Senior Developer - Remote

• Sep 2022 - Present

* Design and development of APIs for the planning and tracking of water sourcing, recycling & disposal using a cloud-based SaaS platform.* Migration from the current Azure Active Directory to Azure Active Directory B2C and include support for Single Sign On (SSO) with external Identity Providers. * Design and development of APIs for the planning and tracking of water sourcing, recycling & disposal using a cloud-based SaaS platform.* Migration from the current Azure Active Directory to Azure Active Directory B2C and include support for Single Sign On (SSO) with external Identity Providers.

Software Architect, Contract - Remote

• Apr 2021 - Jul 2022

* Design and development of APIs for a Software as a Service (SaaS) system used in the monitoring and management of remote industrial asset telemetry (IoT).* The primary focus was migrating a legacy Silverlight/WCF application to ASP.NET Core API with a React front-end. This presented many challenges including: o The code lacked encapsulation, being based on a procedural structure. The result of this was business rules were scattered across the code base. o The code did not follow the SOLID design principles. o No unit or integration tests. o Development team was unfamiliar with coding practices such as encapsulation, SOLID, and automated testing.* To tackle these challenges, workshops were conducted to introduce the development team to: o Unit testing and Integration testing: benefits and best practices. o The SOLID design principles. o Domain Driven Design (DDD) tactical design patterns such as Aggregate Root, Entity, Value Objects, Domain Services, Domain Events, and Repositories.* Mentoring developers on the above best practices.* Integrated the legacy Basic Authentication to be overridden by Azure Active Directory B2C via the Authorization Code Flow with Proof Key for Code Exchange (PKCE) on a user-by-user basis. This allowed the selective migration of users from the legacy Basic Authentication to the more secure Authorization Code Flow with PKCE.

Solution Architect, Contract - Remote

• Dec 2020 - Sep 2021

* Design and development of a document management integration system.* The system was comprised of a Java-based API (Spring Boot), a VUE front-end (Typescript), and COSMOS DB as the persistence layer (Mongo interface)* The API was deployed as a containerized application on a Kubernetes managed cluster (Red Hat OpenShift)* Domain Driven Design (DDD) tactical design patterns such as Aggregate Root, Entity, Value Objects, Domain Services, Domain Events, and Repositories were utilized.* Authentication and Authorization was developed to use Azure Active Directory (OpenID Connect and the Authorization Code Flow with Proof Key for Code Exchange (PKCE)).

Senior Platform Specialist

• Mar 2019 - Jun 2020

Business and Technical Design of interfaces for a Commodity Trading and Risk Management System (CTRM) implementation. Business and Technical Design of interfaces for a Commodity Trading and Risk Management System (CTRM) implementation.

Senior Systems Analyst, Integration

• Jul 2013 - Nov 2018

Senior Systems Analyst

• Sep 2011 - Jul 2013

Software Developer

• Feb 1998 - Dec 2011