Application Security Engineer

Full Timemid

LondonPosted 12 weeks ago

Role Overview

ION is hiring a mid-level Application Security Engineer. This is a full-time role in London. Part of ION's Lifecycle hiring. Full responsibilities, required qualifications, and the apply link are listed in the description below.

Salary Context

Salary is not disclosed in this posting. Market median for Mid-level Lifecycle roles is $100k-$125k (based on 123 comparable listings). Many employers share specifics during the interview process or after an initial screen.

Resume Keywords to Include

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CI/CDAPISupply ChainMarketsInformationSecurityIONAs

Job Description

The Role:

This is an amazing opportunity to work with Markets Information Security Team at ION. As a Product Security Engineer, you would be the key enabler of secure and compliant products. This role reports to the Product Security Lead and partners closely with engineering and product teams to increase the overall product security posture. You will own and scale product/application security by embedding security into the Secure SDLC, automating controls in CI/CD, and driving measurable risk reduction. The role is hands-on: you will perform security-focused code review and targeted testing, strengthen API security, implement supply chain security (SCA/SBOM) practices, and run an efficient vulnerability lifecycle with clear SLAs and metrics.

About ION

ION

iongroup.com

LifecycleOn-site

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Frequently Asked Questions

How do I apply for the Application Security Engineer position at ION?

Use the Apply button above to submit your application directly to ION. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.

Where is the Application Security Engineer position at ION located?

This position is based in London. ION has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.

What does a Application Security Engineer at ION earn?

ION has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.

When was the Application Security Engineer role at ION posted?

This role was posted on April 1, 2026 (87 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.