David Zientara

• Developed software using Phase One cameras and relevant supporting applications
• Provided support for these applications
• Revised, modularized and updated old code bases to modern development standards, reducing operating costs and improving functionality.
• Developed software for both desktop and mobile operating systems.
• Collaborated on stages of systems development lifecycle from requirement gathering to production releases.
• Collaborated with project managers to select ambitious, but realistic coding milestones on pre-release software project development.
• Gathered and defined customer requirements to develop clear specifications for project plans.
• Planned and developed interfaces that simplified overall management and offered ease of use.
• Coordinated with project management staff on database development timelines and project scope.
• Completed book within a 6 month deadline.

Wrote a series of three books for Packt Publishing covering pfSense, an open source firewall/router.

• Edited and proofread all texts with help of Word 2016
• Used pfSense 2.4 and Oracle Virtual Box to complete the assignment.
• Collaborated with cross-functional teams to produce accurate, high-quality documentation for customers.
• Completed thorough research into assigned topics.

• Worked with software development and testing team members to design and develop robust solutions to meet client requirements for functionality, scalability and performance.
• Optimized software to efficiently use memory and speed
• Ported software from UNIX to Windows
• Installed and configured software applications and tested solutions for functionality.
• Reviewed project specifications and designed technology solutions that met or exceeded performance expectations.
• Coordinated with other engineers to evaluate and improve software and hardware interfaces.
• Wrote highly maintainable, solid code for software system, forming core framework and earning consistent praise from subsequent developers since initial version.
• Adjusted design parameters to boost performance and incorporate new features.
• Revised, modularized and updated old code bases to modern development standards, reducing operating costs and improving functionality.
• Checked client code for bugs and weaknesses using approved troubleshooting methods.
• Conducted regression testing, analyzed results and submitted observations to development team.
• Discussed project progress with customers, collected feedback on different stages and directly addressed concerns.
• Created procedures for system monitoring, recovery, backup and optimization.