David Bialer, Product Manager in Traverse City, MI, United States
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David Bialer

Verified Expert  in Product Management

Product Manager

Traverse City, MI, United States
Toptal Member Since
February 23, 2022

David has over 35 years in the tech industry, launching innovative, complex products across multiple markets. He's led teams that have delivered consumer marketplaces, SaaS platforms, developer tools, device software, and human psychometrics. David is the calm in the storm, inspiring teams to give their best. He ruthlessly prioritizes and believes in transparency. David excels at bringing ideas from conception to launch and everything in between, including market validation and prototyping.

Project Highlights

Firefox Marketplace
Led a cross-functional team of 22 people to design, build, and launch Firefox Marketplace, a web app store for Mozilla, resulting in 50 million users in 2.5 years across 38 countries, 50+ languages, nine currencies accepted, and 85% user retention.
A Psychometrics Platform for HR Utilizing Machine Learning
Led the design and development of an enterprise SaaS platform used on career sites as well as by human resource companies to predict a candidate's success. Ran a 50 company beta program and launched product to the first 15 enterprise clients.
SensorWeb Market Validation to Prototype
Led a small team of engineers and designers to perform a market validation study and then implement a prototype for a project consisting of 10,000 consumer devices that measure and model air quality in cities.


Work Experience

Principal at Blueranger Product Consulting

2012 - PRESENT
  • Developed a product roadmap and trained teams on Agile methodologies for a Dubai-based SaaS psychometric company. Built and launched a system to match jobs to people based on their psychometric profiles and led the implementation of GDPR compliance.
  • Created a product strategy for a machine learning startup in the emotional computing Al space that led to two successful spinouts and subsequent investments.
  • Helped Microsoft develop their go-to-market plan to develop channels for their embedded product lines and obtain budget approval.
  • Assisted SpikeSource's CEO pivot a product into a new segment of vulnerability scanning resulting in its acquisition by Black Duck.
  • Helped a global satellite communications company develop its machine-to-machine strategy and ecosystem.
  • Wrote the product requirements documents for the web-based operating system Firefox operating system from Mozilla and Firefox Marketplace, its app store for web apps—resulting in multimillion-dollar financial commitments from mobile telecom operators.
  • Led the development of an enterprise SaaS product for a human resources software that used human psychometrics and machine learning to predict fits between employees and jobs, employees and managers, and employees to teams.

Technical Product Owner

2022 - 2023
Peloton / Precor
  • Led the feature and backlog prioritization for building a next-generation exercise machine console by breaking feature requests into actionable groomed stories for engineers to execute.
  • Led team weekly reviews and group grooming of product backlog.
  • Designed the beta program for the consoles and broke logs into beta reports on errors and usage by location, machine type, and beta release. Wrote advanced SQL queries into Amazon Redshift and Tableau to visualize the information.


2016 - 2019
Spectrum Friends
  • Founded a nonprofit site focused on helping neurodiverse people find friends and romance. Shut site down due to lack of time.
  • Built website and mobile site for dating based on feedback from a previous site called Autism Dating Club.
  • Launched MVP and gained about 1000 users based on a Wordpress theme.

Lead Product Manager, Enterprise

2017 - 2018
  • Orchestrated the product roadmap, requirements, prioritization, and delivery of a SaaS platform that quantifies human psychometrics information and uses it to predict fits to jobs, teams, and managers.
  • Implemented GDPR and privacy shield for European privacy compliance.
  • Launched the enterprise product for the first 15 enterprise clients.

Lead Product Manager

2012 - 2017
  • Defined, drove, and launched Firefox Marketplace, an eCommerce app store for HTML5 web apps across Firefox OS (phones and TV), Firefox for Android, and Firefox Desktop.
  • Grew Firefox Marketplace from zero to 50 million unique users within 2.5 years, producing 7 million monthly active users.
  • Drove the implementation of a recommender system using machine learning to personalize content recommendations personalization and increased conversions from 40% to 70%.
  • Led a cross-functional multi-continent team as product owner for multiple parallel initiatives consisting of engineering, QA, and UX through product sprints and weekly product releases.
  • Launched the app store with multiple mobile operators across 38 countries and 50+ languages.
  • Responsible for the consumer-facing apps and website that resulted in high growth and high engagement of four visits per month and 85% monthly retention rate.
  • Spearheaded new product initiatives for connected devices taking them from ideas, to technical feasibility and market validation using Lean Startup techniques, prototyping, and launch.

