Senior Application Security Engineer | £84K | Hybrid

Akkodis; City Of London; Hybrid; GBP 70,000 - 84,000; Full time

Job summary

A leading professional services firm is seeking a Senior Application Security Engineer to drive security culture in their IT team. This hybrid role involves defining security strategies, automating security testing, and acting as a Subject Matter Expert. Ideal candidates will have a strong software development background and experience in application security. Competitive salary up to £84,000 offered.

Benefits

Flexible work environment

Investment in personal development

Qualifications

• Strong background in software development and security.
• Proven experience embedding security into agile development environments.
• Hands-on with cloud platforms and CI/CD pipelines.
• Knowledge of application security tools and risk assessments.
• Familiarity with OWASP, NIST SSDF, ISO27001, and NCSC standards.

Responsibilities

• Lead the cultural shift towards secure software development.
• Define and implement the software security strategy.
• Collaborate with developers to embed security requirements.
• Support penetration testing and vulnerability management.
• Act as a software security SME advising on secure design.

Skills

Software development

Application security

Cloud platforms

CI/CD pipelines

Scripting languages (PowerShell, YAML, JSON)

Risk assessments

Threat modelling

Excellent communication

Tools

OWASP

NIST SSDF

ISO27001

NCSC

Job description

Overview

Senior Application Security Engineer | Permanent | UK (Hybrid - a few times per month) | £84k

We're working with a forward-thinking professional services firm on a key hire to embed security into every part of their digital product journey. They're looking for a Senior Application Security Engineer to drive secure-by-design principles across new and evolving applications and act as a Subject Matter Expert for software security across the business. This is a high-impact role in a collaborative, ambitious, and people-focused IT team. You'll play a hands-on role, shaping security culture, guiding engineering teams, and ensuring that security is integrated into every stage of the software development lifecycle.

Responsibilities

• Leading the cultural shift towards secure software development across product teams
• Defining and implementing the software security strategy in line with business goals
• Collaborating with developers to automate security testing and embed security requirements into the SDLC
• Supporting penetration testing, vulnerability management, and remediation efforts
• Acting as a software security SME, advising teams on secure design, risk, and compliance
• Maintaining security documentation, training materials, and processes
• Reporting on compliance and security posture to senior leadership

Qualifications

• Strong background in software development and security - comfortable with both code and risk
• Proven experience embedding security into agile development environments
• Hands-on with cloud platforms and CI/CD pipelines, plus scripting languages such as PowerShell, YAML, or JSON
• Knowledge of application security tools, threat modelling, and risk assessments
• Familiarity with standards/frameworks such as OWASP, NIST SSDF, ISO27001, NCSC
• Experience guiding engineering teams and influencing security culture
• Excellent communication skills, able to engage confidently with developers and senior leadership

Why join them?

You'll be part of a forward-thinking IT team that values your input and invests in your development. This is your chance to shape the security of innovative digital products, influence the business's secure software culture, and work in a flexible hybrid environment.

Location: London office (hybrid, a few times per month)

Salary: Up to £84,000

If you're a software security professional ready to lead, mentor, and make a real impact, send your CV for immediate consideration.

Modis International Ltd acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers in the UK. Modis Europe Ltd provide a variety of international solutions that connect clients to the best talent in the world. For all positions based in Switzerland, Modis Europe Ltd works with its licensed Swiss partner Accurity GmbH to ensure that candidate applications are handled in accordance with Swiss law.

Both Modis International Ltd and Modis Europe Ltd are Equal Opportunities Employers.

By applying for this role your details will be submitted to Modis International Ltd and/ or Modis Europe Ltd. Our Candidate Privacy Information Statement which explains how we will use your information is available on the Modis website