Application Penetration Tester ()
Application Penetration Tester ()
Posted on :
24-08-2025
Employer Active
1 Vacancy
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Monthly Salary
Not Disclosed
Salary Not Disclosed
Vacancy
1 Vacancy
Posted on :
24-08-2025
Job Description
If you need support in completing the application or if you require a different format of this document please get in touch with at with the subject line: Application Support Request.
Careers at TCS: It means more
Join a global tech leader right here in Donegal. TCS is a purpose-led transformation company built on belief. We do not just help businesses to transform through technology. We support them in making a meaningful difference to the people and communities they serve. With over 850 employees and a state-of-the-art global delivery centre were proud to offer world-class career opportunities without having to leave the Northwest. Recognised as Workplace of the Year by the Letterkenny Chamber we foster a culture of continuous learning innovation and respect. Our people are at the heart of everything we do collaborating across teams geographies and disciplines to drive real change for clients around the world. Be part of something global grounded in Donegal.
Location: Letterkenny (full time in office until after training then hybrid: 3 days a week)
The Role
Join the customers Attack Surface Management team as an experienced Application Penetration Tester. Our client a major U.S.-based financial services group is expanding its security capabilities and seeks a professional who can not only identify vulnerabilities but also guide development teams through effective remediation.
Your responsibilities:
Essential skills/knowledge/experience:
Rewards & Benefits
TCS is consistently voted a Top Employer in the UK and globally. Our competitive salary packages feature pension health care life assurance laptop and access to extensive training resources and discounts within the larger Tata network.
We offer health & wellness initiatives and sports events; we are the proud sponsor of the London Marathon and partner with our local communities in Ireland.
Diversity Inclusion and Wellbeing
Tata Consultancy Services UK&I is committed to meeting the accessibility needs of all individuals in accordance with the Ireland Employment Equality Acts 1998-2011 (as amended) and the Equal Status Acts 2000-2012 (as amended).
We welcome and embrace diversity in race nationality ethnicity disability neurodiversity gender identity age physical ability gender reassignment sexual orientation. We are a disability inclusive employer and encourage disabled people to apply for this role.
As a Disability Confident Employer we offer an interview to applicants with disabilities or long-term conditions who meet the minimum criteria for the role. Please email us at if you would like to opt in.
If you are an applicant who needs any adjustments to the application process or interview please contact us with the subject line: Adjustment Request or email to request an adjustment. We welcome requests prior to you completing the application and at any stage of the recruitment process.
Beware of Fraudulent offers
This is to notify you that TCS does not ask for any sort of payment or security deposit from candidates at any stage of the recruitment process. The firm never sends out job offers from free internet email services like Gmail Yahoo Mail and so on. TCS has not authorised any third-party company to collect money on their behalf. As a vigilant job seeker beware of fraudulent recruitment activity and protect your interests! You can write to to report any fraudulent activity.
Due to the high volume of applications we will be unable to contact each applicant individually on the status of their application. If you have not received a direct response within 30 days then it should be deemed unsuccessful on this occasion.
Join us and do more of what matters. Apply online now.
Careers at TCS: It means more
Join a global tech leader right here in Donegal. TCS is a purpose-led transformation company built on belief. We do not just help businesses to transform through technology. We support them in making a meaningful difference to the people and communities they serve. With over 850 employees and a state-of-the-art global delivery centre were proud to offer world-class career opportunities without having to leave the Northwest. Recognised as Workplace of the Year by the Letterkenny Chamber we foster a culture of continuous learning innovation and respect. Our people are at the heart of everything we do collaborating across teams geographies and disciplines to drive real change for clients around the world. Be part of something global grounded in Donegal.
Location: Letterkenny (full time in office until after training then hybrid: 3 days a week)
The Role
Join the customers Attack Surface Management team as an experienced Application Penetration Tester. Our client a major U.S.-based financial services group is expanding its security capabilities and seeks a professional who can not only identify vulnerabilities but also guide development teams through effective remediation.
