Our Team

Photo of Paul Smith, Chief Technology Officer & Co-founder at Ad Hoc

Paul Smith

Chief Technology Officer & Co-founder

Paul Smith is a software engineer who has been developing applications professionally for more than fifteen years. He was a co-founder of EveryBlock, a pioneering hyperlocal news startup. He worked on the 2012 re-election campaign of President Obama as the deputy director of technology of the DNC. Paul was a leader of the team that fixed HealthCare.gov after its troubled launch.

Photo of Greg Gershman, Chief Executive Officer & Co-founder at Ad Hoc

Greg Gershman

Chief Executive Officer & Co-founder

An experienced software developer and entrepreneur, Greg’s career has included work in both startups and government. Greg’s experience as a Presidential Innovation Fellow and as part of the “tech surge” that fixed HealthCare.gov after its troubled launch, and his belief that small, smart teams of developers can improve how government delivers services, led him to co-found Ad Hoc.

Photo of Alayna Abel, Operations Analyst at Ad Hoc

Alayna Abel

Operations Analyst

Alayna is an operations analyst who loves thinking on her feet, designing creative solutions to complex problems, and learning about everything.

Photo of Mike Auclair, Software Engineer at Ad Hoc

Mike Auclair

Software Engineer

Mike is a software engineer who has spent his career cutting gordian knots in multiple industries, building CRMs, real estate platforms, and large-scale applications at both the state and federal government level.

Photo of Jeff Balboni, Software Engineer at Ad Hoc

Jeff Balboni

Software Engineer

Jeff is a front-end engineer with ten years of experience building applications on the web. He’s passionate about building user interfaces that are friendly and easy to use.

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Rachel Baliff

Director of Human Resources

Rachel is a results-oriented HR leader with 15+ years experience in technology start-ups, media, & consumer goods. She is committed to delivering progressive HR initiatives, championing a fair, consistent approach to staffing & management, and exceeding internal & external client expectations.

Photo of Brian Bonenberger, Software Engineer at Ad Hoc

Brian Bonenberger

Software Engineer

Brian is a front-end software engineer who spent a decade building web applications for giant corporations and tiny startups before joining Ad Hoc.

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Danny Chapman

Creative Director

A designer of applications and services, Danny has over ten years experience improving citizen interactions with government. Danny specializes in taking government user experience from backwards and dated, to cutting edge and award-winning.

Photo of Daniel Cloud, Software Engineer at Ad Hoc

Daniel Cloud

Software Engineer

Daniel is a software engineer with experience creating web and iOS apps. He got into this line of work before “cloud computing” was a buzzword.

Photo of Nick Clyde, Software Engineer at Ad Hoc

Nick Clyde

Software Engineer

Nick is a software engineer who is passionate about improving healthcare by fiddling around with computers. He also happens to be obsessed with making really good coffee.

Photo of Alastair Dawson, Software Engineer at Ad Hoc

Alastair Dawson

Software Engineer

Alastair has over 15 years experience developing applications for both startups and established companies. Having worked in the media, banking, and mobile sectors he’s excited to bring his insight to Ad Hoc and help streamline government services.

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Sophia Dengo


Sophia is a designer/developer who loves to solve problems. She was a Code for America Fellow in 2015, and comes to Ad Hoc after a year of getting to know how American city governments work. When not in front of a computer screen, you can find her at a jeweler’s bench or the nearest yarn shop.

Photo of Robert DiMartino, Software Engineer at Ad Hoc

Robert DiMartino

Software Engineer

Robert is a software engineering with a background in mathematics. Prior to joining Ad Hoc, programming was his hobby. Now he is excited to work on applications that other people will actually use.

Photo of Eugene Doan, Software Engineer at Ad Hoc

Eugene Doan

Software Engineer

Eugene is a developer with experience working on web and desktop applications. He believes in building software with form and function that delights users.

