Senior Security Engineer

Company | SaaS, Product, B2B2C

Size | 600 people globally, 60 in London

Role | Security Engineer

Level | Senior

Areas | Security, Platform, GenAI, R&D

Skills | AWS / GCP, Python / Node.js / Go, K8s, Terraform

Based | Zone 1, London

Hybrid | 2-3 days a week in-office

Offer | £100-120k + bonus + RSUs + 4.5 day work week

Hi

Workonomics are partnering with a company you likely haven't heard of by name, but have almost certainly interacted with before.

Their invisible technology helps tackle online fraud. Every time you use your debit or credit card online, their fully-automated, real-time platform makes your end-to-end purchasing journey safer.

Their digital commerce infrastructure sits behind the scenes to empower retailers with increased approvals, smarter decisions, and smoother checkouts. This means more sales, and happier customers.

Their London team is now hiring a Senior Security Engineer to help secure their high-scale, real-time decision platform that processes petabytes of highly sensitive data.

This scale and sensitivity is rare - the company ultimately handles more personal data than Facebook, and faces sophisticated threats in a 24/7, globally-distributed production system.

Your work will focus on building security into the foundations. If you want a role where the stakes, autonomy, and engineering depth are genuinely meaningful, this is it.

It'll be great if you're a hands-on Security Engineer with experience / knowledge of:

• production systems in public cloud environments (AWS / GCP / Azure / Kubernetes)
• programming and infrastructure-as-code (Python/ Node.js / Go / Terraform / CloudFormation etc)
• fundamental security understanding across every layer of the stack
• bonus points for any exposure to security in the AI model lifecycle, LLMs and agentic AI

If this sounds like you, please hit apply for more specifics about the company and role.