Senior Java Developer

Noesis; Lisboa; Presencial; EUR 55 000 - 75 000; Tempo integral

Resumo da oferta

Noesis is seeking a senior Java developer to design and maintain high-throughput microservices and REST APIs using Spring Boot. You will optimize cloud-native resilience, implement tests and collaborate with cross-functional teams in Lisbon, Portugal.

Join a team focused on observability, performance, and secure, scalable software for mission-critical systems. Excellent communication and problem-solving skills are essential for success.

Qualificações

• Degree in Computer Science or similar.
• 5+ years in Java development with Spring Boot.
• Experience with distributed cloud-native architectures and containers.
• Knowledge of relational, NoSQL or NewSQL databases.
• Experience with CI/CD, DevSecOps and observability tools.
• Excellent communication and teamwork skills.

Responsabilidades

• Develop and maintain Java microservices and REST APIs with Spring Boot.
• Write unit, integration and contract tests; support QA automation.
• Collaborate with architects, SRE and security on design and reviews.
• Perform root-cause analysis and provide L3 production incident support.

Conhecimentos

Java development

Spring Boot

CI/CD

DevSecOps

Observability

Teamwork

Problem solving

Formação académica

Computer Science degree

Ferramentas

Docker

Kubernetes

Podman

JUnit

Mockito

Testcontainers

MongoDB

CockroachDB

Descrição da oferta de emprego

Main Tasks And Responsibilities

Noesis is looking for professionals with the following profile:

• Develop and maintain Java microservices and REST APIs using Spring Boot, focusing on high-throughput, low-latency, and cloud-native resilience;
• Write unit, integration, and contract tests (JUnit, Mockito, Testcontainers) while supporting QA teams in test automation efforts;
• Collaborate with architects, SRE, and security teams on technical design, refinements, code reviews, and observability (logging, tracing, metrics);
• Perform root cause analysis for development/QA environments and act as L3 support for complex production incident resolution.

Profile

• Degree in Computer Science or similar;
• Minimum of 5 years of experience in Java development and core concepts (concurrency, memory management, Spring Boot ecosystem);
• Solid hands-on experience with distributed cloud-native architectures, containerization (Docker/Podman, Kubernetes), and event-driven patterns;
• Strong knowledge of relational, NoSQL, or NewSQL databases (example: MongoDB, CockroachDB) and messaging/resilience patterns (circuit breakers, idempotency);
• Experience with modern CI/CD practices, DevSecOps, and observability frameworks;
• Excellent communication and teamwork skills to collaborate across cross-functional teams (QA, SRE, Business, Security);
• Strong analytical, problem-solving, and continuous improvement mindset for mission-critical and financial systems.

All our recruitment and selection processes are based on equal opportunities, valuing the competence and potential of each person and ensuring that no candidate is discriminated on the grounds of gender, ethnicity, sexual orientation, age, religion or physical condition.

• Job advertisement under Law nr 4 / 2019, of 10th January