Photo of Laura Ellena, User Experience Researcher at Ad Hoc

Laura Ellena

User Experience Researcher

Laura is a user experience researcher who is interested in plain language and hearing strangers’ life stories on public transit. She previously worked on police open data as a 2015 Code for America Fellow.

Photo of Robert Fairhead, Technical Project Manager at Ad Hoc

Robert Fairhead

Technical Project Manager

Bob has more than a decade of experience across government and the private sector. He’s worked on business strategy, foreign affairs, and technology projects.

Photo of Louis Fettet, Software Engineer at Ad Hoc

Louis Fettet

Software Engineer

Louis is a software engineer with a passion for projects that matter. He has experience working on the open data programs of a handful of government organizations, and is excited to continue repeating the phrase “I fight for the users” as he takes on projects at Ad Hoc. In his spare time he plays a variety of tabletop games and video games and obsesses over all things A Song of Ice and Fire.

Photo of Oren Fromberg, Software Engineer at Ad Hoc

Oren Fromberg

Software Engineer

Oren has over a decade of experience developing software. Passionate about the web, he also has broad expertise with robotics, computer vision, simulation, and augmented reality. Driven by making other people say “wow”.

Photo of Chris Gansen, Software Engineer at Ad Hoc

Chris Gansen

Software Engineer

Chris is a regular guy who likes making software that helps people live better lives. Over the course of his career, he has helped build software to re-elect a president, raise millions of dollars for charity, educate small-business owners in developing economies, and help folks get coupons for canned tuna.

Photo of Cat Greim, Delivery Manager at Ad Hoc

Cat Greim

Delivery Manager

Cat likes to build things with people, whether on the web or at her local community garden. She joins Ad Hoc to continue working at the intersection of technology and public service.

Photo of Brian Gryth, Delivery Manager at Ad Hoc

Brian Gryth

Delivery Manager

Brian joins Ad Hoc to do the work he loves, helping governments deliver technologies that make government accessible to everyone, not just experts and lawyers. For a decade, he led civic efforts, like OpenColorado & Go Code Colorado, that created richer and more civically engaged communities.

Photo of Katie Gwinn, Operations Analyst at Ad Hoc

Katie Gwinn

Operations Analyst

Katie is a lover of lists, spreadsheets and people. Her role with Ad Hoc allows her to bring these all together and focus on all things Operations. Prior to joining Ad Hoc, Katie worked in the financial services and aerospace & defense industries.

Photo of Spencer Hawkins, Software Security Analyst at Ad Hoc

Spencer Hawkins

Software Security Analyst

Spencer is a passionate cybersecurity professional with a desire to change the way people see security. As an avid hiker and camper, he loves being outdoors just as much as he loves being on his computer.

Photo of Shawna Hein, Designer at Ad Hoc

Shawna Hein


Shawna comes to design with a background in Computer Science, Sociology, and HCI. She specializes in touch and mobile design, and worked for years as an independent consultant doing research and design for top tech businesses in the Bay Area.

Photo of Aubrey Holland, Software Engineer at Ad Hoc

Aubrey Holland

Software Engineer

Aubrey stumbled into a job doing atmospheric modeling in Fortran way back in 1995 and hasn’t stopped writing code since. His career has consisted primarily of web development projects for startups, primarily using languages and tools not developed in the 1950s.

Photo of Alexis James, Delivery Manager at Ad Hoc

Alexis James

Delivery Manager

Alexis is an experienced Project/Product Manager with over 10 years of experience working on diverse software/web products for government, military, hospital and university clients. She brings her personal passion for thoughtful user experience/interaction design to all of her work.

Photo of Carl Johnson, Software Engineer at Ad Hoc

Carl Johnson

Software Engineer

Carl is a philosopher and programmer. His first computer was a Laser 128.

Photo of Chris Johnson, Software Engineer at Ad Hoc

Chris Johnson

Software Engineer

Chris began his career over a decade ago enlisting in the Air Force as a computer programmer. Since then, he’s generally worked on web applications for a variety of startups. He prefers spaces vs. tabs, vim vs. emacs, and Coke vs. Pepsi.

