Embedded Files
Professional and Volunteer experiences, Interests and Hobbies that shape who I am and help tell my story.
My Thoughts on Equity:
I thrive in diverse environments, both professionally and in my volunteer work, where collaboration drives success. When individuals unite toward a common goal, the greatest strength comes from embracing different perspectives, fostering innovation, and creating lasting improvements. By ensuring that every voice is valued and every contributor is fully engaged, we build stronger teams, achieve meaningful results, and create opportunities for collective growth.
Professional
Professional
I bring 31 years of progressive experience as an IT Systems Engineer, developing technical solutions, optimizing infrastructure, and leading complex projects that align well with Principal Systems Engineer and Senior Technical Project Manager roles. My expertise spans network architecture, cybersecurity, cloud solutions, and enterprise systems administration, allowing me to drive strategic initiatives, enhance operational efficiency, and lead high-impact technical teams. With a proactive, solutions-driven approach, I consistently identify opportunities for innovation, automation, and system optimization that support business objectives and long-term success.
Volunteer
Volunteer
I have over 15 years of volunteer leadership with the Boy Scouts of America (BSA), serving as an active Scoutmaster. Through this role, I have mentored youth, organized community service projects, and fostered a culture of leadership, teamwork, and environmental stewardship. My experience coordinating volunteers, managing events, and guiding young leaders has strengthened my ability to collaborate effectively, solve complex problems, and drive mission-focused initiatives—skills that directly translate into my professional approach to IT leadership and project management.
Scrum Master XP
Scrum Master XP
As a Certified Scrum Master, I excel in Agile project management, facilitating efficient workflows and seamless collaboration across cross-functional teams. I thrive in dynamic environments, driving continuous improvement, iterative development, and adaptive problem-solving to optimize processes and enhance team productivity. My ability to remove obstacles, foster innovation, and align project goals ensures successful Agile implementations that deliver high-impact, scalable solutions.
Hobbies
Hobbies
I enjoy hands-on creativity, whether it's woodworking, 3D printing, or building intricate Lego creations with my kids. Woodworking sharpens my precision and patience, skills that directly enhance my problem-solving abilities in IT projects. My passion for technology and big-picture innovation fuels my strategic thinking and drives me to explore new solutions. Beyond tech, I’m an avid reader, always seeking knowledge, growth, and new perspectives to apply in both my professional and personal life.
I have extensive experience as an IT Systems Engineer, developing cloud solutions, database management, and software applications that align well with Principal Systems Engineer and Senior Technical Project Manager roles. My expertise in AWS, Agile methodologies, and cross-functional collaboration allows me to manage complex technical projects with precision. As a Certified Scrum Master, I have successfully facilitated Agile development processes, ensuring efficiency, innovation, and stakeholder value delivery. Additionally, my 15+ years of volunteer leadership in the Boy Scouts of America have reinforced my adaptability, leadership, and commitment to continuous learning. I am eager to apply these skills to drive product development, optimize workflows, and enhance organizational success in senior technical roles.
