Java Software Engineer

Wizeline

Barcelona, Spain

5 days ago

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Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Working hours

Regular working hours

Job source

startup.jobs

Tech stack

Application Programming Interfaces (APIs) Artificial Intelligence Amazon Web Services Automation of Tests Microsoft Azure Configuration Management Profiling Dependency Injection Distributed Systems Memory Management Monitoring of Systems Java Persistence API

+18 more

Spring Framework Junit Performance Tuning Mockito Prometheus Data Processing Multithreading Cloud Platform System Istio Grafana Spring Data Integration Tests Kubernetes Deployment Automation Restful APIs Docker Jenkins Microservices

Requirements

Java (11/17/21) - Deep understanding of multithreading, memory management, performance optimization, and concurrent data processing.
Spring & Spring Boot - Expertise in building RESTful APIs, dependency injection, configuration management, and Spring Data/JPA integration.
Microservices Architecture - Experience designing and maintaining distributed systems using service mesh patterns (Istio) with Docker and Kubernetes.

Infrastructure & DevOps

Strong understanding of CI/CD pipelines (e.g., Jenkins), automated testing, and environment management (staging, prod, integration).
Experience with container orchestration, deployment strategies (blue/green, rolling updates), and monitoring tools (Prometheus, Grafana).
Working knowledge of cloud environments (AWS or Azure)

Testing & Quality

Proficiency with JUnit, Mockito, and integration testing frameworks.
Ability to design and maintain automated API tests and validation suites within CI/CD pipelines.
Experience defining performance metrics, profiling, and resolving bottlenecks in large-scale systems.

Nice-to-have:

AI Tooling Proficiency: Leverage one or more AI tools to optimize and augment day-to-day work, including drafting, analysis, research, or process automation. Provide recommendations on effective AI use and identify opportunities to streamline workflows.

About the company

Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact.