scope, gather requirements, and communicate findings
Excellent communication skills in English, with the ability to translate complex technical findings into clear reports for both technical and non-technical audiences
Capable of working independently or in a team
Relevant penetration testing or offensive security certifications (e.g., OSCP, OSWE, CRTP, CRTE) are preferred

Job Responsibility

Conduct penetration tests on web applications, internal and external networks, mobile platforms, APIs, cloud environments (e.g., AWS, Azure), PCI environments and physical assets. This task includes the scope definition and inventorying of the applications that will be assessed
Deliver detailed technical reports and executive summaries with clear remediation recommendations
Assist in the development of internal methodologies, frameworks, and toolsets
Develop custom tools, scripts, and exploits to support advanced testing scenarios
Stay current with the latest threats, vulnerabilities, and exploit techniques

What we offer

A competitive but flexible technical career plan
Optional discounts on health insurances (various companies)
Travel discounts

Fulltime

Penetration Tester

Are you an ambitious cybersecurity professional with a passion for uncovering vu...

Location

United Kingdom

Salary:

Not provided

360 Resourcing Solutions

Expiration Date

Until further notice

Requirements

Hands-on experience in penetration testing or IT Health Check delivery
Current penetration testing qualification such as CREST Practitioner Security Analyst (CPSA), Crest Registered Tester (CRT), or Cyber Scheme Team Member (CSTM)
2+ years of penetration testing experience (or equivalent practical experience)
Eligibility to obtain and maintain UK security clearances
Familiarity with common tools such as Burp Suite, Nmap, Nessus, Metasploit, etc.
Understanding of network protocols (TCP/IP, OSI model) and common web application vulnerabilities

Job Responsibility

Keep your penetration testing qualifications current and continue developing your technical expertise in line with business needs
Support the delivery of IT Health Checks and penetration tests, identifying vulnerabilities and providing clear, actionable recommendations to clients
Work closely with senior consultants, sharing insights and best practices while contributing to a culture of learning within the Security Testing Practice
Expand your skill set to offer a range of security testing services that support evolving business and client requirements

What we offer

We offer competitive pay, 25 days holiday (rising to 27), 2 volunteering days, 1 personal day, plus bank holidays
Our benefits include a company-matched pension, life assurance, enhanced parental leave, cycle2work scheme, and more

Senior Security Engineer

PagerDuty is seeking a Senior Security Engineer to join our diverse, customer-fo...

Location

Canada , Toronto

Salary:

137000.00 - 207000.00 CAD / Year

PagerDuty

Expiration Date

Until further notice

Requirements

Proficiency with Application & Product Security typically associated with 4 - 5 years of experience in a Security Engineering role working with a cloud-native, microservices environment, preferably AWS
Familiarity with cloud-native product technologies including: Vulnerability detection via multiple approaches including SAST, DAST, SCA, and runtime (e.g., Qualys/Nessus, Wiz, Snyk, GHAS, Semgrep, etc.)
CI/CD technologies and integrations (e.g., CircleCI, Buildkite, Helm, Terraform, Chef)
Product security event logging standards and analysis tools (e.g., SIEM such as: SumoLogic, LogRythm, or Splunk, etc.)
Security Incident Response & Risk Management processes and tools
Proficiency in at least one programming language and framework (e.g. Python, Bash, Phoenix/Elixir, Java, Ruby on Rails), typically associated with 3 - 4 years of experience with the language/framework
Have exceptional written, oral communication, and interpersonal skills
Organizational skills with the ability to successfully manage multiple priorities and deadlines

Job Responsibility

Embrace the role of hands-on technical lead in defining product security standards and guiding platform protections
Establish criteria and conduct comprehensive security reviews throughout all stages of product development to identify and address security risks
Perform regular threat assessments, coordinate with third-party testers for penetration testing, and conduct internal penetration testing to identify and mitigate security risks
Mentor and guide team members to ensure product and business objectives are prioritized in project implementations, fostering a strong documentation culture with project charters and design documents
Work with loosely defined requirements where you exercise your analytical skills to clarify questions, share your approach, and collaborate with the team to design and implement effective security frameworks. Maintain a strong appetite for challenging problems with a high degree of ownership
Participate in the team’s On-Call rotation, triaging and addressing security issues as they arise, and implement measures to prevent future occurrences
Enable service team security implementations by developing security-as-code constructs, including infrastructure-as-code (IaC) modules, libraries and frontend components, while creating and maintaining developer-focused documentation to promote easy adoption
Establish and uphold baseline standards and hardened configurations for platform components
Continuously enhance security frameworks by focusing on product security standards and software supply chain protections, tailored for application security in cloud-native, microservices environments

What we offer

Competitive salary
Comprehensive benefits package from day one
Flexible work arrangements
Company equity
ESPP (Employee Stock Purchase Program)
Retirement or pension plan
Generous paid vacation time
Paid holidays and sick leave
Dutonian Wellness Days & HibernationDuty - companywide paid days off in addition to PTO
Paid parental leave: 22 weeks for pregnant parent, 12 weeks for non-pregnant parent (some countries have longer leave standards and we comply with local laws)

Fulltime

Senior Penetration Tester

Columbia Technology Partners

Location:
United States , Annapolis Junction

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
January 26, 2026

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Location:United States , Annapolis Junction

Category:IT - Software Development

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Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:January 26, 2026

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Location:
United States , Annapolis Junction

Category:
IT - Software Development

Contract Type:
Not provided

Job Posted:
January 26, 2026