Optum Global Solutions Interview Questions, Process, and Tips for Experienced

Normalization organizes data to reduce redundancy and improve integrity in databases.

• Normalization involves dividing a database into tables and defining relationships.

• It typically follows several normal forms (1NF, 2NF, 3NF) to eliminate data anomalies.

• Example: Splitting a customer table into separate tables for customer info and orders.

• Group By is an SQL clause that aggregates data based on one or more columns.

• Example...read more

Joins are SQL operations that combine records from two or more tables based on related columns.

• INNER JOIN: Returns records with matching values in both tables. Example: SELECT * FROM A INNER JOIN B ON A.id = B.id;

• LEFT JOIN: Returns all records from the left table and matched records from the right table. Example: SELECT * FROM A LEFT JOIN B ON A.id = B.id;

• RIGHT JOIN: Returns all records from the right table and matched...read more

I am a Senior Data Engineer with 5+ years of experience in designing and implementing data pipelines for large-scale projects.

• Experienced in ETL processes and data warehousing

• Proficient in programming languages like Python, SQL, and Java

• Skilled in working with big data technologies such as Hadoop, Spark, and Kafka

• Strong understanding of data modeling and database management

• Excellent problem-solving and communication sk

Developing a real-time data processing system for analyzing customer behavior on e-commerce platform.

• Utilizing Apache Kafka for real-time data streaming

• Implementing Spark for data processing and analysis

• Creating machine learning models for customer segmentation

• Integrating with Elasticsearch for data indexing and search functionality

Company is a leading provider of outsourcing solutions with a focus on process improvement and efficiency.

• Company offers a wide range of services such as data entry, customer support, and back office support.

• They have a strong track record of delivering high-quality results for their clients.

• Company values employee development and provides opportunities for growth within the organization.

I am impressed by the company's reputation for innovation and growth.

• I admire the company's commitment to developing cutting-edge technologies.

• I am excited about the opportunities for career advancement within the company.

• I value the company's strong focus on employee development and training programs.

Yes, I am okay with night shifts as I am comfortable working during those hours.

• I am a night owl and perform better during night shifts

• I have previous experience working night shifts and have adjusted well to the schedule

• I understand the importance of night shifts in certain industries like healthcare or customer service

My goal in life is to create a positive impact through my work, fostering growth and support for others while achieving personal fulfillment.

• Strive for continuous personal and professional development, such as pursuing certifications in claims management.

• Aim to build strong relationships with clients, ensuring their needs are met and they feel supported during the claims process.

• Contribute to a positive workplace cultu...read more