Jobs and Careers

Senior Software Engineer - Backend (Audience Platform - Customers API)

Tesco

Kraków, Polandfull_timeVerifiedPosted 30 Jun 2026

💰 PLN 396,000/yr(PLN 312,000/yr – PLN 396,000/yr)

About the role

Tesco Poland • Kraków • Full-Time • Working hours 40 • Apply by 31-Oct-2026

About the role

The Audience Platform team is part of Customers API, the platform that holds core data about Tesco customers and powers personalized customer communication and experiences across Tesco. The platform processes around 500 million customer attribute updates every week and continues to grow as Tesco increases the scale, relevance, and personalization of customer engagement. Built as a cloud-native microservice architecture on Azure, the platform uses Azure Service Bus for event-driven processing, PostgreSQL for data storage, and is currently evolving from Azure App Services towards Kubernetes to support the next stage of scalability and resilience.

A Software Development Engineer III in this team will be responsible for designing, building, and maintaining highly scalable services that process large volumes of customer data while keeping the platform reliable, performant, and maintainable. The role will focus on solving real-world scalability and performance challenges in a modern service with low technical debt, while contributing to the team’s migration to Kubernetes and continued evolution of its architecture. Looking ahead, the team will also explore how to leverage the data in the platform using LLMs, embeddings, new database technologies, and UI capabilities to reduce the time needed to create new customer audiences. This is an opportunity for a senior engineer to work on a business-critical platform that directly enables personalized experiences for Tesco customers at massive scale.

What is in it for you

Salary

UoP 26 000 - 33 000 PLN gross/month

Hybrid work

We know life looks a little different for each of us. That’s why at Tesco, we always welcome chats about different flexible working options. Some people are at the start of their careers, some want the freedom to do the things they love. Others are going through life-changing moments like becoming a carer, adapting to parenthood, or something else. So, talk to us throughout your application about how we can support.

This role requires you to be based in or near Kraków, as you will spend 60% (3 days) of your week collaborating with colleagues at our office locations or local sites and the rest remotely.

Benefits

Tesco is a diverse and exciting employer, dedicated to being #aplacetogeton, providing career-defining opportunities to all of our colleagues. If you choose to join our business, we will provide you with (for all):

Up to 20% yearly salary bonus – based on both individual and business performance
Permanent contract from the go – as a sign of our trust in your abilities
Tax deductible expenses (IP)
Private healthcare (LuxMed)
Cafeteria & Multisport
Additional 4 days of paid leave to support your well-being and family life
Increase in annual leave (from 20 to 25 days) to those not yet eligible for the full holiday entitlement
Learning opportunities - certified technical training and learning platforms like Udemy
Back-to-school day – 1 day off for parents of primary school children
Fertility leave – up to 2 weeks of paid leave for IVF treatment
Sports activities with a personal trainer in the office
Referral Bonus
MacBook as your tool for work

If that sounds exciting, then we'd love to hear from you!

Tesco is committed to celebrating diversity and everyone is welcome at Tesco. As a Disability Confident Employer, we’re committed to providing a fully inclusive and accessible recruitment process, allowing candidates the opportunity to thrive and inform us of any reasonable adjustments they may require

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