David A. Jellison - Extended ResumeSUMMARY I am a results-driven, innovative solutions architect with extensive experience in complex technical systems. I excel at managing multiple competing project requirements and time-frames while paying close attention to detail. I have a deep knowledge of Unix, networking, Microsoft, databases, virtualization, programming languages, and web hosting. I am A Certified Scrum Master.PROFESSIONAL EXPERIENCE
SR IT SYSTEMS ADMINISTRATOR, Parks Tacoma, WA December 2023 – March 2025 • Managed core infrastructure: Routing, Firewall, Physical Hyper-V hosts, Remote site tunnels, SSL VPN using Watchguard, Azure Devops, Entra, MFA, FortiGate, HP Enterprise, and Unify equipment. • Collaborated as part of a two-person team to design and manage large-scale temporary Wi-Fi deployments for public events. • Led team of diverse staff across all IT divisions through initial draft rewrite of Parks Tacoma IT policies using Agile sprints, team authoring, and peer reviews; Enabling leadership to secure board adoption after iterative senior leadership feedback. • Advanced desk-side and remote customer technology support. • Led a pilot project to validate and implement Proxmox virtual hosting environment, to show improved performance, resiliency, manageability, and cost controls over existing Hyper-V and VMware hosting environments. • Led legacy analog phone system final decommissioning and replacement with Mettel cell-based redundant service for critical operations, enabling reliability and fail over redundancy for elevator and lifeguard station analog lifeline phone service needs. • Served as a resource for agency IT teams, delivering innovative, non-traditional solutions. • Led selection and design of new Fortigate network equipment for full enterprise Network , Firewall and VPN upgrade and modernization. IT SYSTEMS ENGINEER, TPCHD, Tacoma, WA June 2018 – December 2023 • AWS cloud solutions architect and technical team leader for Washington States Online food worker card program, providing expert support, planning, and mentoring for AWS, Docker container and VMware hosting environments. • Consultative technical support provider for complex systems, ensuring that customer needs are met • Team lead for designing, Technical Project Management (Agile) and supporting multi-tenant database and web application hosting solutions on various platforms, mentoring coworkers on system administration and troubleshooting procedures • Expert in AWS Cloud Server (EC2) configuration and management, firewalls, VLANs, and TCP/IP protocols • Streamlined system-administration tasks by applying automation and scripting to repetitive tasksIT SPECIALIST 5, Watech, Olympia, WA Mar 2017 – July 2018 • Developed SQL, Dot.Net, and Winforms applications for WA State Office of Financial Management (OFM) State budgeting Line of business application. Managing OFM development priorities and requirements for feature enhancements and bug fixes. • Operated in an Agile + Scrum development sprint cycle as part of a three-developer team • Modify and Create advanced T-SQL Stored Procedures and vb.NET desktop application code to meet business needs • Conducted comprehensive security compliance assessments, adhering to WA State OCIO 141.10 and NIST standards to safeguard sensitive data. • Review and testing of results from penetration testing performed. • Drafting Gap Analysis and Creating action plan for mitigation from review findings. • Data analysis on budget and audit findings and report development for mixed skill audience. • Thrived in a high-pressure, fast-paced environment where precision was paramount for the Governor's budget office's success. Prioritized work items based on urgency and relevance, providing accurate estimates, and proactively seeking feedback when priorities overlapped. Held a Certified Scrum Master certification, adept at leading and facilitating Agile development processes, while actively pursuing a CEH (Certified Ethical Hacker) certification to further bolster Cybersecurity expertise.ITS5 / SR SYSTEMS INTEGRATION ENGINEER, Watech / CTS / DIS, Olympia, WA 2008 – Mar 2017I made significant contributions to the organization, demonstrating expertise in system administration, project management, and technical leadership. My key achievements and responsibilities include: • Expert Project Management: Led complex projects in the migration of production applications from Solaris with Oracle, Adabase, and db2 to Linux VMs within the Washington State VMware datacenter. These migrations encompassed critical systems, including the WaState Department of Health 'Child Health Statistics' and 'Child Profile' applications, as well as the WA State ListServ and SecureFileTransfer (SFT) services. I served as the primary project implementer, responsible for planning, execution, and successful delivery. • Multi-Tenant Database and Web Platform Expertise: Designed and maintained multi-tenant database and shared external/internal web platform hosting solutions across Linux, Windows, and Cloud platforms. I not only provided technical leadership but also mentored colleagues on system administration and effective troubleshooting procedures. • Networking and Infrastructure Mastery: Demonstrated proficiency in configuring and managing redundant Cisco UCS Blade environment, VMware datacenter, Horizon View VDI, storage environments, firewalls, VMware distributed networking, both separate and converged networking,VLANs, and TCP/IP sub-netting and protocols. This expertise ensured the reliability and efficiency of our systems and services. • Process Optimization: Implemented automation and scripting to streamline system-administration tasks, resulting in increased efficiency and reduced operational overhead. • ArcGIS Hosting Leadership: As the primary technical architect and implementation resource for the Washington State centralized ArcGIS hosting environment, I played a pivotal role in infrastructure build-out, ESRI software deployment, customization, configuration, and agency partner onboarding. This contributed to the successful launch of the multi-agency Washington State GIS service.
