From an email from Hans Mollet at Alphacet:
Alphacet, Inc. develops innovative software and solutions for quantitative analysts, traders and portfolio managers.
The company’s flagship product—Alphacet Discovery—is being introduced commercially in 2008, after more than four years of intensive development. Alphacet Discovery is the only completely integrated solution for complex quantitative strategy development and deployment in the [...]

An email from Chakravarthy Parankusam at Teleonto:
Teleonto Technologies Private Ltd., located in Hyderabad, India, builds
and delivers an exciting and growing range of analytics for the
telecommunications industry using Artificial Intelligence techniques.
Teleonto has made a major commitment to the use of Lisp and functional
programming. Our versatile ApT platform is a service-oriented
architectural workflow framework written in Common Lisp, [...]

An email from Rosario M. Ingargiola:
We are looking for an excellent Lisp developer that has very good mathematical capabilities (math PhD and/or domain expertise would be major pluses) to write a bunch of key routines for our algorithmic trading platform.
Our platform is a visual modeling environment that lets users create arbitrarily complex algorithmic trading strategies [...]

Fidelity Pricing & Cash Management Services (FPCMS) provides accounting and investment management support services to Fidelity mutual funds and other investment vehicles, as well as to many Fidelity business partners. FPCMS Systems works on technology-based projects in collaboration with Fidelity’s other Systems divisions, customers and vendors (such as the FMR trading desk), and the custodian [...]

I like their insouciance:
You need to be able to prove to us that you can keep up. We think that means you should be a Junior or Senior in Comp Sci Engineering (or equivalent). Listen, smarty-pants - you WILL be given a programming test. We know it seems dire, but hey, there are a lot [...]

 WE are a small high-end financial services consulting firm located near Wall Street. We work on interesting projects in multiple technologies and languages including c++, java, c#/.net, and much more (sql, lisp, python, malebolge, whitespace, unlambda).
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OK, I admit I was captured by the Gmail ad: Do you think in closures? It’s not a Lisp job, but they are all over functional programming. In New York City.

“Highly quantitative” position “Your technical skills must include either Python, Smalltalk, Ruby, Lisp/Scheme.” Pays well: $225K. New York, NY.