Lead Software Engineer, hyperexponential
AI Products, London
£130.5-159.5k
+ Equity
More information about location
2-3 days a week in office
AI-powered platform transforming risk and pricing decisions
Be an early applicant
AI-powered platform transforming risk and pricing decisions
201-500 employees
Be an early applicant
£130.5-159.5k
+ 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 and shipped technically complex production systems in Python (ideally, but we are also open to Rust and Kotlin, with TypeScript as strong plus), including distributed services and cloud-based infrastructure
- Solved messy, real-world engineering problems involving data, scale, performance, or reliability — not just greenfield CRUD apps
- Taken end-to-end ownership of technical initiatives: identifying opportunities, designing solutions, and delivering impact
- Communicated complex technical ideas clearly to a range of stakeholders, from engineers to product leaders
- Influenced engineering direction and culture, scaling local wins into broader practices
- Delivered AI or ML-powered products from prototype to scale, balancing experimentation with production rigour - nice to have
What the job involves
- At hx, AI is not an add-on, it is central to our mission. We are redefining how the insurance industry builds software and makes decisions, powered by generative AI. Our team combines state-of-the-art LLM technology with deep insurance domain expertise to solve problems no one else is tackling
- We’re currently focused on two flagship products. The first is a powerful ingestion engine that transforms unstructured insurance documents into structured insights. The second is our crown jewel: a domain-specific AI peer-programmer embedded inside a custom IDE, designed to reshape how actuaries and underwriters code, model risk, and make billion-dollar decisions
- This is applied AI with teeth. Our team moves fast, experiments often, and ships real value into the hands of customers. As a Staff Engineer, you’ll join a small, high-ownership group with the autonomy to drive innovation and directly influence how AI transforms an entire industry
- Architect and build AI-driven products from scratch, tackling complex problems with no established playbook
- Lead the design and implementation of novel features such as domain-specific coding copilots within hx’s proprietary development environment
- Partner with cross-functional peers to shape architectural decisions, ensuring scalability, reliability, and long-term sustainability of our AI systems
- Experiment, prototype, and ship rapidly, seeing innovations move quickly from idea to production in live customer environments
- Contribute to the evolution of hx’s AI technical vision, embedding best practices and advancing engineering excellence across the team
- Act as a multiplier: mentoring engineers, raising standards, and building a culture of curiosity, speed, and quality
Application process
- Initial call with Talent team (30 minutes)
- Manager Interview (60 minutes)
- Technical Assessment (e.g., code review, system design) (120 minutes)
- Values Interview with Tech Leadership (60 minutes)
- Offer
- If this opportunity resonates with you, we encourage you to apply or share it with your connections! Our dedicated talent team reviews all applications, and we promise to provide feedback regardless of the outcome
- Please note that background checks will be conducted as part of the hiring process to ensure compliance with our governance policies
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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