About hyperexponential (hx)
At hyperexponential, we're building the agentic platform for end-to-end underwriting, helping insurers make the most critical decisions in a $7 trillion industry: which risks to take, and how to price them. These decisions shape real-world outcomes, from whether rockets launch into space and autonomous vehicles reach the market, to how communities recover after major storms.
Until now, insurers have been making billion-dollar decisions with outdated tools. We're changing that. Our platform brings together data, AI and human expertise to give insurers the fastest path from submission to decision, so they can move faster, act smarter and take on more risk with confidence.
Founded in 2017 by two former actuaries and backed by a16z, Highland Europe and Battery Ventures, we're scaling globally. We're already trusted by nearly 50 of the world's largest insurers, with zero churn and billions in premiums flowing through hx. In October we announced that hx has agreed to join Guidewire, one of the world's leading insurance technology companies, which gives what we're building an even bigger stage.
What began as pricing and model development is now an agentic platform for end-to-end underwriting. It takes insurers from submission and triage through to the underwriting decision, with AI working across the whole workflow and underwriters in control. Our newest product, hyperoperator, is a unified agent for underwriting work.
What makes hx different is the people who build it. Here, impact isn't tied to title or tenure. 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 built to last.
About the Delivery Engineering team
Our Delivery Engineering team is a blend of engineers, actuaries, mathematicians and data scientists. We don't take on traditional transformation projects (we have brilliant partners for that). We specialise in the most difficult and interesting problems our customers face, where only a mix of technical depth, market expertise and hx platform knowledge will do.
Delivery Engineers are the experts' experts of the hx platform. You'll learn it top to bottom, including its limits, which of them can be pushed, and every trick and shortcut along the way. You'll combine that with a growing knowledge of insurance technology to show customers the art of the possible, while working alongside some of the brightest, most ambitious people in tech and insurance.
As an Associate, you'll learn from Senior Delivery Engineers, including former actuaries who act as mentors and coaches, and you'll get a structured onboarding to build your platform and insurance knowledge from day one.
What you'll be doing
Learning the hx modelling platform with support from senior colleagues, and shipping your first models within days.
Building and maintaining models in Python, applying modern approaches so they integrate seamlessly.
Working with customer actuarial and underwriting teams, partner developers and colleagues to solve complex coding problems.
Reviewing and testing models as part of our day-to-day quality assurance.
Using AI tools such as Claude to work faster, while making sure you can explain every line you ship.
Helping improve our training materials, our model development standards and the way we work.
What you'll need
This role is open to graduates, and we're happy to hire straight from university.
Strong Python fundamentals, shown through a degree in a technical subject (maths, statistics, computer science, engineering, data science or similar), internships or personal projects. Clear, tested code and being able to explain your choices matter more than years of experience.
Experience of predictive modelling or analytics methods, through study or work. Exposure to insurance or actuarial work is a bonus but not essential, and we'll help you build the domain knowledge.
A self-starter attitude: you work autonomously, ask for help early and take charge of your own development.
A passion for experimenting with new approaches and technologies, through work, study or personal projects.
Comfort explaining technical ideas to non-technical colleagues and customers, in English.
You're unlikely to thrive here if
You prefer following detailed instructions to experimenting and finding your own approach.
You're uncomfortable working directly with non-technical stakeholders to understand their challenges.
You avoid ambiguous or open-ended problems where the answer isn't obvious.
If reading our Culture Document leaves you feeling neutral rather than energised, hx may not be the place where you'll do your best work. We're building something that asks for commitment and conviction, and we want you to be excited by the chance to grow with us.
Compensation
Salary: PLN 160,000 to 220,000 gross per year, about PLN 13,300 to 18,300 gross per month.
We're committed to salary transparency, so you'll always have clarity on pay early in the process.
Benefits
£5,000 budget for learning and development
26 days of holiday plus 14 Polish bank holidays
Company pension
10 days of company sick pay at 100% of salary, then in line with labour law
Mental health support and therapy via Spectrum.life
Monthly wellbeing allowance via Juno
Healthcare package provided by Luxmed
Multisport card at Classic level
Top-spec work equipment (MacOS or Windows, extra monitors, mechanical keyboards and more)
Additional perks
Regular remote and in-person hackathons, lunch and learns, socials and game nights
Team breakfasts and lunches, snacks, a drinks fridge and a fun office at The Brain Embassy
Real opportunities for personal development and growth as we build something remarkable together
Interview process
Initial call with our Talent team (30 minutes)
Take-home Python task, followed by a Skills Interview (1 hour)
Manager Interview (1 hour)
Values Interview (60 minutes)
Meet the CEO (30 minutes)
Our commitment to diversity
hxers are at the centre of everything we build. Progress depends on diverse perspectives, and we're committed to an environment where everyone can thrive, grow and make an impact. We know there is always more to do, and we take responsibility for building a workplace that is not only diverse but genuinely inclusive.
Diversity isn't just the right thing to do, it's key to solving the complex challenges we choose to take on. By welcoming people from all backgrounds and experiences, we strengthen our ability to question assumptions, push boundaries and design solutions that last. If you're energised by complexity and motivated to grow, we encourage you to apply.
Next steps
If this sounds like you, apply or share it with your network. Our talent team reviews every application, and we promise to give feedback whatever the outcome. To see other opportunities, visit our careers page.
Please note that background checks will be conducted as part of the hiring process to ensure compliance with our governance policies. We handle all background checks sensitively and in full compliance with relevant regulations. All applicant data will be processed in accordance with data protection regulations and our privacy policy.