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I am a senior full-stack software developer/architect with experience leading and developing cloud-based applications. I have experience in a wide range of techniques and technologies including but not limited to C#, RESTful services, Angular /React , relational and non-relational databases, and using both Azure and AWS.\n\nBeing professionally trained as a Scrum Master and having a keen interest in DevOps allows me to help teams remain Agile, increasing the speed to deliver business value whilst also maintaining high quality. Certification and continuous research into cloud technologies allow me to keep current.…I am a senior full-stack software developer/architect with experience leading and developing cloud-based applications. I have experience in a wide range of techniques and technologies including but not limited to C#, RESTful services, Angular /React , relational and non-relational databases, and using both Azure and AWS.\n\nBeing professionally trained as a Scrum Master and having a keen interest in DevOps allows me to help teams remain Agile, increasing the speed to deliver business value whilst also maintaining high quality. Certification and continuous research into cloud technologies allow me to keep current.

Joseph Washington

Full Stack Developer, Back-End Developer, Web Developer, +2

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I am a senior full-stack software developer/architect with experience leading and developing cloud-based applications. I have experience in a wide range of techniques and technologies including but not limited to C#, RESTful services, Angular /React , relational and non-relational databases, and using both Azure and AWS.\n\nBeing professionally trained as a Scrum Master and having a keen interest in DevOps allows me to help teams remain Agile, increasing the speed to deliver business value whilst also maintaining high quality. Certification and continuous research into cloud technologies allow me to keep current.…I am a senior full-stack software developer/architect with experience leading and developing cloud-based applications. I have experience in a wide range of techniques and technologies including but not limited to C#, RESTful services, Angular /React , relational and non-relational databases, and using both Azure and AWS.\n\nBeing professionally trained as a Scrum Master and having a keen interest in DevOps allows me to help teams remain Agile, increasing the speed to deliver business value whilst also maintaining high quality. Certification and continuous research into cloud technologies allow me to keep current.

Available to hire

I am a senior full-stack software developer/architect with experience leading and developing cloud-based applications. I have experience in a wide range of techniques and technologies including but not limited to C#, RESTful services, Angular /React , relational and non-relational databases, and using both Azure and AWS.\n\nBeing professionally trained as a Scrum Master and having a keen interest in DevOps allows me to help teams remain Agile, increasing the speed to deliver business value whilst also maintaining high quality. Certification and continuous research into cloud technologies allow me to keep current.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Principal Engineer at WPP

September 1, 2024 - Present

Principal Engineer responsible for defining the technology stack, setting the team's technical vision, and building a greenfield project management product. Led IaC using Terraform Cloud, designed services aligned with Azure Well-Architected Framework, and moved deployment to a GitOps model with ArgoCD. Spearheaded Kubernetes platform development, built backend RESTful microservices with C#/.NET 9, MongoDB and PostgreSQL, and implemented messaging with Azure Service Bus and MassTransit. Added Redis backplane with SignalR, created reusable NuGet packages, and developed micro frontends using Single-SPA and React. Enhanced local development with Aspire, championed TDD and Domain-Driven Design, and implemented reusable CI/CD pipelines with GitHub Actions and SonarQube. Mentored colleagues and conducted code reviews.

Principal Engineer at Publicis Groupe

August 31, 2024 - October 26, 2025

Led a Scrum-based team of onshore and offshore engineers to deliver microservices with dotnet core 8, EF Core, SQL Server, and Cosmos. Integrated SAP/Altair, upskilled team members, and introduced Domain-Driven Design to move away from anemic models. Built IaC with Bicep, securing resources with VNets and private endpoints, and established Azure DevOps pipelines. Guided POs and BAs in breaking down complex requirements, implemented React/Next.js frontend features, GraphQL-based BFF with Node.js, and containerized UI, BFF, and APIs. Introduced Devcontainers and TestContainers for consistent development and testing, explored OpenFGA for fine-grained permissions, and championed TDD and quality throughout delivery.

