Resume for Benjamin LaHaise

Address: 
	 1167 Sixth Concession A Dalhousie
	 Lanark, Ontario
	 K0G 1K0
Email:   bcrl@kvack.org


Current Goals:
	- very interested in storage, networking, and telecommunications
	- prefer Linux kernel related programming work, open source environment
	- interested in further developing business skills


Programming Environment:

	- expert in C (K&R, ANSI/ISO C89/C99, GNU C extensions)
	- quite experienced with Assembly (i960, 80x86, 680x0, 6502, x86-64)
	- experienced with C++
	- make/GNU make
	- yacc/lex (bison/flex)
	- shell scripting (expert in GNU, some Solaris & FreeBSD)
	- VHDL/Verilog design/coding (implemented GEPON, PCIE nic in Xilinx
	  FPGAs)
	- generally happiest working on low level projects that straddle 
	  the boundary between hardware and software
	- able to pick up any programming environment
	- familiar with source management tools (patch, diff, CVS, git, bk)


Programming Skills:

	- participant in the Linux kernel open source community (since 1995), 
	  including presenting the results of development work at conferences 
	  (OLS, kernel summit)
	- Device Drivers (experienced in networking, telephony)
	- Kernel Subsystem Development (Linux aio, mm, fs, smp, arch)
	- Firmware Development (ISDN/T1, TeleNetworks & TeleSoft stacks)
	- Protocol implementation (PPP, L2TP, PPPoE, PCIE)
	- Scaling and performance improvement on SMP through profiling, 
	  instrumentation and code inspection.
	- Learned VHDL/Verilog to implement GEPON ONU/OLT in a Xilinx FPGA


Related Experience:

June 2011-present	developer, Mapleworks Technology
	- member of the L3 networking team
	- performed VxWorks L3 testing and verification of MPLS, LDP
	- design of PPP tunnelling implementation of L2TP, PPPoE

August 2006-May 2011	founder, Lhnet.ca Inc
	- started a fibre optic internet provider in Lanark County, Ontario 
	  to meet the needs of underserviced consumers in a rural setting.
	- followed through on all necessary regulatory requirements to 
	  register as a non-dominant Canadian Carrier in order to run 
	  new cables on telephone poles in Ontario.
	- sourced and integrated equipment for the initial build out the 
	  fibre optic network.
	- obtained fibre optic technician certificate.
	- performed customer installations and diagnostics starting in 2008.
	- managed finances.
	- negotiated contracts with business customers and suppliers.
	- fixed bugs and improved L2TP / PPPoE Babylon Linux PPP stack to 
	  adapt to customer premises equipment
	- fixed scalability issues in the Linux kernel and Babylon code to 
	scale to 100,000 network interfaces
	- network device driver performance tuning
	- implemented GEPON OLT/ONU in VHDL using Xilinx SP605 as a 
	prototyping platform
	- made contact with electronics parts vendors to source devices for 
	use in GEPON OLT and ONU designs

Feb 2007-May 2008 kernel developer, Juniper Networks
	- learned and contributed to development of the JunOS kernel (FreeBSD 
	  based), primarily through bug fixes, but also assisted in following 
	  through in the development of Release Line Items.
	- exposed to core router configuration (JunOS BGP, MLPS)
	- debugged elements of non-stop routing and other JunOS kernel 
	  assisted HA features
	- found workaround for hardware timing issue on IDE interface
	- general kernel debugging
	- actively involved in growing the Kanata kernel team by being part of 
	  the interviewing, selecting and mentoring of new members

Mar 2005-Nov 2006	Staff Software Engineer, Intel Corporation
	- Linux performance tuning
		- improved Unix domain socket performance on P4 significantly
	- Linux ACPI feature development

2003-2004	consulting, Achilles Internet
	- owner and operator of a small ISP
	- various sysadmin and kernel consultation tasks
	- developed C/C++ L2TP stack to terminate thousands of ADSL 
	  connections

Oct 99-Apr 03	Red Hat, Linux Kernel Developer
	- general kernel r&d, debugging
	- contributed to kernel development from Red Hat 6.2 to AS3
	- implemented the first aio subsytem for Linux (worked with 
	  Oracle to get 10-15% improvement in TPC benchmarks)
	- merged Large Filesystem Summit support
	- resolved customer filed bugs in vm, smp, filesystems, drivers
	- worked with customers and partners on projects to improve:
		- smp scalability
		- large memory system support
		- block io performance
		- vm performance
	- team lead on x86-64 port
	- strong community member for the Red Hat kernel development group 
	  and the larger Linux Kernel community
	- presented talks at the Ottawa Linux Symposium, Kernel Summit

Oct 97-Oct 99	Spellcaster Telecommunications, Software Development Consultant
	- Development of ISDN/T1 firmware
	- Development of Linux ISDN device drivers
	- Development of Multilink PPP stack
	- Development of integrated PRI+DSP Modem bank drivers
	- all around chasing of bugs from hardware to software issues in 
	  order to provide timely fixes to customers: this included changing
	  the firmware (C + i960 and m68k asm), drivers (Linux) and
	  programmable logic (ABEL)

May 97-Sept 97	University of Waterloo - CSG, Software Developer
	- Development of Java based front end to a map database
	- Development of Visual BASIC based front end to a map database
	- Creation of inventory system using Cold Fusion

Oct 94-Sept 97	Superaje Communications, Administration Consultant
	- Development of CGI scripts
	- Responsible for administration and development of
	  several Internet servers
	- Network installation (TCP/IP, SMB, Lanatastic)

July 93-Aug 93	Carp Systems International, Software Developer
	- Development of UNIX shell scripts for automated
	  coverage testing


Personal Characteristics:

	- Absorbs abstract concepts rapidly
	- Highly adaptive and innovative
	- Able to work effectively alone or in an open source environment
	- Excells in challenging environments