Senior Big Data developer

Joom
Pulse is an AI analytics tool for Mercado Livre sellers, providing insights into the most profitable products and
- growing categories — helping sellers boost their profits with
- driven decisions.

Joom
Pulse is one of the key businesses of Joom Group, an international tech‑centric group of e‑commerce companies that was founded in 2016 in Latvia. Joom Group also includes the following businesses: Joom, a global cross‑border marketplace; Joom
Pro, the first and only end‑to‑end cross‑border B2B marketplace; and Onfy, a pharmaceutical marketplace in Germany. Joom Group has offices in Latvia, China, Germany, and Brazil, with its headquarters in Lisbon, Portugal. We work as one international team, sharing knowledge and collaborating across countries, businesses and products.

We are currently looking for Senior Data Engineer to join Joom
Pulse team.

Responsibilities

• Writing ETL processes using Spark, Py
  Spark, SQL
• Designing data warehouse architecture
• Assisting in preparing analytical reports
• Technical elaboration of features based on data

Requirements

• Proficient in advanced SQL
• Familiarity with data modeling (dimensional modeling, star/snowflake schemas, etc. )
• Experience with analytical databases (Big
  Query, Click
  House, Snowflake, etc. )
• Experience with Apache Spark (Py
  Spark, Spark SQL)
• Experience completing large and complex projects

Preferred

• Familiarity with cloud platforms (AWS, GCP, Azure, etc. )
• Familiarity with ETL process schedulers (Airflow, Prefect, etc. )
• Practical experience with Python

We welcome candidates from related fields (backend/DWH/ML) who are interested in becoming Data Engineers

We offer

• Compensation package: base salary and performance‑based bonuses
• Office‑first: flexible hours with a possibility to work remotely 52 days per year
• Care & Wellbeing: health insurance (including dental care) for employees and their children, daily meal allowance, and 100% paid sick leave
• Relocation Support: full assistance for a smooth relocation for the employees and their family
• Team & Growth: collaboration with colleagues across Portugal, Brazil, Latvia and China, with opportunities for promotions, professional trainings, and English & Portuguese courses
• Community & Engagement: annual team building activities, knowledge‑sharing workshops, and a strong sense of team work

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