Java Developer + Data Analysis
Summary
Build and optimize Java-based backend services with Spring Boot and SQL, plus ETL pipelines and BI reporting using Pentaho and Apache NiFi.
Overview
Join Plexus Tech. We are looking for a programmer with 3 years of experience in Java development and familiarity with data analysis.
Responsibilities
- SQL query optimization
Requirements
- General Requirements
- Vocational training in Computer Science or higher
- Minimum 3 years experience in a similar position
- Ability to work in a team, with a willingness to learn.
- Intermediate English (Highly desirable).
Programming Language
- Java (Java SE and EE)
Framework Knowledge
- Spring / Spring Boot
- Hibernate / JPA
- Maven / Gradle
Databases
- Relational: PostgreSQL, Oracle
- Schema design and normalization
- SQL query optimization
- Advanced SQL (joins, subqueries, CTEs, window functions)
- Basic knowledge of statistics
Tools
- DBeaver
Data Analysis & ETL
- Extract, Transform, Load (ETL) knowledge
BI Tools
- Pentaho
- Apache NiFi
Complementary Technologies
- Git / GitHub / GitLab
- RESTful APIs and web services
- Testing: JUnit, Mockito
- Technical documentation (Swagger, OpenAPI)
- Agile methodologies (Scrum, Kanban)
Benefits
- Hybrid model: work from any of our 24 work centers in Spain, from home, or a combination.
- Collaborative environment within the company.
- Work with leading professionals.
- Access to ongoing training.
- Professional development opportunities.
- Flexible compensation with health insurance, meal vouchers, childcare, and transportation.