Senior Software Engineer (React Native)

Senior Software Engineer (React Native)
(Hybrid/Kraków – 1 day per week in the office) 

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: 

• 20,000 - 28,000 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 

We are looking for a Senior Software Engineer to join our engineering team. In this role, you will contribute to the design, development, and continuous improvement of high-quality software solutions, working closely with cross-functional teams to deliver value to our customers. 

As a senior member of the team, you will play an active role in technical discussions, support engineering best practices, and help drive the delivery of scalable and reliable products. You will collaborate with engineers, product managers, and stakeholders throughout the software development lifecycle, contributing to both technical excellence and team success. 

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, and maintain high-quality software solutions that are scalable, reliable, and user-focused. 

• Collaborate closely with Product Managers, Designers, and Engineers to understand requirements and deliver valuable features and enhancements. 

• Contribute to technical discussions, solution design, and architectural decisions, helping to shape the future direction of the product. 

• Write clean, maintainable, and well-tested code while promoting engineering best practices and quality standards. 

• Support the delivery of features throughout the full software development lifecycle, from design and implementation to deployment and ongoing improvement. 

• Identify opportunities to improve performance, stability, development processes, and overall product quality. 

• Work collaboratively within a cross-functional team, sharing knowledge and supporting the growth and development of other engineers. 

• Communicate effectively with stakeholders and team members, providing visibility of progress, challenges, and technical considerations. 

What you'll bring

• Strong commercial experience developing software applications using React Native, TypeScript, and Redux. 

• Proven ability to design and build scalable, maintainable, and high-quality applications within complex engineering environments. 

• Strong understanding of application architecture, state management, performance optimisation, and software design principles. 

• Hands-on experience with automated testing using Jest and a commitment to delivering well-tested, reliable software. 

• Experience integrating APIs and working with distributed systems and modern service-oriented architectures. 

• Strong knowledge of software engineering best practices, including code quality, security, performance, and scalability. 

• Excellent problem-solving and analytical skills, with the ability to make sound technical decisions and drive solutions independently. 

• Strong communication and collaboration skills, with experience working effectively within Agile, cross-functional teams. 

• Experience mentoring and supporting other engineers, contributing to knowledge sharing and continuous improvement across the team. 

• Excellent command of English (written and spoken) 

Nice to Have 

• Experience with Datadog, Braze, or Terraform. 

• Exposure to cloud technologies and modern observability and monitoring practices.