Senior Application Security Engineer

2 weeks ago

The Municipal District of Carlow, Ireland Unum Ireland Full time
Our Story

Unum Technology Centre in Carlow serves as a strategic software development and IT services centre supporting Unum, a leading provider of income protection in the US. Our team of IT professionals build solutions and critical business applications to digitally transform the way we do business.

We're looking for a Senior Application Security Engineer to lead the integration of secure development practices across our SDLC in both cloud and on-prem environments. This role combines hands-on technical expertise with strategic influence, focusing on secure architecture, CI/CD automation, and developer enablement. You'll collaborate with cross-functional teams to drive threat modeling, build secure-by-default tooling, and mentor engineers across Ireland and the US—helping to elevate our overall security maturity and culture.

Key Responsibilities

Secure Software Development & DevSecOps Integration
  • Architect and integrate security into CI/CD pipelines using modern automation and guardrails.
  • Develop secure frameworks, SDKs, and CI integrations to enable frictionless adoption of security controls.
  • Maintain secure coding standards and guidance tailored to our technology stack.
  • Collaborate with DevOps and platform teams to enhance container and infrastructure security (Docker, Kubernetes, IaC).

Threat Modeling, Reviews & Remediation
  • Lead threat modeling workshops across product and platform teams.
  • Identify and assess vulnerabilities using SAST, DAST, SCA, manual code reviews, and penetration testing.
  • Promote reusable remediation patterns for code and infrastructure vulnerabilities.
  • Leverage threat intelligence to prioritize mitigations based on business risk.

Engineering & Automation
  • Build and maintain automation tools for vulnerability triage, mitigation, and reporting.
  • Strengthen API security through robust authentication protocols (OAuth 2.0, OpenID Connect, SAML).
  • Integrate with API gateways (e.g., Layer7, MuleSoft) to enforce secure communication and tokenization.
  • Support secure deployment of microservices and distributed systems using best-in-class tooling.

Security Culture & Enablement
  • Mentor engineers and analysts, fostering secure development capabilities across teams.
  • Lead internal workshops, onboarding sessions, and lunch-and-learns to promote security awareness.
  • Collaborate with Security Champions to build advocacy and threat modeling expertise.
  • Create internal documentation, playbooks, and training materials aligned with real-world threats.

Cross-Functional Leadership & Collaboration
  • Act as a bridge between Security, Engineering, and Product teams to align on secure architecture and SDLC practices.
  • Participate in incident response, forensic analysis, and post-incident remediation.
  • Support compliance initiatives (SOC 2, ISO 27001, HIPAA, PCI DSS, GDPR) through technical guidance and documentation.
  • Define and track KPIs to measure and improve security maturity across the organization.

Required Qualifications
  • 5+ years in application security, software engineering, or a related technical security role.
  • Proficient in at least one modern programming language (e.g., Java, C#, Python, JavaScript).
  • Experience with security tools: SAST, DAST, SCA, IaC scanners, RASP.
  • Strong knowledge of cloud infrastructure (AWS preferred), containers (Docker, Kubernetes), and CI/CD security.
  • Familiarity with OWASP Top 10, ASVS, CVSS, MITRE ATT&CK, STRIDE, and software supply chain security.

Technical Skills
  • Deep understanding of API security protocols and secure service-to-service communication.
  • Experience with secure artifact/package management and container registries.
  • Ability to script or build internal tools to scale security practices.
  • Hands-on experience with DevSecOps tools (GitHub Actions, Jenkins, GitLab CI, Terraform, etc.).

Compliance & Governance
  • Working knowledge of privacy and security regulations (GDPR, CCPA, HIPAA, PCI, SOC 2, ISO 27001).
  • Experience supporting audits, risk assessments, and policy development.

Preferred Qualifications
  • Professional certifications (e.g., OSCP, CSSLP, CISSP, Security+).
  • Contributions to open-source security projects or community involvement.
  • Experience with policy-as-code tools (e.g., Open Policy Agent).
  • Familiarity with secure runtimes (e.g., Firecracker), sidecars, or service meshes (e.g., Istio).

Key Attributes
  • Strategic thinker with a hands-on, problem-solving mindset.
  • Strong communicator, able to engage both technical and non-technical stakeholders.
  • Collaborative leader with a growth mindset and a passion for mentoring.
  • Comfortable navigating fast-paced, cross-functional environments.

What We Offer

Our size and successful history in Carlow means we can offer you exceptional development and progression, supported by continual learning programs, IT Certifications & third level tuition reimbursement. We offer work-life-balance with flexible working arrangements (including hybrid) and initiatives in support of your well-being. Our attractive range of benefits and reward initiatives includes competitive compensation, 25 days annual leave, paid health insurance, pension scheme, annual performance-based bonus, paid maternity/paternity/adoptive leave, reward programs, and an opportunity to engage with charity and community activities.

Company

Unum
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