
We are transforming the insurance industry through the power of decision intelligence. Disconnected systems, unruly data, and outdated processes are undermining the ability of insurers to make their…

We are transforming the insurance industry through the power of decision intelligence. Disconnected systems, unruly data, and outdated processes are undermining the ability of insurers to make their…
Headquarters: London-based insurtech
Product: hx Renew — AI-powered pricing & underwriting / pricing decision intelligence
Series B: $73M led by Battery Ventures (Jan 2024)
Founding year: 2017
Insurance pricing, underwriting, and decision intelligence for property & casualty insurers and reinsurers.
2017
Software Development
$73,000,000
Participants included Andreessen Horowitz (a16z) and Highland Europe
“Led by Battery Ventures with participation from a16z and Highland Europe”
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Engineering at hyperexponential At hyperexponential (hx) we are transforming the traditional insurance industry with our groundbreaking SaaS platform, hx Renew. Insurers use it to build complex mathematical models that enable smarter, faster pricing decisions—whether it’s calculating the cost to insure a global superstar’s concert tour or protecting entire states from natural disasters.
With hx Renew, insurers can rapidly develop and iterate pricing models in Python and React within a modern software environment, free from the burden of legacy tech. What once took months now takes weeks—or even days. This agility has made our product the go-to platform for insurers worldwide.
In just five years, our winning formula has earned the trust of industry giants like Aviva and Top 5 US insurers, as well as cutting-edge innovators like Convex and Inigo. Our engineering team—made up of some of the brightest (and kindest!) minds in the industry—pushes technological boundaries every day through creative innovation and regular hackathons.
Your Unique Mission As a Backend Engineer in our Shared Architecture team (Sharc for short 🦈), you'll build the essential systems that power the entire engineering organisation. From SSO and identity , to our API gateway , to event-driven data platforms
This is not a backend role that sits in a corner. The tools you build will be used by every engineer, and the quality of your work will ripple through the entire product. If you thrive on solving deep technical puzzles and love helping others move faster by building robust infrastructure—this is your kind of challenge.
What You’ll Do
What Makes This Role Exciting
You’re building the backbone of a fast-growing product company
Must-Haves What You Bring
Nice-to-Haves
What Success Looks Like 30 Days: You’ve set up, contributed to early features, and understand the ecosystem and tools.
60 Days: You’re owning small projects and helping a product team adopt our tools.
90 Days: You’ve led a project to production, improved a core system, and started shaping our engineering standards.
Long-term: You’ve become a go-to engineer on shared infrastructure, helping shape the roadmap, mentoring others, and driving scale and reliability across the platform.
Why Other Engineers Joined Us
What We Offer
This role is Warsaw based (flexible hybrid, 2 days in the office). Learn more about our ways of working here: https://hx.wiki/wow
Interview Process Initial chat with our Talent team to kick things off
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.
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Your work directly influences how quickly and safely every product team can ship
You’ll work in a high-trust, collaborative team culture that values clarity, autonomy, and technical excellence
You’ll tackle interesting challenges like balancing flexibility with standardisation, designing for scale without complexity, and enabling adoption without friction
You’ll work on high-impact projects like:
A unified SSO system used across internal and external tools
A webhook platform that powers real-time integrations
API observability and validation tooling that’s actually delightful to use