Senior Java Developer

Senior Java Developer

We are

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.

With the right people and the right ideas, there´s no limit to what we can achieve.

Are you a fit?

Sounds awesome, right? Now, let´s make sure you´re a good fit for the role:

We are looking for a Senior Java Developer to design, build, and scale high-performance backend systems in a modern, cloud-native environment. In this role, you will work on distributed, mission-critical applications, collaborate with cross-functional teams, and contribute to architectural decisions that impact product scalability, reliability, and performance.

Key Responsibilities

• Design, develop, and maintain scalable, high-performance backend services using Java (11/17/21) and Spring Boot.
• Build and evolve RESTful APIs and microservices following best practices for reliability, security, and maintainability.
• Design and support distributed systems and microservices architectures, leveraging Docker, Kubernetes, and service mesh patterns (e.g., Istio).
• Collaborate with DevOps and platform teams to implement and improve CI/CD pipelines, deployment strategies, and environment management.
• Optimize application performance through profiling, monitoring, and tuning of memory, concurrency, and data processing.
• Ensure high code quality through unit, integration, and automated testing.
• Participate in architectural discussions and provide technical guidance to peers.
• Troubleshoot production issues and contribute to continuous system improvements.

Must-have Skills

• Bachelor´s Degree in Computer Science, Engineering, or a related field.
• 5+ years of professional experience as a Java Developer or Backend Engineer.
• Advanced knowledge of Java (11/17/21), including multithreading, concurrency, memory management, and performance optimization.
• Strong experience with Spring Framework and Spring Boot, including Spring Data/JPA.
• Hands-on experience designing and maintaining microservices-based architectures.
• Proficiency with Docker and Kubernetes, including deployment and orchestration concepts.
• Solid understanding of CI/CD pipelines (e.g., Jenkins), automated testing, and release management.
• Experience working in cloud environments such as AWS or Azure.
• Strong background in unit and integration testing using JUnit, Mockito, or similar frameworks.
• Experience defining performance metrics, identifying bottlenecks, and resolving scalability issues.
• English level: Advanced / Fluent (spoken and written).

Nice-to-have

• AI Tooling Proficiency: Ability to leverage AI tools to optimize day-to-day work, including code generation, debugging, documentation, analysis, or process automation. Identify opportunities to improve developer productivity using AI.
• Experience with monitoring and observability tools such as Prometheus and Grafana.
• Knowledge of advanced deployment strategies (blue/green, canary, rolling updates).
• Exposure to event-driven architectures or messaging systems (Kafka, RabbitMQ).
• Experience working in agile or DevOps-oriented teams.

What we offer

• A High-Impact Environment
• Commitment to Professional Development
• Flexible and Collaborative Culture
• Global Opportunities
• Vibrant Community
• Total Rewards
• Specific benefits are determined by the employment type and location.