Senior Backend Engineer (Spark, Scala, Python, AWS/GCP)

Location: Elk Grove, CA Duration: 12Months+ Extension Hourly Rate: Depending on Experience (DOE) Work Authorization: About the Role We are seeking a skilled and passionate Back-End Engineer with a strong background in data engineering to join our growing team. In this role, you will be responsible for designing, developing, and maintaining scalable and reliable data pipelines and back-end systems. You will work with large datasets, leverage cloud technologies, and collaborate with data scientists and other engineers to deliver impactful data-driven solutions. This position is available in both the United States and India. Responsibilities Design, develop, and maintain data pipelines using Spark, Python, Scala, and Java. Write efficient and optimized SQL queries for data extraction, transformation, and loading (ETL) processes. Work with DataFrames to manipulate and analyze large datasets. Implement data storage and processing solutions using cloud technologies (preferably AWS or GCP). Build and maintain real-time data streaming pipelines using MSK/Kafka. Utilize S3 for data storage and retrieval. Work with data lake technologies like Iceberg. Ensure data quality, integrity, and security. Collaborate with data scientists and other engineers to understand data requirements and deliver solutions. Participate in code reviews and contribute to improving our development processes. Troubleshoot and resolve issues in data pipelines and back-end systems. Qualifications Bachelor’s degree in computer science or a related field (or equivalent experience). 5+ years of experience in back-end development with a focus on data engineering. Required Skills Strong proficiency in Spark, Python, Scala, and Java. Expertise in SQL and working with relational databases. Experience with DataFrames for data manipulation and analysis. Experience with cloud technologies (preferably AWS or GCP). Experience with message streaming platforms like MSK/Kafka. Experience with S3 or similar object storage. Experience with data lake technologies like Iceberg. Solid understanding of data warehousing concepts. Excellent communication and collaboration skills. Bonus Points Experience with data modelling and schema design. Experience with data governance and data quality management. Experience with DevOps practices and CI/CD pipelines. Relevant certifications (e.g., AWS Certified Data Engineer, Google Cloud Certified Professional Data Engineer). ETHEREUM TECHNOLOGIES LLC is an equal opportunity employer inclusive of female, minority, disability and veterans, (M/F/D/V). Hiring, promotion, transfer, compensation, benefits, discipline, termination and all other employment decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, age, disability, national origin, citizenship/immigration status, veteran status or any other protected status. ETHEREUM TECHNOLOGIES LLC will not make any posting or employment decision that does not comply with applicable laws relating to labor and employment, equal opportunity, employment eligibility requirements or related matters. Nor will ETHEREUM TECHNOLOGIES LLC require in a posting or otherwise U.S. citizenship or lawful permanent residency in the U.S. as a condition of employment except as necessary to comply with law, regulation, executive order, or federal, state, or local government contract #J-18808-Ljbffr ETHEREUM TECHNOLOGIES LLC