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

New

Test Analyst / Senior Test Analyst - Penetration Testing

We are seeking a talented and motivated Application Penetration Tester to join o...

Location

India , Mumbai

Salary:

Not provided

NEC Software Solutions

Expiration Date

Until further notice

Requirements

Experience using a formal application penetration testing methodology such as Open-Source Security Testing Methodology Manual (OSSTMM) or Penetration Testing Execution Standard (PTES)
Experience using Kali Linux including bundled penetration testing tools (Nmap, Wireshark, OWASP ZAP, Sqlmap, Metasploit)
Experience using Burp Suite for application penetration testing
Knowledge of scripting and programming languages (e.g., Python, Ruby, Bash, Powershell) for custom tool development and automation
Familiarity with various operating systems and network structures, including client/server, Unix/Linux systems, Mac OS X, VMware/Xen, Virtual Box and cloud technologies such as AWS, Azure, or Google Cloud and Active Directory
Understanding of common application issues and remediation techniques, OWASP Top 10
Understanding of secure development practices within a secure software development lifecycle, experience of Waterfall, Agile and DevOps / DevSecOps practices
Hold at least one recognised application penetration testing certification, e.g. Certified Ethical Hacker (CEH), Offensive Security Certified Professional (OSCP), GIAC Penetration Tester (GPEN), GIAC Web Application Penetration Tester (GWAPT), CompTIA PenTest+
Can produce high quality documentation including test reports and best practice guidance
Good Interpersonal, written and verbal communication skills

Job Responsibility

Plan and execute penetration testing engagements for web applications, APIs, mobile applications, thick clients, infrastructure and cloud penetration testing
Identify and exploit vulnerabilities in applications using manual and automated testing techniques
Document findings in detail, including proof-of-concept exploits and recommendations for remediation and report writing skills
Collaborate with development and security teams to remediate vulnerabilities and improve application security
Stay up-to-date on the latest hacking techniques, vulnerabilities, and security tools
Participate in security code reviews and provide guidance on secure coding practices
May assist with developing and maintaining internal security tools and processes

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

Senior Penetration Tester

Serve as a Subject Matter Expert (SME) in the testing and evaluation of security...

Location

United States , Annapolis Junction

Salary:

Not provided

Columbia Technology Partners

Expiration Date

Until further notice

Requirements

U.S. Citizenship is required for all applicants
Minimum of eight (8) years of relevant experience as a Penetration Tester, performing both network and application-layer testing with established testing methods
Bachelor's degree in Computer Science or a related technical field (e.g., Computer Engineering, Electrical Engineering, Systems Engineering, Mathematics, Cybersecurity, Information Technology, Information Assurance, Information Security, or Information Systems)
In lieu of a bachelor's degree, an additional four (4) years of penetration testing experience may be substituted
DoD 8570 compliance with IAT III is required
This position requires an active Security Clearance with appropriate Polygraph
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

Job Responsibility

Conduct vulnerability assessments and penetration testing using a wide range of security tools
Perform both network-level and application-level security testing following established methodologies and protocols
Research, analyze, and assess emerging technologies relevant to information systems security
Interpret and apply federal and agency-specific security regulations to ensure compliance and strengthen security posture
Serve as a Subject Matter Expert (SME) in the testing and evaluation of security controls within the Risk Management Framework (RMF)
Lead or participate in security control assessment activities by leveraging deep expertise in network protocols, operating systems, system architectures, equipment, services, and applicable standards

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: Offering customizable leave plans
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: at zero cost to you
Profit Sharing Bonus: End of year cash gets added to your bottom-line
Referral Bonus Program: Our bonuses range from $7,000-$20,000, if your referral joins the team

Fulltime

New

Penetration Tester

Join us as a Penetration Tester in Barclays, responsible for supporting the succ...

Location

India , Pune

Salary:

Not provided

Barclays

Expiration Date

Until further notice

Requirements

Hands-on delivery experience in penetration testing or related fields
Proficient in Penetration testing in at least 3 of following technical domains: Web based Applications, Network/Infrastructure, APIs, Mobile Apps, Thick clients, MCPs/AI Agents/LLMs, Cloud environments
Understanding of the security mechanisms associated with Applications, Operating Systems, Networks, Databases, Virtualisation, Cloud technologies, AI
Familiarity with cloud-native environments, container security, and infrastructure-as-code
Excellent communication and collaboration skills

Job Responsibility

Development and execution of assessments, audits, and threat models to identify vulnerabilities within the banks systems, applications and servers using penetration tools and techniques, and communicate key findings and recommendations to stakeholders
Collaboration with stakeholders and IT teams to identify emerging cyber-attack techniques, tools and technologies and to support the development of penetration testing methodologies
Development and maintenance of comprehensive documents and reports for senior stakeholders on penetration test findings, and remediation guidance
Collaboration with stakeholders to understand their security requirements and controls in business processes, application/services, to enhance overall security posture and assurance
Identification of emerging vulnerabilities, exploit codes and cyber-attacks to develop testing methodologies and assurance activities

What we offer

Competitive holiday allowance
Life assurance
Private medical care
Pension contribution

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 08, 2026

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Additional Information:

Job Posted:January 08, 2026

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