Ki

Algorithmic underwriting platform for multiple quotes

Full Stack Engineer

Full-Stack EngineeringConfirmed live in the last 24 hours

Full-timeLondon, UKNo salary listedHybrid

About the Job

Requirements

Experience as a mid-senior level engineer working across a modern web stack.
Experience with software engineering principles, including SOLID, DRY, and entity-relationship modeling.
Professional experience with a server-side language, ideally JVM-based.
Professional experience building web-based single-page applications using React, TypeScript, or an equivalent technology.
Knowledge of front-end development and the ability to build rich user interfaces following responsive design.
Comfort with cloud infrastructure and infrastructure as code, and familiarity with standard logging and monitoring tools used to investigate issues.
Experience with continuous integration, or ideally continuous delivery.
Comfort with build tools such as Maven and version control tools such as Git or GitHub.
Experience working in agile teams following Scrum or Kanban, and participating in regular ceremonies including stand-ups, planning, and retrospectives.
Experience using project management and workflow tools such as Jira.
Ability to quickly comprehend the functions and capabilities of new technologies.

Responsibilities

Build robust and scalable software for business-critical, web-based applications.
Build eye-catching, functional, efficient, and reusable web- and mobile-based sites that drive web applications.
Design, build, test, document, and maintain APIs and integrations.
Ensure quality control using industry-standard techniques such as automated testing, pairing, and code review.
Work with the Product team to understand end-user requirements and translate them into an effective technical solution.
Document technical design and analysis work.
Assess current system architecture and identify opportunities for growth and improvement.
Build mock-ups or prototypes to explore and troubleshoot new initiatives.
Work with the Product team and UX designers to review designs, implement new features, and ensure a high-quality user experience.
Explore new ideas and emerging technologies, and develop prototypes quickly.
Uphold the engineering team’s principles and ways of working.

Desired Qualifications

Professional experience with a server-side language, ideally JVM-based.
Experience with continuous integration, ideally continuous delivery.

Full Stack Engineer

Ki · London, United Kingdom (Hybrid) · Full-time · Posted 2026-07-17

Workplace: hybrid

Department: Engineering

Description

Who are we?👋

Look at the latest headlines and you will see something Ki insures. Think space shuttles, world tours, wind farms, and even footballers’ legs.

Ki’s mission is simple. Digitally disrupt and revolutionise a 335-year-old market. Working with Google and UCL, Ki has created a platform that uses algorithms, machine learning and large language models to give insurance brokers quotes in seconds, rather than days.

Ki is proudly the biggest global algorithmic insurance carrier. It is the fastest growing syndicate in the Lloyd's of London market, and the first ever to make $100m in profit in 3 years.

Ki’s teams have varied backgrounds and work together in an agile, cross-functional way to build the very best experience for its customers. Ki has big ambitions but needs more excellent minds to challenge the status-quo and help it reach new horizons.

Where you come in?

We’re looking for a Full-stack Engineer to join our development team.

The Ki platform is the core technology crucial to our success — allowing us to evolve underwriting intelligently and unlock massive scale.

We’re a multi-disciplined team, bringing together expertise in software and data engineering, full-stack development, platform operations, algorithm research, and data science. Our squads focus on delivering high-impact features, and we favour a highly iterative, analytical approach.

What you will be doing: 🖋️

Build robust and scalable software for business critical, web-based applications
Build eye-catching, functional, efficient, and reusable web and mobile-based sites that drive these web applications
Design, build, test, document and maintain API’s and integrations
Ensure quality control using industry standard techniques such as automated testing, pairing, and code review
Work with the Product team to understand end-user requirements and translate them into an effective technical solution
Document technical design and analysis work
Assess current system architecture and identify opportunities for growth and improvement
Build mock-ups or prototypes to explore and troubleshoot new initiatives
Work with the Product team and UX designers to review designs, implement new features, and ensure user experience is top level
Explore new ideas and emerging technologies, develop prototypes quickly
Uphold the engineering team’s principles and ways of working

What to expect during the recruitment process:

1) Initial recruiter screening call

2) Interview with hiring manager

3) Technical Interview (this may vary depending on the role)

4) Values Interview

Requirements

Experience as a mid-senior level engineer working across a modern web stack
Experience with software engineering principles (SOLID, DRY, ER modelling)
Professional experience with a server-side language, ideally JVM based
Professional experience building web-based single page applications, using React/Typescript or an equivalent
Knowledge of front-end development, able to build rich user interfaces following a responsive design
Comfortable working with cloud infrastructure, infrastructure as code, familiar with standard logging and monitoring tools used to investigate issues
Experience with continuous integration, or ideally, continuous delivery
Comfortable with build tools (e.g. Maven) and version control tools (e.g. Git/Github)
Experience working in agile teams, following Scrum or Kanban, participating in regular ceremonies including stand-ups, planning, and retrospectives
Experience using project management and workflow tools (e.g. Jira)
Exceptional interpersonal skills, including teamwork, facilitation, negotiation and planning
Ability to quickly comprehend the functions and capabilities of new technologies

Benefits

You’ll get a highly competitive remuneration and benefits package. This is kept under constant review to make sure it stays relevant. We understand the power of saying thank you and take time to acknowledge and reward extraordinary effort by teams or individuals.

Apply

Apply at Ki

About the Company

Ki

Algorithmic underwriting platform for multiple quotes

Ki Insurance runs a digital, algorithmic underwriting platform for the London market. It collects quotes from multiple capacity partners in one place and offers follow capacity—additional insurance based on a lead quote and risk information—through its network, including Aspen Digital Syndicate 4711, Beazley Syndicates 623 and 2623, Ki Syndicate 1618, and Travelers Syndicate 5000. Machine learning helps improve underwriting efficiency and accuracy, enabling brokers and underwriters to compare and attach more capacity. Unlike firms that provide a single quote from one carrier, Ki combines several capacity quotes and supports risk sharing with partners, backed by substantial investor capital (Blackstone and Fairfax) and a high Gross Written Premium of £834 million in 2022, making it the largest insurtech in London. Its goal is to simplify insurance placement, expand capacity, and better manage risk in the London market by scaling digital underwriting and partner networks.

Company size: 501-1,000
Company stage: Growth Equity (Non-Venture Capital)
Total funding: $500M
Headquarters: London, United Kingdom
Founded: 2020

Recently Posted Jobs

Explore more opportunities at Ki

See more jobs