Shalaka Singh
Hoffman Estates
Summary
Highly accomplished Data Engineering Leader with 20+ years of progressive experience driving data strategy, architecture, and delivery across highly regulated industries, including Insurance, Banking, Retail, and Grocery. Proven ability to lead and scale high-performing engineering teams to transform complex data landscapes into actionable insights and robust analytical platforms. Expert in modern cloud and big data technologies, including Databricks, Snowflake, PySpark, Azure and Python, with a foundational background in enterprise application development (Java/J2ee, Spring Boot). A strategic partner focused on minimizing time-to-value and maximizing data-driven business impact.
Overview
22
22
years of professional experience
Work History
Principal Consultant, Data Engineering
Constellation Energy Group
Chicago, IL
01.2026 - Current
- Led cross-functional teams to develop strategic energy solutions for diverse clients.
- Designed and implemented process improvements, enhancing operational efficiency and client satisfaction.
- Analyzed market trends to inform strategic decision-making and identify growth opportunities.
- Facilitated workshops to align stakeholder objectives with project deliverables and timelines.
- Mentored junior consultants, fostering professional development and knowledge sharing within the team.
Data Engineering Lead
84.51
Chicago, IL
04.2019 - 05.2025
- 84.51 Collaborative Cloud (Data Science Platform):
- Architected and led the development of the 84.51 Collaborative Cloud data platform (using technologies like Databricks, Python, Snowflakes, Azure), providing CPG partners with direct access to 2+ billion annual UPC-level transactions with persistent household identifiers, generating $10M annual revenue.
- 84.51 Clean Room for CPG partners:
- Engineered and deployed a secure Data Cleanroom environment (using Snowflake, Azure, python) to enable CPG partners to safely match, analyze, and activate first-party data against publisher data, ensuring strict GDPR/CCPA standards and zero data leakage.
- Stratum Direct - (Data Sharing Product):
- Led design & data engineering teams to build Data on Demand platform using Snowflake, driving $5M incremental annual revenue.
- On-Shelf Availability:
- Led agile cross-functional teams (Data Science, Product, Users) from functional design and requirements gathering through technical architecture, driving a key enterprise-wide data and advanced analytics initiative.
Advanced Analytics Engineer
Discover Financial Services
Riverwoods, IL
09.2017 - 04.2019
- Decision and Deployment Platform for Model Development and Training for Data Scientists:
- Development of Catalog service APIs to browse through all available and accessible database schemas and tables for users to view and to help build SQL
- Development of project Service APIs to create, update, select and list projects, iterations and steps
- Development of User Service APIs to create, update users after they are authenticated using LDAP for IDM roles.
Software Engineer III
Sears Holding Corporation
Hoffman Estates, IL
10.2012 - 08.2017
- Demand Forecasting & Data Science:
- Developed and deployed SparkR and R programs leveraging Google/AWS MapReduce frameworks to execute demand forecasts at the line and category levels, directly informing and optimizing procurement and ordering strategies.
- Enterprise System Development (UPAS & UC):
- Executed end-to-end responsibilities including Requirement Analysis, design, and multi-tier development across critical enterprise systems utilizing the Spring framework.
- Drove system enhancements, feature integration, and strategic upgrades to maintain functional currency and achieve measurable increases in operating efficiency.
Senior Software Engineer/ Tech Lead
Patni America's INC
India And USA
03.2004 - 01.2012
- Development in all the tiers of software development using struts and spring frameworks. Responsible for design, development & revisions.
- Handling technical lead responsibilities, coordination with external teams & Offshore-onsite co-ordination activities and query resolution.
Education
Master of Science - Computer Science
Pune University
Pune, Maharashtra, India06-2003
Bachelor of Science - Computer Science
Pune University
Pune, Maharashtra, India06-2001
Skills
- Compute & Storage:
- Databricks, Azure, Apache Spark, SQL, PySpark, Delta Lake, Unity catalog, Snowflake, Parquet, LakeHouse, Airflow, ELT, Big Data, ETL, Google Cloud Google-data-proc, Google-Storage, AWS-S3, AWS –EC2, AWS-EMR
- AI:
- Azure Open API, LLM, Naive RAG, Embedding, Model Tuning, Prompt Engineering, Vector Database, Lang Chain, Hugging Face, Foundation Model, Naive Rags
- Development Languages:
- Java, Python, PySpark, SparkR, SpringBoot, MVC frameworks, Web services, micro services
- Shell Scripting:
- Unix, Linux
- Visualization:
- Power BI, Tableau
Timeline
Principal Consultant, Data Engineering
Constellation Energy Group
01.2026 - Current
Data Engineering Lead
84.51
04.2019 - 05.2025
Advanced Analytics Engineer
Discover Financial Services
09.2017 - 04.2019
Software Engineer III
Sears Holding Corporation
10.2012 - 08.2017
Senior Software Engineer/ Tech Lead
Patni America's INC
03.2004 - 01.2012
Bachelor of Science - Computer Science
Pune University
Master of Science - Computer Science
Pune University