Lead Developer

At Aevi, we’re a global community dedicated to innovation in the payments industry. We’re looking for a Lead Developer who combines hands‑on software engineering with technical leadership and people development. What you'll be doing: Lead the design, development and evolution of cloud‑native backend services built with Java and Kotlin. Contribute hands‑on to coding, architecture discussions and solution design. Own the full software development lifecycle, from design and implementation through to deployment and production support. Drive engineering excellence through code reviews, testing practices and continuous improvement. Ensure services remain scalable, resilient, secure and observable. Collaborate closely with Architects, Principal Developers and Product teams to shape technical direction and delivery priorities. Mentor and support software engineers in their technical and professional growth; provide regular feedback, coaching and development guidance. Help developers prioritise work and focus on the highest‑value initiatives. Support hiring, onboarding and capability building within the team. Take ownership of the operational health of the services your team supports; monitor performance, reliability and production behaviour; lead incident investigations and root‑cause analysis. Partner with Product, QA, DevOps, Architecture and other engineering teams to deliver high‑quality outcomes and facilitate technical discussions. Champion improvements across engineering processes, tooling and ways of working. What we are looking for: Essential Experience 7+ years of professional software engineering experience. Strong experience building backend applications using Java and Kotlin. Previous experience leading or mentoring software engineers. Hands‑on experience delivering production systems in cloud environments. Strong understanding of software design principles and engineering best practices. Experience working across the full software development lifecycle. Excellent problem‑solving and communication skills. Fluent English, both written and spoken. Technical Expertise Java (17/21) and Kotlin. Spring Boot and modern backend frameworks. Reactive and asynchronous programming concepts. AWS services and cloud‑native architectures. Containerisation technologies such as Docker. Infrastructure as Code (Terraform or AWS CDK). Relational and NoSQL databases. Event‑driven and distributed systems. Automated testing and CI/CD practices. Git‑based development workflows. Nice to Have Experience within payments, fintech or banking environments. Familiarity with payment protocols such as ISO 8583, IFSF or NEXO. Knowledge of PCI DSS requirements. Experience with HSM integrations and cryptography concepts. Experience with observability tooling and operational excellence practices. Contributions to technical communities, open‑source projects or meetups. In this role, you'll: Deliver robust and scalable payment services used globally. Help engineers do their best work and grow in their careers. Improve the reliability and operational maturity of the platform. Influence technical direction through pragmatic leadership. Create an environment where teams can move fast without compromising quality. Additional Information Hybrid working model based from our Czech Republic office. Choose the setup that works best for you – Mac, Windows or Linux. Occasional involvement in production support activities during business hours may be required. This role operates within a PCI DSS‑regulated environment and follows secure development practices. #J-18808-Ljbffr AEVI