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App Sec Engineer (Application Security)

Manchester, Greater Manchester💼 Full-time💰 $75,000–$75,000🗓 2026-05-29 → 2026-08-07

Core

Application Security Engineer embedded in the development lifecycle to own AppSec across the engineering function, running threat models, reviewing code, and ensuring secure tooling for a scaling SaaS platform handling sensitive financial data.

Role type

Application Security Engineer

Builds

Secure SaaS platform handling sensitive financial data

Domain

Fintech, Application Security

Deliverable

production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work

Required skills

Application security in SaaS/Fintech, SAST/DAST/SCA tooling (Snyk, Checkmarx, Semgrep, Burp Suite), Threat modelling, OWASP Top 10 remediation, API security (REST, GraphQL), Secure SDLC/CI/CD integration, Auth concepts (OAuth, OIDC, JWT, SAML), Risk communication

Technologies

Snyk, Checkmarx, Semgrep, Burp Suite

Responsibilities

Run threat models with engineering and product teams, Review code for vulnerabilities, Embed security into CI/CD pipelines, Educate developers on secure practices, Communicate security risks to stakeholders

Seniority

Mid-Senior, hands-on IC

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