<s>
After	O
finishing	O
his	O
Ph.D.	O
,	O
Stata	O
worked	O
for	O
Digital	O
Equipment	O
Corporation	O
's	O
Systems	O
Research	O
Center	O
,	O
where	O
he	O
contributed	O
to	O
the	O
AltaVista	O
search	B-Application
engine	I-Application
.	O
</s>
<s>
The	O
company	O
developed	O
the	O
Bloomba	B-Application
search-based	O
e-mail	B-Protocol
client	I-Protocol
and	O
the	O
SAProxy	O
anti-spam	O
filter	O
.	O
</s>
<s>
Stata	B-Application
Labs	I-Application
was	O
acquired	O
by	O
Yahoo	B-Application
!	I-Application
</s>
<s>
Stata	O
was	O
also	O
involved	O
early	O
in	O
Apache	B-Application
Hadoop	I-Application
,	O
consulting	O
with	O
and	O
eventually	O
hiring	O
its	O
founders	O
Doug	O
Cutting	O
and	O
Mike	O
Cafarella	O
at	O
Yahoo	B-Application
!	I-Application
.	O
</s>
<s>
After	O
leaving	O
Yahoo	B-Application
!	I-Application
</s>
<s>
Stata	O
served	O
as	O
Altiscale	O
's	O
CEO	O
until	O
2016	O
,	O
when	O
the	O
company	O
was	O
acquired	O
by	O
the	O
software	O
company	O
SAP	B-Application
for	O
more	O
than	O
$125	O
million	O
.	O
</s>
<s>
Following	O
SAP	B-Application
's	O
acquisition	O
,	O
Stata	O
became	O
senior	O
vice	O
president	O
of	O
big	O
data	O
services	O
for	O
about	O
a	O
year	O
.	O
</s>
