AppSec Lead

Halian Technology; Greater London; On-site; GBP 80,000 - 110,000; Full time

Job summary

A leading fintech company is seeking a Lead AppSec Engineer to embed security into every stage of the software development lifecycle. You will provide security advisory to engineering teams, promote secure development practices, lead vulnerability remediation, and integrate security tools into workflows. This role is vital for driving secure, scalable solutions across the platform.

Responsibilities

• Serve as the go-to expert for application security across engineering teams.
• Promote and implement secure development practices across CI / CD pipelines.
• Lead vulnerability remediation efforts and prioritize risks.
• Integrate security tools into developer workflows.

Job description

A leading fintech company is seeking a Lead AppSec Engineer to join their established team. Youll be instrumental in embedding security into every stage of the software development lifecycleguiding engineers, shaping best practices, and driving secure, scalable solutions across our platform.

Key Responsibilities

• Security Advisory : Serve as the go-to expert for application security across engineering teamsproviding hands-on guidance, resolving concerns, and fostering a security-first mindset.
• DevSecOps Enablement : Promote and implement secure development practices across CI / CD pipelines, secrets and key management, dependency management, and secure design.
• Vulnerability Management : Lead vulnerability remediation effortstriaging findings, prioritizing risks, and partnering with teams to deliver effective, pragmatic fixes.
• Tooling & Automation : Integrate security tools (e.g., SAST, DAST, SCA, secrets scanning) into developer workflows, ensuring automation is both scalable and developer-friendly.