Demo

Senior Spark & Python Developer

Mavens Guild
Mc Lean, VA Contractor
POSTED ON 10/11/2026
AVAILABLE BEFORE 12/11/2026

What we would like to see:

In a senior developer role, you will design and build data flow and data integration processes to enhance loss prevention technologies for a leading financing firm. Drawing from your vast hands-on experience in Python (PySpark), Spark, REST, Java, and Scala, you will develop, test, and deploy end-to-end solutions using full-stack development tools within AWS (EMR, S3) cloud based infrastructure.

A typical day as a Senior Spark Programmer:

  • Develop fault tolerant, streaming as well as batch data integration processes using Spark/PySpark, Java and performance enhanced SQL

  • Develop and lead development efforts of application programming interfaces to enable integration of fraud detection systems with a host of new reporting and data mining tools

  • Design and develop automation of data flow tasks and end-to-end process testing

  • Design and develop scalable frameworks to ingest, transform, store, and present loss prevention information to downstream systems

  • Implement and lead implementation of Agile best practices and a continuous integration ecosystem

  • Implement and lead implementation efforts of Spark/Python based solution architecture, scalable process frameworks, advanced analytics, and responsive RESTful services

What you will need to bring to the table:

  • 5 years experience with processing of structured, unstructured and semi-structured data using in-memory cluster computing technologies, specifically with Spark

  • 5 years experience as a Java programmer

  • 3 years experience programming in Python (PySpark API)

  • 3 years experience with cloud services offered through AWE, like EMR, Redshift, or S3

  • 3 years experience in developing, testing and deploying RESTful APIs for high volume data streams

  • Experience with continuous integration tools like Jenkins

  • Experience working in a distributed computing infrastructure like Hadoop and/or Spark

  • Critical and analytical approach to solving technical problems

  • Excellent interpersonal skills and ability to clearly communicate highly technical concepts to business stakeholders and technical developers alike

Salary : $3 - $5

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