David Walker
Verified Expert in Engineering
Solution Architect and Developer
Coweta, United States
Toptal member since July 30, 2026
David is a principal software architect and technology leader with over 30 years of experience in cloud, DevOps, and digital transformation. He has led migrations of over 1,200 applications to Azure and reduced technical debt by 80% while at Blessed Beyond. David brings depth in Azure DevOps, GitHub, and Kubernetes across engagements for Fortune 100 clients and global product teams.
Portfolio
Experience
- .NET - 20 years
- eCommerce - 20 years
- DevSecOps - 20 years
- SQL Server - 20 years
- Sitecore - 20 years
- Azure - 16 years
- TypeScript - 14 years
- Terraform - 9 years
Preferred Environment
Azure DevOps, GitHub, Jenkins, Docker, Kubernetes, AWS IoT, Terraform, TeamCity, Figma, Jira
The most amazing...
...migration project I've led involved moving over 1,200 applications to Azure with full automation, reducing technical debt by 80% and cutting costs dramatically.
Work Experience
.NET, Sitecore, eCommerce, Azure, DevSecOps, and Platform Lead
Blessed Beyond
- Migrated over 1,200 apps to Azure per Microsoft, described as the 'largest commitment in Azure history'.
- Conducted well-architected frameworks assessments and reduced technical debt by 80%.
- Achieved 100% automation in deployments using Infrastructure as Code with Terraform, ARM, Bicep, Docker, and AKS.
- Upgraded Sitecore from version 7.2 to 10.2, implemented XM Cloud and OrderCloud, and integrated thousands of APIs and AI into Sitecore and applications.
- Implemented route optimization, language translation, and sentiment services using C#, .NET, Angular, Blazor, WebAssembly, React, Next.js, Vue, SQL Server, Postgres, Azure Data Factory, Master Data Management, Ollama, ElasticSearch, and Azure AI.
Principal Sitecore Architect, .NET and Dev Advocate and Evangelist
SearchStax
- Worked on the architecture and development of SearchStax Studio for Sitecore Plugin and SearchStax Studio Module for Sitecore 9-10 using Azure DevOps, C#, and VueJS.
- Served as the voice of the customer and developer to the product and development team.
- Delivered blog posts, feature enhancements, proof of concepts, and product roadmaps through cross-team collaboration and mentoring.
- Worked on multi-cloud SaaS solutions, supporting numerous customers and partners.
Principal Solution Architect
Clear Measure
- Led managed delivery and handled enablement, mentoring, training, and presales. Leveraged DevOps, DevSecOps, .NET, AWS, Azure, and Sitecore.
- Served as an influential contributor to the definition, enhancement, and expansion of CoE, the services catalog, and the product offering.
- Managed customer and provider relationships, exceeding customer expectations.
- Built an Azure DevOps extension to automate, audit, measure, compare, and report on DevOps enterprise maturity and security.
Senior Application Development Manager
Microsoft
- Mentored Fortune 1–100 enterprises on SDLC, DevOps, database/SQL, MDM, .NET, SharePoint, and Silverlight.
- Drove mission-critical best practices, operations, monitoring, and problem resolution across multiple clients.
- Served as a key contributor in evolving unique, contract engagements into a scalable global practice and offering catalog.
Experience
WorryFree.PSEG
http://worryfree.pseg.comDataXplorer.AI
I led a team of two to design and implement the DataXplorer.AI platform. Utilizing skills in Agile methodologies, React, TypeScript, and AI, I developed a mobile-friendly interface and automated CI/CD processes using GitHub/Terraform, deploying to Azure. I also handled API integration and prototyping to ensure a robust and scalable solution.
I successfully reduced development costs by $20,000 per month by bringing processes in-house. It achieved 90% mobile compatibility and 100% automated CI/CD deployment, significantly enhancing operational efficiency and user experience.
FanU.com
Education
Coursework Toward a Bachelor's Degree in Business Administration and Management
Penn Foster - Scranton, PA, USA
Coursework Toward an Associate's Degree in Computer Science
Tulsa Community College - Tulsa, OK, USA
Certifications
GitHub Admin
GitHub
GitHub Foundations
GitHub
Certified Kubernetes and Cloud Native Associate
The Linux Foundation
Hashicorp Certified Terraform Associate
Hashicorp
AWS Cloud Quest: Cloud Practitioner
Amazon Web Services
Advanced Certified Scrum Developer
Scrum Alliance
Microsoft Partner Network (MPN) Competency: Application Development in Cloud Platform, Azure DevOps
Microsoft Partner Network
Sitecore Certified Professional Developer – v 8.2
Sitecore
Certified Scrum Developer (CSD)
Scrum Alliance
Certified Scrum Master (CSM)
Scrum Alliance
Microsoft All-In-One Code Framework – Windows Azure/SQL Azure (Subject Matter Expert) SME Champion
Microsoft
Sitecore Certified API Developer Level 2 – v 5.1
Sitecore
Sitecore Certified Developer Level 1 – v 5.1
Sitecore
MCSD – Microsoft Certified Solutions Developer
Microsoft
MCAD – Microsoft Certified Application Developer
Microsoft
MCP – Microsoft Certified Professional
Microsoft
Skills
Libraries/APIs
React, Entity Framework, LINQ, Playwright, Vue, jQuery
Tools
Terraform, GitHub, RabbitMQ, Apache Solr, Seos, Azure Kubernetes Service (AKS), Jenkins, TeamCity, Git, Ansible, SonarQube, Auth0, Splunk, Figma, Jira, Apache, Apache Maven, Xcode, TFLint, Helm, Checkmarx, AWS IAM, Expo
Languages
C#, Bash, CSS, HTML, SQL, JavaScript, XML, XSLT, Bicep, Python, TypeScript, YAML, GraphQL, PHP, Java
Frameworks
.NET, Angular, Blazor, ASP.NET, Selenium, Next.js, Sitecore JSS, Windows PowerShell, NHibernate, Bootstrap
Paradigms
DevSecOps, Azure DevOps, Agile, Scrum, Model View ViewModel (MVVM), REST, DevOps
Platforms
Azure, Ollama, Azure IaaS, Azure PaaS, Sitecore Experience Manager Cloud (XM Cloud), Docker, Kubernetes, AWS IoT, Linux, New Relic, Amazon Web Services (AWS), Xamarin, SharePoint
Storage
PostgreSQL, MongoDB, MySQL, JSON, Elasticsearch
Other
Sitecore, eCommerce, ARM, SQL Server, Software Development Lifecycle (SDLC), Infrastructure as Code (IaC), SaaS, IIS, MVC Frameworks, LDAP, Business, Computer Science, CI/CD Pipelines, CMS, Single Sign-on (SSO), APIs, Content Migration, AI-assisted Development, Web Application Firewall (WAF), Architecture, Content Management Systems (CMS), Legacy Code, Migration, Governence, Headless CMS, Legacy Software, Publishing, Roadmaps, Taxonomy, WebAssembly (Wasm), Octopus Deploy, Okta, Artificial Intelligence (AI), Customer Data Platform (CDP), Azure AI, DynamoDb, Qdrant, JetBrains IDE, Infracost, Snyk, Veracode, SCIM, Azure Communication Services (ACS), Sitecore Managed Cloud, OrderCloud, OData
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