David Cassel

David Cassel Email and Phone Number

Owner and CTO and Certified MarkLogic Developer and Architect @ 4V Services, LLC
Downingtown, PA, US
David Cassel's Location
Downingtown, Pennsylvania, United States, United States
David Cassel's Contact Details
About David Cassel

Recruiters -- I run a contracting company specializing in Progress MarkLogic, Progress Semaphore, and Apache NiFi. If you have a client that is open to a C2C relationship, please contact us at info@4VServices.com. I'm not open to W2 positions. I am a professional software development leader with 20+ years of experience writing applications for both Government and Financial Services. I have worked both as a professional services consultant managing large-scale enterprise deployments, as well as part of a worldwide software sales organization where I use my development skills to demonstrate product value in key deals. With expertise in data mining, Big Data and analytics, I specialize in leading software teams using rapid application development via Agile methodologies. As a trusted member of sales and consulting organizations, I am relied upon to ensure success by delivering solutions that exceed expectations both on-time and within budget. To stay current, I learn and share knowledge through code reviews, blogging, and exploring new ways to solve problems.Specialties: Web development, XQuery, JavaScript, CSS, Java, PHP, SQL, Perl.Technical Leadership, Teaching, Scrum, Test Driven Development.

David Cassel's Current Company Details
4V Services, LLC

4V Services, Llc

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Owner and CTO and Certified MarkLogic Developer and Architect
Downingtown, PA, US
Website:
4vservices.com
Employees:
10
David Cassel Work Experience Details
  • 4V Services, Llc
    Owner And Cto And Certified Marklogic Developer And Architect
    4V Services, Llc
    Downingtown, Pa, Us
  • 4V Services, Llc
    Owner/Cto/Certified Marklogic Developer And Architect
    4V Services, Llc Nov 2018 - Present
    Downingtown, Pa, Us
    4V Services helps enterprise organizations to maximize the value of their MarkLogic investments, while applying an operations mindset to application development. We have a team of MarkLogic developers working with a variety of clients to address their Big Data needs. Client: Tech services business building a product on MarkLogic. Built NiFi flows for ingest and transformation; updated data model for MarkLogic; optimized queries. Client: Fortune 500 manufacturer. Building a data hub; optimized their reports to run 25% faster while fixing report-generation bugs. Introduced scripted testing to reduce errors. Apply correct indexes for best performance across TBs of data. Implemented NiFi flows, including building a custom processor.Client: a Fortune 500 biochem company. Working with the R&D department to prove out applications for a variety of departments, improving the availability of data while managing strict security requirements. My role is architectural guidance and some implementation work. Ingest data from SQL Server, Oracle, SharePoint.Client: Building materials wholesaler. Guide four developers in development of MarkLogic data hub.Client: Healthcare coordinator. Provide architectural guidance and mentoring to a team of developers. Implemented NiFi flows to load data to MarkLogic and run harmonization. Client: Publisher. Build NiFi flows and MarkLogic modules for a publishing application. Lead developer for a semantics-based POC. Client: a smaller company in the healthcare space. Through a small retainer contract, I provide answers to questions about how best to use MarkLogic. Building MarkLogic REST API extensions; scripting tests of XQuery code; optimizing queries; implementing custom NiFi processor; configuring NiFi flows. Earned MarkLogic 9 Developer certification in August 2019.
  • Villanova University
    Adjunct Professor
    Villanova University Aug 2017 - Dec 2018
    Villanova, Pa, Us
    Spring 2018, Fall 2018: Teach the graduate Database Systems course. Updated the course materials to include NoSQL, along with relational databases. Fall 2017: Teach the undergraduate Data Structures and Algorithms course.
  • Marklogic
    Sr. Staff Engineer
    Marklogic Oct 2017 - Nov 2018
    Burlington, Massachusetts, Us
    Established a new MarkLogic Labs group building tools on top of the core MarkLogic Server, focusing on rapid, iterative development; close collaboration with the field; providing feedback to Engineering; and ensuring that the projects are in line with company direction. Projects have begun as open-source projects built in the field. Add features, fix bugs, create tests, write documentation. Projects:- Data Hub Framework https://github.com/marklogic/marklogic-data-hub- Smart Mastering https://github.com/marklogic-community/smart-mastering-coreContributing as developer and Scrum Master, using XQuery, JavaScript, Java, and Gradle.
  • Marklogic
    Developer Community Manager
    Marklogic Sep 2014 - Oct 2017
    Burlington, Massachusetts, Us
    Expand the community of MarkLogic developers by introducing developers to MarkLogic, ensuring an easy on-ramp, and sustaining a vibrant community. Spoke at conferences and Meetups. Maintained the software, wrote and edited content for http://developer.marklogic.com, including code-heavy blog posts, tutorials, and recipes. XQuery, Server-side JavaScript, client-side JavaScript
  • Marklogic
    Technical Lead
    Marklogic Jul 2014 - Sep 2014
    Burlington, Massachusetts, Us
    Resumed focus on architecture and implementation of proof-of-concept and demo applications to highlight MarkLogic's capabilities. Contributed to full-stack implementations, guided team-wide architectural approaches, and provided technical help to a variety of developers on and off the team. XQuery, client-side JavaScript, Node.js, CSS
  • Marklogic
    Technical Manager
    Marklogic Jan 2012 - Jul 2014
    Burlington, Massachusetts, Us
    Promoted to manage a distributed team of employee and contractor software developers on the MarkLogic Vanguard team, building applications for the world-wide sales organization. Functioned as a Player/Coach, both managing the priorities and scheduling of application development activities and ensuring that milestones are reached, while also being a hands-on developer. Expanded the team by hiring nine new employees. Emphasized the use of new MarkLogic features and provided feedback to Product Management and Engineering. XQuery, client-side JavaScript, Node.js, CSS
  • Marklogic
    Presales Developer
    Marklogic May 2011 - Dec 2011
    Burlington, Massachusetts, Us
    Built custom proof-of-concept and demo applications to demostrate MarkLogic's value to customer missions as part of the newly formed MarkLogic Vanguard team. I worked with the sales team to gather requirements and drive success for both customer and company.XQuery, client-side JavaScript, Node.js, CSS
  • Marklogic
    Senior Consultant
    Marklogic Oct 2009 - May 2011
    Burlington, Massachusetts, Us
    Worked as a post-sales consultant implementing custom solutions built on MarkLogic Server. This encompassed all aspects of the software development life cycle (requirements gathering, SOW creation, design, implementation, testing and deployment) using an Agile development methodology. Working closely with MarkLogic's professional services management team and sales representatives, created customer solutions on time and to specification to ensure customer success.XQuery, Java, client-side JavaScript, CSS
  • Lockheed Martin
    Software Engineer, Staff
    Lockheed Martin Jul 2004 - Oct 2009
    Bethesda, Md, Us
    January 2008 - October 2009Architect, Developer, Scrum Master. Contributed to implementation of a social networking platform for the enterprise. Worked as a developer on Lockheed Martin's first open source release. Java, C#, JavaScript, PHP (WordPress customization)July 2004 - December 2007Project Lead and DeveloperProvided technical leadership and implementation for internal and customer projects based on natural language processing technology.
  • Community Trove, Llc
    Founder And Chief Engineer
    Community Trove, Llc Apr 2007 - Aug 2009
    Founded a company building a site for social networking with a purpose: Get what you need. Share what you have. Organized a team of part-time developers and built a site on LAMP. I dropped out of graduate school to pursue this idea. Although it didn't work out, I learned a lot about both technology and business.Linux, Apache, MySQL, PHP
  • Bnp Paribas Brokerage Services
    Sr. Programmer/Analyst
    Bnp Paribas Brokerage Services Jun 2001 - Jul 2004
    Paris, Fr
    Developed, maintained, tested, and supported software connecting traders to markets. Service required to be high-performance and high-reliability. Used C++ to interact with various market protocols, including FIX, CMS, eCBoT.
  • Cyberfone, Inc.
    Software Engineer
    Cyberfone, Inc. Jun 1999 - Jun 2001
    Software developer for a little startup trying to build a converged communications device (telephony + video + VOIP).C++, Java
  • Lockheed Martin
    Software Engineer
    Lockheed Martin Jul 1996 - Jun 1999
    Bethesda, Md, Us
    Develop natural language processing applications for government customers.C++