Photo of Jonathan Julian, Software Engineer at Ad Hoc

Jonathan Julian

Software Engineer

Jonathan has over 20 years of experience in software engineering, including backend, web, and mobile development. He has always loved taking things apart — and putting them back together again.

Photo of Kam Karshenas, Software Engineer at Ad Hoc

Kam Karshenas

Software Engineer

Kam wrote his first lines of code at the age of 10, modifying Gorillas.bas to make bigger explosions. He has since honed his skills in multiple programming languages and is passionate about crafting beautiful, well-tested and secure web applications (so that things don’t explode).

Photo of James Kassemi, Software Engineer at Ad Hoc

James Kassemi

Software Engineer

James is passionate about crafting well tested and scalable software applications. He is excited to apply over a decade of experience in the startup world to enhancing government services.

Photo of Brian King, Software Engineer at Ad Hoc

Brian King

Software Engineer

Brian likes to write clean, portable, and practical software. He can be found among his dog entourage, donut and coffee in-hand.

Photo of Ken Koski, Software Engineer at Ad Hoc

Ken Koski

Software Engineer

Ken got a taste of software development by doing frontend work for a startup, and has never looked back. He writes software that maximizes happiness and minimizes pain.

Photo of Ben Kutil, Designer at Ad Hoc

Ben Kutil


Ben focuses on design systems that help people succeed, with an emphasis on performance and accessibility.

Photo of Elizabeth Lewis, Technical Project Manager at Ad Hoc

Elizabeth Lewis

Technical Project Manager

Elizabeth joins Ad Hoc with 15 years of project/program management experience ranging from process improvement to software implementations and everything in between. She thrives off projects that result in change and a positive user impact.

Photo of Lihan Li, Software Engineer at Ad Hoc

Lihan Li

Software Engineer

Lihan is an engineer engineering emazing ebsites.

Photo of Maury Lindo, Software Engineer at Ad Hoc

Maury Lindo

Software Engineer

Maury is a software engineer who has an eye for pixel perfection. He aims to create visually stunning and interactive websites.

Photo of Stacy Linn, Designer at Ad Hoc

Stacy Linn


Stacy is a UX designer with background in architecture and engineering. She is passionate about using design to make positive impact. Outside of work she is an avid hiker, backpacker, gardener and science illustrator.

Photo of Austin Martinez, Software Engineer at Ad Hoc

Austin Martinez

Software Engineer

Austin is a software engineer with experience working at Silicon Valley startups. He is excited to create software that impacts millions of people and streamlines government processes.

Photo of Wryen Meek, Business Analyst at Ad Hoc

Wryen Meek

Business Analyst

Wryen is passionate about building Civic Technology that works for everyone, every time. He is excited to join the Ad Hoc team to craft 21st-century solutions that matter.

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Curtis Mejeur

Program Director

Curtis is an experienced program manager who has grown large and small programs.
He led the US Government’s technical response to the breach at OPM. He believes strongly in enabling the autonomy of engineering.

Photo of Bill Mill, Software Engineer at Ad Hoc

Bill Mill

Software Engineer

Bill is a software developer with more than ten years of experience creating programs of all sorts. He gets data from the database to where it needs to go with a minimum of fuss and a maximum of efficiency.

Photo of Michael Miller, Software Engineer at Ad Hoc

Michael Miller

Software Engineer

With a background in academia (computer science and formal reasoning systems), government, and private industry, Michael has been developing software for more than fifteen years. He has a strong interest in research which has led to a number of patents and successful applications.

Photo of Leanna Miller Sharkey, Technical Project Manager at Ad Hoc

Leanna Miller Sharkey

Technical Project Manager

Leanna joins Ad Hoc as a technical project manager. She’s excited to help the team develop elegant solutions to important problems. Before Ad Hoc, Leanna specialized in product development and marketing for startups.

