David C. Sisk

9900 Rimwood Court, Raleigh, NC 27613

Email - dsisk@nc.rr.com

Accomplished professional with a 20+ year track record of success at delivering results in both Fortune 1000 corporations

and venture-backed startups, including end-user businesses, independent software vendors, and SaaS companies. Unique

ability to maintain and leverage business acumen while delivering both technical and business-oriented results.

Note: NOT open to relocation. Please do not contact me regarding positions that require relocation.

Experience Summary

Data Architecture, database administration, database design, data modeling, replication,

ETL, data integration, distributed data technologies. Strong ability to fit the best solution

to extremely difficult data-related problems.

Cloud technologies and database virtualization, including Amazon MySQL RDS, Amazon

Redshift, Vertica and Cassandra in AWS, EBS and ephemeral storage, and VPC’s.

“Big Data” technologies including Vertica, Cassandra (NoSQL), and MongoDB

(NoSQL), plus exposure to Clustrix, NuoDB, VoltDB, Hive/HiveQL/Hadoop/Amazon

EMR.

Production support, IT operations, new development, database engineering, software

lifecycle, Agile process, etc.

Vertica6 (columnar BI/analytics), Oracle7–Oracle11g RAC, DB2 v7-v9, DB2/400 iSeries,

SQLServer, MySQL5.x, PostgreSQL8.x-9.x, Greenplum 4.2 , Apache Cassandra, and

MongoDB database administration, performance tuning, backup/recovery, encryption,

high availability and failover/standby, parallel technologies, change management,

fine-grained security and auditing, etc. Strong talent in SQL performance tuning and

high-availability/recovery across DBMS platforms. Some hands-on with other columnar

analytical/DW/BI databases including InfiniDB, InfoBright, Amazon Redshift, and

MonetDB. Some hands-on with NewSQL databases Clustrix and NuoDB, and familiar

with TransLattice Elastic Database (TED) and VoltDB.

Provide pre-sales consulting, training, authoring of technical and tactical product and

competitive collateral, delivering sales presentations, driving demonstrations, mentoring,

answering technical questions, troubleshooting client issues, responding to RFP’s, etc.

Ability to understand business problems, formulate solutions, translate between business

and technical language.

Programming languages Oracle PL/SQL, DB2 SQL-PL, SQLServer T-SQL, Perl,

Unix/Linux shell scripts, Windows shell scripts, VisualBasic 5.0 and 6.0, RPG/400, ANSI

C, Java.

Other tools: Infopump, Oracle transparent gateways, IBM InfoServer, DataMirror, Erwin,

ER/Studio, PowerDesigner DataArchitect, IBM DataStudio, PeerDirect, DT/Studio,

Sunopsis, Oracle Enterprise Manager, RMAN, DB2 Control Center, IBM Optim,

BusinessObjects, Cognos, Microsoft DTS, Talend Open Studio, Pentaho, DbVisit

Replicate, NetApp, VMware, Scriptella ETL, Tableau, etc.

Ability to communicate, negotiate, influence, and interact successfully with people.

20 years

2 years

2 years

20 years

20 years

5 years

20 years

20 years

20 years

30+ years

Patent Submissions:

“Database-level encryption architecture for at-rest data to enable functionality and performance.”

Primary inventor: Dave Sisk - Intuit, Inc. Feb 14, 2011.

Open Source Projects:

Project founder and administrator for PostgresCDC: Simple and effective Change Data Capture solution for PostgreSQL

offering low overhead and a straightforward ETL-friendly presentation of changed rows.

URL: http://www.pgfoundry.org/projects/postgrescdc/

Experience Details:

DATA ARCHITECT & SENIOR DATABASE ADMINISTRATOR: Appia Inc, Durham, NC, 2/2013 – current.

Provided data architecture, data infrastructure, and database administration expertise in support of Appia’s mobile device

ad-serving operations.

  · Rescued the SQLServer2008 R2 Cluster environment from falling over under extreme ad-serving load of 100M+

transactions per day. First order of business: change the primary key of the busiest table containing 1.5 billion rows

from INT to BIGINT with no ad-serving down-time. Implemented various other improvements in tuning, indexing,

data archiving and roll-off, and periodic voluntary fail-over.

  · Replaced the SQLServer2005 analytics database with Vertica6.1 columnar analytics database deployed into AWS,

re-designed the analytics schema to a simplified dimensional model (aka “star schema”), and provided consulting to

engineering around schema design and query tuning. First evaluated Vertica, Calpont InfiniDB, and Amazon Redshift,

and selected Vertica. Data load times dropped from hours to minutes, and analytical query execution times dropped

from minutes or hours to seconds, even as data has continued to accumulate.

