Security Engineer

MillTech

Security Engineer for FinTech company specializing in FX and cash management automation solutions. Manage cloud security, embed security into CI/CD, and contribute to development projects.

Posted 6/27/2026full-timeLondon • 🇬🇧 United KingdomMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

AWSAzureCloudDockerJavaJenkinsKubernetesPythonTypeScript

About the role

Key responsibilities & impact

Improve cloud security controls across AWS and Azure, including IAM policies, network segmentation, encryption standards, and logging.
Integrate security tooling (SAST, DAST, dependency scanning) into CI/CD pipelines to shift security left in the development lifecycle.
Triage, prioritise, and assisting remediation of CVEs — contributing code fixes directly to development projects when needed, not just raising tickets.
Collaborate with platform and backend engineers on infrastructure-as-code reviews, container security, and secrets management.
Support cloud hardening initiatives, including CIS benchmark compliance and ongoing posture monitoring.
Participate in security reviews of new features, architecture proposals, and third-party integrations.
Contribute to incident response processes, including root cause analysis and post-incident improvements.

Requirements

What you’ll need

3–5 years’ experience in a security engineering, DevSecOps, or cloud security role.
Solid working knowledge of AWS security services (GuardDuty, Security Hub, Config, IAM) and familiarity with Azure security controls.
Practical experience with CI/CD tooling (e.g. GitHub Actions, Jenkins, GitLab CI) and embedding security checks into pipelines.
Strong understanding of code management practices: branching strategies, pull request workflows, and dependency management.
Ability to read, understand, and contribute to application code (Python, Java, TypeScript, or similar) to remediate vulnerabilities.
Familiarity with container security (Docker, Kubernetes) and infrastructure-as-code.
Knowledge of common vulnerability frameworks (CVE, CVSS, OWASP Top 10) and secure coding principles.
Good communication skills — you can explain a risk to a developer and help them fix it, not just flag it.

Benefits

Comp & perks

A competitive salary with annual reviews;
25 days’ paid annual leave plus an additional day per year of service;
Excellent staff development and training opportunities;
Flexible working arrangements including remote working;
Medical insurance;
Life insurance, for UK based employees;
Dental insurance;
EV Scheme and Cycle to work scheme;
Enhanced maternity and paternity leave;
1 day off for charity work per quarter and many other benefits!

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Cloud SecurityAWS Security ServicesAzure Security ControlsCI/CD ToolingApplication Code ContributionContainer SecurityInfrastructure-as-CodeVulnerability FrameworksSecure Coding PrinciplesIncident Response

Soft Skills

Communication SkillsCollaborationProblem SolvingPrioritizationTriage