About the roleThe Profile Data API team builds high‑scale, high‑performance services that power customer profile data across Tesco. We design secure, reliable and efficient APIs for names, contact details, marketing permissions and customer preferences - enabling fast, consistent interactions across the Tesco technology landscape. Our systems run in Azure and on Tesco’s on‑prem cloud, offering engineers the chance to solve meaningful challenges around distributed systems, low‑latency data access, performance optimisation and resiliency at enterprise scale. It’s an ideal environment for engineers who enjoy tuning systems, improving throughput, reducing latency, and building robust platforms that handle millions of requests per day. What is in it for youSalaryUoP 26 000 - 33 000 PLN gross/monthB2B 27 000 - 35 000 net/monthHybrid workingWe 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.BenefitsTesco 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): Permanent contract from the go – as a sign of our trust in your abilities MacBook as your tool for work Learning opportunities - certified technical training and learning platforms like Udemy Referral Bonus Sports activities with a personal trainer in the office Benefits for colleagues on employment of contract only: Additional 4 days of paid leave to support your well-being and family life Up to 20% yearly salary bonus – based on both individual and business performance Private healthcare (LuxMed) Cafeteria & Multisport Supporting those, who are not yet eligible for full holiday entitlement, by expanding their pool from 20 to 25 days Relocation Help IP Tax Deductible Costs 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.You will be responsible forWhile specific responsibilities will evolve with Tesco’s business needs, the role’s key areas of impact include:• Developing high-quality software solutions with proficiency in Java (Spring Boot or other frameworks).• Working with Microsoft Azure and Terraform (Infrastructure as Code) or demonstrating a willingness to learn.• Implementing and advocating CI/CD best practices for seamless software delivery.• Maintaining high-quality documentation to support development processes and system design.• Ensuring solutions are robust, scalable, and efficient.• Taking ownership of systems, driving reliability, maintainability, and performance.• Mentoring and supporting fellow engineers, fostering a culture of growth and collaboration.• Automating workflows and building tools/scripts to enhance efficiency.Technology stack we are using:• Languages: Experience in delivering Java (or any other JVM language), good to have: JS, TypeScript• Frameworks: Spring Boot or Micronaut• Cloud: Azure, Terraform for infrastructure automation• Architecture: Microservices• DB: SQL (PostgreSQL), NoSQL databases, e.g. Cosmos DB or Couch DB• Monitoring & alerting: Splunk, xMatters, New Relic etc.• VCS: GitHub• Zendesk & JIRAYou will need• Around 6+ years of experience in delivering Java• Experience working with Agile methodologies (Scrum/Kanban)• Good English communication skills• Experience with Azure, AWS or other cloud solutions, Terraform• Experience in system design• Experience in taking ownership of a project and leading a team from a technical/project perspective• Proactive attitudeAbout usTesco is a leading multinational retailer, with more than 330 000 colleagues.  Our software is used by millions of people across several countries every day. Whether it’s the tills and websites our customers use, or the systems our colleagues and partners use, you’ll play your part in keeping it running like a well-oiled machine. And when a business problem pops up? You and the creative minds in our team will be challenged to solve it.  As Tech Hub we cooperate within the group of Tesco Technology Hubs located in the UK, Poland, Hungary, Czech Republic and India.  What our colleagues like the most at Tesco:   We develop our own products  We make an impact; large scale of operation  Accountability and respect are given to us  We cooperate and support each other  There are great colleagues who are divided into small teams here  We can develop and learn new things