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The 2017 Tech 40: Steven Lieblich

< The 2017 Tech 4017. Steven LieblichChief Technology OfficerCitadelLast year: PNR

In 1986, after earning a B.A. in economics from Columbia University, Steven Lieblich entered the IT training program at Morgan Stanley. He stayed with the investment bank for exactly 30 years and one week, rising to chief information officer and serving along the way as head of the equity technology group and the institutional securities group's technology division. That Wall Street pedigree explains why Citadel came calling last year, and in September, Lieblich joined the Chicago-based hedge fund firm as chief technology officer. "It was a great run," Lieblich says of the Morgan Stanley years, but his administrative and management responsibilities had taken him away from his first love: programming. Today at Citadel, the 52-year-old says he is working "hands on, in the weeds, on white boards, with the next generation of talented developers and engineers, and partnering with traders and portfolio managers who are as conversant in technology as any computer scientist. That goes for Ken too." That is a reference to Kenneth Griffin, founder and CEO of the $27 billion-in-assets Citadel, to whom Lieblich reports.

Lieblich says he is currently focused on a number of things, including big data, cloud computing, mobile computing, and security. "In the early days, leaders would say, 'Tech is really important to our businesses,' which later evolved to where we are today: 'Technology is the business,'" he says. "As excited as I was to get here last year, I am even more excited about what's ahead."

 The 2017 Tech 40Click below to view profiles
1. Adena FriedmanNASDAQ2. Catherine BessantBank of
America Corp.3. Robert GoldsteinBlackRock4. Jeffrey SprecherIntercontinental Exchange5. Lance UgglaIHS Markit
6. Shawn Edwards & Vlad KliatchkoBloomberg7. David CraigThomson Reuters8. Michael SpencerNEX Group9. Don CallahanCitigroup10. Elisha WieselGoldman Sachs Group
11. Michael BodsonDepository Trust & Clearing Corp.12. Terrence DuffyCME Group13. Charles LiHong Kong Exchanges and Clearing14. Sean BelkaFidelity Investments15. Chris ConcannonCBOE Holdings
16. Guy ChiarelloFirst Data Corp.17. Steven LieblichCitadel18. David RutterR3CEV19. Blythe MastersDigital Asset Holdings20. Alfred SpectorTwo Sigma Investments
21. Neil KatzD.E. Shaw Group22. Lee OleskyTradeweb Markets23. Richard McVeyMarketAxess Holdings24. David GledhillDBS Bank25. Seth MerrinLiquidnet Holdings
26. Antoine ShagouryState Street Corp.27. Peter Brown &
Robert Mercer
Renaissance Technologies28. Lou EcclestonTMX Group29. Peter CherecwichNorthern Trust Corp.30. Mike ChinnS&P Global Market Intelligence
31. Chris CorradoLondon Stock Exchange Group32. Neal PawarAQR Capital Management33. Gary NorcrossFidelity National Information Services34. Steven O'HanlonNumerix35. Sebastián CeriaAxioma
36. Brian ConlonFirst Derivatives and Kx Systems37. Tyler KimMaplesFS38. Michael CooperBT Radianz39. Robert SchifelliteBroadridge Financial Solutions40. Jim MinnickeVestment