This is our monthly feature where we recap the biggest tech hires in Chicago over the past month. Here’s our list of the top hires in Chicago tech for April:

Groupon

Groupon announced that it has hired former Orbitz CFO Mike Randolfi as its chief financial officer. Randolfi will oversee accounting, financial planning and analysis, investor relations, tax, procurement, internal audit and treasury, Groupon said. At Orbitz, he helped lead the company’s 2015 merger with Expedia. Prior to Orbitz, Randolfi held a number of senior finance roles at Delta Air Lines, ultimately serving as Senior Vice President and Controller.

Avant

Chicago online lending startup Avant hired Brooke Skinner Ricketts, the former head of brand strategy at Twitter, as its VP of Brand & Design. While at Twitter, Ricketts was based out of the company’s Chicago office and led a team that worked with marketers and agencies on ways they could use Twitter to improve their brand. Ricketts has also worked as the head of brand strategy for DigitasLBi and as the global director of strategic planning at FCB Global. She’s married to Laura Ricketts, a co-owner of the Chicago Cubs and the sister of Tom Ricketts, the team’s chairman.

Brooke Skinner Ricketts (via Avant)

This month Avant also hired Raj Vora, who joined Avant’s Capital Markets team as the Vice President and Head of Institutional Fund Products. Vora will lead strategy for Avant’s managed investment vehicles and assist with a variety of Avant’s capital raising efforts, the company said. Vora was previously the Executive Director in UBS Investment Bank’s Private Funds Group in Chicago.

Uptake

Uptake, a Chicago-based data analytics and Internet of Things startup launched by Groupon co-founder Brad Keywell, hired Nicholas Percoco as its chief information security officer. Percoco ran Trustwave’s SpiderLabs for 10 years, where he developed the company’s first security consulting offerings. After leaving Trustwave in 2013 he joined Rapid7, a provider of security data and analytics solutions. Percoco also started THOTCON, a hacking conference in Chicago.

SpotHero

On demand parking startup SpotHero hired Ellen Shapiro this month as its lead mobile developer. Shapiro will focus on building out a dedicated mobile team, including hiring iOS and Android developers, to create the next evolution of SpotHero’s mobile app, SpotHero said. Shapiro joins SpotHero from mobile design agency Vokal, where she served as Director of iOS Engineering. Prior to that, she developed iOS and Android apps at The Nerdery.

kCura

kCura, the maker of legal software used for managing and analyzing electronic data during litigation and investigations, hired Jason Ream as its chief financial officer. Ream will oversee core internal operations and financial strategies, and will report to kCura’s founder and CEO Andrew Sieja, the company said. Ream was the former chief financial officer of Austin-based SolarWinds, where he led the company to a successful IPO and the subsequent effort to take the company private again in a $4.5 billion sale.

Heidi Voorhees (via Eved)

Eved

Chicago event management startup Eved, which provides an event commerce platform for Fortune 500 companies like Dell and Eli Lilly and Company, hired Heidi Voorhees as General Manager of its Supplier Marketplace. Prior to Eved, Heidi was Senior Vice President of Housing for Experient, a Maritz Travel Company, where she led a 70+ member team. Before that, she led the meeting and events department at the Institute of Food Technologists.

LotLinx

Automotive digital marketing technology provider LotLinx announced that it has hired Mark Boyd as the company’s Vice Chairman and Chief Revenue Officer. Boyd will lead all LotLinx growth initiatives, the company said. Boyd was one of LotLinx’ early investors and joined its board in 2012. Most recently, Boyd co-founded Cargigi, where he was Chief Strategy Officer until the company’s acquisition by eBay in March 2016.