ITS4, DIS, Olympia, WA May 2007 - 2008 • Managed system administration, planning, and on-boarding for new and current dedicated server hosting customers • Engaged in capacity planning and requirements gathering for dedicated and shared server hosting projects and applications • Consultative technical support provider for complex systems, ensuring that customer needs are met • Expert in designing and supporting enterprise multi-tenant hosting solutions on various platforms, mentoring coworkers on system administration and troubleshooting procedures • Streamlined system-administration tasks by applying automation and scripting to repetitive tasksNWLMC TECH / Systems Administrator, Comcast, Puyallup, WA June 2000 – May 2007 • Designed and implemented national Video on Demand usage reporting application, and data driven monitoring solutions as a DBA • Monitored production SQL Server databases to ensure that they were available and performing efficiently to meet reporting expectations • Engaged in capacity planning and requirements gathering for projects and applications that may require SQL Server data solutions • Led planning, requirements gathering and design to build near real time status applications for Comcast Engineering and network operations. • Primary Administrator for all digital phone, end-user computers, networking, data center operations, engineering servers, AD, security and application environments, supporting business critical engineering, analytics and internal GIS Autodesk / Map-Guide design and as built Cable network construction drafting services / solutions. Database server administrator, Ms-SQL, Map-Guide and Spatial Net Oracle GIS database.Microsoft via Entex Information Services, Redmond, WA Desk Side Service Technician / Laptop Depot Tech 1996 - 2000 • Provided on site technical support for the Redmond Microsoft Campus • Maintain and service hardware and software for computers ranging from laptops to production servers. • Consistently meet productivity quotas and keep clear records of actions from troubleshooting though resolution • Support released and beta operating systems and applications • Service HP, Canon, Apple, Tektronix printers and plottersSeattle City Light, Seattle, WA Computer Technician (Intern) 1995 - 1996 • Provided On site technical support • Reconfigured systems using a standard ghost image • Assisted in deploying new and replacement systems throughout City Light • Repaired various types of computer systemsSKILLS / CERTIFICATIONS • CSM Certified Scrum Master • VCP VMware • CompTIA A+ • Microsoft MCP (NT Server) • AWS Cloud Architect • Unix: Linux, Solaris, Samba, Free BSD • Networking: SSH, TCPIP (IPv4), DFS, NFS, iSCSI • Microsoft: Windows Server, Windows Desktop • Databases: MsSQL, MySQL, Access, Oracle • Programming: SQL, VB script, VB .NET, Bash, Python, C#VOLUNTEER LEADERSHIP • Active volunteer in my community scouting program for the last 15 years. I am currently honored to be the Scoutmaster for a local BSA Troop. Through this organization I have experience managing a large group of adult volunteers and youth members. Utilizing a collaborative census building style of leadership, together we manage all aspects of the scouting program, from fundraising, budgeting, on-boarding, training, mentoring, advancement, team building, community engagement and environmental stewardship.
TECHNICAL CONSULTANT & SOLUTION ARCHITECT
Treinen (Colorado DNR ITN Response)—September 2025 - Current
Contract Engagement
• Served as the primary technical consultant and solution architect supporting Treinen’s bid response to the Colorado Department of Natural Resources (DNR) Invitation to Negotiate (ITN), partnering closely with the assigned Project Manager and Business Development and contracts team.
• Conducted comprehensive analysis of all client‑provided ITN materials, extracting technical, operational, and contractual requirements to shape a competitive and compliant proposal strategy.
• Collaborated closely with the Project Manager and Business Development on the drafting, refinement, and second‑round revision of the Statement of Work (SOW), contributing the majority of the technical content and integrating feedback from Treinen leadership, PMO, and contracts reviewers to ensure clarity, feasibility, and alignment with customer expectations.
• Developed detailed resource plans, task dependencies, and billable time estimates to support accurate project scoping and pricing.
• Translated high‑level requirements into actionable workstreams, deliverables, and technical approaches, ensuring alignment with industry best practices and Treinen’s delivery capabilities.
