Senior Backend Engineer - Porto - 30/10/26

Wafx; Porto; Hybrid; EUR 60,000 - 80,000; Full time

Benefits offered by this job

Laptop provided

Hybrid work model in Porto

Job summary

Wafx in Porto is seeking a Senior Backend Engineer to design, develop and operate scalable backend solutions. You will work with Java, Spring Boot, microservices, REST APIs, and event-driven architectures, taking ownership and contributing to architecture and delivery.

You'll collaborate with cross-functional teams, translate business requirements into robust backend services, ensure security and performance, and drive CI/CD practices using Docker, Kubernetes and Azure.

Qualifications

• 5+ years of backend engineering experience.
• Proven Java/Spring Boot microservices in cloud-native environments.
• Experience delivering complex backend solutions with cross-functional teams.
• Strong understanding of the full software development lifecycle and product-oriented development.
• Experience with distributed systems, microservices architectures, API lifecycle management, and event-driven integrations.
• Ability to balance security, reliability, performance, maintainability, and delivery objectives.
• Strong stakeholder management and collaboration across technical and business teams.

Skills

SDLC understanding

Product-oriented development

Stakeholder management

Cross-functional collaboration

Security considerations

Performance optimization mindset

Tools

Java

Spring Boot

Microservices

REST APIs

Kafka

JUnit

CI/CD pipelines

Git

Azure DevOps

Artifactory

SonarQube

Docker

Kubernetes

Azure

Observability tooling

Job description

Country

PT Portugal

Location

Porto - Hybrid (2x/week in the office)

Senior

Work type

Hybrid

Imediato

1 year

Laptop provided

Yes

Senior Backend Engineer with strong experience in designing, developing, and operating scalable backend solutions. The role focuses on Java, Spring Boot, microservices, REST APIs, and event-driven architectures, combining hands-on technical expertise with ownership, architectural contribution, and continuous delivery practices.

Requirements and qualifications

Years of Experience

• 5+ years of professional experience in backend software engineering.
• Proven experience developing and operating Java and Spring Boot microservices in enterprise or cloud-native environments.
• Experience delivering complex backend solutions and integrations within cross-functional teams.

Functional Skills

• Strong understanding of the full software development lifecycle and product-oriented development.
• Ability to translate business requirements into scalable, resilient, and secure backend solutions.
• Experience with distributed systems, microservices architectures, API lifecycle management, and event-driven integrations.
• Ability to balance security, reliability, performance, maintainability, and delivery objectives.
• Strong stakeholder management and collaboration skills across technical and business teams.
• Experience reviewing technical designs, contracts, and architectural decisions.

Technical Skills

• Strong expertise in Java, Spring, and Spring Boot.
• Proven experience designing and maintaining scalable microservices architectures.
• Extensive experience with REST API design, security, versioning, documentation, and performance optimization.
• Strong knowledge of event-driven architectures and Apache Kafka integrations.
• Experience with automated testing frameworks such as JUnit.
• Hands-on experience with CI/CD pipelines, Git, Azure DevOps, Artifactory, SonarQube, and code review practices.
• Experience with Docker and Kubernetes.
• Experience building and operating applications in Microsoft Azure.
• Understanding of observability, troubleshooting, monitoring, and production operations.

Certifications

• Java, Spring, Software Architecture, Kubernetes, or Microsoft Azure certifications are considered an advantage.