Senior Security Engineer

Jobtailor; Greater London; On-site; GBP 75,000 - 110,000; Full time

Benefits offered by this job

Flexible hybrid/remote work

Private health coverage

Retirement savings plan

Employee referral bonus

Office meals & snacks

Cycle-to-work scheme

Job summary

Lendable is seeking a pragmatic Security Engineer to own configuration, integration, and automation of internal security tooling. You will build and maintain pipelines, guardrails, and data integrations across cloud and SaaS platforms to strengthen the security posture.

The role emphasizes hands-on scripting, AI-assisted coding, and strong collaboration with the InfoSec team and Platform Engineers to translate security requirements into scalable configurations.

Qualifications

• Proficient in Python to automate tasks and build tooling.
• Experience with Terraform for infrastructure management and API integrations.
• Ability to parse JSON logs and implement cloud security controls.
• Open to using AI coding tools to accelerate delivery.
• Security-minded engineer who treats security as an enabler, not a box-ticking exercise.
• Proven pragmatic, action-oriented approach with hands-on scripting and PRs.

Responsibilities

• Configure security tooling using code and automation to reduce manual toil.
• Integrate security controls across cloud providers and SaaS platforms.
• Develop data pipelines and evidence feeds for compliance tooling.
• Architect and deploy guardrails including CASB and DLP policies.
• Collaborate with Platform Engineers and stakeholders to explain controls.

Skills

Python automation

Terraform

APIs

Cloud IAM

JSON logs

AI coding tools

Tools

SIEM

Google Workspace

Job description

About Lendable

Lendable is on a mission to build the world's best technology to help people get credit and save money. We are a growing fintech company, profitable since 2017 and backed by top investors including Balderton Capital and Goldman Sachs.

About the Role

We are looking for a practical, execution-focused Security Engineer to manage the configuration, integration, and engineering lifecycle of our internal security tools. This role is highly versatile and focuses on solving security problems with code and automation. The engineer will act as the engineering engine room for the InfoSec team, collaborating closely with various security and IT leads to translate security requirements into working configurations, automated pipelines, and custom data integrations.

What You’ll Be Doing

• Configuration as Code: Drive security configurations across our stack utilising a Terraform and GitOps workflow.
• Tooling Optimisation: Get the most out of our InfoSec tooling through proactive setup, tuning and configuration, ensuring we maximise our defensive utility and continuously improve our security posture.
• Platform Integrations: Build and maintain high‑leverage integrations between cloud providers, SaaS platforms and our core security tooling – for example, engineering log pipelines into our SIEM or automating evidence feeds into our compliance platform.
• Automation Engineering: Architect and deploy agentic workflows and lean automation scripts to eliminate manual toil, driving productivity and scalability for the InfoSec team.
• Frictionless Control Implementation: Design and deploy practical guardrails, CASB and DLP policies across network boundaries and collaboration tools – for example, Google Workspace, safeguarding data and enabling safe tooling usage without creating engineering bottlenecks.

What We’re Looking For

• Practical Engineering Capabilities: Solid experience using Python (or similar) to automate tasks, Terraform to manage infrastructure, connect APIs and manage infra state, with judgement to use UI configurations when code isn’t viable.
• Cloud & Infrastructure Literacy: Proven experience configuring or hardening security controls within cloud (AWS/GCP) environments such as IAM and network/identity boundaries, and handling data formats like JSON to parse logs.
• AI‑First Execution: Enthusiastic about actively leveraging advanced AI coding tools (such as Claude Code, Codex) to increase engineering output, script generation and delivery speed.
• Pragmatic Security Mindset: A builder who views security as a business enabler, focusing on practical defensive posture rather than compliance checklists and identifying systemic risk based on context.
• Bias for Action: An execution‑focused operator who writes scripts, opens PRs or modifies controls to get tasks done when a security control drifts or a detection mechanism is needed.
• Communication & Collaboration: Ability to debate technical IAM architecture details with a Platform Engineer and explain to non‑technical stakeholders why a control change matters.

Interview Process

• TA Screening Call
• Hiring Manager Call
• Technical Interview
• Culture Interview
• Life at Lendable

Culture & Benefits

• Flexible working – hybrid or fully remote with regular in‑person social opportunities.
• Health coverage – private health cover and support for physical and mental wellbeing.
• Retirement & savings – long‑term financial wellbeing through retirement savings plans.
• Employee referral programme – earn a competitive bonus for successful referrals.
• Office meals & snacks – fully stocked kitchen and complimentary lunches on in‑office days at select locations.
• Sustainable commuting – cycle‑to‑work and electric vehicle salary sacrifice schemes available in select locations.