Portfolio | Kristina Haynes

About Me

I'm a Full Stack Engineer with over 15 years of experience building scalable web applications, optimizing database performance, and implementing DevOps workflows. I specialize in cloud infrastructure, containerization, and modern web development. When I'm not coding, I create technical documentation and tutorials to help others learn DevOps and full-stack development.

Work Highlights

Software Engineer

Jul 2018 - Present

Itential

Network automation company providing solutions for enterprise IT infrastructure management. Career progression through multiple roles from Network Automation Engineer to current Software Engineer role.

Developed automation solutions for network infrastructure
Designed custom React, Angular, and AngularJS applications for customers
Built CI/CD pipelines, managed UAT environments, and automated release processes
Full-stack development on the Itential Automation Platform (IAP/P6) product

ReactAngularNode.jsCI/CDDevOpsNetwork Automation

Software Engineer

Mar 2012 - Jul 2018

ClearCorrect

Led full-stack development of responsive web applications with 3D model visualization, managed SQL Server databases, and implemented JIRA workflows for the development team.

Built responsive 3D model viewer with jQuery and HTML5
Created reporting database to improve production performance
Integrated Zendesk Help Desk with ASP.NET applications

ASP.NETC#JavaScriptSQL ServerJIRA

Senior Consultant

Dec 2010 - Jan 2012

Quorum Business Solutions

Led support team for enterprise software solutions, mentored junior developers, and worked directly with clients to deliver custom C++ enhancements.

Led team solving client application issues with 100% satisfaction
Trained junior consultants on application architecture
Worked with Project Architect on new feature development

C++SQLTIPSTeam Leadership

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Featured Projects

A selection of my development work and technical demonstrations

GitLab CI/CD Pipeline

Production-ready CI/CD pipeline demonstrating automated build, test, and deployment workflows using GitLab. Features Docker containers, intelligent caching strategies, artifact management, code coverage reporting, and automated GitLab Pages deployment.

GitLab CI/CDDockerNode.jsJestDevOpsAutomationYAML

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Packer Demos

Demonstrations and examples of using HashiCorp Packer for creating machine images across multiple platforms. Includes examples for AWS, Azure, VMware, and more with best practices for image building and CI/CD integration.

PackerHCLInfrastructure as CodeAutomationDevOps

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Java Design Patterns

Java implementations of the classic GoF design patterns with working examples and explanations, based on Head First Design Patterns. Covers behavioral, structural, creational, and compound patterns.

JavaOOPDesign PatternsGoFSoftware Architecture

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Mermaid Demos

Collection of Mermaid diagram examples showcasing different chart types and visualization techniques. Includes flowcharts, sequence diagrams, Gantt charts, class diagrams, state diagrams, and entity relationship diagrams.

MermaidMarkdownJavaScriptDocumentationVisualization

Learn More View on GitHub

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