Staff Security Engineer, hyperexponential
£90-125k
+ Equity
More information about location
2-3 days a week in office
AI-powered platform transforming risk and pricing decisions
Posted today
AI-powered platform transforming risk and pricing decisions
201-500 employees
Posted today
£90-125k
+ Equity
More information about location
2-3 days a week in office
201-500 employees
Company mission
To build the decision infrastructure that helps the world take on more risk with confidence.
Role
Who you are
- Built or significantly contributed to security programmes from the ground up, establishing foundational security controls, compliance readiness, and incident response capabilities
- Designed and implemented security architecture for cloud-based distributed systems (AWS or equivalent), including multi-account strategies, identity and access management, network security, and data protection
- Driven technical security improvements by writing code, building tools, and implementing controls that scaled with company growth
- Integrated security into development workflows through DevSecOps practices including automated testing, secrets management, container security, and infrastructure-as-code security
- Led or supported compliance initiatives (SOC2, ISO27001, GDPR, or similar), mapping technical controls to compliance requirements and guiding teams through audit cycles
- Built trust with engineering teams by contributing technically and making security collaborative and frictionless
- Balanced security rigor with business goals, making risk-based trade-offs that enabled growth while protecting customers and the business
- Evaluated security implications of AI/ML systems, including understanding AI-specific risks and implementing controls to secure them
What the job involves
- The Security function's mission is to safeguard the integrity, confidentiality, and availability of our customers’ data and hx Renew’s systems
- By fostering a culture of vigilance, risk mitigation, and continuous improvement, we maintain the highest standards of security excellence
- Security at hx underpins every product and every customer interaction
- As we scale our multi-product platform globally, the team ensures that innovation and growth are matched with rigorous security practices
- We design controls, shape culture, and guide decisions that protect our business, our customers, and the wider industry
- As a Staff Security Engineer, you’ll play a pivotal role in building hx’s security function from the ground up
- You’ll drive technical direction, design systems that are secure by design, and collaborate across engineering and product teams to embed security early in every decision
- This role combines technical depth, influence, and cross-functional leadership to make security an enabler of growth and a differentiator for hx in the market
- Build hx's security programme from the ground up, setting direction for security architecture, compliance, and incident response as we scale globally
- Design and implement security controls across AWS cloud infrastructure, Kubernetes workloads, and our multi-product platform, ensuring systems are secure by design
- Integrate security into engineering workflows by embedding automated security testing, vulnerability management, and threat detection into CI/CD pipelines without slowing teams down
- Lead or contribute to compliance initiatives (SOC2, ISO27001) by implementing technical controls and working cross-functionally with legal, engineering, and business teams to enable enterprise sales
- Build security automation and tooling by writing code and scripts that scale security practices, detect vulnerabilities, and enforce policies efficiently
- Partner with Engineering Managers, Principal Engineers, and Product Managers to embed security thinking early in design and architecture decisions
- Act as a trusted voice in critical moments: responding to incidents, unblocking teams on security questions, and keeping high-stakes initiatives secure and on track
- Assess and secure AI-powered systems across hx's platform, implementing controls that enable safe adoption of AI while mitigating risks like prompt injection, data leakage, and model vulnerabilities
Application process
- Initial call with Talent team (45 minutes)
- Manager Interview (60 minutes)
- Technical Assessment (e.g., code review, system design) (120 minutes)
- Meet the VP of Engineering (60 minutes)
- Values Interview with Tech Leadership (60 minutes)
- Offer
Salary benchmarks
Our take
hyperexponential was created to provide modelling software to help people and businesses build, deploy and manage analytical models that work with small, sparse and fragmented datasets. Its goal is to make teams more agile, collaborate more deeply, and work more productively.
hyperexponential's pricing and data-driven decision-making software is built for the speciality and commercial insurance markets. The product has broad applications, but the company's initial focus is on speciality insurance, a sector the founders know well, having worked there for more than a decade.
The company's making a name for itself too, working with some of Europe's biggest insurers to transform how pricing decisions are made. And its newest launch, hx AI, blends powerful AI with its core platform to help insurers build smarter models, faster. It's a strong signal that hyperexponential is not just growing, but ready to lead the way.
Freddie
Company Specialist at Welcome to the Jungle
Insights
Company
Funding (2 rounds)
Jan 2024
$73m
SERIES B
Jun 2021
$18m
SERIES A
Total funding: $91m
Company benefits
- £5,000 for individual and group training and conference budget
- 25 days holiday plus 8 bank holiday days (33 in total)
- Company pension scheme via Penfold
- Mental health and therapy provision via Spectrum.life
- Individual wellbeing allowance via Juno
- Private healthcare insurance through AXA
- Top-spec equipment (laptop, screens, adjustable desks, etc)
- Regular remote & in-person hackathons, lunch & learns, socials and games nights
- Team breakfasts and lunches, snacks, drinks fridge, fun office @ The Ministry
Company values
- We are owners - We help move hyperexponential forward without being told
- We push boundaries - We keep going for ourselves and our customers when most would stop
- We grow - We learn deeply, by making things. We improve through data and insights
- We go deeper - We apply a thoughtful and customer centric mindset to all we do
- We do the right thing - We are usually nice, never disrespectful, and always kind
Company HQ
London, UK
Articles
Leadership
Amrit Santhirasenan
(Co-Founder & CEO)CompSci at the University of York, qualified Actuary and previous Head of Pricing and Analytics of Tokio Marine Kiln, one of the largest managing agents at Lloyd’s.
People progressing
They joined hyperexponential in 2020 when the company still had a fairly small Engineering team. They were given the opportunity to step in as a Team Lead and ended up being one of the first Team Leaders within ProdEng.
Charlotte joined hx in 2022 and progressed from Project Manager to Delivery Lead, now driving strategic programmes and helping scale how we deliver cross-functional work.
Diversity, Equity & Inclusion at hyperexponential
Rotem Ben-David (Head of People Operations & Performance)
- We are committed to diversity and equal opportunity. We believe that the more inclusive we are, the better our work and culture is. We are not yet where we want to be in terms of balance, but it is our mission to build a team that represents a variety of backgrounds and perspectives and we are working hard towards that goal.
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