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.
- Adaptable compensation with health insurance, meal vouchers, childcare, and transportation.

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📌 Java Developer + Data Analysis (Madrid)
🏢 Plexus Tech
📍 Madrid