Application Security Engineer (Software) - Financial Services

Source Group International · Greater London, South East

Application Security Engineer (Software) - Financial Services at Source Group International, based in Greater London, South East. This is a contract role with hybrid working.

Salary
Competitive
Location
Greater London, South East · Hybrid
Contract
Contract
Posted
7 hours ago
Closes
22 Nov 2026
Sector
Software Developer

Reference BH-58029-1

About the role

Application Security Engineer (Software) - Financial Services
Contract - Inside I35
London - Hybrid (3 Days in Office)

Job Description
Oour clients a global Tier 1 investment bank are looking for an experienced Application Security Engineer who has prior experinece in Software Engineering and is familiar with the Software Development Lifecycle practices.  

What you’ll do
In this position, you are a passionate and talented application security engineer with very deep understanding of OWASP, CWE 25, Data Protection, Access management, software vulnerabilities, best practices design and threat modelling skills, who can work in a dynamic environment. You must be dedicated to able to work with developers in producing secure code in short time frames and be willing to go beyond the standard routine.
Your primary responsibilities includes:
  • Work as part of a team of software and security engineers to design/maintain and build best-in-class product security tools and services.
  • Technical point of contact for product teams as it relates to automation, CI/CD, and Product Application Security Operations
  • Using approved AI models and cyber harnesses to assess application code for business logic weaknesses, misconfiguration and vulnerabilities.
  • Build tools and automation scripts that enable developers to easily consume security services delivered by Security Engineering and Automation team
  • Responsible for security product QA and Testing
  • Build strong relationships with product development teams
  • Run software composition analysis (SCA) tools
  • To understand and explain penetration testing findings to the software engineering teams helping them to triage the findings and explaining how to mitigate the risks
  • To articulate business risk when assessing software vulnerabilities
  • Continuously improve the operations of SAST, DAST and IaC security tools
  • Continuously improve the operations of Web Application Firewalls (WAF) or IDS
  • Continuously improve the coverage of security tooling in Cloud environments e.g. Microsoft Azure & Amazon AWS

The knowledge, experience and qualifications you need
  • Application Development background
  • Experience in Application or Product Security
  • Prior experience in using AI models and cyber harnesses to support security evaluation of application and software code.
  • GitHub, Copilot, Codex, OWASP Top 10 for Agentic AI, AI skills development and security triage.
  • Ability to code in at least one programming language e.g.  Python/JavaScript/CSharp/Powershell
  • Prior experience working in a large organisation or Financial Services is an advantage as well as in Software Engineering
  • Excellent analytical skills with attention to details
  • CISSP/CSSLP/CEH/OSCP or similar certification
  • Team-player interpersonal skills, with the ability to communicate and collaborate effectively with different people in a variety of roles
  • Passionate about developing a career in Information Security
  • Computer Science / Cyber Security Degree
  • Excellent command of the English language, both written and spoken
What you’ll be like
  • Passionate about mastering and innovating best practice in business analysis
  • Inspiring and collaborative leader, model of agile leadership approach
  • Friendly, approachable, enjoys working with people from a variety of backgrounds
  • Capable of remaining positive when under pressure
  • Continuous improvement mind-set, challenges the status quo and seeks self improvement
  • Problem solver, comfortable taking the initiative in challenging and ambiguous circumstances



By applying for this role, you consent to SGI contacting you by telephone regarding recruitment services, market updates, and relevant business opportunities

We believe in equal opportunity for all and actively encourage applications from diverse backgrounds, experiences, and perspectives.
Source Group International Ltd is acting as an Employment Business in relation to this vacancy 

Reference: BH-58029-1 · Posted 7 hours ago · Closes 22 Nov 2026 · Listed via Source Group International

Know someone who'd be great for this? Get a shareable card

Apply for this job

This role is listed via Source Group International. Applications are handled on the employer's site.

Apply on employer site

Opens the employer's website in a new tab.

Safe applying: a genuine employer will never ask you to pay for a DBS check, training or equipment, or move you onto WhatsApp before you are hired. If this listing does, report it and do not pay anything.

Report this job
Salary Competitive
Apply now