Senior Security Engineer

Zinc

Software Engineering

London, UK

GBP 80k-85k / year + Equity

Posted on May 21, 2026

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We're hiring a Security Engineer to run our org-wide technical security posture as Zinc scales. We're an AI-native company. We use Claude, Cursor, Granola, and n8n across the business and we need someone who can build the security frameworks that let us move fast without taking on unacceptable risk.

This is NOT a GRC or compliance role. We have ISO 27001. What we need is someone who builds security controls and capabilities, helping to establish things like our AI tool governance process, and embeds secure-by-design thinking into how we build and operate. If you want to write policies and sit in a compliance function, this isn't the right fit. If you want to shape how a genuinely AI-native business does security, keep reading.

Application Deadline: June 26, 2026
Department: Tech - Engineering
Employment Type: Full Time
Location: Zinc - London
Workplace type: Hybrid
Compensation: £80,000 - £85,000 / year

Key Responsibilities 🗝️

Own and continuously improve our org-wide security posture
Build our AI tool adoption security review and approval process
Lead secure-by-design engineering practices across Tech, Ops, and Customer teams
Maintain and develop our cloud security posture (AWS)
Manage incidents, tooling, integrations, projects, vulnerability & threat hunting
Conduct third-party tool risk assessments
Manage the transition from our outgoing contractor CISO
Influence security culture across the business without direct line authority

Skills, Knowledge and Expertise 🚀

Essential:

Security engineering background- you identify and build controls, not just document them.
Cloud security experience (AWS)
Familiarity with security/architecture frameworks
Secure-by-design engineering principles
3+ years in a security engineering role
Ability to influence without authority and communicate security risk in plain language

Desirable:

Experience securing AI tools and LLM-based systems
Vulnerability or Threat Hunting inside SaaS environments
ISO 27001 working knowledge (we're already certified)
SaaS company experience

What we offer 🍉

Zinc offers a chance to work on a product that brings a fresh perspective on data ownership in hiring

24 days holiday + Bank Holidays + your birthday off 🎉
£1200 annual benefits allowance (ThanksBen, from month 2)
Early finish Fridays (16:00)
Yearly company retreat abroad ✈️ (This year it's Turin)
30 days to Work from anywhere 🌍
Enhanced Maternity, Paternity, and Adoption Leave (2 months full pay, then statutory)
Statutory pension with NEST (3% employer, 5% employee)
Zinc shares, issued through the EMI Scheme
Unlimited access to MoreHappi coaching
Company socials, quarterly team socials Free Monday lunches
Nursery workplace benefit scheme (Yellownest)
Option to lease an electric car through Electric Car Scheme
Celebrated Zinc anniversaries 🥳

About Zinc

Who we are ⚡

Zinc builds automated reference and background checking tools designed to improve candidate experience and set new industry standards. Founded in 2017 by a team with extensive HRTech experience, Zinc is an early-stage startup rapidly growing as it redefines efficiency, transparency, and fairness in background checks.

📚Read more about our story here: https://zincwork.com/mission

We're a culture first company, by this we don't just mean an active calendar of both company and team organised events 🍔🍻🎯 (which we do have 🤩),Zinc's culture is defined by a respectful and autonomous approach to all employees, fostering support for new ideas, promoting a flexible work environment, and operating within a flat structure. While socials, lunches, and events enhance the experience, the core of Zinc's culture drives employees to embrace innovation, share successes, and feel motivated about the company's future.

🪴We recently redefined our company values:

🧩The pieces that make Zinc: Pragmatic, Integrity, Empathy, Collaborate, Empowered, Speed.

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