Senior backend engineer at Fortius

December 1, 2023 - October 26, 2025

Built backend RESTful APIs/microservices for billing, invoicing, subscriptions, catalog, and basket to support multi-product/multi-region scenarios. Implemented Backend-for-Frontend using App Gateway, and performed extensive tests with NUnit and SpecFlow. Created Azure DevOps pipelines for CI/CD, maintained high code quality with SonarQube, and leveraged dotnet core 6, Dapper, EF Core, SQL Server, Fluent Migrator, Docker, and MassTransit (Azure Service Bus).

Lead backend engineer at Sundown Solutions

February 2, 2023 - October 26, 2025

Led backend development to replace the BizTalk-based TfL ULEZ workflow with a cloud-native microservice approach on AKS. Built shared NuGet packages, authored Azure DevOps pipelines, upskilled Capita teams, reverse-engineered BizTalk into microservices, ensured backwards compatibility with CoreWCF, followed TDD outward-in testing, documented services with Mermaid, and implemented Scrum ceremonies to improve delivery.

Backend engineer at RTGS.global

October 31, 2022 - October 26, 2025

Developed multiple microservices using dotnet core C#, employing gRPC for duplex streaming and Service Bus/RabbitMQ for messaging. Hosted on Azure AKS and expanded Managed Application Definitions with Bicep. Created Azure Pipelines tasks to deploy Docker images from the client registry and ensured secure, scalable deployments.

Lead backend engineer at FitXR

February 28, 2023 - October 26, 2025

Led backend development for VR fitness platform, building RESTful APIs consumed by Unity. Implemented microservice decomposition and event-driven architecture using AWS EventBridge; integrated with Oculus APIs to award achievements. Built internal NuGet libraries and a templated repo generator to accelerate new microservices, and contributed to a CMS using React. Implemented personalization/recommendation features using AWS services; created local testing utilities with TestContainers.

DevOps Lead/Contractor at Deloitte

January 1, 2020 - October 26, 2025

DevOps lead within ITS, rolled out Azure DevOps across UK ITS, promoted DevOps practices, automated builds/deployments, and integrated security tooling. Migrated from on-prem VSTS to Azure DevOps and collaborated with Jira/TaskTop integrations; promoted Agile/Scrum and improved release processes.

Director/Senior Architect – Innovation and Transformation at Ernst & Young

March 1, 2022 - October 26, 2025

Leading architecture and transformation efforts within People Advisory Services. Evolving requirements with stakeholders, guiding cross-functional teams, and promoting DevSecOps practices using Azure DevOps. Led multiple projects including EY RESET, Workforce Managed Services Platform, Global Snapshots, and Azure infrastructure initiatives with Terraform/Bicep and Kubernetes.

Senior Developer/Manager – Mobility Technology Services, Tax at PwC

June 1, 2016 - October 26, 2025

Redeveloped UI from Web Forms to SPA (Angular/TypeScript), built internal REST API with EF Code First and OData, migrated from Oracle to SQL Server, and implemented a tax residency calculator. Promoted TDD, introduced Octopus Deploy for automated deployments, and reduced release times dramatically.

Senior Developer/Contractor – Mobility Technology Services, Tax at PwC

September 1, 2016 - October 26, 2025

Developed mobile solutions with Xamarin and Azure DocumentDB, contributing to tax-related applications and data services for mobility initiatives.

Tech Team Lead/Contractor – Innovation Team, Tax at Deloitte

March 1, 2018 - October 26, 2025

Led rapid prototyping in Angular/TypeScript, mentored teams across locations, promoted Scrum, and aligned projects with security and risk requirements. Drove migration toward containerization and cloud platforms, and facilitated cross-team collaboration.

Web Developer, Petroleum Services Group at Deloitte

April 1, 2012 - October 26, 2025

Developed and maintained internal/client-facing applications using .NET Web Forms and MVC; managed TFS/SharePoint environments and supported multi-project delivery within the Petroleum Services Group.