Senior Leader Java Engineer with Kotlin skills

  N-iX is looking for a Lead/Senior Java Engineer with Kotlin skills Engineer to join our team. Our customer is a fintech company that provides flexible buy-now-pay-later solutions, enabling consumers to split purchases into transparent, interest-free, or interest-based payments. The customer's Platform team is responsible for managing critical services that are essential to the success and sustainability of the organisation. In simple terms, the team handles transactional communication send-outs to customers via email, SMS, and push notifications. These services demand attention to detail, proactive maintenance, and swift response times to ensure seamless operations. The recent high-priority initiatives include re-architecture/platform modernisation, high availability, and internationalisation efforts; these are vital for our organisation's growth and competitiveness in the market. These initiatives require dedicated expertise and resources to execute efficiently and effectively. Main Responsibilities: 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 that properly consider 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. Role Requirements: 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 a proven ability to deliver significant features using elegant, simple, and extensible designs Strong infrastructure knowledge, including technologies such as AWS, MySQL/DynamoDB, and Kubernetes Proficiency in large-scale codebase management, utilizing a suite of tools and practices that ensure safe and efficient technical changes Experience in operational monitoring, including the use of 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) We offer*: Flexible working format - remote, office-based or flexible A competitive salary and good compensation package Personalized career growth Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) Active tech communities with regular knowledge sharing Education reimbursement Memorable anniversary presents Corporate events and team buildings Other location-specific benefits *not applicable for freelancers

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