  · Introduced Tableau into Appia’s business operations. Business users now have dashboards and online query capabilities

that previously required an engineering or ops request. Tableau + Vertica is a powerful combination that delivers

actionable information into the hands of business decision-makers in seconds rather than days…it’s been called a

“game-changer for Appia” by the business users.

  · Implemented Cassandra NoSQL multi-node multi-region datastore for 1st pass mobile device user profiling data

estimated to grow to around 5 billion rows.

  · Researched and evaluated several NewSQL solutions for integration into Appia’s data infrastructure to support future

user profiling, mediation, and real-time bidding initiatives.

  · Hired one additional SQLServer DBA for operational support.

SENIOR DATABASE ADMINISTRATOR: Lulu.com, Raleigh, NC, 4/2011 – 2/2013. Provide database administration

and database engineering consulting services for product offerings on Postgres8.3/8.4, MySQL 5.0, Oracle11R2, and

MongoDB v1.3, including backup and recovery, physical architecture, replication, stand-by configuration/high

availability/failover, SQL performance tuning, schema design and deployment consultation, exposure to database storage

snapshotting via NetApp, automated Nagios monitoring, data lifecycle management, internal ETL & BI consulting, and all

other endeavors database-related.

  · Support, tune, and provide schema design consulting to large-scale Postgresql 8.3/8.4 databases for legacy e-commerce

site, including SQL performance tuning, high-availability stand-by configuration, NetApp storage snapshot processes,

monitoring, data lifecycle management, and ETL processes. Strong focus on SQL performance tuning, resulting in

orders of magnitude improvements in tuned queries, and minimal down-time schema management/change deployment,

leading to reductions of site maintenance downtime.

  · Configure, install, support, tune, and otherwise own new Oracle11R2 environment for new e-commerce site, including

initial deployment, physical architecture, backup/recovery, SQL performance tuning, replication, high-availability

stand-by failover configuration, and ETL processes.

  · Support, configure, troubleshoot, and performance tune MySQL database infrastructure, including backup/recovery,

high-availability replication/standy configuration, snapshots, SQL performance tuning, data lifecycle management, and

schema management consulting.

  · Own physical architecture, administration of new MongoDB deployment to support new publishing site.

  · Act as consultant to BI/reporting team and product engineering in support of dimensional/star schema data modeling,

ETL processes, Business Intelligence technical infrastructure, and operational management.

  · Introduce Change Data Capture and Talend ETL data integration tooling and self-serve Business Intelligence

infrastructure into the organization, supporting proof-of-concept and deployment efforts, as well as defining the

high-level architecture.

  · Examine and benchmark BI columnar database products, such as InfiniDB, InfoBright, and open-source MonetDB.

DATABASE ENGINEER: Intuit Health Group (formerly MedFusion), Cary, NC, 3/2010 – 4/2011. Support

architecture, design, development, and evolution of databases for Practice/Patient Portal and Personal Health Information

Software-as-a-Service (SaaS) offerings. Most significant accomplishment: high-performance high-security database-level

encryption methodology.

  · Support, tune, and evolve design of large-scale Postgresql 8.3 databases for Practice/Patient Portal SaaS offering.

  · Architect, implement, tune, troubleshoot, and otherwise own database-level encryption technology for Personal Health

Record SaaS offering, including native Oracle11 encryption technology and database-level RSA encryption technology.

  · Install, configure, support, and tune Oracle11R2 RAC environment for Personal Health Record product development.

  · Interface with developers and other stakeholders on requirements, modifications, and enhancements under the scope of

an Agile development process.

Unemployed: 2/2009 - 2/2010.

IT SPECIALIST – PRE-SALES TECHNICAL SUPPORT - INFORMATION MANAGEMENT: IBM Mid-Atlantic

Technical Sales Team (face-to-face field role), Raleigh, NC, 10/2008 – 2/2009. Engage with clients in person, via phone,

and over email to support the sales process.

  · Respond to DB2, Optim, and DataStudio technical questions, and demonstrate functionality as necessary.

  · Answer Oracle9i-Oracle11g and SQLServer2000-2004 competitive and technical questions.

  · Deliver “Proof Of Technology” hands-on engagements, demonstrations, and training.

  · Engage in relationship building, opportunity identification, and architecting the best solution.

