Big Data Developer

As a Big Data Developer, you will:

We are looking for big data developers for ETL project in our enterprise Transparency Services group. Big data developer will work on ingesting, storing, validating and disseminating after transforming data in a consumable format for business intelligence teams and data analysts to get deeper business insight from the data.

Job Responsibilities
Understand complex business requirements
Design and develop ETL pipeline for collecting, validating and transforming data according to the specification
Develop automated unit tests, functional tests and performance tests
Maintain optimal data pipeline architecture
Design ETL jobs for optimal execution in AWS cloud environment
Reduce processing time and cost of ETL workloads
Participate in peer reviews and design/code review meetings
Provide support for production support operations team
Implement data quality checks.
Identify areas where machine learning can be used to identify data anomalies

Experience & Qualifications
5+ years of experience in programming language Java or Scala
5+ years of experience in ETL projects
3+ years of experience in big data projects
2+ years of experience with API development (REST API's) and testing (Rest Assured)
Believes in Scrum/Agile, and has deep experience delivering software when working on teams that use Scrum/Agile methodology
Strong and creative analytical and problem-solving skills

Required Technical Skills & Knowledge
Strong experience in Java or Scala
Strong experience in big data technologies like AWS EMR, AWS EKS, Apache Spark
Strong experience with serverless technologies like AWS Dynamo DB, AWS Lambda
Strong experience in processing with JSON files
Must be able to write complex SQL queries
Experience in performance tuning and optimization
Familiar with columnar storage formats (ORC, Parquet) and various compression techniques
Experience in writing Unix shell scripts
Unit testing using JUnit or ScalaTest
Git/Maven/Gradle
Code Reviews
Agile

The following skills a plus:
AWS Cloud
BPM/AWS Step Functions
Python scripting
Foundational knowledge of application security testing
Hands-on DevOps skills
UI testing tools like Cypress, Playwright