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.

Find out more about our culture here.