IT SPECIALIST – PRE-SALES TECHNICAL SUPPORT - INFORMATION MANAGEMENT: IBM Techline,

Raleigh, NC, 10/2007 – 10/2008. Engage remotely in information management sales opportunities by providing support

for technical and functional questions, remote presentations, licensing questions, and RFP response support. Most

significant accomplishment: successfully championed RFP response practice for InfoServer ETL opportunities.

  · Technical resource for field sales providing expertise on IBM IM products.

  · Responded to RFP technical sections for DB2 v8-v9, Information Server (ETL), Infosphere Warehouse (DW),

Infosphere CDC (ETL), and Optim (archiving and test data management).

  · Performed hands-on demos, technical Q&A sessions, etc., over web and audio conferences.

  · Successfully cultivated RFP response practice in Techline for Information Server ETL RFP’s.

IT SPECIALIST – COMPETITIVE SALES TECHNICAL SUPPORT - INFORMATION MANAGEMENT: IBM

Competeline, Raleigh, NC, 08/2004 – 10/2007. Engage remotely in competitive information management sales

opportunities to assist field reps in defeating and displacing competitors. Most significant accomplishment: grew tactical

competitive library and effectiveness of tactical competitive practice which led to closing over $46 million in data

management revenue.

  · Develop technical expertise in Information Server, including DataStage (ETL), QualityStage (Data Quality), MetaStage

(Metadata management), Infosphere CDC (ETL), Cognos (reporting) and Optim (archiving and test data management).

  · Provided competitive coverage encompassing Data Management and Business Intelligence (Oracle, Microsoft,

MySQL, Sybase, Teradata, Postgresql), Content Management (Documentum, prior FileNet, Oracle/Stellent, Microsoft,

Mobius, Vignette, Hummingbird, etc.), and Data Integration/Replication/ETL (prior Ascential, Informatica, Ab Initio,

DataMirror, PeerDirect, Oracle, Sunopsis, GoldenGate, SAS DataFlux, BusinessObjects, etc.).

  · Responded to competitive assistance requests with high-quality consultative technical leadership, detailed collateral,

and highly effective sales tactics.

  · Delivered competitive presentations to clients over web-conferences as needed.

  · Advised reps on possibilities to expand scope of opportunity.

  · Performed hands-on technical comparisons of competing products.

  · Authored extensive tactical competitive collateral (40+ CompeteNote documents).

  · Received IBM Bravo Award for authoring technical library of pro-DB2 anti-Oracle RFP questions.

  · Over 600+ sales engagements contributing to $46M+ in revenue over 3 years.

DATABASE CONSULTANT: Agile Technologies, Bridgewater NJ (Data warehouse project at Builder’s Mutual Insurance

in Raleigh, NC), 05/2004 – 08/2004. Most significant accomplishment: engineered solid and reliable ETL and change

data capture architecture and framework. Completed logical and physical database design and modeling (using Erwin)

for data warehouse implementation on iSeries DB2 V4R3 and SQLServer2000, completed design and prototype of ETL

architecture (iSeries trigger-based data capture, MS DTS-based ETL), and provided architectural guidance on

BusinessObjects universe metadata development.

PRODUCT DATA ARCHITECT, DEVELOPMENT DBA, & TEAM LEADER: ATEB Inc., Raleigh, NC, 08/2002 –

05/2004. Part of project team to create the next-generation commercial Pharmacy Management Solution on Oracle10g (on

AIX and Linux) and DB2 v8 (on AIX and Linux). Most significant accomplishment: engineered and implemented

enourmously complex distributed database replication architecture.

  · Engaged in pre-sales technical support to satisfy customer technical due diligence requirements.

  · Designed product data architecture and created logical and physical database models (using ER/Studio).

  · Designed distributed data and replication architecture to support distributed business requirements (using PeerDirect).

  · Lead performance and scalability benchmarks for database and replication software infrastructure.

  · Established and managed Oracle Partnership, and assisted with realization of IBM partnership.

  · Performed typical DBA duties (software management, config, backup/recovery, etc.)

APPLICATION DBA CONSULTANT: GlaxoSmithKline, RTP, NC, 04/2002 – 08/2002. Provided production and

development support of PeopleSoft 7.51 HRMS/Oracle8 installation, and Peoplesoft 8/Oracle9 upgrade planning (on

Solaris8).

DATABASE ARCHITECT/DEVELOPMENT DBA: EHC Technologies, Raleigh, NC, 02/2001-03/2002. Part of

project team building the next-generation commercial home health care clinical and billing systems on Oracle9i (on

Solaris7/8 and Linux) and SQLServer2000. Most significant accomplishs: built and streamlined production database

change management process that cut build deployment time by 90+% and improved accuracy by 90+%, and engineered

database encryption architecture.

