jkolhoff

Developed and maintained Terraform infrastructure for AWS environments. Led migration of Node.js microservices to Node 14 with comprehensive testing. Architected and implemented AWS services including Batch, Lambda, EventBridge, and DynamoDB. Executed Google Analytics migration from Universal Analytics to GA4. Converted JavaScript microservices and APIs to TypeScript for improved maintainability. Built scheduled FTP-based data synchronization systems. Maintained 100% unit test coverage across all codebases. Analyzed and refactored legacy Java applications and Oracle databases. Implemented XML transformation pipelines for customer data imports. Created image processing solutions using AWS Lambda. Contributed to React frontend development for major marine industry websites.

Client testimonial: 'As a lead developer, Joe successfully delivered a headless build that outperforms other leading case studies of headless platforms. Not only did Joe deliver on performance but the client was happy too.' Enhanced headless checkout implementations for ecommerce clients. Designed serverless architectures using Node.js and DynamoDB. Built full-stack solutions with Vue/Nuxt.js frontends and serverless backends. Implemented SSO solutions for Shopify headless clients to optimize performance. Led development of Hometown Hero CBD platform from concept to deployment. Developed curriculum scheduling systems with MongoDB and Node.js. Integrated third-party APIs into enterprise healthcare products. Optimized subscription retention systems using Jinja templates and Lambda functions.

Supported legacy Drupal 7 SEO Dashboard platform while transitioning to modern Node.js microservices architecture for product data migration. Implemented new frontend features for Drupal 7 platform. Developed REST API integrations for backend systems. Managed version control and collaboration using Git and GitHub. Created responsive frontend designs with SCSS. Integrated Auth0 Single Sign-on across multiple products. Built content migration tools in Node.js for Snowflake data extraction. Designed and implemented API endpoints for content management system.

Provided Drupal consulting services and implemented XML data extraction solutions. Developed JavaScript and CSS solutions for video handling and audio recording systems.

Led development on multiple Drupal products including ONSET, contributing to three new product launches from initial concept to deployment. Deployed Ubuntu EC2 instances supporting company's cloud migration initiative. Configured and maintained Apache and Nginx web servers. Managed S3 file storage systems using both S3FS and AWS SDK. Developed authentication tools for AWS API Gateway integration. Enhanced CloudFormation templates and Lambda function deployments. Created Docker proof-of-concept deployments for Drupal applications. Built Newscycle Connect customer portal from concept to production. Collaborated with remote team in India on content recommendation software. Implemented machine learning improvements using Mahout framework. Developed custom modules using PHP, JavaScript, jQuery, HTML5, and CSS. Architected ONSET Import module processing 16,000+ stories via REST API. Created classified ad import systems from JSON data sources. Designed responsive frontend themes and page layouts. Pioneered Drupal 8 and PHP 7 adoption prior to official releases. Mentored developers during Drupal 8 beta phase with limited documentation. Managed version control across projects using Subversion and Git. Resolved complex Drupal configuration issues and system errors.

Hybrid development and testing role focused on health engagement software with NoSQL database systems. Maintained TestComplete test suites using JavaScript. Developed Groovy scripts for SoapUI and REST API testing. Designed MongoDB queries using Java driver and shell interface.