• Contributed to communication planning, stakeholder engagement strategies, and risk considerations to strengthen the overall proposal narrative and execution plan.
• Supported the PM and Business Development in shaping a cohesive proposal package that demonstrated Treinen’s technical competency, delivery readiness, and understanding of Colorado DNR’s mission and operational environment.
SR IT SYSTEMS ADMINISTRATOR, Parks Tacoma, WA December 2023 – March 2025 • Managed core infrastructure: Routing, Firewall, Physical Hyper-V hosts, Remote site tunnels, SSL VPN using Watchguard, Azure Devops, Entra, MFA, FortiGate, HP Enterprise, and Unify equipment. • Collaborated as part of a two-person team to design and manage large-scale temporary Wi-Fi deployments for public events. • Led team of diverse staff across all IT divisions through initial draft rewrite of Parks Tacoma IT policies using Agile sprints, team authoring, and peer reviews; Enabling leadership to secure board adoption after iterative senior leadership feedback. • Advanced desk-side and remote customer technology support. • Led a pilot project to validate and implement Proxmox virtual hosting environment, to show improved performance, resiliency, manageability, and cost controls over existing Hyper-V and VMware hosting environments. • Led legacy analog phone system final decommissioning and replacement with Mettel cell-based redundant service for critical operations, enabling reliability and fail over redundancy for elevator and lifeguard station analog lifeline phone service needs. • Served as a resource for agency IT teams, delivering innovative, non-traditional solutions. • Led selection and design of new Fortigate network equipment for full enterprise Network , Firewall and VPN upgrade and modernization. IT SYSTEMS ENGINEER, TPCHD, Tacoma, WA June 2018 – December 2023 • AWS cloud solutions architect and technical team leader for Washington States Online food worker card program, providing expert support, planning, and mentoring for AWS, Docker container and VMware hosting environments. • Consultative technical support provider for complex systems, ensuring that customer needs are met • Team lead for designing, Technical Project Management (Agile) and supporting multi-tenant database and web application hosting solutions on various platforms, mentoring coworkers on system administration and troubleshooting procedures • Expert in AWS Cloud Server (EC2) configuration and management, firewalls, VLANs, and TCP/IP protocols • Streamlined system-administration tasks by applying automation and scripting to repetitive tasksIT SPECIALIST 5, Watech, Olympia, WA Mar 2017 – July 2018 • Developed SQL, Dot.Net, and Winforms applications for WA State Office of Financial Management (OFM) State budgeting Line of business application. Managing OFM development priorities and requirements for feature enhancements and bug fixes. • Operated in an Agile + Scrum development sprint cycle as part of a three-developer team • Modify and Create advanced T-SQL Stored Procedures and vb.NET desktop application code to meet business needs • Conducted comprehensive security compliance assessments, adhering to WA State OCIO 141.10 and NIST standards to safeguard sensitive data. • Review and testing of results from penetration testing performed. • Drafting Gap Analysis and Creating action plan for mitigation from review findings. • Data analysis on budget and audit findings and report development for mixed skill audience. • Thrived in a high-pressure, fast-paced environment where precision was paramount for the Governor's budget office's success. Prioritized work items based on urgency and relevance, providing accurate estimates, and proactively seeking feedback when priorities overlapped. Held a Certified Scrum Master certification, adept at leading and facilitating Agile development processes, while actively pursuing a CEH (Certified Ethical Hacker) certification to further bolster Cybersecurity expertise.ITS5 / SR SYSTEMS INTEGRATION ENGINEER, Watech / CTS / DIS, Olympia, WA 2008 – Mar 2017I made significant contributions to the organization, demonstrating expertise in system administration, project management, and technical leadership. My key achievements and responsibilities include: • Expert Project Management: Led complex projects in the migration of production applications from Solaris with Oracle, Adabase, and db2 to Linux VMs within the Washington State VMware datacenter. These migrations encompassed critical systems, including the WaState Department of Health 'Child Health Statistics' and 'Child Profile' applications, as well as the WA State ListServ and SecureFileTransfer (SFT) services. I served as the primary project implementer, responsible for planning, execution, and successful delivery. • Multi-Tenant Database and Web Platform Expertise: Designed and maintained multi-tenant database and shared external/internal web platform hosting solutions across Linux, Windows, and Cloud platforms. I not only provided technical leadership but also mentored colleagues on system administration and effective troubleshooting procedures. • Networking and Infrastructure Mastery: Demonstrated proficiency in configuring and managing redundant Cisco UCS Blade environment, VMware datacenter, Horizon View VDI, storage environments, firewalls, VMware distributed networking, both separate and converged networking,VLANs, and TCP/IP sub-netting and protocols. This expertise ensured the reliability and efficiency of our systems and services. • Process Optimization: Implemented automation and scripting to streamline system-administration tasks, resulting in increased efficiency and reduced operational overhead. • ArcGIS Hosting Leadership: As the primary technical architect and implementation resource for the Washington State centralized ArcGIS hosting environment, I played a pivotal role in infrastructure build-out, ESRI software deployment, customization, configuration, and agency partner onboarding. This contributed to the successful launch of the multi-agency Washington State GIS service.
