Senior ML Engineer

JGT 3; Lisboa; Híbrido; EUR 75 000 - 110 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Health insurance

Hybrid work up to 52 days/year

Relocation support

English & Portuguese courses

Team-building activities

Resumo da oferta

Joom, headquartered in Lisbon, Portugal, is expanding its Marketing Automation team to build and optimize automated marketing workflows, personalized recommendations, and efficient communications. The Senior ML developer will work on distributed, high-load applications using Spark, Scala, Python and Airflow to deliver production-ready models and scalable ML pipelines.

The role offers an office-first culture with flexible remote work up to 52 days per year, health insurance, relocation support,

Qualificações

• Strong algorithmic skills and knowledge of data structures.
• Proficiency in any language and experience in distributed, high-load applications.
• Industry experience in Machine Learning including modeling, training, and deploying results.

Conhecimentos

Algorithmic skills

Distributed systems

ML experience

Ferramentas

Spark

Scala

Python

Airflow

Go

Kafka

Cassandra

Mongo

Descrição da oferta de emprego

Joom is a global cross-border marketplace where millions can find anything they want at fair prices. Joom helps consumers to make shopping easy and entertaining and provides access to interesting and unique goods from around the world.

Joom is one of the key businesses of Joom Group, an international group of tech-centric e-commerce companies founded in 2016 in Latvia. Joom also includes other businesses: JoomPro, the first and only end-to-end cross-border B2B marketplace; JoomPulse, an AI analytics tool for Mercado Livre sellers; 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 looking for Senior ML developers to join our Marketing Automation team.

Marketing Automation team

Marketing Automation team is responsible for automating marketing and optimizing its effectiveness. We are responsible for both external marketing (advertising purchases) and internal marketing (direct communications via push notifications/emails). We provide the infrastructure and tools for effective marketing. Tech stack: Spark, Scala, Python, Airflow, Go.

Requirements

• Strong algorithmic skills: knowledge of fundamental algorithms and data structures, as well as their implementation in standard libraries
• Proficiency in any language: experience in developing and debugging distributed, high-load applications, and writing testable code
• Industry experience in Machine Learning: familiarity with key modeling and training approaches (linear models, GBDT, DNN, etc.), knowledge of statistics, and end-to-end ML development experience, including raw data analysis, hypothesis formulation, model creation, experimentation, and deploying results into production

Preferred

• Experience in developing recommendation or search systems
• Experience training neural network models
• Experience working with various data sources: Spark, Cassandra, Mongo, Kafka
• Knowledge of Go

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
• AI-first approach: licenses and access to a wide range of AI tools
• 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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