Middle Backend Java Developer to $4500

“CodeSmart” Software Engineering Artel is looking for a Middle Backend Java Developer to join our growing team. Under the supervision of the Engineering Manager, you will be responsible for designing, implementing, and maintaining scalable microservices for non-game products. You will work closely with cross-functional teams to ensure seamless integration, robust performance, and top-notch reliability in our applications.

What You Will Do

• Design & Implement Microservices using Java (8+) and Spring Boot frameworks, ensuring high performance and reliability.
• Collaborate with Cross-Functional Teams (QA, Product, DevOps) to troubleshoot, refine requirements, and deliver robust solutions.
• Develop Database Interactions using JDBC, JPA, and modern persistence frameworks.
• Containerize services using Docker and Kubernetes for highly scalable deployments.

Must-Have Requirements

1. Core Java
   • Solid understanding of types, classes, exceptions, collections, and concurrency (multithreading).
   • 4+ years of commercial experience with Java (version 8+).
2. Design Patterns & Refactoring
   • Proven ability to apply common design patterns (e.g., Singleton, Factory, Observer, Strategy)
   • Experience in refactoring legacy code to improve maintainability and performance.
3. Database + JDBC + JPA
   • Familiar with DDL and DML operations, table relationships, and ACID properties.
   • Experience with JDBC: statement, prepared statement, callable statement.
   • Understanding of JPA: entities, EntityManager, EntityManagerFactory, and uni-/bi-directional relationships.
4. Spring Ecosystem
   • Spring Core (DI, IoC): Clear understanding of dependency injection and inversion of control.
   • Spring Security: Basic authentication/authorization principles and secure REST APIs.
   • Spring AOP: Familiarity with aspect-oriented programming for cross-cutting concerns.
   • Spring Data: Experience with Spring Data JPA or similar for data access.
   • Spring Integration: Knowledge of enterprise integration patterns within Spring.
   • Spring Web (Servlet API + Filters): Building RESTful services and handling web requests.
   • Spring Cloud: Familiarity with service discovery, configuration, and distributed tracing.
5. Netflix OSS
   • Hands-on experience with Eureka, Ribbon, Hystrix, etc. for service discovery, client-side load balancing, and resilience.
6. Docker & Kubernetes
   • Ability to containerize applications using Docker.
   • Deploy microservices on Kubernetes (k8s) for orchestration at scale.
7. CI/CD Pipelines
   • Proficiency with automated build and deployment pipelines (e.g., Jenkins, GitLab, GitHub Actions).
8. AWS Cloud Services
   • Practical experience with AWS (EC2, S3, RDS, or other services) to host and manage applications.

Nice to Have

• Monitoring & Logging: Experience with Prometheus, Grafana, ELK stack, or similar.
• Testing Best Practices: Familiarity with TDD/BDD frameworks like JUnit, Mockito, Cucumber.
• Security & Performance: Basic knowledge of securing REST APIs and performance tuning in distributed environments.
• Analytical Mindset: Strong debugging and problem-solving attitude to optimize system performance and reliability.

Why Us

• Cutting-Edge Technologies: Work with a multi-national team of experienced software engineers building high-demand, high-tech products.
• Full Remote Work: Enjoy the flexibility of working from anywhere—offices available in Lisbon and San Francisco if you prefer on-site.
• Result-Driven Organization: Outcomes over processes—no micromanagement, just the freedom to deliver great solutions.
• Flexible Working Hours: Define a schedule that best fits your productivity.
• Competitive Compensation: We offer a market-leading salary and benefits package.