Backend Engineer, hyperexponential
Kotlin, Analytics
£60-85k
2-3 days a week in office
AI-powered platform transforming risk and pricing decisions
Open for applications
AI-powered platform transforming risk and pricing decisions
201-500 employees
Open for applications
£60-85k
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 production backend systems with proven experience as a polyglot engineer, ideally with strong Kotlin skills and the ability to work effectively across multiple languages and tech stacks.
- Delivered scalable cloud infrastructure using AWS and infrastructure-as-code tools like Terraform, with hands-on experience building distributed systems that handle real-world data volumes.
- Designed robust data architectures with a strong grasp of distributed systems, API development, and the patterns that make complex data processing reliable and maintainable.
- Collaborated effectively across teams to deliver features that customers actually use, with evidence of translating business requirements into technical solutions that drive measurable impact.
- Maintained high code quality standards with a commitment to clean, well-documented, maintainable systems and the discipline to build infrastructure that scales with business growth.
- Demonstrated curiosity about emerging technologies, particularly around data processing, analytics platforms, and AI/ML tools that can enhance developer productivity and unlock new customer value.
Desirable
- Experience working in insurance, finance, or other data-intensive domains
What the job involves
- Build scalable data systems in Kotlin that enable insurers to ingest, process, and explore complex datasets, turning months of manual analysis into real-time insights that drive billion-dollar risk decisions.
- Design distributed analytics infrastructure on AWS using Terraform, creating robust, cloud-native systems that handle enterprise-scale data volumes while maintaining reliability and performance.
- Deliver customer-facing analytics features that transform how users understand and optimise risk modelling, building intuitive interfaces for complex portfolio analytics that were previously impossible.
- Drive technical innovation in data architecture, piloting emerging technologies and AI/ML approaches that continuously improve the analytics experience and unlock new capabilities for customers.
- Collaborate across disciplines with Product, UX, and Engineering teams to translate complex business requirements into elegant technical solutions that balance powerful functionality with usability.
- Elevate system quality through robust architecture decisions, comprehensive testing, and clear documentation that makes complex data systems maintainable and scalable as the team grows.
Application process
- Initial call with our Talent team to kick things off (30 mins)
- Manager Interview (60 mins)
- Technical Interview - Code Review & AI Pairing (120 mins)
- Values Interview (60 mins)
- We 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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