Lead Software Engineer (Frontend)

Kingfisher is a large home improvement company with over 74,000 employees and multiple brands including Castorama, B&Q, Screwfix, Brico Dépôt, and Koçtaş. The role is within the Colleague Commerce team, which builds tools for store colleagues to handle customer orders, queries, and in-store online ordering. The position involves leading the technical delivery of a major rewrite of the DotCom Plus platform, a greenfield rebuild planned for rollout from early 2027.

• Proven experience designing and delivering complex frontend solutions and distributed systems
• Strong frontend expertise with JavaScript and React (TypeScript preferred)
• Experience with Node.js for backend or server-side components
• Solid understanding of microservices architecture, REST APIs, JSON, and GraphQL
• Hands-on experience with frontend testing and automation (e.g., Playwright, Jest, Cypress)
• Experience building and maintaining CI/CD pipelines and deployment automation
• Good knowledge of web architecture, performance optimisation, and web server technologies
• Strong SQL skills and familiarity with validating data flows across integrated systems
• Excellent communication and stakeholder management skills
• Excellent command of English (written and spoken)

Nice to have:

• Experience with AWS and cloud-native patterns
• Familiarity with Kafka or event-driven architectures
• Prior exposure to retail/e-commerce platforms, especially ATG/DotCom ecosystems
• Experience with Remix or other modern frameworks and server-side rendering patterns
• Background in observability, performance testing, and reliability engineering

Lead system design and architecture:

• Lead system design and architecture for frontend and service interactions, ensuring solutions are scalable, maintainable, and aligned with microservices principles
• Own technical direction for the squad: set standards, review designs, and drive decisions balancing short-term delivery with long-term maintainability
• Mentor and coach engineers, fostering growth, code quality, and a culture of continuous improvement
• Collaborate cross-functionally with backend engineers, product managers, designers, and operations to define product vision and delivery plans
• Champion frontend quality: testing, performance, accessibility (WCAG), and reliable CI/CD pipelines
• Drive improvements in development lifecycle, observability, deployment practices, and incident response for a mission-critical system
• Represent the team to stakeholders, communicating technical trade-offs, progress, and risks clearly

Kingfisher ensures equal treatment of all colleagues and applicants regardless of age, gender, marital or civil partnership status, colour, ethnic or national origin, culture, religious or philosophical belief, political opinion, disability, gender identity, gender expression, or sexual orientation. The role offers flexible and agile working with a blend of home and office work in Kraków.