Java/Kotlin Web Developer (Back-End)

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8 months ago

Greece, Attiki, Athens

Full Time

Mid-Level

Hybrid

Basic Information

We are seeking a talented Java/Kotlin Back-End Developer to join our growing team. In this role, you will be responsible for designing, developing, and maintaining high-performance back-end systems for web applications. You will work with cutting-edge technologies to build scalable, secure, and efficient services that power our applications.

Responsibilities

Design, develop, and maintain robust, scalable back-end services using Java and Kotlin.
Build and optimize RESTful and GraphQL APIs for web and mobile applications.
Architect and implement microservices-based solutions with a focus on performance and security.
Integrate third-party services and APIs while ensuring seamless interoperability.
Optimize database performance and manage SQL and NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB).
Implement asynchronous processing, messaging systems, and event-driven architectures using tools like Kafka, RabbitMQ or NATS.
Collaborate closely with front-end developers, DevOps, and other cross-functional teams to deliver high-quality software.
Write and maintain unit tests, integration tests, and performance tests to ensure reliability and stability.
Deploy and manage applications in cloud environments such as AWS, Google Cloud, or DigitalOcean.
Stay up to date with industry trends and best practices to continuously improve development processes.

Requirements

Java

Kotlin

Web Development

2+ years of experience in back-end development.
Strong proficiency in Java and Kotlin (Spring Boot, Quarkus).
Solid understanding of the Spring ecosystem (Spring Boot, Spring Security, Spring Data, etc.) and Quarkus ecosystem.
Experience with microservices architecture and distributed systems.
Strong knowledge of database design and management with SQL and NoSQL databases.
Familiarity with Docker, Docker Swarm, Kubernetes, and CI/CD pipelines.
Experience working with authentication and authorization mechanisms such as OAuth 2.0 and JWT.
Knowledge of multithreading, concurrency, and asynchronous programming.
Understanding of cloud platforms and services (AWS, GCP, or DigitalOcean).
Strong analytical and problem-solving skills with a focus on performance optimization.
Experience working in an Agile/Scrum environment.

Benefits

Continuous education

Work equipment (ex. phone, laptop etc)

Competitive salary with performance-based bonuses.
A remote-friendly and flexible work environment.
Opportunities for professional growth, mentorship, and learning.

Good to have

Experience with functional programming concepts.
Familiarity with gRPC, WebSockets, and Serverless computing.
Familiarity with event-driven architectures and message queues (Kafka, RabbitMQ, or NATS).
Understanding of domain-driven design (DDD) and event-driven architecture.
Contributions to open-source projects or personal projects demonstrating technical skills.

Java/Kotlin Web Developer (Back-End)

Basic Information

Responsibilities

Requirements

Benefits

Good to have

About the company

About the company

Java/Kotlin Web Developer (Back-End)

Basic Information

Responsibilities

Requirements

Benefits

Good to have

About the company

About the company