2 months ago
Lisbon, PortugalSenior
Responsibilities
- Improve core search algorithms, user-query understanding, product relevance, and search functionality.
- Develop AI/ML support for order-related user questions using context from orders, profiles, transactions, and service activity.
- Automate refunds through AI/ML systems.
- Perform raw data analysis, formulate hypotheses, create models, run experiments, and deploy results into production.
- Develop and debug distributed, high-load applications and write testable code.
Requirements
- Strong algorithmic skills, including fundamental algorithms, data structures, and their implementation in standard libraries.
- Proficiency in at least one programming language.
- Experience developing and debugging distributed, high-load applications.
- Industry machine learning experience, including modeling and training approaches such as linear models, GBDT, and DNN.
- Knowledge of statistics and end-to-end machine learning development.
- Preferred: experience developing recommendation or search systems.
- Preferred: experience training neural network models.
- Preferred: experience with Spark, Cassandra, MongoDB, and Kafka.
- Preferred: knowledge of Go.
Benefits
- Office-first work arrangement with flexible hours and the possibility of working remotely 52 days per year.
- Health insurance including dental care for employees and their children, daily meal allowance, and 100% paid sick leave.
- Full relocation assistance for employees and their families.
- Licenses and access to a wide range of AI tools.
- Opportunities for promotion, professional training, and English and Portuguese courses.
- Collaboration across Portugal, Brazil, Latvia, and China, plus annual team-building activities and knowledge-sharing workshops.
- Base salary and performance-based bonuses are offered, with no specific compensation amount stated.
Tech Stack
Apache AirflowApache CassandraApache KafkaApache SparkDockerGoJenkinsKubernetesMongoDBPythonPyTorchScala
Categories
About Joom
Joom Group builds e-commerce products for global trade, including Joom, a cross-border consumer marketplace; JoomPro, a B2B importing marketplace; JoomPulse, analytics for Mercado Livre sellers; and Onfy, a German pharmaceutical marketplace. Founded in 2016 in Riga and privately held, the company moved its headquarters to Lisbon in 2023 and operates across Europe, the Americas, and China. Revenue comes from marketplace commissions, services for sellers, and related transaction fees.