Head of Ecosystem and Director of Partner Ecosystem, Business Development and Community

2005 - 2009
Nokia (Through the Acquisition of Trolltech)
  • Drove the business development relationship with Nokia that led to Trolltech's acquisition by Nokia.
  • Led the strategic partnering, partner products/services, and open source community for flagship products—Qt and Qtopia—that increased revenue from partners from 1% of company revenue to 19% of total company revenue.
  • Ran business development and built international strategic relationships with key mobile, semiconductor, embedded technology, and service providers for the mobile handset and consumer electronics industry.
  • Served as sponsor for Qt open source community activities and a 300,000 member developer community.
  • Managed launch and developed community support of the first open mobile handset, Qtopia Greenphone, a Linux-based complete mobile software solution.
  • Worked with Nokia’s three largest system integration partners and developed a training program to onboard them to the Qt ecosystem.

Vice President of Product and Marketing Programs

2003 - 2005
Encirq, Inc.
  • Contributed to the relaunching of an embedded database startup by developing product positioning and messaging, implementing all product marketing, and launching new products.
  • Helped the CEO raise $5 million in Series-A funding that enabled the company to build out its team.
  • Negotiated the strategic OEM partnership and distribution deal with Metrowerks, Motorola, and Freescale that led to $1.5 million in revenue.
  • Developed international sales channels in Asia and Europe.

Owner | President | Entrepreneur

2001 - 2003
Bay Mobile Wash
  • Founded and self-financed an onsite eco-friendly automotive detailing services company with a fleet of six crews. Clients included Microsoft, Sun Microsystems, Veritas, Yahoo!, Kaiser Permanente, and others.
  • Built vehicle fleet and company revenue to $1.5 million within 18 months with 16 employees.
  • Successfully exited with a purchase from a competitor for $1.6 million.

Senior Vice President and General Manager, Products and Services Division

1998 - 2001
  • Owned P&L responsibility for embedded products, mobile applications, and professional services. Oversaw product management, engineering, sales, marketing QA, and international offices in Japan and Germany.
  • Increased division revenue by 700% to $32 million for division, resulting in an IPO on NASDAQ and a $1.5 billion market capitalization.
  • Designed and implemented a new strategy and execution team, transitioning the division to a market focus that included product lines for mobile devices, thin clients, web appliances, and set-top boxes.

Co-founder, MobileSoft Division | Senior Product Manager, Mobile Software

1996 - 1998
  • Co-founded the MobileSoft division of Philips Electronics, the first online app store for Windows CE software.
  • Product-managed the Philips Velo 1 Pocket PC software that launched and won the Best of Comdex and the Best of CES awards.
  • Added innovations to Microsoft's Windows CE platform that added voice recording, a database, fax capabilities, and one of the first software modems that led to Windows CE devices' market leader.

Firefox Marketplace


Led a cross-functional team of 22 people to design, build, and launch Firefox Marketplace, a web app store for Mozilla, resulting in 50 million users in 2.5 years across 38 countries, 50+ languages, nine currencies accepted, and 85% user retention.

I was initially contracted as a consultant for Mozilla to write the PRD for Firefox OS (operating system), a mobile operating system based on web technology. This resulted in two major international mobile operators committing tens of millions of dollars to launch cell phones with this technology into emerging markets.

I was then asked to do another project: define the app store for Firefox OS. I had about five months until the launch of mobile phones in South America. I was asked to join Mozilla full-time to drive the project. In 2.5 years, we launched in emerging markets in South America, Eastern Europe, Southeast Asia, India, and China.

This project included many stakeholders and special portals for each: a developer portal to submit and price apps, an app review workflow portal, mobile operator portals for analytics, an editorial portal for online editors of the app store, and user applications for Firefox OS, Android, and Firefox Desktop.

A Psychometrics Platform for HR Utilizing Machine Learning

Led the design and development of an enterprise SaaS platform used on career sites as well as by human resource companies to predict a candidate's success. Ran a 50 company beta program and launched product to the first 15 enterprise clients.

Good.co developed a personality measurement tool, like Meyer-Briggs on steroids, and built a database of over two million personalities. Using proprietary algorithms that utilized machine learning, this information was used to predict how well a person would match a job, a manager, a team, and a company.

