Senior Software Engineer

We’re Kingfisher, a team made up of over 74,000 passionate people who bring Kingfisher - and all our other brands: Castorama, B&Q, Screwfix, Brico Dépôt and Koçtaş - to life. That’s right, we’re big, 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. And that’s where you come in.

At Kingfisher, our customers come from all walks 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, gender expression or sexual orientation.

We are open to flexible and agile working. Therefore, we offer colleagues a blend of working from home and our office, located in 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 encourage new ideas, actively support experimentation, and strive to build an environment where everyone can be their best self. Interested? Great, apply now and help us to Power the Possible.

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

Annual performance bonus
Employee referral bonus
Private medical coverage with the Regina Maria Priority Plan
Family medical plan option allowing you to add a spouse or child at no extra cost
Eyeglasses vouchers
Life insurance (Signal Iduna)
7Card fitness membership (co‑funded)
Access to Bookster, LEO Learning and LinkedIn Learning
Fresh fruit bar and premium coffee in the office
Hybrid work model – up to 3 days per week in the office
Flexible working schedule
21 days of annual leave + 1 additional day for each year of tenure (up to 25 days)
Substitution days when public holidays fall on weekends
Paid leave for wedding and bereavement

About the role

We are entering an exciting period of transformation and are looking for a highly motivated and experienced Senior Software Engineer (Backend/Fullstack) to join our Digital Colleague team. This team builds and maintains the handheld application used daily in our stores for order picking, ad‑hoc stock counting, and a wide range of operational tasks. It is a business‑critical product with 24/7 availability, used across multiple locations and essential for smooth store operations.

As a Senior Software Engineer, you will work closely with your cross‑functional teammates to design, build, and enhance features for a high‑impact application used by thousands of colleagues. You will bring technical leadership, fresh ideas, and a proactive mindset to help us evolve our platform and deliver reliable, scalable solutions.

If you’re looking for a role where you can step out of your comfort zone, work on a mission‑critical product, and make a real impact on how our stores operate every day, this opportunity is for you.

Responsibilities

Design, develop, and maintain high‑quality backend and service‑layer solutions for the handheld application
Collaborate with product, engineering, and store‑operations stakeholders to understand requirements and deliver valuable features
Participate in code, design, and test reviews to ensure quality, maintainability, and performance
Apply DevOps practices for continuous integration, automated testing, and deployment
Integrate the application with monitoring and alerting tools to ensure reliability in a 24/7 environment
Mentor teammates and share technical knowledge to support continuous improvement
Contribute to Agile ceremonies and help refine team processes
Use data‑driven approaches to validate assumptions and iterate on product features
Troubleshoot issues across the development lifecycle and support ongoing improvements
Explore and recommend new technologies to enhance the team’s capabilities

Skills and Experience

Strong professional experience with JavaScript and Node.js.
Experience with Vue.js or another modern frontend framework
Solid understanding of REST APIs and service‑oriented architecture
Experience working with AWS services
Familiarity with Cypress or Playwright for automated testing
Understanding of software engineering best practices (version control, unit/integration testing, clean code)
Experience working in an Agile/Scrum environment
Strong problem‑solving skills and the ability to work both independently and collaboratively
Excellent command of English (written and spoken)

Nice to have