  · Billing System Team: Contributed database expertise to support development of commercial web-based medical

billing system:

  · Provided database consulting for logical database design and modeling (using ER/Studio), and data

synchronization/replication between clinical and billing.

  · Provided physical database modeling, schema management, performance tuning, etc., for development, test, and

production databases.

  · Engineered database production change management and deployment process (using Embarcadero Database

Change Manager).

  · Technical Support for Business Development and Marketing:

  · Established EHC Technologies Oracle partnership.

  · Contributed to technical due diligence processes for potential strategic partners and investors.

  · Provided consultative support to BusinessObjects universe metadata development.

  · Performed typical DBA duties (software management, config, backup/recovery, etc.)

DATABASE ARCHITECT/DEVELOPMENT DBA: Nortel Networks - Reliametrics business unit, RTP, NC,

09/1999-03/2001. Contributed database expertise to development of a commercial software reliability assessment data

warehouse product on Oracle8 - 9I (on Solaris7 and HPUX10/11). Most significant accomplishment: over three product

releases, improved analytical query performance by 3 orders of magnitude through production tuning and design

improvements.

  · Provided logical and physical database design, implementation, schema management, and ETL process architecture

and implementation. Migrated product from a hybrid design to a 3NF ODS + Dimensional model.

  · Achieved design-related performance improvements cumulating to greater than 1000-fold.

  · Performed typical DBA duties (software management, config, backup/recovery, etc.)

DATA ARCHITECT, ORACLE PRODUCTION and DEVELOPMENT DBA: Rhone-Poulenc Ag Company (now

Bayer CropScience), RTP, NC, 11/1996-09/1999. Took ownership of RPAG Oracle database environment (Oracle7 –

Oracle9i on AIX and WindowsNT). Most significant accomplishments: brought Oracle database environment from ~60%

availability to 99.99% availability, and established enterprise BI data architecture.

  · Provided Oracle performance tuning, recovery, storage management, and other typical DBA duties.

  · Managed enterprise-centric decision support systems data architecture.

  · Created methodology for cross-platform data extraction/transformation/loading and data quality assessment (ETL and

Data Quality, BusinessObjects universe metadata development and reporting architecture).

  · Supported SAP/Oracle database environment, BusinessObjects reporting environment, and functioned as backup SAP

Basis Administrator.

  · Received over 30 peer recognition awards, 2 innovation awards, 2 manager-initiated recognition awards, and 1

director-initiated recognition award.

FINANCIAL SYSTEMS ANALYST: Rhone-Poulenc Ag Company, RTP, NC, 02/1995-11/1996.

  · Assumed maintenance/enhancement ownership of a VB/Oracle-based financial decision support application.

  · Produced approximately 40,000 lines of AS/400 code for custom general ledger system.

PROGRAMMER/ANALYST: Royal Home Fashions, Durham, NC, 08/1993-02/1995.

  · Supported and customized AS/400-based distribution solution and carton sortation system.

  · Installed and supported IBM communication hardware, RF equipment, and bar-code label printers.

Top 5 Personal Strengths (results of Gallup Organization’s Strengths Assessment)

Strength

Definition

Analytical

Natural tendency to gather details and

understand cause and effect

relationships.

Communication Natural ability to communicate well

verbally and in other forms.

Ideation

Maximizer

Strategic

Natural ability to grasp abstract concepts

and formulate complex ideas.

Natural tendency to cultivate excellence

in self and others. General focus on

growing strengths rather than eliminating

weaknesses.

Natural tendency to examine how the

details impact the big picture. Able to

anticipate outcomes and make relevant

decisions.

Relevance

Can ask the right questions to accurately identify

customer pains and their causes, and can evaluate

benefits/drawbacks of formulated options.

Can establish rapport, explain complex details in simple

terms, deliver polished presentations and white papers,

etc.

Can easily build the vision of a solution, even in cases

where the need and/or solution is complex.

Strong personal motivation to succeed, and ability to

best utilize available resources given options and

limitations.

Can anticipate business impacts of technology

decisions, and identify both tangible and non-tangible

benefits as they relate to the specific case.

Education

B.S. in Industrial Engineering, North Carolina State University, June 1993.

Professional Certifications

Oracle certified in Oracle Database Administration, IBM certified as IT Specialist in DB2 Database Administration.

REFERENCES

Available upon request.