Situation: Client was a global IT service provider primarily focused on servicing large national retail brands. Company relied on a third-party scheduling system for day-to-day operations. I worked on extending this system via several key projects.

• Core product offering — Re-wrote this system to reduce the hardware cost and remove the need for per-client customization. My work reduced the typical onsite effort from 1–2 hours to as little as 20 minutes and created a significant new revenue source during the Covid-19 pandemic.
• Mobile App — Client relied on a third-party mobile app to track service visits. This app suffered an outage when a new version of iOS was released. I re-wrote the application as an MVC app in a short period of time.
• REST API project — Designed and wrote a REST API for inbound communication and a companion webhook service for sending outbound notifications to partners.
• SMS project — Designed and implemented an SMS notification service which would alert techs of upcoming appointments and allow them to provide ETAs and status updates via SMS.
• SQL Server remediation — Identified and remediated a significant number of issues with SQL maintenance, stored procedures, and ad-hoc queries. This action removed the need to upgrade SQL Server.

• Spent significant time mentoring other developers. Introduced client to cloud services, automated unit testing, CI/CD, and APM.

Situation: Client was a global IT service provider primarily focused on servicing large national retail brands. Company relied on a third-party scheduling system for day-to-day operations. I worked on extending this system via several key projects.

• Core product offering — Re-wrote this system to reduce the hardware cost and remove the need for per-client customization. My work reduced the typical onsite effort from 1–2 hours to as little as 20 minutes and created a significant new revenue source during the Covid-19 pandemic.
• Mobile App — Client relied on a third-party mobile app to track service visits. This app suffered an outage when a new version of iOS was released. I re-wrote the application as an MVC app in a short period of time.
• REST API project — Designed and wrote a REST API for inbound communication and a companion webhook service for sending outbound notifications to partners.
• SMS project — Designed and implemented an SMS notification service which would alert techs of upcoming appointments and allow them to provide ETAs and status updates via SMS.
• SQL Server remediation — Identified and remediated a significant number of issues with SQL maintenance, stored procedures, and ad-hoc queries. This action removed the need to upgrade SQL Server.

• Spent significant time mentoring other developers. Introduced client to cloud services, automated unit testing, CI/CD, and APM.

• a significant volume (~1 million documents per month — and increasing),
• an infrastructure well beyond end-of-life (both OTS software and hardware past EoL),
• a series of custom programs which had several traceability and reliability issues, and
• a proprietary data storage backend.

1. Re-wrote document processing system to track all steps of document processing.
2. Built a flexible electronic image processing framework which took existing and new client onboarding from weeks to minutes.
3. Migrated data storage to cloud.

• Increased visibility into document processing.
• Increased volume of document processing.
• Faster onboarding of new clients and lower costs.
• Established a path for removal of manual paper processing.

Responsible for developing a new, multitenant, cloud-based IoT platform to serve multiple vertical markets. Worked directly with the VP of R&D, CTO, and CEO. Designed, coded, and deployed:

• multitenant OAuth2, claims-based, identity system
• white-labelled, completely customizable UI
• highly flexible, performant, and secure telemetry processing system
• real-time device telemetry and control via a responsive website
• "closed loop" command and control of IoT devices
• public-facing API server for partner integrations
• measurement, monitoring, and auditing frameworks for operations
• swappable billing backend

Brought in to assist in onboarding a large client onto a relatively new SaaS platform. Primary focus was on developing new features and fixing significant platform bugs.

• Key features added:
  • Designed and built user self-service provisioning.
  • Implemented a user retention mechanism to remove users from the system after certain events/timespans.
• Key bugs fixed:
  • Refactored state management and caching mechanisms to be significantly more efficient — 30% performance improvement in key area of application.
  • Refactored two external vendor web service integrations.
  • Implemented exception tracking methodology to increase code and release quality.
• Key strategic work:
  • Performed and presented application functionality and performance gap assessment.
  • Drove migration from co-located application to Azure-native implementation. Significant cost reduction.
  • Worked with team leaders to hire new FTE development team.

• Large SaaS in-sourcing project — Led and delivered critical in-sourcing effort to migrate customer off legacy platform. Completed project in 1/6 of the originally estimated time.
  • Designed and developed WCF governance engine to throttle customer participation in loyalty programs and dynamically calculate customer reward pricing and eligibility.
  • Reverse-engineered and re-wrote existing set of web services without access to the source code.
  • Built custom Windows Workflow Rules Engine ruleset generator.
• Code and platform optimization
  • Refactored multi-tenancy code to reduce number of web sites per client to one — significant onboarding and operational savings.
  • Reduced SQL Server production utilization by 3 hours per day through code optimization, saving tens of thousands in planned upgrade costs.
  • Cut cold web site startup time by over half. Reduced server content payload size by 2/3.
• Team leadership
  • Introduced team to TDD and CI using TFS.
  • Drove effort to implement TFS 2012, moving team from customized Git while maintaining ability to release on tight schedules.