Quick Summary
Tray | Senior Data Engineer | Remote E-commerce Platform
Join the technology team responsible for the evolution and sustenance of the Tray e-commerce platform, focusing on performance, quality, and security across the purchase flow, virtual store management, and integrations.
We are seeking a technically mature professional with a systemic view of software engineering, deep expertise in data modeling (SQL and NoSQL), and experience in high-scale environments, focusing on resolving integration bottlenecks and achieving results.
Key Responsibilities
Daily tasks include:
- Architecting and constructing data pipelines.
- Consolidating heterogeneous data sources into a centralized repository.
- Ensuring secure, governed, and low-latency data flow to support strategic decisions.
Specific responsibilities:
- Build ingestion and ETL/ELT processes to centralize data from various scopes (Store, Purchase Flow, Backoffice, and Integrations).
- Model and structure the Data Lake, ensuring logical and performant connections between information from different services.
- Collaborate with product teams to map events and guarantee data integrity at the source.
Required Skills & Qualifications
- Advanced domain in relational databases, specifically MySQL and PostgreSQL (including tuning, modeling, and extraction).
- Knowledge of messaging systems and distributed queues, such as Kafka and RabbitMQ, for large-scale event processing.
- Experience with distributed processing (e.g., Spark) and relational and non-relational databases.
- Proficiency in programming languages (PHP desirable).
- Experience with Cloud technologies (AWS, GCP, or Azure).
Preferred Qualifications
- Experience as a Data Engineer in E-commerce or FinTech environments.
- Knowledge of Infrastructure as Code (Terraform or CloudFormation).
- Cloud or Data Engineering Certifications.
Benefits & Perks
- Medical plan and Dental plan.
- Meal voucher or food voucher.
- Daycare assistance.
- Transportation voucher or home office assistance.
- Profit sharing program (PPR).
- Day Off on birthday month.
- Life insurance.
- Wellhub.
- Férias&Co (travel benefit).
- Maternity leave (6 months) and paternity leave (20 days).
- Flexible hours (40 hours weekly).
- #Secuida - Quality of Life Program.
- Partnerships in education, health, leisure, and entertainment.
- Complimentary LWSA products.
Office Amenities (Marília/SP)
- Seasonal fruits daily.
- Coffee and cappuccino machine.
- Decompression spaces (game rooms, video games, TV room, canteen, barbecue area, study room, mini library).
- Parking.
LWSA is an ecosystem of digital solutions committed to transforming businesses through technology. We value autonomy, respect, and diversity. All vacancies are eligible for all people, including those with disabilities (PcDs), regardless of gender, ethnicity, or orientation.

