# Stefan Hermanek > Product Manager at Two Sigma Location: New York, New York, United States Profile: https://flows.cv/stefanhermanek Skills: • Machine Learning, Unsupervised & Supervised Models, Feature Engineering, Training-Testing-Validation, BI, Analytics. • Cloud-Native Architectures, Microservices, Kubernetes, Distributed Systems, RESTful APIs, AWS, GCP. • Java, vertx, Elastic, Python, Pandas, NLTK, scikit, SQL, HTML, CSS, JavaScript, Node, Angular, React, JSON. • Customer Research, UX Design, Wireframes, Product Strategy, Roadmap, Agile/SCRUM, Functional Specs. SaaS. • Deeply technical, strong business acumen, influencer and prioritization skills, excellent communication, global outlook. ## Work Experience ### Product Manager @ Two Sigma Jan 2022 – Present | New York, New York, United States Product Manager ### Product Manager @ Facebook AI Jan 2020 – Jan 2022 | San Francisco Bay Area ### Senior Product Manager @ People.ai Jan 2019 – Jan 2020 | San Francisco Bay Area Areas of ownership: • Matching (core AI engine) - developed core logic of People.ai; improved precision and recall while influencing all People.ai products and customers; awarded multiple patents; and increased team velocity • PeopleGraph™ (core graph of humans in the professional world) - evolved graph to take into account recency and evaluate multiple sources; grew size of graph; and incorporated various CCPA/GDPR compliance requirements • Relationship-based prospecting ("Prospect Search") - built complex Search experience which incorporates data from >4 data sources; shipped product 40% ahead of schedule; achieved double digit organic adoption ### Product Manager @ People.ai Jan 2019 – Jan 2019 | San Francisco Bay Area ### Product Manager @ AppDynamics Jan 2018 – Jan 2019 | San Francisco Bay Area Product Manager for Query Layer, Unstructured Data (Events), and Machine Learning Platform ### Product Manager @ AppDynamics Jan 2018 – Jan 2018 | San Francisco Bay Area Product Manager for Analytics (focus area: Unstructured Data (Events)) • Formulated scaling strategy for high-availability data service powered by ElasticSearch. The relevant service handles multiple billion of events per day. • Relevant technologies: ElasticSearch, Apache Kafka, Kubernetes ### Product Management Intern @ AppDynamics Jan 2017 – Jan 2017 | San Francisco Bay Area ### Engine Production - Project Controlling - Intern @ BMW Group Jan 2016 – Jan 2016 • Designed and launched re-vamped Excel-templates for project valuations; assisted during roll-out of improved valuation logic in ~$600m engine production project; provided training and support for technical valuation teams during launch. • Contributed to development of generic valuation tools for projects’ investment and budgetary requirements. • Conducted data analyses and assisted in creating presentations regarding ~$3bn long-term investment-planning (engine-production projects) for BMW Senior Management. ### Technical Consulting (Sales Engineering) Intern @ PayPal Jan 2015 – Jan 2015 • Conducted in-depth quality control of integrations for new B2B-product during ramp-phase while closely coordinating with Senior Product Manager. Interacted with relevant stakeholders from various divisions and conducted 25 interviews with selected merchants. Presented findings and KPIs to Director-level executives on multiple occasions. • Designed, developed and tested internal tool for tracking industry news on Twitter; content is acquired and filtered through Python-crawler; implemented admin-panel in MEAN-stack and front-end in WordPress. • Crafted strategy recommendations from extensive research into Chinese internet landscape and payment industry. Presented findings to teams and divisions including China-focused team (China Connect) and Business Unit head. ### IT and Business Development - Intern @ The News Lens Jan 2014 – Jan 2014 | Taipei, Taiwan • Demonstrated strategic thinking through formulation of 90-day corporate strategy after in-depth data analysis of website channels with particular emphasis on video strategy. Recommendations resulted in 100% increase in video-subscribers and 420% increase in numbers of views. • Crafted extensive in-house and industry research; presented insights to IT, Business Development and CEO. Improved bounce-rate and average time-on-site (A/B-tested), thus proving technical, business and leadership skills. • Led company proposal for a cooperation project with large video site valued above $30k; communicated with different divisions to create comprehensive training program for university students in under 3 weeks. ### Intern to the Congressman @ Deutscher Bundestag Jan 2012 – Jan 2012 | Berlin, Germany • Built strong analytical skills through preparation of summaries and communication guidelines for the Congressperson • Coordinated communication with more than 40 other Congresspersons and their offices ahead of crucial Euro-vote • Sharpened interpersonal skills by writing speeches and handling voters’ communication • Demonstrated organizational skills through assisting and facilitating congressional tour for 50 selected constituents • Gained first-hand insights into legislative process in Germany and political environment of European union ## Education ### Master of Information Systems Management (MISM) in Management Information Systems, General Carnegie Mellon University Jan 2016 – Jan 2017 ### Bachelor of Business Administration (B.B.A.) in Global Business and Operations Management HKUST Business School Jan 2011 – Jan 2015 ### Bold to Win Jan 2020 – Jan 2020 ## Contact & Social - LinkedIn: https://linkedin.com/in/stefanhermanek --- Source: https://flows.cv/stefanhermanek JSON Resume: https://flows.cv/stefanhermanek/resume.json Last updated: 2026-03-29