ITS4, DIS, Olympia, WA May 2007 - 2008 • Managed system administration, planning, and on-boarding for new and current dedicated server hosting customers • Engaged in capacity planning and requirements gathering for dedicated and shared server hosting projects and applications • Consultative technical support provider for complex systems, ensuring that customer needs are met • Expert in designing and supporting enterprise multi-tenant hosting solutions on various platforms, mentoring coworkers on system administration and troubleshooting procedures • Streamlined system-administration tasks by applying automation and scripting to repetitive tasksNWLMC TECH / Systems Administrator, Comcast, Puyallup, WA June 2000 – May 2007 • Designed and implemented national Video on Demand usage reporting application, and data driven monitoring solutions as a DBA • Monitored production SQL Server databases to ensure that they were available and performing efficiently to meet reporting expectations • Engaged in capacity planning and requirements gathering for projects and applications that may require SQL Server data solutions • Led planning, requirements gathering and design to build near real time status applications for Comcast Engineering and network operations. • Primary Administrator for all digital phone, end-user computers, networking, data center operations, engineering servers, AD, security and application environments, supporting business critical engineering, analytics and internal GIS Autodesk / Map-Guide design and as built Cable network construction drafting services / solutions. Database server administrator, Ms-SQL, Map-Guide and Spatial Net Oracle GIS database.Microsoft via Entex Information Services, Redmond, WA Desk Side Service Technician / Laptop Depot Tech 1996 - 2000 • Provided on site technical support for the Redmond Microsoft Campus • Maintain and service hardware and software for computers ranging from laptops to production servers. • Consistently meet productivity quotas and keep clear records of actions from troubleshooting though resolution • Support released and beta operating systems and applications • Service HP, Canon, Apple, Tektronix printers and plottersSeattle City Light, Seattle, WA Computer Technician (Intern) 1995 - 1996 • Provided On site technical support • Reconfigured systems using a standard ghost image • Assisted in deploying new and replacement systems throughout City Light • Repaired various types of computer systemsSKILLS / CERTIFICATIONS • CSM Certified Scrum Master • VCP VMware • CompTIA A+ • Microsoft MCP (NT Server) • AWS Cloud Architect • Unix: Linux, Solaris, Samba, Free BSD • Networking: SSH, TCPIP (IPv4), DFS, NFS, iSCSI • Microsoft: Windows Server, Windows Desktop • Databases: MsSQL, MySQL, Access, Oracle • Programming: SQL, VB script, VB .NET, Bash, Python, C#VOLUNTEER LEADERSHIP • Active volunteer in my community scouting program for the last 15 years. I am currently honored to be the Scoutmaster for a local BSA Troop. Through this organization I have experience managing a large group of adult volunteers and youth members. Utilizing a collaborative census building style of leadership, together we manage all aspects of the scouting program, from fundraising, budgeting, on-boarding, training, mentoring, advancement, team building, community engagement and environmental stewardship.
Questions?
Questions?
Contact [davidjellison@hotmail.com] to get more information on my experience prior to 1995
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