Their “clinet” is looking for something to do intelligent vertical search. Lisp or other languages desired (but Lisp was mentioned first).
http://jobs.dpcit.com/Inquire.cfm?JID=3343

Is this legitimate? Half-time webdev consultant position, lasting about a year.
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hands on ’senior lisp/AI programmer’ with experience in machine learning, etc. in a ‘healthcare development organization.’
http://newyork.craigslist.org/wch/web/460171561.html
http://newyork.craigslist.org/wch/web/460157353.html 

Mostly PHP and C, perhaps, but wants Lisp, too.
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From comp.lang.scheme:
The recent graduate who’s been doing most of the BRL work at my employer for nearly a year is moving on to an opportunity of greater societal significance. If anyone out is or knows someone who likes and knows server-side web programming, SQL and finance, and who likes Scheme and might want this [...]

Matchcraft, founded in 1998, is a technology driven media solutions company that maximizes Return-On-Investment for interactive advertisers. Matchcraft tracks, analyzes, and optimizes the “matches” to maximize results. We are a very large user of Google and Overture paid ads and their respective API’s.
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Responsible for leading the architecture and development of several core components that will become part of our search technology platform, including search engine architecture, performance and scalability optimization, and core semantic search-and-browse functionality.
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“Specific skills and experience required:
…
[5] Experience with dynamic languages (JavaScript, Lisp, or Scheme).”
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“Our client seeks experienced Lisp developers to build innovative web applications.”
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Ten person Chicago-based (Lakeview) ISV seeks an experienced Lisp
developer to help in the continued development of its inventory
management product.
Qualification include:
* Professional experience using Lisp (preferably CMUCL) to develop web
applications.
* Experience with HTML, CSS, SQL.
* Comfortable in a Linux environment (our “IDE” is emacs and cvs).
* Able to work well on a team.
Please send a plain [...]