Senior Information Security Engineer

Job Title
Senior Information Security Engineer
Summary
TRD Professional Services is looking for a Senior Information Security Engineer (development-focused white hat) to identify and reduce risk across our applications and support the secure development of new customer projects. The role works closely with development and QA teams to embed security into the full software lifecycle, covering threat modelling, secure coding, vulnerability management, application hardening and PCI compliance.
This position sits at the intersection of security, development and QA, making sure security is built in from the start rather than added later. As a senior member of the team, you will be the key technical security contact for internal stakeholders, and a go-to person for less experienced colleagues.
Key Responsibilities
Review new application designs with architecture and development teams to identify security risks early and flag potential blockers before implementation begins
Lead threat modelling sessions with dev, QA and business teams to identify risks early in solution design
Review code and binary scan results, working with developers to fix vulnerabilities during development
Assess and manage existing vulnerabilities using CVSS and according to Amadeus processes, define remediation actions and follow up on mitigation plans
Drive operational security and hardening of applications and their supporting systems, ensuring security requirements are defined and maintained through to operations
Analyze, classify and prioritize application security incidents, and support their response and remediation with the development and platform teams
Support PCI-DSS compliance by collecting audit evidence with dev, QA and platform teams
Work with QA to ensure adequate security test coverage across functional and non-functional testing
Work across the organization to integrate security logging and monitoring into applications
Serve as the key technical interface on application security for internal stakeholders
Provide technical leadership and mentor team members on secure development practices
Take part in evaluating new security tools and technologies
About the Ideal Candidate:
Relevant experience in software development (.NET), application security, or infrastructure security (AWS/Azure);
Strong knowledge of secure development practices, threat modelling, vulnerability management and system/application hardening;
Ability to work independently, influence technical decisions and act as a reference for less experienced colleagues;
Excellent communication, collaboration, and problem-solving skills;
Experience with Amadeus LSS and Amadeus Robotics is a plus.
Our offer
🎯 A critical mission and purpose – At Amadeus, you'll power the future of travel with a critical mission and extraordinary purpose.
🌎 A truly global DNA – Everything at Amadeus is global, from our people to our business, which translates into our footprint, processes, and culture.
🎓 Great opportunities to learn – Learning happens all the time and in many ways at Amadeus, from on-the-job training to formal activities, and daily interactions.
🤗 A caring environment – Amadeus fosters a caring environment that supports both professional growth and personal well-being.
🌟 A flexible working model – Embrace our flexible working model, enabling you to excel wherever and however you work best.
🌈 A diverse and inclusive community – We are committed to enabling each employee to reach their full potential by fostering a culture of belonging and fair treatment.
📈 A reliable company – Trust and reliability are fundamental to shaping our relationships with customers, partners, and employees.
Application Process
The application process is easy and fast. Create your candidate profile manually or upload your CV/Resumé. Are you the one we’re looking for? Apply now!
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Diversity & Inclusion
Amadeus aspires to be a leader in Diversity and Inclusion in the tech industry, enabling every employee to reach their full potential by fostering a culture of belonging and fair treatment, attracting the best talent from all backgrounds, and as a role model for an inclusive employee experience.
Amadeus is an equal opportunity employer and committed to an accessible recruitment process. All qualified applicants will receive consideration for employment without regard to gender, race, ethnicity, sexual orientation, age, beliefs, disability or any other characteristics protected by law.
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Skills
.NET, AWS, Azure, Excel