Senior Go Backend Engineer – LIFT ROI AI Platform

Kantar; Region Hovedstaden; Hybrid; DKK 900,000 - 1,200,000; Full time

Benefits offered by this job

Hybrid working

Holiday allowance

Salary and bonus

Company pension

Caregiver leave

Healthcare cover

Meal subsidy

Job summary

Kantar in Copenhagen is seeking a Senior Software Engineer to join the engineering team behind LIFT ROI, our AI-powered Marketing Mix Modelling platform. You will design, build and maintain Go backend services focused on performance and scalability, working with Node.js and Python as needed.

You’ll collaborate with product and data science colleagues to evolve the platform, tackle technical debt, and contribute to an AI-enabled roadmap.

Qualifications

• Strong backend experience building production services using Go (Golang).
• Solid experience designing and consuming APIs and working with databases (schema design, queries, performance).
• Working knowledge of LLMs and MCPs (Model Context Protocol), and comfort using Python alongside Go.
• A pragmatic approach to balancing new feature delivery with technical-debt reduction and code quality.
• Basic knowledge of Kubernetes and Docker
• Frontend experience is a plus – nice to have, but not a must-have.

Responsibilities

• Design, build and maintain backend services in Go – with a focus on performance, security, scalability and clean, well-tested code.
• Deliver new product features while actively tackling technical debt to keep the platform healthy and easy to evolve.
• Design and evolve robust APIs and data models, ensuring reliable integration across the LIFT ROI platform.
• Contribute to our AI-enabled roadmap, helping integrate LLM- and MCP-based tooling into the product.
• Collaborate closely with engineers, product and data science through code reviews, technical discussions and architectural planning.

Skills

Go (Golang)

API design

Databases

LLMs & MCPs

Kubernetes & Docker

Frontend optional

Tools

Kubernetes

Docker

Python

Job description

Kantar in Copenhagen is seeking a Senior Software Engineer to join the engineering team behind LIFT ROI, our AI-powered Marketing Mix Modelling platform. You will design, build and maintain Go backend services focused on performance and scalability, working with Node.js and Python as needed.

You’ll collaborate with product and data science colleagues to evolve the platform, tackle technical debt, and contribute to an AI-enabled roadmap.