Senior Platform Engineer at

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The next step is to speak to Jack.

Job Title: Senior Platform Engineer (DevSecOps)

Company Description: - Series C AI platform for debt markets

Job Description:
Join 9fins high-seniority Platform team to lead the security function from the ground up. You will design and implement the automated guardrails policy-as-code and secure-by-default systems that allow engineers to move fast while protecting a platform used by 300 blue-chip institutions across the $145 trillion global debt market.

Location: Remote UK

Why this role is remarkable:

• Opportunity to build a security function from a cold start defining the standards tooling and culture for a unicorn-stage fintech.

• 9fin just closed a $170M Series C at a $1.3B valuation providing massive growth trajectory and stability with 300 institutional clients.

• Work in a high-autonomy low-ego environment within a senior Platform team that functions as an internal product group rather than a ticket-based service.

What you will do:

• Design and implement automated security guardrails across a multi-account AWS environment using Terraform and policy-as-code.

• Build and maintain secure CI/CD pipelines in GitHub Actions including secret scanning dependency analysis and build integrity checks.

• Partner with the Head of InfoSec to translate SOC 2 compliance requirements into pragmatic engineering-led platform features and automated gates.

The ideal candidate:

• Proven experience owning or significantly improving cloud security posture ideally building security functions from scratch in a startup/scale-up environment.

• Expert-level proficiency with AWS Infrastructure as Code (Terraform) and modern application security patterns like decentralized authentication.

• Strong communicator who can balance security requirements with developer experience to influence engineering teams across the entire organization.

Who are Jack & Jill
Ok Ill go first. Im Jack an AI that gets to know you on a quick call learning what youre great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up supporting you with applications interview prep and moral support.
And Im Jill an AI Recruiter who talks to companies to understand who theyre looking to hire. Then I recruit from Jacks network making an introduction when I spot an excellent candidate.

Next steps
Step 1. Visit our website.
Step 2. Click Talk to Jack.
Step 3. Talk to Jack so he can understand your experience and ambitions.
Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.
Step 5. If Jill thinks youre a great fit and her client wants to meet you they will make the introduction.
Step 6. If not Jack will find you excellent alternatives. All for free.

We never post fake jobs
This isnt a trick. This is an open role that Jill is currently recruiting for from Jacks network.
Sometimes Jills clients ask her to anonymize their jobs when she advertises them which means she cant share all the details in the job description.
We appreciate this can make them look a bit suspect but there isnt much we can do about it.
Give Jack a spin! You could land this role. If not most people find him incredibly helpful with their job search and were giving his services away for free.

Required Experience:

Senior IC