David Cassel Skills

Software Development Agile Methodologies Java Enterprise Software Marklogic Scrum Big Data Javascript Web Development Perl Sql Enterprise Architecture Xquery Software Engineering Test Driven Development Sdlc Databases Requirements Analysis Technical Writing Css Unix Teaching Object Oriented Design C++ Rest Community Engagement Design Patterns Nosql Xslt Node.js Representational State Transfer Apache Nifi

David Cassel Education Details

  • Drexel University
    Drexel University
    Computer Science
  • Northeastern University
    Northeastern University
    Computer Science
  • Villanova University
    Villanova University
    Computer Science
  • Salesianum
    Salesianum
    Academics

Frequently Asked Questions about David Cassel

What company does David Cassel work for?

David Cassel works for 4v Services, Llc

What is David Cassel's role at the current company?

David Cassel's current role is Owner and CTO and Certified MarkLogic Developer and Architect.

What is David Cassel's email address?

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What is David Cassel's direct phone number?

David Cassel's direct phone number is +165065*****

What schools did David Cassel attend?

David Cassel attended Drexel University, Northeastern University, Villanova University, Salesianum.

What are some of David Cassel's interests?

David Cassel has interest in Software Development, Chess, Reading, Hiking, Science Fiction, Entrepreneurism.

What skills is David Cassel known for?

David Cassel has skills like Software Development, Agile Methodologies, Java, Enterprise Software, Marklogic, Scrum, Big Data, Javascript, Web Development, Perl, Sql, Enterprise Architecture.

Who are David Cassel's colleagues?

David Cassel's colleagues are Dawn Cassel, Kevin Cassel, Felipe Vignon, Heather Cassel, Gregory Stula, Desmond Oliver.

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