Data Engineer Mid

Technology is transforming the way people travel and were here to drive that evolution from the ground up. In 2014, at MIT, we decided to embark on this journey by focusing on the bus industry. Why? Because its the most widely used mode of transportation in Latin America, with over 10 billion passengers per year 13 times more than air travel.

Yet, only 10% of tickets are currently sold online.

We know thats changing. And we strongly believe that digital sales will soon surpass 50%. Today, Reserhub is becoming the operating system for ground transportation, connecting companies with tech solutions that integrate data, pricing intelligence, and tools to digitalize their operations from ticket sales to revenue management and customer loyalty.

• Help maintain and extend our Data Lake
  , ingesting behavioral data from Mixpanel and processing it in Click House to provide intelligence for our customers and partners.
• Propose and implement ETL pipelines that transform raw event data into structured analytics tables, enabling cohort analysis and customer segmentation.
• Implement and improve data validation and transformation steps to ensure data quality and consistency across our analytics infrastructure.
• Maintain our ticket sales data pipeline
  , tracking transactions from purchase through fulfillment for analytics and reporting.
• Contribute to our messaging infrastructure
  , integrating Whats App Business API to send automated notifications and personalized messages to customers.
• Write and review database migrations and work with Postgre
  
  SQL and Click House.
• Collaborate with product and engineering teams to deliver analytics and personalization features.
• Help monitor the performance of data pipelines and APIs to handle growing volumes of traffic and events.

We re looking for someone with engineering skills in both development and data engineering who shares our core values:

• You care about clean, readable code.
• You enjoy learning new tools and diving into unfamiliar systems.
• You can break down tasks into smaller pieces and communicate progress clearly.
• You write clear PR descriptions, documentation, and messages to teammates.
• You collaborate well and enjoy pair programming and reviewing code.
• You have a mindset for performance and enjoy writing efficient software.

When it comes to technology, you dont need to know it all — just be ready to pick things up fast. Youll fit right in if you have experience in these areas 3+ years of experience:

• Elixir/Phoenix — our primary backend language. Strong understanding of functional programming, OTP, Gen Servers, and building scalable web applications. Experience with Ecto for database interactions.
• Python — for data pipeline development and ETL processes. Experience with data processing libraries and frameworks.
• SQL & Databases — knowledge of Postgre
  
  SQL for transactional workloads.
• Data Engineering — experience building ETL/ELT pipelines, data modeling for analytics, handling data quality, and working with large datasets.

Nice to have:

• Backend Development — REST API design, webhook implementations, background job processing, and microservices architecture.
• Analytics platforms — Experience with platforms like Mixpanel, Segment, or Amplitude.
• Its a bonus if youve worked with tools like One Signal or Fingerprint.
• Experience with Click House.
• Messaging platforms — Experience with messaging APIs like Whats App Business API or SMS providers.
• Cloud Infrastructure — (Google Cloud Storage, Cloud Functions) and understanding of distributed systems.

In our team, everyone works across all of our applications — or at least we try. We share ownership, collaborate closely, and help each other maintain and improve every part of the platform.

We re building a comprehensive data lake that consolidates behavioral data from multiple sources.…