Big Data Developer - W2

Mid Big Data Developer - W2

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