Senior Java Developer

Ciklum

Remote, Czech Republic

About the role

As a Senior Java Developer, become a part of a cross-functional development team engineering experiences of tomorrow. You will join a highly motivated team and will be working on a modern solution for our existing client. We are looking for technology experts who want to make an impact on new business by applying best practices and taking ownership.

Our client is a sports betting company, who would like to manage their content with a “Plug and Play” approach. The project team consists of 200+ engineers working on different enhancements of our sport betting products. The project uses the latest stable technologies like Java, React and others.

Responsibilities

Back-end development to meet customer’s business needs and implement components according to modern software development environment
Taking part in the decision-making process in application code design, solution development, code review
Develop and review feature design documents and provide inputs/update to specifications for the solution
Design and implement a set of various types of tests (unit, integration, functional, etc)
Proactive position in solution development, processes improvements
Working in an international distributed team in an Agile environment
Using high coding standards, software best practices and writing highly testable, automatable and performant code over the whole SDLC

Requirements

Strong practical experience in Java, 6-10 years
Strong knowledge in Computer Science, Computing Theory:
- Paradigm & Principles (OOP, SOLID)
- Database theory (RDBMS)
- Code testing practices
- Algorithms
- Data structures
- Design Patterns
Understanding of network interactions:
- protocols
- conventions (e.g. REST, RPC)
- authentication and authorization flows
- standards and practices (e.g. oAuth, JWT)
Practical commercial experience with:
- REST API development
- Web application frameworks (e.g. Spring Boot Framework) (more than 3 years)
- Testing frameworks (e.g.e.g. JUnit, Mockito, PowerMock, WireMock) (more than 3 years)
- ORM (e.g. Hibernate) (more than 1 year)
- RDBMS (e.g MySQL/MariaDB, PostgreSQL) (more than 3 years)
- Web Servers
- Version control systems (GIT)
- Docker
- Continuous Integration tools: Jenkins
Experience with:
- Cloud solutions: AWS
- Agile software processes and technologies
Brief familiarity with Frontend development:
- JavaScript, React or Angular
Upper-Intermediate English

Desirable

Knowledge in:
- TDD, BDD
- Architectural, Enterprise Patterns
- Security patterns, Common attacks types (OWASP)
- Deployment patterns
Experience with:
- Troubleshooting, profiling and debugging applications
- Microservices
- Terraform, Helm, and Infrastructure as Code
Practical commercial experience with:
- Key-value storages (e.g. Redis, Memcached)
- Messaging systems (e.g. Apache Kafka, AWS SQS)
- Serverless architecture
- Integration with 3rd party solutions
- NoSQL (e.g. MongoDB, ElasticSearch, CouchDB)
- Search Engines (e.g. ElasticSearch )
- Quality tools (e.g. SonarQube)
- Good understanding of Docker, Kubernetes, and CI/CD pipelines