Data Engineer

  • İstanbul, Turkey
  • Launch
  • Full-Time

Data Engineer
Location: Istanbul, Turkey 

Who You’ll Work For

REEF’s mission is to connect the world to your block. 

We transform underutilized urban spaces into neighborhood hubs that connect people to locally curated goods, services, and experiences.

With an ecosystem of 4,500 locations and a team of 15,000 people, REEF is the largest operator of mobility, logistics hubs, and neighborhood kitchens in the US, Canada and a growing presence in Europe. 

Together we are leveraging the power of proximity to keep our communities moving forward in a sustainable and thoughtful way.


What You’ll Do

The Reef Analytics team is looking for a savvy Data Engineer to join our growing team of analytics experts. The hire will be responsible for expanding and optimizing our data and data pipeline architecture, as well as optimizing data flow and collection for cross functional teams. The ideal candidate is an experienced data pipeline builder and data wrangler who enjoys optimizing data systems and building them from the ground up. The Data Engineer will support our developers, database architects, data analysts and data scientists on data initiatives and will work closely with our Engineering team to ensure optimal data delivery architecture is consistent throughout ongoing projects. They must be self-directed and comfortable supporting the data needs of multiple teams, systems and products. The right candidate will be excited by the prospect of optimizing or even re-designing our company’s data architecture to support our next generation of products and data initiatives.​

​Duties and Responsibilities​

  • ​Create and maintain optimal data pipeline architecture,​
  • Assemble large, complex data sets that meet functional / non-functional business requirements.
  • Identify, design, and implement internal process improvements: automating manual processes, optimizing data delivery, re-designing infrastructure for greater scalability, etc.​
  • Build the infrastructure required for optimal extraction, transformation, and loading of data from a wide variety of data sources using SQL and AWS ‘big data’ technologies.​
  • Build analytics tools that utilize the data pipeline to provide actionable insights into customer acquisition, operational efficiency and other key business performance metrics.​
  • Work with stakeholders including the Executive, Product, Data and Design teams to assist with data-related technical issues and support their data infrastructure needs.​
  • Keep our data separated and secure across national boundaries through multiple data centers and AWS regions.​
  • Create data tools for analytics and data scientist team members that assist them in building and optimizing our product into an innovative industry leader.​
  • Work with data and analytics experts to strive for greater functionality in our data systems.​


What We Want From You:

  • Advanced working SQL knowledge and experience working with relational databases, query authoring (SQL) as well as working familiarity with a variety of databases.​
  • Advanced knowledge of the Hibernate Query Language (HQL) and its object-relational mapping and caching.​
  • Experience building and optimizing ‘big data’ data pipelines, architectures and data sets.​
  • Experience performing root cause analysis on internal and external data and processes to answer specific business questions and identify opportunities for improvement.​
  • Strong analytic skills related to working with unstructured datasets.​
  • Build processes supporting data transformation, data structures, metadata, dependency and workload management.​
  • A successful history of manipulating, processing and extracting value from large disconnected datasets.​
  • Working knowledge of message queuing, stream processing, and highly scalable ‘big data’ data stores.​
  • Strong project management and organizational skills.​
  • Experience supporting and working with cross-functional teams in a dynamic environment.​
  • We are looking for a candidate with 5+ years of experience in a Data Engineer role, who has attained a Graduate degree in Computer Science, Statistics, Informatics, Information Systems or another quantitative field. They should also have experience using the following software/tools:​
  • Experience with big data tools: Hadoop, Spark, Hive, Hbase, Kafka, etc.​
  • Experience with relational SQL and NoSQL databases, including Postgres and Cassandra.​
  • Experience with data pipeline and workflow management tools: Azkaban, Luigi, Airflow, etc.​
  • Experience with AWS cloud services: EC2, EMR, RDS, Redshift​
  • Experience with Cloudera Data Platform​Experience with stream-processing systems: Storm, Spark-Streaming, etc.​
  • Experience with object-oriented/object function scripting languages: Python, Java, C++, Scala, etc.​

REEF Technology is an equal opportunity employer, and we value diversity at our company. REEF does not discriminate on the basis of race, religion, color, sex, national origin, gender identity, gender expression, sexual orientation, age, marital status, veteran status, or disability status. REEF complies with all applicable equal employment opportunity legislation in each jurisdiction in which it operates.