Senior Leader Kotlin Engineer

N-iX is a global software development company founded in 2002, connecting over 2,400+ tech professionals across 40+ countries. They deliver innovative technology solutions in cloud computing, data analytics, AI, embedded software, IoT, and more to global industry leaders and Fortune 500 companies. The client is a fintech company providing flexible buy-now-pay-later solutions with a Platform team managing critical transactional communication services via email, SMS, and push notifications. The team is focused on re-architecture, platform modernisation, high availability, and internationalisation efforts.

• At least 5 years of proficiency in Kotlin with extensive experience designing, developing, and launching backend systems at scale.
• Deep experience with distributed systems and high-availability architectures.
• Experience in technical leadership in system design with ability to deliver significant features using elegant, simple, and extensible designs.
• Strong infrastructure knowledge including AWS, MySQL, DynamoDB, and Kubernetes.
• Proficiency in managing large-scale codebases with tools and practices ensuring safe and efficient technical changes.
• Experience in operational monitoring using metrics and tracing to maintain system health.
• Excellent collaboration skills for effective partnership with global, cross-functional engineering teams.
• Well spoken and written knowledge of the English language (C1).

• Design and develop a robust and extensible Kotlin framework and platform.
• Own and deliver quarterly goals by leading engineers through ambiguity to solve open-ended problems while ensuring team support throughout delivery.
• Collaborate across the product development lifecycle with product management, design, and analytics to participate in ideation and articulate technical constraints.
• Drive decision-making and risk assessment by partnering on strategic technical choices considering trade-offs and business impact.
• Proactively identify and resolve systemic issues across projects, processes, and technology, advocating for and leading the implementation of solutions.
• Ensure operational excellence and availability by creating and monitoring metrics, supporting "keep the lights on" efforts, and participating in an on-call rotation.
• Foster a culture of quality and ownership by setting high standards for code reviews and design, and advocating for best practices through technical writing and talks.
• Mentor engineering talent by providing actionable feedback, guidance, and leading by example to grow the team's capabilities.

N-iX Krakow, ​Zabłocie Business Park business centre, Zabłocie 43A, 30-70.