Security Engineer

Dentsu Aegis Network; Greater London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading global technology firm is seeking a Security Engineer to develop and support security tooling for enterprise and development environments. The role requires strong experience with security tools and cloud platforms, along with DevSecOps practices. Responsibilities include implementing security platforms, supporting CI/CD processes, and collaborating with various teams to ensure a resilient infrastructure. This position offers a competitive salary and flexible working arrangements from London or Manchester.

Benefits

Competitive salary

Flexible working arrangements

Tailored benefits package

Qualifications

• Strong understanding of security principles across environments.
• Hands on experience with enterprise security tools required.
• Experience in DevSecOps and CI/CD pipeline security critical.

Responsibilities

• Implement and maintain enterprise security platforms.
• Support deployment of enterprise browser solutions.
• Drive efficiencies via automation and integrations.
• Support security controls throughout CI/CD pipeline.
• Collaborate with SOC and DevOps teams for security validation.

Skills

Strong understanding of security principles

Hands on experience with enterprise security tools

Strong experience with cloud platforms

Experience in DevSecOps

Familiarity with security tools in DevSecOps

Solid understanding of network security

Strong scripting skills

Excellent technical, analytical and problem-solving skills

Strong communication skills

Good presentation skills

Education

Relevant certifications (e.g. CKS, DevSecOps Practitioner)

Tools

Okta

Island Browser

Wiz

Sentinel

Defender

dependabot

detect-secrets

semgrep

trivy

Falco

Nuclei

SonarQube

Job description

This is a role with focus on security engineering to develop and support security tooling at a global level for both enterprise and development environments.

Job Description:

Introduction

Dentsu is an integrated growth and transformation partner to the world’s leading organizations. Founded in 1901 in Tokyo, Japan, and now present in over 145 countries and regions, it has a proven track record of nurturing and developing innovations, combining the talents of its global network of leadership brands to develop impactful and integrated growth solutions for clients. Dentsu delivers end-to-end experience transformation (EX) by integrating its services across Media, CXM and Creative, while its business transformation (BX) mindset pushes the boundaries of transformation and sustainable growth for brands, people and society.

We’re hiring a Security Engineer to work on a very flexible hybrid basis from our Manchester or London office.

Role Summary

A successful candidate will join dentsu’s Cyber Security team and will focus on helping secure environments across our global business. In this role, you will be responsible for helping define security measures and maintain security platforms across a variety of enterprise and development environments.

You will work closely with security platforms, SOC, security architects and developer teams to integrate security tooling and platforms, ensuring a secure and resilient infrastructure.

An ideal candidate would have a proven track record in both enterprise security tooling and DevSecOps processes, including multi-cloud security, code & secret scanning, container security etc. This role is suited to someone who would enjoy helping develop new internal capabilities and embrace the challenge of implementing and supporting these in a variety of different environments and technologies across the global business.

Key Responsibilities

• Implement and maintain enterprise security platforms, as well as custom environment-specific tooling.
• Support the deployment and maintenance of enterprise browser solutions and enterprise SSO security tooling.
• Drive efficiencies in processes and reporting metrics via automation and integrations.
• Support security controls throughout the CI/CD pipeline, including containerized environment, secret scanning, SCA and automated static and dynamic application security testing (SAST).
• Leverage cloud-native security solutions to support and automate manual security monitoring, threat detection, and incident response.
• Collaborate with SOC, vulnerability management, security architects and DevOps teams to validate findings, enhance cloud security posture and enforce compliance.
• Document, identify and train teams to ensure seamless handover of operational responsibilities post implementation, whilst providing L2/L3 support across multiple environments/teams when required.

Qualifications & Skills

• Strong understanding of security principles and engineering practices across enterprise, development and cloud environments.
• Hands on experience with enterprise security tools (e.g. Okta, Island Browser, Wiz, Sentinel, Defender, etc.)
• Strong experience with cloud platforms (Azure, AWS, GCP) and their security offerings.
• Experience in DevSecOps, cloud security, and CI/CD pipeline security
• Familiarity with security tools commonly used in DevSecOps workflows, (e.g. dependabot, detect-secrets, semgrep, trivy, Falco, Nuclei, SonarQube etc.)
• Solid understanding of network security, identity and access management (IAM), and cloud security posture management (CSPM).
• Strong scripting skills (Python, Bash, Terraform etc.) for automating security tasks and building custom security and reporting solutions.
• Must possess excellent technical, analytical and problem-solving skills, with a proactive approach to resolving issues and bridging personal knowledge gaps
• Strong communication skills and the ability to work both independently, and collaboratively with cross-functional teams.
• Good presentation skills both verbal and written on both technical and non-technical information
• Relevant certifications (e.g. Kubernetes Security Specialist (CKS), DevSecOps Practitioner, Azure Security Engineer, AWS Certified Security Specialty, GCP Professional Cloud Security Engineer etc.)

What we offer

This is a permanent role to work remotely with occasional travel to one of our offices in Manchester or London, NW1.

As well as a competitive salary, you’ll enjoy a benefits package that you can tailor to your needs.

Inclusion and Diversity

At dentsu, we embrace diversity and inclusion, valuing the unique perspectives and contributions of every individual. We believe that diversity fuels creativity and innovation, benefiting our employees, partners, and communities.

We welcome applications from all individuals, regardless of race, ethnicity, nationality, religion, gender, gender identity, sexual orientation, age, disability, marital status, or any other protected characteristic. Beyond recruitment, we stride to create an environment where everyone feels respected, supported, and empowered to bring their authentic selves to work.

We recognize the importance of work‑life balance and are open to discussing flexible working arrangements for all roles. If you need reasonable adjustments due to a disability or medical condition during our recruitment process, please contact us at [e-mail], quoting the reference number of the role that you are applying for. Your needs will be handled with respect and confidentiality to ensure an inclusive and accessible experience.

Location:

London

Brand:

Global Technology

Time Type:

Full time

Contract Type:

Permanent