Senior Security Engineer

Working experience in product or application security: you've done security reviews or threat modelling and can spot the risks that matter

The ability to read and write code, not just review it. You're comfortable building small tools and automation rather than only filing findings

Sound judgement about risk. You can weigh a real threat against a theoretical one and explain your reasoning clearly

The ability to plan and deliver your own work independently once you understand the direction, while knowing when to pull in the senior engineer

Clear communication with engineers who aren't security specialists, since most of your impact lands through their work

Exposure to compliance frameworks like SOC2 or PCI, or genuine appetite to learn them

Background in payments, fintech, or another regulated, high-stakes domain

Interest in areas like supply chain security, detection engineering, or AI security

It's remote-first and high autonomy. You'll get direction, but nobody checks your progress daily. If you need close structure, this will be uncomfortable

You'll move between proactive project work and reactive BAU, and priorities will shift as audits and incidents land. Tolerating that change is part of the role.

An initial intro call with a Talent Partner

An interview with the Hiring Manager

Challenge Stage - Contextualised to the role

A final, values-alignment interview

We're building a culture where people can do their best work and be proud of the impact they have. You'll be working with people who are mission-driven, smart, and reflective, and who are genuinely invested in building exceptional products and delivering success for our merchants. We work remotely, and have done since day one. We believe that building a successful, profitable company goes beyond proximity. We invest in our relationships through great remote working practices and thoughtfully designed face-to-face time, including workations, our annual company retreat, and access to co-working spaces across most major cities. The work is challenging. Scaleups are a challenge, and building category-defining products is a challenge. But there's a meaningful difference between a challenge and a struggle. At Primer, the right challenge comes with the right support: strong onboarding, a collaborative environment, and a team that is genuinely invested in your success. It's never something you face alone.