Lasya Marella-Data Engineer
Check rate
Experience
Data Engineer
Carelon Global Solutions (Elevance Health)
- Designed and implemented scalable ETL/ELT pipelines using Python, SQL, dbt, AWS and Informatica to ingest data from sources such as APIs, relational databases, and flat files into Snowflake, reducing pipeline runtime by ~30%.
- Migrated high-volume datasets from on-premises Teradata to Snowflake using AWS services (S3, Glue, Step Functions, IAM), ensuring data consistency and integrity.
- Applied Kimball methodology to design star and snowflake schemas, improving query performance and reducing Snowflake compute costs.
- Implemented automated data quality checks using SQL-based dbt tests and the Great Expectations framework to detect anomalies and enforce data correctness before production loads.
- Orchestrated ETL workflows in Airflow using Python and managed code deployments via Git with CI/CD best practices to increase deployment reliability and maintain pipeline uptime.
- Built interactive Power BI dashboards and curated datasets to enable data-driven decision-making for stakeholders.
- Maintained technical documentation in Confluence for ETL workflows, and led knowledge-sharing sessions for new joiners.
ETL Developer
Carelon Global Solutions (Elevance Health)
- Performed root cause analysis for ETL incidents and data anomalies reported by stakeholders, implementing code fixes that reduced production incidents by ~20%.
- Optimized ETL pipelines through logic improvements and code refactoring, reducing processing time by ~35%.
- Conducted unit and integration testing for all code changes, ensuring data correctness before promoting updates to production environments.
- Managed data pipelines using Airflow and utilized Git-based CI/CD to automate code deployments and maintain version control.
- Collaborated with QA and business teams in an Agile environment to deliver technical enhancements during scheduled release cycles.
IT Analyst
Teleperformance DIBS
- Worked on Google Maps-related products, testing and validating functionality based on user-reported issues.
- Investigated customer queries, identified defects or inconsistencies, and documented detailed analysis reports for development teams.
- Acted as a bridge between users and developers by translating issues into clear, actionable technical insights.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Healthcare and Information Technology.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Business Intelligence, Customer Service, and Quality Assurance.
Summary
Data Engineer with 4 years of data experience, including 2 years as an ETL Developer. Proficient in building scalable ETL/ELT pipelines using AWS, Snowflake, dbt, and Python for healthcare insurance data. Skilled in supporting large-scale data migrations, applying Kimball modeling, and delivering Power BI dashboards for data-driven decision-making.
Skills
- Programming: Sql (Advanced), Python (Pandas, Numpy), Unix Shell Scripting
- Databases & Data Warehousing: Snowflake (Snowpipe, Streams, Data Sharing), Teradata, Oracle, Sql Server
- Cloud: Aws (S3, Glue, Dms, Step Functions), Gcp (Bigquery)
- Etl & Orchestration: Dbt, Apache Airflow, Fivetran, Informatica Powercenter
- Devops & Tools: Git, Docker, Ci/Cd Pipelines
- Ai & Automation: Claude, Cursor
- Data Modeling & Quality: Kimball Modeling, Dbt Tests, Great Expectations
- Bi & Visualization: Power Bi (Dax, Power Query)
Languages
Education
Jawaharlal Nehru Technological University
BTech. in Electronics and Communication Engineering · Electronics and Communication Engineering · Hyderabad, India
Certifications & licenses
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Lasya is based in Berlin, Germany.
Lasya speaks the following languages: English (Advanced), German (Elementary).
Lasya has at least 5 years of experience. During this time, Lasya has worked in at least 3 different roles and for 2 different companies. The average length of individual experience is 2 years and 8 months. Note that Lasya may not have shared all experience and actually has more experience.
Based on recent experience, Lasya would be well-suited for roles such as: Data Engineer, ETL Developer, IT Analyst.
Lasya's most recent position is Data Engineer at Carelon Global Solutions (Elevance Health).
In recent years, Lasya has worked for Carelon Global Solutions (Elevance Health).
Lasya is most experienced in industries like Healthcare and Information Technology.
Lasya is most experienced in business areas like Information Technology, Business Intelligence, and Customer Service. Lasya also has some experience in Quality Assurance.
Lasya holds a Bachelor in Electronics and Communication Engineering from Jawaharlal Nehru Technological University.
Lasya has 3 certificates. These include: AWS Certified Cloud Practitioner, Power BI, and Python For Data Analysis & Visualization.
Lasya is immediately available full-time for suitable projects.
Daily rate distribution
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Average rates for similar positions
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The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 26 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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