Mid‑Senior Full‑Stack Engineer: Build Scalable Web Apps

Ki Insurance; Greater London; On-site; GBP 60,000 - 90,000; Full time

Benefits offered by this job

Competitive remuneration

Job summary

Ki Insurance is seeking a Full‑stack Engineer to build robust, scalable software for web‑based applications and enhance the Ki platform. You will design, implement and maintain APIs, collaborate with Product and UX, and drive quality through automated tests and code reviews.

The role requires mid‑senior level experience across a modern web stack, with JVM backend expertise, React/TypeScript front‑end skills and a strong focus on responsive UI and scalable cloud infrastructure.

Qualifications

• Experience as a mid–senior engineer on a modern web stack.
• Solid software engineering principles (SOLID, DRY, ER modelling).
• Server-side experience with a JVM-based language.
• Experience building SPAs with React/TypeScript.
• Front-end knowledge for responsive UI.
• Cloud infrastructure with IaC and strong logging/monitoring practices.
• Exposure to continuous integration and, ideally, continuous delivery.
• Familiar with Maven, Git and modern version control workflows.
• Experience in agile teams using Scrum or Kanban and regular ceremonies.

Responsibilities

• Build robust, scalable software for web‑based applications.
• Develop eye-catching, functional, and reusable web interfaces for these apps.
• Design, build, test, document and maintain APIs and integrations.
• Ensure quality using automated testing, pairing, and code reviews.
• Collaborate with Product to translate end‑user requirements into technical solutions.
• Document technical designs and analyses.
• Assess current architecture and identify opportunities for growth.
• Build mock-ups or prototypes to explore new initiatives.
• Work with Product and UX to review designs and implement new features.
• Explore new ideas and emerging technologies with rapid prototyping.
• Uphold the engineering team’s principles and ways of working.

Skills

JVM language

React/TypeScript

Web development

CI/CD

Agile/SCRUM

REST APIs

Cloud infrastructure

Testing

Git

Tools

Maven

GitHub

Docker

CI/CD

Job description

Ki Insurance is seeking a Full‑stack Engineer to build robust, scalable software for web‑based applications and enhance the Ki platform. You will design, implement and maintain APIs, collaborate with Product and UX, and drive quality through automated tests and code reviews.

The role requires mid‑senior level experience across a modern web stack, with JVM backend expertise, React/TypeScript front‑end skills and a strong focus on responsive UI and scalable cloud infrastructure.