Alexander Langowski Email & Phone Number

New York, Ny, Us

New York City, Us

As a freelance AI consultant, I spearheaded the development of a comprehensive AI solution for a medical practice, transforming their patient engagement and appointment scheduling process. My role involved architecting an end-to-end system capable of autonomously making phone calls to schedule appointments. Key to this initiative was crafting highly effective prompts for a Large Language Model (LLM) to manage nuanced interactions during these calls. I further innovated by integrating the practice’s calendar with both the calling platform and calendar providers through Python-scripted API calls, ensuring real-time accuracy in appointment scheduling. To address exceptions seamlessly, I designed an intelligent call session management system that facilitated smooth transfers to office staff. Leveraging GPT-3.5, I fine-tuned the model for precise extraction of structured data from call transcripts, enhancing our data handling capabilities. Additionally, I automated the dispatch of SMS confirmations post-call, ensuring clarity in appointment details, and implemented both text and LLM-driven phone call reminders to reduce no-shows. A significant part of my work also included developing custom converters to digitize customer contact information from legacy Point of Sale (POS) system PDF reports into actionable data. Lastly, I engineered a generative AI-driven pipeline that smartly separates full names into first and last, streamlining the data preparation process. This suite of solutions not only elevated the practice's operational efficiency but also significantly improved patient satisfaction and engagement.

Chicago, Illinois, Us

Datassential is the leading food and beverage intelligence platform, providing guidance on trends, competitive benchmarking, and sales intelligence.Hired and led a global team of data scientists, data engineers, and analytics engineers to drive enterprise-wide data practices, fostering a culture of innovation and data sharing. Built POCs (Proofs of Concept) to demonstrate achievable improvements in business efficiency with generative AI through GPT-based model fine-tuning, enhancing Q&A solutions with RAG (Retrieval-Augmented Generation) approaches.

New York, New York, Us

Members of the Primary Expert Network (PEN) support founders through key operating challenges and share best practices between / among functional experts. Unlike most advisory groups, it’s not just anchored around C-level executives, but the men and women who are driving key operating capabilities that startups need.Primary Venture Partners is a Seed-stage venture capital firm responsible for backing NYC’s most talented founders. With the largest portfolio impact team of any NYC Seed investor, its significant talent, finance, and network resources drive measurable results and empower portfolio companies to thrive from Seed to Series A and beyond. Historical successes include seed investments in Jet.com, Ticketfly, TxVia, and Coupang, and the firm counts some of NYC’s most promising startups—including Slice, Mirror, Ollie, Latch, Vestwell, Electric, and Bravely—among its portfolio. Learn more at http://www.primary.vc.

New York City, Us

Thimble makes insurance simple, enabling small businesses to succeed on their own terms.Built the company wide data practice (data engineering, business intelligence, analytics, and data science) from the ground up.

New York, Ny, Us

Slice empowers independent pizzerias with the modern tools that have allowed major pizza chains to dominate until now. By uniting these small businesses with specialized technology, marketing, data insights, and shared services, all at industry-low flat-rate pricing, Slice enables them to serve their digitally-minded customers and move away from 3rd party apps. Defined and optimized company data science and business intelligence by building and leading a team of talented data scientists and analysts. Acted as player-coach for the team through individual contributions in location intelligence, machine learning, external data acquisition through scraping and API’s, advanced fuzzy matching algorithms, etc.

Chicago, Illinois, Us

OnDeck uses data aggregation and electronic payment technology to evaluate the financial health of small and medium sized businesses and efficiently deliver capital to a market underserved by banks. Through the OnDeck platform, millions of small businesses can obtain affordable loans with a fraction of the time and effort that it takes through traditional channels.Headed up a data science group of senior data scientists and a data science manager with responsibilities for companywide direct marketing and outbound sales analytics. The team focused on building machine learning models from proprietary customer data and available for purchase 3rd party data.

Chicago, Illinois, Us

Grubhub is a leading online and mobile food-ordering and delivery marketplace with the largest and most comprehensive network of restaurant partners, as well as millions of active diners.Led the data & analytics team in marketing and provided subject matter expertise across the organization. Scaled geospatial analysis at the census block level, and implemented decision trees with census data and proprietary customer data to optimize prospecting.

Chicago, Illinois, Us

Automated customer data flows across several platforms to facilitate individually tailored and triggered retention e-mail campaigns. Built predictive models in scikit-learn to reduce customer churn, and developed recommendation algorithms to increase customer order frequency.

New York, Ny, Us

A pioneer of marketing in the digital age, Razorfish has a unique blend of technology, creativity and media at its core. Created value for clients through automation of data processing, KPI reporting, and statistical analysis of sales lift and campaign effectiveness of digital ads.

Nashville, Tn, Us

AllianceBernstein (AB) is a leading global investment management firm that offers high-quality research and diversified investment services to institutional investors, individuals, and private wealth clients in major world markets.Held roles in capacities around portfolio management and quantitative analysis, at times managing 10 people across the globe, producing custom analyses on large datasets with SQL and SAS.

B.S., International Business And Finance

Data Science

International Business

International Business

Abitur, Mathematics, English, Physics, History