Roger Steffen Email & Phone Number

United States

Boston, Ma, Us

LLM:- Engineered prompts for code conversion (moving code from Parquet to Snowflake)- Prototyped verbal description to automated campaign creationMachine learning:- Built predictive lifetime value model for use by all clients- Built likelihood to pay full price model for use by all clients- Extended product recommendation engine to incorporate non-transaction events and side information- Generalized typical pre and post product recommendation processing for quick deployment by our implementation consultants- Built model to allow retailers to assess potential new store locations- Extended our retail ML models to travel, entertainment, and financial servicesMonitoring:- Built data monitoring tools to alert when the incoming data to our platform is not as expected- Built data monitoring tools to alert when supervised ML models aren't as predictive- Built data monitoring tools to alert when there is drift in our unsupervised ML modelsAutomation:- Built Jenkins/python automation jobs for the provisioning of add-on product featuresClient and services:- Technical expert on new feature introduction meetings (client facing)- Drove the requirements discovery for custom machine learning models (client facing) - Mentor services personal on the implementation of our standard machine learning modelsTechnologies: Python, SparkML, Snowflake, SageMaker, Qubole (similar to Databricks), Looker (similar to Tableau), DataDog

Sunnyvale, Ca, Us

Implemented the Agilone CDP for our clients:- Project planning with client and internal teams- Data cleaning, mapping and transformation via SQL and Python- Data reconciliation- ML model setup and tuning (audience segmentation & recommendations)- Training end users- Strategizing marketing campaignsMachine learning:- Researched product recommendation models- Recommendation model for travel and entertainment client- Feature selection service- Customization of our standard ML modelsInternal tooling and services best practices:- Built automation tools to migrate configurations/setup from implementation to production environments- Built automation tools to migrate from a SQL Server version of our CDP product to Hadoop version

Mountain View, Ca, Us

Analysis and design of new platform features for the Locus Platform, including:• Entity relationships• Data security• Reporting (ETL, excel interoperability)Professional Services:• Design of environmental financial liability, purchase order, and invoicing modules for Fortune 100 company• Conduct end user and stakeholder interviews & synthesize findings

Houston, Texas, Us

Sales Enablement Tools (2014):Designed on-line tools (QlickView & SharePoint) to identify recent sales activity similar to current pursuits. Researched methods to identify cross-sell opportunities.Project Management Tools (2012-2013):Gather & analyze requirements and design solutions for reporting, project performance metrics, searches (for matching bench resources to future engagements), and business process automation for HP Enterprise Services (150,000+ resources).

Houston, Texas, Us

Lead customer facing R&D project teams to design, build, and deploy customizations and new product features for key customers.Lead the requirements gathering and analysis through detailed functional design of an enterprise project and portfolio management application (PPMC). Conduct design feedback sessions with customers and internal subject matter experts. Write and prioritize user stories, feature specifications, and fit criteria. Work with software engineers, architects, interaction designers, QA engineers, and documentation writers on a daily basis guiding tradeoffs, clarifying specifications, and reviewing completed work.Train customer support, pre-sales, and product services in new product releases.Accomplishments:• Redesigned the financial management, portfolio planning and optimization, and resource management modules of the PPMC software suite.• Designed the resource management system used by HP Enterprise Services (150,000+ consultants), including a fast heuristic to find available resources for upcoming engagements.• Designed and lead the implementation of a custom multi-tenant solution for a major services company.• Invented an estimation process to allow for long-term release planning with minimal information.

Houston, Texas, Us

Us

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Austin, Texas, Us

Champaign, Il, Us

- Guided students in the use of computer accessibility equipment in the computer accessibility lab.- Evaluated class websites for accessibility by (key board only navigation and screen readers)- Researched and helped build a web browser compatible with a screen reader.

New York, Us

Designed and developed custom reports against television ratings data and sample demographics. Projects included applying best predictor algorithms, investigating ratings anomalies, new product development.

Masters Of Computer Science

Bs, Mathematics