Photo of Savannah Million,  at Ad Hoc

Savannah Million

Savannah is a designer who loves making things on the internet, whether it’s websites, podcasts, art, or improved government experiences.

Photo of Scott Murray, Business Analyst at Ad Hoc

Scott Murray

Business Analyst

Scott is an out-of-the-box problem solver who is excited to join Ad Hoc and see his work truly help people.

Photo of Ryan Nagle, Software Engineer at Ad Hoc

Ryan Nagle

Software Engineer

Ryan builds internet things to help people better understand and get along with the world around them. Before joining Ad Hoc, he worked in journalism, helping news organizations (e.g., Chicago Tribune, INN, BreakingNews.com) share their reporting with the world.

Photo of Juliana Neelbauer, Chief Operating Officer at Ad Hoc

Juliana Neelbauer

Chief Operating Officer

Juliana leads business operations at Ad Hoc following her years of experience as a corporate counsel for software companies, business consultant, college lecturer, hackathon mentor to organizers and hackers, tech law blogger, and as an adviser to hundreds of engineers and executives.

Photo of Kristin Oberhaus, Business Analyst at Ad Hoc

Kristin Oberhaus

Business Analyst

Kristin is a two-time graduate of The Ohio State University with a Bachelor of Music Education and an MBA. Kristin’s past employment experience has focused on business-to-business enterprise systems enhanced by an integration of disparate components and systems.

Photo of Mark Olson, Software Engineer at Ad Hoc

Mark Olson

Software Engineer

Mark is a backend software developer who sometimes yearns for halcyon days of TI-BASIC and making sites entirely in Notepad.

Photo of Daniel X. O’Neil, Director of Product Development & Business Strategy at Ad Hoc

Daniel X. O’Neil

Director of Product Development & Business Strategy

Dan has worked on the Internet since 1998, running consulting practices, building products, and starting companies. He is a co-founder of EveryBlock, founding executive director of Smart Chicago, and a board member at Voqal and Sunlight Foundation.

Photo of Cindy Phan, Designer at Ad Hoc

Cindy Phan


Cindy is a designer passionate about understanding why things are the way they are and finding ways to make them even better. She’s spent years working with social impact organizations on how to use design + tech to increase their reach.

Photo of James Rhein, Software Engineer at Ad Hoc

James Rhein

Software Engineer

James is a software engineer who has been writing code to help people obtain health insurance since the beginning of his career. He is excited about helping to develop software that makes a difference in people’s lives.

Photo of Rachael Roueché, Technical Project Manager at Ad Hoc

Rachael Roueché

Technical Project Manager

Rachael is crazy about using the web to make complex tasks easy. She’s been in the project management world for seven years, working with teams to deliver software, websites, mobile apps (and more!) for organizations large and small.

Photo of Bill Ryan, Software Engineer at Ad Hoc

Bill Ryan

Software Engineer

Bill is a programmer with a background in software security. He spends his days working up and down the tech stack; changing stuff and seeing what happens.

Photo of Mickin Sahni, Delivery Manager at Ad Hoc

Mickin Sahni

Delivery Manager

Most excited when working with great people to solve real problems, Mickin is a product developer focused on product management, strategy, and design. Past projects include making it easier for citizens to access SNAP benefits, promoting safety on telco sites across the U.S., and supporting civil servants in the EOP.

Photo of Ben Shyong, Software Engineer at Ad Hoc

Ben Shyong

Software Engineer

Ben Shyong is a software engineer who first got into computers when playing solitaire on a Windows 3.1 machine. He was a co-founder of Meddik, a digital health startup serving online patient communities, and has built several side projects including an internet-enabled microwave.

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Graham Smith

Software Engineer

Graham is a software engineer with over a decade of experience in all sorts of projects. He joined Ad Hoc after working in the ad tech & healthcare industries.