Your responsibilities:
- Perform in-depth manual Application Penetration Testing of Web applications and APIs.
- Conduct scoping conversations with the client to thoroughly understand the application its functionality and specific scope requirements to ensure accurate and effective penetration testing.
- Prepare comprehensive reports detailing vulnerabilities risks and remediation recommendations and effectively present these findings to the client to ensure clear understanding and actionable outcomes.
- Retest identified vulnerabilities after remediation to verify the effectiveness of implemented fixes ensuring all issues are fully resolved and meet security standards.
- Build and maintain trust with the client by providing consistent communication expert guidance on remediation strategies and ongoing support throughout the entire penetration testing process.
- Actively share innovative ideas and collaborate with team members to enhance penetration testing methodologies improve processes and drive continuous improvement in security practices.
- Research latest and emerging security threats
Essential skills/knowledge/experience:
- Sound industry experience in Application Penetration Testing such as web & API.
- Strong understanding of the OWASP WSTG with the ability to effectively test web application vulnerabilities using its methodologies ensuring comprehensive identification and mitigation of security risks
- Proficient in using the CVSS (Common Vulnerability Scoring System) calculator to accurately assess and prioritize risks based on severity and potential impact.
- Demonstrated expertise in communicating clear actionable remediation advice to address identified issues effectively and support informed decision-making for the client.
- Familiar working with multiple technologies such as Burp Suite professional Jira & ServiceNow DAST Scanners.
- Ability todeliver several key pieces of work at pace whilst maintaining high standards
- Excellent communication and interpersonal skills with the ability to clearly articulate vulnerabilities risks and remediation strategies to diverse stakeholders including both technical and non-technical audiences
- Proven ability to write clear structured and evidence-based reports to effectively communicate findings and recommendations to the client.
- Experienced in managing and coordinating tasks across multiple programs.
- Have experience in manual Application Penetration Testing of IOS & Android applications.
- Completed industry certifications such as Burp Suite Certified Practitioner (BSCP) HTB Certified Penetration Testing Specialist (HTB CPTS) Offensive Security Certified Professional (OSCP)
- Development experience
- Experience working within the financial service industry
- Japanese language skills an advantage
Rewards & Benefits
TCS is consistently voted a Top Employer in the UK and globally. Our competitive salary packages feature pension health care life assurance laptop and access to extensive training resources and discounts within the larger Tata network.
We offer health & wellness initiatives and sports events; we are the proud sponsor of the London Marathon and partner with our local communities in Ireland.
Diversity Inclusion and Wellbeing
Tata Consultancy Services UK&I is committed to meeting the accessibility needs of all individuals in accordance with the Ireland Employment Equality Acts 1998-2011 (as amended) and the Equal Status Acts 2000-2012 (as amended).
We welcome and embrace diversity in race nationality ethnicity disability neurodiversity gender identity age physical ability gender reassignment sexual orientation. We are a disability inclusive employer and encourage disabled people to apply for this role.
As a Disability Confident Employer we offer an interview to applicants with disabilities or long-term conditions who meet the minimum criteria for the role. Please email us at if you would like to opt in.
If you are an applicant who needs any adjustments to the application process or interview please contact us with the subject line: Adjustment Request or email to request an adjustment. We welcome requests prior to you completing the application and at any stage of the recruitment process.
Beware of Fraudulent offers
This is to notify you that TCS does not ask for any sort of payment or security deposit from candidates at any stage of the recruitment process. The firm never sends out job offers from free internet email services like Gmail Yahoo Mail and so on. TCS has not authorised any third-party company to collect money on their behalf. As a vigilant job seeker beware of fraudulent recruitment activity and protect your interests! You can write to to report any fraudulent activity.
Due to the high volume of applications we will be unable to contact each applicant individually on the status of their application. If you have not received a direct response within 30 days then it should be deemed unsuccessful on this occasion.
Join us and do more of what matters. Apply online now.
Employment Type
Full-Time
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