We go beyond the obvious, using intelligence, passion and creativity to inspire new thinking and shape the world we live in. To start a career that is out of the ordinary, please apply... Job Details Why this job is important We’re looking for a Senior Software Engineer to join the growing engineering team behind LIFT ROI, Kantar’s AI-powered Marketing Mix Modelling platform. LIFT ROI helps some of the world’s leading brands understand what drives marketing performance, connect investment to business outcomes and make smarter decisions about where to invest next Based in Copenhagen, you’ll join a collaborative engineering environment working primarily with Go (Golang) across our backend services, alongside technologies including Node.js and Python. You’ll work closely with engineering, product and data science colleagues to build and evolve a scalable platform, deliver new capabilities and contribute to our AI-enabled roadmap. If you’re an experienced backend engineer who enjoys solving complex technical problems, building high-quality software and working across technologies, we’d love to hear from you. Commercial Go experience is highly valued, but we’re also interested in strong backend engineers who are motivated and able to develop their Go expertise. What you’ll be doing 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. The ideal skills & experience Strong backend experience building production services, ideally using Go (Golang). We’re also open to experienced backend engineers with transferable skills who are motivated to develop their Go expertise. 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. What’s in it for you Hybrid working Up to 5 weeks holiday per year, 2 days paid for volunteering and life event leave Competitive salary and bonus (bonus dependent on role) Company pension Primary caregivers leave fully funded for a minimum of 16 weeks. Secondary caregivers leave fully funded for a minimum of 4 weeks Healthcare cover Meal subsidy Please be aware, the majority of our roles are hybrid, working three days a week in our office. We’re not able to offer visa sponsorship or help with relocation support for this role. Please make sure you’ve got the right to work in the country where this role is located before applying. Location Copenhagen, RaadhuspladsenDenmark Kantar Rewards Statement At Kantar we have an integrated way of rewarding our people based around a simple, clear and consistent set of principles. Our approach helps to ensure we are market competitive and also to support a pay for performance culture, where your reward and career progression opportunities are linked to what you deliver. We go beyond the obvious, using intelligence, passion and creativity to inspire new thinking and shape the world we live in. Apply for a career that’s out of the ordinary and join us. We want to create an equality of opportunity in a fair and supportive working environment where people feel included, accepted and are allowed to flourish in a space where their mental health and well being is taken into consideration. We want to create a more diverse community to expand our talent pool, be locally representative, drive diversity of thinking and better commercial outcomes. Kantar is the world’s leading data, insights and consulting company. We understand more about how people think, feel, shop, share, vote and view than anyone else. Combining our expertise in human understanding with advanced technologies, Kantar’s 30,000 people help the world’s leading organisations succeed and grow. KANTAR Kantar is the world’s leading data, insights and consulting company. We understand more about how people think, feel, shop, share, vote and view than anyone else. Combining our expertise in human understanding with advanced technologies, Kantar’s 30,000 people help the world’s leading organisations succeed and grow.

Senior Software Engineer GO/Golang.

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