Senior Java Developer

Role Overview

• Develop and maintain microservices, APIs and business logic in Java with Spring Boot, following development best practices and the program's defined guidelines
• Ensure development is aligned with and oriented toward cloud-native and cloud-agnostic technologies, continuously optimizing, monitoring and improving performance while considering volume and the inherent resilience and latency requirements
• Write unit, integration and contract tests
• Support the QA team with test automation
• Participate in the technical design of solutions with architects and in alignment with the defined architecture
• Collaborate with the team (architecture, QA, SRE, security, business) in refinements, planning and code reviews, ensuring that code is secure and observable (logs, tracing, metrics)
• Contribute to technical documentation (services, APIs, relevant technical decisions)
• Analyze incidents and problems in development and QA/certification environments and act as 3rd line support for problem analysis and resolution

Requirements

• Strong proficiency and hands-on experience with Java, including concurrency and memory management concepts
• Experience with Spring Boot and the wider Spring ecosystem (ideally Spring Cloud and other Spring projects)
• Understanding of distributed architectures, communication patterns (synchronous vs asynchronous), REST APIs and failure handling (retries, circuit breakers, fallbacks, idempotency, etc.)
• Knowledge of geo-distributed databases and/or relational and/or NoSQL databases
• Experience with modern development practices (Git, CI/CD, DevSecOps, code review practices, testing with tools such as JUnit, Mockito, Testcontainers)
• Experience in cloud-native contexts (containers, Docker/Podman, Kubernetes, 12-factor apps) and working with high-throughput, low-latency systems
• Knowledge of distributed and event-driven architectures
• Familiarity with geo-distributed databases, NoSQL and NewSQL (e.g., MongoDB, CockroachDB)
• Experience with observability (centralized logging, metrics, distributed tracing) and SRE practices
• Previous experience with payment solutions or mission-critical financial systems
• Knowledge of blockchains and wallets (online and offline)

Tech Stack

• Cloud
• Docker
• Java
• JUnit
• Kubernetes
• Mockito
• MongoDB
• NoSQL
• Spring
• Spring Boot
• SpringBoot

Benefits

• Health insurance
• Flexible working arrangements
• Ongoing training and certifications
• Employee Assistance Program (covering five areas, including psychological support)
• Birthday and long-service benefits
• Monthly happy hour
• Benefits portal with attractive offers