Senior Security Engineer: Developer Enablement & Threat Modeling

Mastercard; Tallaght; On-site; EUR 120,000 - 180,000; Full time

Job summary

Mastercard in Ireland is seeking a Principal Security Engineer to act as a trusted advisor to developers, embedding threat modeling and secure software design into the lifecycle. You will build scalable guidance, coach teams, and help govern security across the development process, balancing pragmatic security with speed to market.

You will lead developer enablement initiatives, shape learning programs, and collaborate with architects to raise security standards at scale while maintaining an

Qualifications

• Senior security practitioner with hands-on experience in threat modeling and secure software design.
• Comfortable operating at scale and collaborating with developers and architects.
• Strong coaching and communication skills with a focus on practical security.

Responsibilities

• Serve as a trusted advisor to developers, providing hands-on guidance on threat modeling.
• Embed security into the development lifecycle and govern security practices.
• Design and deliver learning programs to help engineers apply threat modeling.
• Partner with development teams to ensure security enhances delivery.

Skills

Threat modeling

Secure software design

Developer enablement

Job description

Mastercard in Ireland is seeking a Principal Security Engineer to act as a trusted advisor to developers, embedding threat modeling and secure software design into the lifecycle. You will build scalable guidance, coach teams, and help govern security across the development process, balancing pragmatic security with speed to market.

You will lead developer enablement initiatives, shape learning programs, and collaborate with architects to raise security standards at scale while maintaining an