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Java Technical Lead

Lisboa

Job description

You will be responsible for leading the design, development, and delivery of Java-based applications while guiding engineering teams on technical best practices.

Act as the technical focal point of the project
Maintain and evolve the cloud-native architecture of the solution, based on microservices, APIs, and event-driven patterns, ensuring cloud agnosticism and support for Active-Active topologies, with a critical and constructive mindset
Ensure that developments are aligned with the defined architecture, from solution design through to production deployment
Conduct regular code reviews, promoting engineering best practices, clean code, and automated testing, ensuring overall solution quality
Define and manage technical debt, prioritizing critical fixes and refactoring initiatives
Ensure non-functional quality attributes, including performance, resilience, security, observability, and platform scalability
Support the design of high-availability strategies (active-active), data consistency, and disaster recovery
Promote technical documentation (architecture, decisions, standards, development guidelines) and ensure its continuous update

Requirements

Expertise in Java: deep knowledge of Java (recent versions) and solid experience with Spring Boot (ideally also Spring Cloud).
Cloud-Native Architect: proven experience in designing distributed systems, microservices patterns, event-driven architectures, containers, and container orchestration.
Strong knowledge of microservices management and patterns (circuit breaker, saga, retries, API gateway, service discovery, observability patterns, service mesh, REST, gRPC, etc.).
Practical experience with event-driven architectures and messaging/streaming technologies (Pulsar, Kafka, RabbitMQ, or similar technologies for asynchronous processing).
Knowledge of active-active topologies, geo-distribution, fault tolerance, and high-availability design.
Experience with distributed databases and database engines (SQL and/or NoSQL), as well as data consistency models (eventual consistency, strong consistency, compensation patterns).
Solid understanding of application and API security (authentication/authorization, OAuth2/OpenID Connect, secrets management, hardening).
Experience with Continuous Integration/Continuous Delivery (CI/CD) tools and DevOps practices.

Nice to Have:

Experience in migration projects from legacy systems to cloud-native architectures.
Experience with observability (centralized logging, metrics, distributed tracing) and SRE practices.
Previous experience with payment solutions, instant payments, or mission-critical financial systems.
Knowledge of standards and formats in the payments domain (e.g., ISO 20022, SEPA Instant).
Certifications in Cloud and/or Cloud Architecture and/or Kubernetes.

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