Additionally, for existing-working teams, we developed a method to check the health of a team and provide actionable insights into improving the success of a team-based on research and principles developed by Google.

SensorWeb Market Validation to Prototype


Led a small team of engineers and designers to perform a market validation study and then implement a prototype for a project consisting of 10,000 consumer devices that measure and model air quality in cities.

SensorWeb was a project that consisted of devices that measure air quality and a back end to collect the data, and a website to display air quality.

Senior executives asked me to lead a project that was started by engineers but had been flailing for lack of leadership and direction. I was asked to check it for market fit and then to take it forward to a hardware and software prototype. The intent was to build 10,000 devices and distribute these to people in densely polluted cities.

Using Lean startup techniques, I performed a one-week market validation using Facebook Ads and a landing page where potential users could show interest. The initial target market was Taipei, where air quality coming in from mainland China was a problem. The concept validated where we had a high interest in obtaining one of the devices.

Using customer input, we built a hardware prototype of 10 units as well as a website to display air quality that was populated by data from devices.

My role was to evaluate a market fit, develop user stories, create product roadmaps, prioritize features based and drive the creation of the prototype. The project did not continue past this point because of a change in the company's strategic direction.
1989 - 1991

MBA in Strategic Managerment and Marketing

The Wharton School of the University of Pennsylvania - Philadelphia, PA, United States

1980 - 1983

Bachelor's Degree in Computer Science, Minor in Electrical Engineering

Cornell University College of Engineering - Ithaca, NY, United States


Professional Scrum Master Level I (PSM I)



Prompt Engineering for ChatGPT

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Unsupervised Learning, Recommenders, Reinforcement Learning

DeepLearning.AI and Stanford University | via Coursera


Advanced Learning Algorithms

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Professional Scrum Product Owner I (PSPO I)



Machine Learning

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Recommender Systems: Evaluation and Metrics

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Recommender Systems: Matrix Factorization and Advanced Techniques

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Introduction to Recommender Systems: Non-personalized and Content-based

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Recommender Systems: Nearest Neighbor Collaborative Filtering

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Jira, Bugzilla, Tableau, Google Analytics, Trello, Confluence, Tableau Desktop Pro, Figma, Git, Asana


Scrum, Marketplace Platforms, Agile Product Management, Agile, Agile Project Management, Mobile App Design, Agile Software Development, Design Thinking, Kanban, B2C, Requirements Analysis, B2B2C, Desktop Web Design, Business to Business to Consumer (B2B2C), Data Science, Data Product Management, Scalable Application, Stage Gate Process


Zendesk, Android TV

Industry Expertise

Marketplaces, Telecommunications, Consumer Products, Education Technology (Edtech), Nonprofits, Energy


