Backend Java Tech Lead – Payment Platforms (Remote)

Description

Job Summary: We are seeking a Backend Technical Lead / Tech Lead to lead a development team and actively participate in technical design and decision-making. Key Highlights: 1. Technically lead a backend development team (3–5 people). 2. Design and develop microservices in Java with Spring Boot. 3. Participate in the evolution of payment platforms. We are expanding our team! Azertium IT is looking for you! We urgently need a Backend Technical Lead / Tech Lead with at least 5 years of experience in the role and in the IT sector to join our team — offering significant challenges, a strong track record, and professional growth. Work mode: 100% REMOTE. The selected candidate will technically lead a development team (3\-5 people), actively participating in development and technical decision-making within a critical systems environment handling high data volumes. Responsibilities: * Technically lead a backend development team (3\-5 people). * Design and develop microservices in Java with Spring Boot. * Actively participate in coding and provide technical support to the team. * Define technical solutions and development best practices. * Design and implement REST APIs (JSON). * Work with PostgreSQL databases (modeling, queries, optimization). * Participate in the evolution of payment platforms and card issuance systems. * Collaborate on designing scalable solutions in high-availability and high-performance environments. Minimum Requirements: * Minimum 5 years of backend development experience with Java. * Experience with Spring Boot and microservice architecture. * Prior experience as a Tech Lead or technical team leader. * Experience working with REST APIs. * Solid knowledge of PostgreSQL (queries, modeling, performance). * Experience in high-volume, mission-critical environments. * Experience in payment systems or financial systems (issuance, reconciliation, clearing). Preferred Qualifications: * Knowledge of .NET Core. * Experience with API Gateways (e.g., WSO2 or others). * Experience in API security (OAuth2, OIDC, JWT). * Experience with messaging/event systems (Kafka, RabbitMQ). * Experience with Docker and Kubernetes. * Experience with CI/CD and DevSecOps practices. * Experience with advanced testing (integration tests, contract tests). Employment Conditions: * Permanent contract with Azertium IT. * Stable, long-term project. * Professional training and development