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Winnie Smith

Business Analyst

Winnie considers herself to be a creative problem solver who is committed to providing solutions that contribute to the greater good. She has a love for all things tech and enjoys dabbling in other areas such as coding and design in her free time. With six years of prior experience in Healthcare IT, Winnie looks forward to making a positive impact in the government space.

Photo of Amrom Steinmetz, Software Engineer at Ad Hoc

Amrom Steinmetz

Software Engineer

Amrom is a software engineer who enjoys solving tough problems and keeping up with the latest trends in technology.

Photo of Michael Sutton, Program Manager at Ad Hoc

Michael Sutton

Program Manager

Sutton believes in well-specified cars, spicy beers, cold tacos, and fast JIRA tickets. He plays the recorder in national competitions and struggles to match adjectives to nouns.

Photo of Sarah-Jaine Szekeresh, Software Engineer at Ad Hoc

Sarah-Jaine Szekeresh

Software Engineer

Sarah-Jaine is passionate about making the world a happier, healthier and more productive place through web development and software innovation.

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Chris Szeluga

Delivery Manager

Chris has an interest obsession with finding efficiencies in anything from critical government software development lifecycles to making pancakes.

Photo of Alex Taylor, Designer at Ad Hoc

Alex Taylor


Alex has been using design and technology to make things better than they were for over fifteen years. These days those things are mostly web applications.

Photo of Ian Topper, Technical Project Manager at Ad Hoc

Ian Topper

Technical Project Manager

Ian has a decade of experience across the military, government and the private sector. Before joining AdHoc, Ian spent his time blowing things up as an Army Explosive Ordnance Disposal officer, but now he focuses on defusing problems encountered while developing products.

Photo of Christopher Valarida, Software Engineer at Ad Hoc

Christopher Valarida

Software Engineer

Web developer by day, vigilante musician / gamer / computer geek by night. Chris started learning to program as a kid so he could make video games, but now uses those skills to make the web a more beautiful place whenever he can.

Photo of Rachel Veal, Delivery Manager at Ad Hoc

Rachel Veal

Delivery Manager

Rachel serves as a conduit for embedding innovative, cost-saving, and solution-based devops practices into all stages of development. She’s dedicated years to improving our government’s cyber resilience, and strives to transform the way we approach security.

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Patrick Vinograd

Software Engineer

Patrick has over a decade of experience building messaging and virtualization infrastructure. He spends his time making computers talk to each other, and making computers not talk to each other.

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Kristin Walker

Research Coordinator

Kristin has a passion to make a difference. Being able to connect with people and be a part of change is what she strives for.

Photo of Caitlin Weber, Designer at Ad Hoc

Caitlin Weber


Focused on social impact work, Caitlin is a designer trained to see patterns, and parallels across seemingly disparate ideas. She is a translator and short term expert, burdened with understanding concepts broadly (sometimes deeply), and interpreting that expert understanding into a human one.

Photo of Rob Wilkerson, Software Engineer at Ad Hoc

Rob Wilkerson

Software Engineer

Rob is a software engineer, but he hasn’t always been one. He’s also been an architect, a carpenter and a paratrooper, but never a butcher, baker or candlestick maker.

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Carolyn Williams


Carolyn joins Ad Hoc with over five years designing user-centered products for government and mission-based organizations. In her spare time she enjoys baking, crosswords, and exploring new cities.

Photo of Patrick Wolfert, Software Engineer at Ad Hoc

Patrick Wolfert

Software Engineer

Patrick likes to make beautiful and useful things. His early programming days were spent developing games—where he found an exciting convergence of art, engineering, and storytelling—and now he enjoys a day job where his code really makes a difference, where he connects with a wide audience of Americans through the canvas of a web app and helps make their stories better.

Photo of Mel Woodard, Designer at Ad Hoc

Mel Woodard


Mel is focused on building beautiful, intuitive and scaleable products, with experience creating both complex enterprise applications and consumer experiences.