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Location: Hybrid 2 days per week, based in Warsaw Salary for Staff Engineer (IC4) : UoP (Contract of Employment) = 29,000 - 38,000 PLN per month gross B2B = 34,000 - 45,000 PLN per month net +VAT At hyperexponential, we’re building the AI-powered platform that enables the world’s most critical decisions in a $7 trillion industry, which risks to take, and how to price them. These are the decisions that shape real-world outcomes: whether rockets successfully launch into space, autonomous vehicles make it to market, or communities recover after major storms. Until now, insurers have been making billion-dollar decisions using outdated tools. Our platform brings together data, AI, and human expertise to give insurers the fastest path from submission to decision - helping them move faster, act smarter, and take on more risk with confidence. What began as a single product in one market has rapidly evolved into a multi-product, multi-territory platform powering every stage of pricing and underwriting. AI is at the core of what we do - from building the world’s first domain-specific AI peer programmer for insurance (think GitHub Copilot with a PhD in actuarial science) to shaping agentic workflows that reinvent how this industry operates. What makes hx different is the people who build it. it’s defined by the challenges you take on and the discipline you bring. Surrounded by peers who stretch you, you’ll do the best, hardest work of your life in a company engineered to endure. If that sounds like you, join us in building what comes next. About the Security function The Security functions 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 hxs 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 hxs platform, implementing controls that enable safe adoption of AI while mitigating risks like prompt injection, data leakage, and model vulnerabilities. What you’ll need to have done 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. You prefer narrow ownership of security tools over building cross-functional culture and influence. You view security as primarily compliance-driven rather than enabling business outcomes and customer trust. You lead through authority and mandates rather than influence, collaboration, and making engineers’ lives easier. You’re more comfortable writing policies than writing code, or can’t dive deep into complex systems to implement security controls. Technical Assessment (e.G., Meet the VP of Engineering (60 minutes) Values Interview with Tech Leadership (60 minutes) At hyperexponential, we believe in a balance between remote work, and building relationships across teams and locations. You’ll have your main office in Warsaw, 2 days a week, with the ability to travel to London HQ to meet the wider team. International travel will be much less frequent, perhaps 2-3 times a year. Warsaw HQ was established in 2023, quickly hiring our first handful of high-calibre engineers. Fast-forward to today in 2025, there are 50+ in Warsaw and surrounding cities who travel for the collaborative environment. The office is also dog-friendly, so feel free to bring yours along! Why Other Engineers Joined Us Backed by $73M Series B funding to support bold innovation Collaborative, high-performing culture with 90+ engineers across London and Warsaw. Being challenged and testing ideas quickly. 25 days of non-working + 14 Polish bank holidays ~£Optional for you: access to Healthcare package provided by Luxmed + Multisport (fully funded by yourself as B2B Contractor)~ Top-spec laptop (MacOS or Windows) Contract of employment (UoP)~ 26 days of holiday + 14 Polish bank holidays ~ Healthcare package provided by Luxmed ~ Top-spec work equipment (MacOS / Windows + additional monitors, mechanical keyboards etc)