Michael Heuer, a researcher at UC Berkeley AMP Lab (http://bdgenomics.org), has been a Biojava contributor since 2000.

Michael presented Biojava at BOSC 2005, Biojava spinoff project StAX (http://stax.sf.net) in a lightning talk at BOSC 2005, and Biojava at BOSC 2008. See BOSC2008_Abstract and BOSC2008_Presentation.

Michael was a co-author on Biojava publications

BioJava: an open-source framework for bioinformatics.
Holland RC, Down TA, Pocock M, Prlić A, Huen D, James K, Foisy S, Dräger A, Yates A, Heuer M, Schreiber MJ.
Bioinformatics. 2008 Sep 15;24(18):2096-7. Epub 2008 Aug 8.
PMID: 18689808
The Sanger FASTQ file format for sequences with quality scores, and the Solexa/Illumina FASTQ variants.
Cock PJ, Fields CJ, Goto N, Heuer ML, Rice PM.
Nucleic Acids Res. 2009 Dec 16.
PMID: 20015970
BioJava: an open-source framework for bioinformatics in 2012.
Prlić A, Yates A, Bliven SE, Rose PW, Jacobsen J, Troshin PV, Chapman M, Gao J, Koh CH, Foisy S, Holland R, Rimsa G, Heuer ML, Brandstätter-Müller H, Bourne PE, Willis S.
Bioinformatics. 2012 Oct 15;28(20):2693-5. doi: 10.1093/bioinformatics/bts494. Epub 2012 Aug 9.
PMID: 22877863

For source code contributions, see http://www.ohloh.net/accounts/heuermh

For additional data analysis and visualization libraries, see http://www.dishevelled.org

For the Cytoscape 2.x plugin and 3.x app for Venn and Euler diagrams, see http://apps.cytoscape.org/apps/vennandeulerdiagrams

For the Cytoscape 3.x Worm Plot app, see http://apps.cytoscape.org/apps/wormplot

For the Cytoscape 3.x Variation app, see http://apps.cytoscape.org/variation

For everything else, see https://github.com/heuermh