Senior Application Security Engineer / DevSecOps Engineer

Additional Resources Ltd; Greater London; Hybrid; GBP 72,000 - 88,000; Full time

Benefits offered by this job

Remote/hybrid friendly

London office access

Excellent benefits package

Job summary

Additional Resources Ltd in London is seeking a Senior Application Security Engineer to embed security across the SDLC. You will work with engineering, architecture, and cloud teams to implement testing solutions, automate security, and strengthen CI/CD pipelines within Azure/Kubernetes environments.

The role focuses on secure design, testing, and guidance for API security. It offers a remote/hybrid setup in London with a salary of £80,000 and a comprehensive benefits package; visa sponsorship

Qualifications

• Hands-on background embedding security into SDLC.
• Experience with Azure security controls and cloud governance.
• Experience with KQL and API security practices.
• Experience securing Kubernetes and containerised environments.
• Knowledge of SAST/DAST/IAST/SCA and security automation.

Responsibilities

• Promote secure development with engineering and architecture teams.
• Implement and maintain application security testing solutions.
• Integrate security controls into CI/CD pipelines.
• Strengthen GitHub Actions and other CI/CD platforms.
• Provide guidance on secure API design and externally accessible systems.
• Develop security-as-code and policy-as-code.
• Support security of cloud-hosted data platforms.
• Automate security processes via IaC and scripting.
• Maintain technical and security documentation.
• Assist development teams with security tooling and best practices.
• Contribute to threat modelling and compliance activities.

Skills

AppSec

DevSecOps

Cloud Security

Threat Modelling

SAST/DAST/IAST

CI/CD

GitHub Actions

Terraform

Python

ISO 27001

Tools

Kubernetes AKS

Azure

Databricks

Snowflake

Job description

Employer:

Additional Resources Ltd

Location:

, London, , EC1N 2LL

Pay:

£80,000 to £80,000 per year,

Contract Type:

Permanent

Hours:

Full time

Disability Confident:

No

Closing Date:

20/11/2026

About this job

Do you have a background in Application Security, DevSecOps or Product Security, with hands-on experience embedding application security into the SDLC? If so, this could be an opportunity worth considering.

Join a well-established health research organisation and charity supporting large-scale medical research.

You will work closely with engineering, architecture and cloud teams to integrate security throughout the software development lifecycle.

Microsoft Azure and KQL experience are essential, alongside relevant experience in CI/CD, Kubernetes, API security, security-as-code and security automation.This is a hands-on application security rolefocused on secure design, application security testing and supporting development teams to build secure applications.

This is a full-time permanent role predominantly remote / hybrid in London offerings benefits and a salary of £80,000 which can benegotiable for right candidate.

Please only apply if you haveright to work in the UK as Visa sponsorship is not available.

You will be responsible for:

• Working with engineering and architecture teams to promote secure development.
• Implementing and maintaining application security testing solutions.
• Integrating security controls into CI/CD pipelines.
• Strengthening the security of GitHub Actions and similar CI/CD platforms.
• Providing guidance on secure API design and externally accessible systems.
• Developing security-as-code and policy-as-code.
• Supporting the security of cloud-hosted data platforms.
• Automating security processes through infrastructure-as-code and scripting.
• Maintaining technical and security documentation.
• Supporting development teams with security tooling and best practices.
• Contributing to threat modelling and compliance activities.

Applications are welcomed from candidates with the required experience from backgrounds including:

• Application Security, Security Engineer
• Product Security, DevOps Security Engineer, Application Security Consultant, Security Engineer
• DevSecOps, Secure Software Engineer, Application Security Specialist, Application Security Architect

What we are looking for:

• Hands-on experience embedding application security into the SDLC.
• Experience with Microsoft Azure security controls and cloud security governance.
• Experience with KQL.
• Experience securing APIs, internet-facing services, Kubernetes, preferably AKS, and containerised environments.
• Experience with SAST, DAST, IAST and SCA.
• Knowledge of security automation, security-/policy-as-code and secure engineering practices.
• Familiarity with GitHub and GitHub Actions.
• Experience with Terraform and Python.
• Understanding of cloud security governance.
• Experience with threat modelling in software engineering contexts.
• Knowledge of ISO 27001 and its relevance to secure engineering.
• Exposure to Agile working environments and DevSecOps practices
• Ideally experience securing data platforms such as Databricks, Dagster or Snowflake

Eligible to work in the UK.

What the role offers:

• £80,000 DOE, negotiable
• Predominantly remote / hybrid working
• London office
• Excellent benefits package This is an excellent opportunity for a Senior Application Security Engineer where you can make a meaningful impact on the safe and effective adoption of emerging technologies.