Stack Developer System Architect

Robert Jay Holtzmann

Senior I.T. Manager / System Architect / Full Stack Developer

**** ********* **** *** *****, NV 89142 314-***-**** **********@***.*** Experienced, Innovative IT Leader, Developer & System Architect Drive technological innovation and operational efficiency and adept in translating technical concepts for non-technical stakeholders. Employ creative approach to architectural solutions. Delivers high-impact solutions that align with business objectives, resulting in significant cost savings, improved customer satisfaction, and enhanced security. Hands-on Programmer/Manager combining deep technical expertise with strong leadership skills to guide teams through complex projects and organizational changes, ensuring optimal performance and ROI in fast-paced, evolving environments. Strong presentation skills for executive-level audiences.

● Cloud Computing (GCP, AWS, Azure)

● Software Architecture & Design Patterns

● Full Stack Development / Database Management

● API Development & Management

● Mobile Application Development

● Telephony, Mobile and connected devices integration

● Agile Methodologies & Scrum

● Business & Process Analysis

● CI / CD Implementation / Management

● System Integration & Migration

● AI driven automation

● IT Security and Data Privacy & Best Practices

● IT Governance Frameworks (ITIL, COBIT)

Technical Skills

Programming languages: .NET, C#, JavaScript, NodeJS, TypeScript, JAVA, VB, XML, JSON, HTML/CSS, Jquery, SQL, Python, PHP, Angular, REACT, SOAP, .NET Framework, .NET Core, REST APIs, Apigee, Kubernetes, IKS, EKS,

Database: SQL Server, MySQL, PostgreSQL, Oracle, NoSQL,BigQuery, DynamoDB, Firestore, SSIS, SSRS

Cloud Computing Services: GCP, AWS (Architect Certification Pending), Azure Additional Skills: Certified Scrum Master, Atlassian Suite (JIRA, Confluence, Trello, OPSgenie and Bitbucket), Microsoft TFS, Docker, Postman, SiteTracker, ProjectWise, Microsoft PowerBI, Microsoft Dynamics, Test Driven Development, Github, Process Modeling (BPMN), data models

(DFD, ERD), OpenAI, Google AI and AI driven automation PROFESSIONAL EXPERIENCE

ADT, Las Vegas, NV

Senior IT Manager

6/2021 - 9/2024

Full Stack Developer, Business Analyst and Architect for cloud based, cross platform customer facing and internal applications. Managed FTE direct reports and contract employees across development, QA and Project Management teams. Senior Agile Management leader, Scrum Master, Product Owner and mentor. Managed Product Roadmaps and worked directly with Stakeholders and external teams to successfully support corporate goals and initiatives.

● Served as Lead Architect and managed development team for interfacing cloud based security partners into existing legacy systems developed in AWS, Enabling the acquisition of 2 new multi-million dollar (yearly) corporate clients.

● Spearheaded Sigchat/Alarm Messenger mobile application, cloud based processing enabling ADT customers to view security video directly on phone, request police, and cancel alarms without time-consuming traditional call from ADT Agents resulting in increased client satisfaction and reduced the number of "false alarm police dispatches" by 53% saving local municipalities millions of dollars.

● Managed teams during a period when ADT sold Commercial monitoring services to external companies and required considerable work on a tight timeline, enabling de-coupling functionality from existing systems.

● Spearheaded QA automation project saving considerable time and costs and offering faster resolution and better QA code coverage.

● Oversaw all projects / teams during migration from our legacy AWS and server based application towards a 100% GCP-based solution.

● Implemented Agile methodologies resulting in greater flexibility for stakeholder requests, increased team velocity and better team morale. THOMPSON COBURN, LLC, Saint Louis, MO

Senior Programmer Analyst

(7/2014 - 6/2021)

Lead Architect for large scale internal applications, b2b applications, databases and web services. Full Stack Developer for new internal and support applications. As Scrum Leader and Agile guru Lead department from Waterfall to Agile methodologies.

● Worked directly with Project Manager, Marketing Department and client community to architect and manage teams in developing a large-scale application for contact / opportunity management. This application utilized custom web services to integrate data with built in Microsoft Dynamic CRM functionalities fulfilling firm / client needs and wants.

● Served as Product Owner and Architect of custom services for migrating 11M+ documents from over- extended Microsoft Sharepoint system to new distributed system, ensuring tracking, accuracy, and minimal disruption.

● Analyzed, planned, coded and implemented custom applications, third party systems and packages integrations including development of applications, services and processes, facilitating data-sharing and gap coverage

● Served as key member of COVID response team, facilitating and managing firm-wide transition to remote work environment ensuring the firms ability to function during a national emergency.

WELLS FARGO, Saint Louis, MO

Programmer / Developer (Consultant)

7/2012 - 7/2014

Lead Architect and Full Stack Developer for financial applications, databases and web services.

● Architected and developed critical Transaction Services and Account Management applications using .NET, C#, and Oracle keeping Wells Fargo in line with changing regulations and stakeholder/client requests . All development adhered to an extremely high level of technical and security review required by Wells Fargo’s accuracy, reliability, reporting and security standards. LORD & TAYLOR, Saint Louis, MO

Lead Architect / Developer (Contractor/Consultant) 10/2012 to 07/2013

Architect and Full Stack Developer for Merchant Services applications written in .NET with an Oracle database backend. Managed a team of 4 developers, a business analyst and 2 tech support personnel.

● As Architect and lead developer of custom applications required to manage requisition, distribution and purchase order payment of stock required for all 4 retail stores, Lord & Taylor, Hudson Bay, Home Outfitters and Zellers, oversaw development from planning stages through delivery. These applications greatly increased inventory control in the U.S. and Canada, and automated much of the vendor re-order process. Additional Experience

TRANSTEM, LLC / MEDIWARE INC., Saint Louis / Kansas City, MO Product Manager / Technical Director

As the 3rd employee of a startup I was responsible for interviewing and observing health care experts in the area of Stem Cell and Bone Marrow transplant, translating technical solutions and leading a team of developers as direct reports. Led our team as early adopters of Agile Methodologies and worked with on-site technicians at hospitals in integrating our system with their existing EMR platforms. Under my technical and product leadership we built our company to the point of being purchased by Mediware, LLC.

UNIDEV / THE NET IMPACT, Saint Louis, MO,

Lead Architect/Developer

Lead Full Stack Developer of a team of 3 developing custom e-commerce and financing applications for Bass Pro Shops and Tracker boats. EPONYMOUS, INC, Saint Louis, MO

Technical Director

Provided technical guidance to a Public Health company, including all development, infrastructure and IT planning and purchases.

UNITED STATES AIR FORCE, Primarily Overseas

Air Traffic Control Radar Technician

Education and Certifications

Bachelor of Science (BS), Communications, University of Maryland Okinawa, Japan Associates of Arts (AA), General Curriculum, University of Maryland, Okinawa, Japan Associate of Applied Science (AAS), Electronics, Community College of the Air Force, Biloxi, Mississippi

Scrum Leader Certification - 2024

Software Product Management Specialization, University of Alberta, 2023 AWS Architect - Certification Pending

Contact this candidate