Senior Backend Engineer (Node.js/TypeScript) – Hybrid

Kantar; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Flexible hybrid working

25 days leave

2 days volunteering and life event-lea

Competitive salary and bonus

Company pension

Enhanced parental leave

Healthcare options

Wide range of flexible benefits

Job summary

Kantar is hiring a Senior Software Engineer to design, build, and evolve core backend services powering internal platforms. You will work with Node.js and TypeScript to deliver scalable APIs that support reporting and data access.

The role offers a flexible hybrid setup (London or Reading) with cross‑team collaboration, strong emphasis on code quality, security, and long‑term maintainability.

Qualifications

• Experience building backend services with Node.js and TypeScript.
• Experience with PostgreSQL or MongoDB and ORMs (Prisma/Sequelize).
• API design experience (REST/GraphQL).
• Knowledge of secure, reliable backend systems.
• Strong communication and collaboration.

Responsibilities

• Design, build, and maintain scalable backend services.
• Develop robust APIs to support internal platforms and reporting.
• Collaborate with product and engineering teams to gather requirements.
• Ensure data accuracy and scalable database integrations.
• Contribute to code quality, performance, and engineering standards.

Skills

Node.js

TypeScript

APIs (REST/GraphQL)

Backend design

Communication

Tools

Prisma

Sequelize

PostgreSQL

MongoDB

Job description

Kantar is hiring a Senior Software Engineer to design, build, and evolve core backend services powering internal platforms. You will work with Node.js and TypeScript to deliver scalable APIs that support reporting and data access.

The role offers a flexible hybrid setup (London or Reading) with cross‑team collaboration, strong emphasis on code quality, security, and long‑term maintainability.