Agile Sprints, Product Management, Product Consultant, Product Leadership, Product Owner, Product Planning, Mobile Web, Operating Systems, Web Applications, Product Roadmaps, User Stories, New Product Development, Go-to-market Plans, Product Requirements Documentation (PRD), Apps, Product Ownership, Mobile, Cross-functional Collaboration, User Requirements, Cross-functional Team Leadership, Agile Product Delivery, Product Launch, Feature Roadmaps, Feature Backlog Prioritization, Feature Prioritization, Roadmaps, Technical Product Management, Sprint Planning, Minimum Viable Product (MVP), Feature Planning, New Products, Requirements & Specifications, Technology, Backlog Grooming, Backlog Management, Software, Software Development, Leadership, App Store, Software Development Lifecycle (SDLC), Pitch Decks, Product Delivery, Business Analysis, Product Vision, Requirements, Business Cases, Strategy, Design Specifications, User Onboarding, Scrum Product Owner, Business Logic, Product Development, Revenue Modeling, Revenue Strategy, Third-party Management, Customer Data, Product Growth, Competitive Strategy, Machine Learning, Recommendation Systems, Lean Startups, Partnerships, SaaS Product Management, B2B Product Management, Embedded Software, Connected Devices, Mobile Apps, Mobile Payments, Management, Validation, Software Ecosystems, APIs, Web Development, Analytics, Consumer Electronics, GDPR, Product Strategy, Team Mentoring, Market Assessment, SaaS, Mobile Development, eCommerce, App Development, Developer Relations, Partner Management, Strategic Partnerships, Team Management, Data Privacy, Team Leadership, International Growth, Software as a Service (SaaS), Training, Web App Design, B2B, Internet of Things (IoT), Web Design, Web App Development, KaiOS, Responsive Web Apps, Localization, Devices, Web UX, Remote Team Leadership, Progressive Web Applications (PWA), Product Discovery, Startups, Mobile Applications, Stakeholder Management, Business to Consumer (B2C), User Experience (UX), User Research, User Feedback, Head of Product, Growth, User Engagement, Discovery Workshops, Mobile App Development, Feasibility Studies, Product Strategy Consultant, New Products & Services, Sprint Retrospectives, MVP Design, Dating Apps, iOS, Web App UX, Mobile UX, Proof of Concept (POC), UX Wireframes, Direct to Consumer (D2C), Technical Leadership, Data Analysis, Digital Product Management, Functional Requirements, Business Requirements, Discovery, Data Analytics, Algorithms, Product Conceptualization, App UX, Monetization, Enterprise Software, Business Model Canvas, Coaching, Innovation, Value Proposition, Use Cases, Web & Mobile Applications, Web Platforms, International Data Privacy Regulations, Conceptualization, Two-sided Marketplaces, Business Planning, Wireframing, Beta Testing, Key Performance Indicators (KPIs), Agile Leadership, User Journeys, Product Lifecycle Management (PLM), User Flows, Prototyping, Scrumban, Market Research, Consulting, Business Strategy, Multi-sided Marketplaces, Client Portals, Data Reporting, Staffing, Project Timelines, Mentorship & Coaching, Mobile Web Services, Online Payments, Integration, Stripe Payments, Data Visualization, Software Engineering, Cloud, Voice of the Customer (VoC), Go-to-market Strategy, Budgeting, Agile Coaching, Workflow Tools, Data Products, Microsoft PowerPoint, Project Planning, Competition Research, Consumer Technology, Culture Management, Product Design, Dashboards, Beta Programs, Waterfall Methodology, Certified Scrum Product Owner (CSPO), Community, Product Analytics, Catalogs, Compliance, Platforms, App Support, Pricing Strategy, User Journey Maps, Monetization Models, Workflow, Certified ScrumMaster (CSM), Communication, Web Product Management, Process Improvement, Subscriptions, Pricing Models, Customer Research, Scope, Request for Proposal (RFP), Negotiation, User Behavior, Business Intelligence (BI) Platforms, Reviews, Affiliate Programs, Pricing, Geolocation, Consumer Behavior, Data-driven Decision-making, Hardware Integration, Startup Funding, App Product Management, Design, Databases, Drone Piloting, Responsive Web Design (RWD), Psychometrics, Python, Qt 5, UserVoice, Jira Administrator, Development, New Business Development, Marketing, Small Business Management, Embedded Systems, Sales, Business Development, Enterprise SaaS, Mentorship, Google BigQuery, Payment APIs, Emerging Markets, Market Fit, Jobs to be Done (JTBD), Lean Product Management, IT Security, Consumer-focused Web Development, Lean Product Manager, Distributed Team Management, Mobile eCommerce, COPPA, Business to Business (B2B), Strategic Planning & Execution, Senior Executive Management, Point-of-Sale (POS) Systems, Industrial Internet of Things (IIoT), Windows Embedded, System Integration, Back-end, Front-end, User Needs, Startup Consulting, Stakeholder Engagement, Stakeholder Interviews, eCommerce UX, Consumer Services, User Retention, New Product Business Cases, Websites, WordPress, System Requirements, Scope of Work, Artificial Intelligence (AI), Wireframe to Product, App Design, Ideation, Mockups, Documentation, Lean Experiments, Electrical Engineering, JavaScript, Search Engine Development, Google, API Integration, UX Testing, Quality Assurance (QA), Security, Hardware, Multimedia, Firmware, Embedded Hardware, SQL, Android, ChatGPT, Natural Language Processing (NLP), Artificial Neural Networks (ANN), TensorFlow, Unsupervised Learning, Market Strategy and Research Product Manager, Wearables, Technical Writing, Data Migration, Generative Pre-trained Transformers (GPT), Data Management, UX Design, Optimization, Scrum Master, Risk Management, Investor Presentations, Process Optimization, Finance, Web3, E-learning, Edtech Design, Project Management, Product Marketing, Accounting, GPT, SMS, A/B Testing, Sensor Data, Learning Management Systems (LMS), IoT Protocols

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