Software Engineer (React)

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.

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

• 13,000 - 22,000 PLN gross per month on an employment contract
• Private medical healthcare at LUXMED (including dentalcare) for you and your family
• Medicover sports card (Fit&More package)
• 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

What's the job

About the role

As a Software Engineer in the Web Platform team, you will help build, maintain and improve the shared frontend platform used by multiple engineering teams. You will work across frontend applications, cloud services, developer tooling and production operations to deliver reliable, scalable solutions and improve the experience of teams using the platform.

This role is ideal for an experienced engineer who enjoys solving complex technical problems, working across the full software lifecycle, and supporting software in production.

If you're looking 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, develop, test, and maintain high-quality frontend solutions, ensuring they are reliable, scalable, and maintainable.
• Contribute to technical discussions and decisions within the team, following established architectural principles, engineering standards, and best practices.
• Support platform and enablement initiatives aimed at improving developer experience, engineering efficiency, and the effective use of shared tools and services.
• Collaborate with more experienced engineers on architecture, cloud, and infrastructure topics to ensure frontend solutions integrate effectively with the wider technology ecosystem.
• Work closely with backend engineers, product partners, and designers to understand requirements and deliver high-quality features.
• Contribute to the ongoing improvement of frontend architecture and explore modern technologies and development practices.
• Write clean, maintainable, and well-tested code, following established testing, code review, and release processes.
• Identify and suggest improvements to development workflows, tooling, and overall product quality.
• Actively participate in knowledge-sharing activities, collaborate with team members, and continuously develop technical skills.
• Communicate effectively with team members and stakeholders, providing updates on progress, potential challenges, and technical considerations.

What you'll bring

• Practical experience developing and maintaining frontend applications using TypeScript, HTML, and CSS.
• Good working knowledge of modern frontend frameworks, particularly React.js, with exposure to Remix or similar technologies.
• Understanding of web application architecture and core web technologies, including DNS, web servers, and basic concepts of microfrontend architecture.
• Experience working with RESTful APIs and JSON, with familiarity with GraphQL and API integration in frontend applications.
• Hands-on experience writing and maintaining automated tests using tools such as Playwright, Jest, or similar testing frameworks.
• Familiarity with CI/CD pipelines, version control, and modern software development and deployment practices.
• Experience with AWS services such as Lambda, API Gateway, S3, Valkey and CloudFront.
• Awareness of web accessibility standards and user experience principles, with the ability to apply them in day-to-day development.
• Good understanding of software engineering best practices, including code quality, performance, security, and maintainability.
• Good problem-solving skills, a collaborative approach, and the ability to communicate technical topics clearly with team members and stakeholders.
• Excellent command of English (written and spoken)