Senior Software Engineer (Java)

SeniorSoftware Engineer (Java)

(Hybrid/Kraków 1 day per week in the office)

WereKingfisher a team made up of over74000 passionate people who bring Kingfisher - and all our other brands: Castorama B&Q Screwfix BricoDépôtandKoçtaş- to life.Thatsrightwerebig but we have ambitions to become even bigger and even better. We want to become the leading home improvement company and grow the largest community of home improvers in the world. Andthatswhere you come in.

At Kingfisher our customers come from allwalks of life and so do we. We want to ensure that all colleagues future colleagues and applicants to Kingfisher are treated equally regardless of age gender marital or civil partnership status colour ethnic or national origin culture religious belief philosophical belief political opinion disability gender identity genderexpressionor sexual orientation.

We are open to flexible and agile working. Therefore we offer colleagues a blend of working from home and our officelocatedin Kraków. Talk to us about how we can best support you!

At Kingfisher we value the perspectives that any new team members bring and we want to hear from you. We encourage you to apply for one of our roles even if you do not feel you meet 100% of the requirements.

In return we offer an inclusive environment where what you can achieve is limited only by your imagination! We encouragenew ideas actively support experimentation and strive to build an environment where everyone can be their best self.

We offer a competitive benefit package and plenty of opportunities to stretch and grow your career:

• 20000 - 28000 PLN gross per month on an employment contract
• Private medical healthcare at LUXMED (including dentalcare) for you and your family

• Medicoversports card (Fit&Morepackage)

• Life insurance financed by the employer

• 30-minute lunch break included in the 8-hour working day

• Work in a highly professional and stimulating atmosphere

• Training & Buddy programme that will allow you to quickly adapt to your new role

• Wellbeing programme for employees

• Co-financing of monthly tickets for the public transport in Krakow

• Comfortable working environment in the office and the possibility of home office

• Language courses accounting courses access to LinkedIn Learning and the possibility of co-financing studies and certification

• Employee referral programme

About the role

We are looking fora highly motivated and experienced Senior Backend Engineer to join our Software Engineering team. You will be part of a technology hub working across the full software development lifecycle and contributing to the foundations of new platforms and capabilities.

This role sits within a team responsible for authentication (AUTH) services across the group playing a critical role in enabling secure scalable and reliable access to our products. As a Senior Software Engineer you will work closely with your cross-functional team to design and implement new features and services while bringing ideas energy and technical leadership to the table.

Ifyourelooking for an exciting opportunity to step out of your comfort zone and make a real impact building better software this is the job for you!

Responsibilities

• Design build andmaintainsecure scalable backend services taking solutions from concept through to production.

• Work closely with product security and engineering stakeholders to deliver high-value authentication and platform capabilities.

• Contribute to system and architecture designparticipatingin code and quality reviews tomaintainhigh engineering standards.

• Apply DevOps and Agile practices including automated testing continuous integration and frequent reliable releases.

• Ensure services are production-ready through strong observability monitoring and operational support.

• Mentor and support other engineers helping to build a collaborative and high-performing team.

• Continuously improve software quality and reliability through data-driven iteration experimentation and proactive problem-solving.

• Strong commercial experience in Java with provenexpertisein building production-grade backend systems using Spring / Spring Boot.

• Extensive experience designing and developing scalable secure services in complex distributed environments.

• Solid understanding of authentication and authorisation concepts with hands-on experience using OAuth 2.0 and JWT.

• Experience working with APIs and integrating backend services within a wider platform ecosystem.

• Strong knowledge of software engineering best practices including clean code testing and code reviews.

• Familiarity with DevOps and Agile ways of working including CI/CD pipelines and cloud-native development.

• Ability to take technical ownership collaborate effectively with cross-functional teams and mentor other engineers.

• Excellent command of English (written and spoken)