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Senior Software Engineer

External
kantar logoKantar · Porto, Portugal
Full-timeHybrid2w ago
CI/CDGraphQLMongoDBNode.jsPostgreSQLPrisma
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Responsibilities

  • Designing, building, and maintaining scalable backend services using Node.js and TypeScript
  • Developing robust APIs that support our internal platforms and reporting needs
  • Working closely with product and engineering teams to understand requirements and deliver reliable solutions
  • Ensuring data is accurate, consistent, and scalable through effective database integrations
  • Contributing to code quality, performance, and practical engineering standards across the team
  • The skills and experience you'll bring
  • Strong experience building backend services using Node.js and TypeScript
  • Confidence working with databases such as PostgreSQL or MongoDB , and ORMs like Prisma or Sequelize
  • Experience designing and maintaining APIs (REST and/or GraphQL)
  • An understanding of how to build secure, reliable backend systems
  • Clear communication skills and a collaborative approach to problem‑solving
  • Nice to have (but not essential):
  • Experience with authentication and security concepts
  • Familiarity with event‑driven systems or messaging tools
  • Exposure to testing frameworks, CI/CD pipelines, or cloud platforms

Benefits

On top of all your normal benefits like holiday, meal cards and life assurance, we also offer:Five days of Life Leave per year; for those days when life just...gets in the way.Birthday leave - one extra day of holiday taken on the nearest workday to your birthdayTwo days a year to give back and volunteer with an organisation of your choice.Enhanced primary and secondary carer leave for however you choose to grow your family.The chance to hit the beach on your lunch break (yes, we have somewhere you can store your surfboard!)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.What part of Kantar might I be joining?You'll be joining our Profiles division, home to specialists in survey design, sampling and data science. With the world's largest audience network (over 170 million people), we're trusted by many of the worlds leading brands to provide amazing insights from real people.CountryPortugalWhy join Kantar?Health insuranceVision insuranceFlexible schedule

Additional Information

We're the world's leading data, insights, and consulting company; we shape the brands of tomorrow by better understanding people everywhere. Kantar's Profiles division is home to the world's largest audience network. With access to 170m+ people in over 100 global markets, we offer unrivalled global reach with local relevancy. Validated by industry leading anti-fraud technology, Kantar's Profiles Audience Network delivers the most meaningful data with consistency, accuracy, and accountability - all at speed and scale. Job Details Why this role matters We're known for our data. You'll help us turn it into technology that teams and clients can rely on. At Kantar, technology plays a critical role in how we deliver trusted insights to the world's leading brands. As a Senior Software Engineer , you'll help build and evolve the core backend services that power our internal platforms, enabling teams across the business to access accurate, timely, and scalable data. You'll work on backend systems that need to be dependable and easy to evolve, collaborating closely with product managers and fellow engineers to deliver APIs that are well‑designed, performant, and built with long‑term quality in mind. This is a role where you'll combine hands‑on engineering with collaboration and influence, shaping both the solutions you build and how the team builds them.

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