John Hoff Email & Phone Number

60,000+ subs. I make educational videos and livestreams about crypto. I talk about new cryptos to buy and investment strategies.

Plano, Texas, US

Develop APIs using Nodejs and AWS serverless technologies: Lambda Functions, State Machines, DynamoDB, S3, CloudFormation, and IAM.

Mountain View, WY, US

• Develop Web3 DeFi dapps on the Binance Smart Chain that can analyze 100,000+ tokens on ETH and BSC.
• Generate social audits that contain 100 tokens and aggregated portfolios for any token’s top 50 wallets.
• Design 8 Node.js Lambda microservices that consume REST and GraphQL APIs for blockchain data.
• Code React applications that use API Gateway and AWS serverless to fetch data for 40+ active users.
• Added DynamoDB caching to speed up token searches from 3 minutes to 2 seconds.

Richfield, Minnesota, US

• Develop Alexa Skills as Node.js Lambda functions for users to buy electronics using voice commands.
• Integrated internal content management APIs to support dynamic content, saving developers at least 4 hours per week.
• Added curbside and in-store pickup options to the purchasing workflow which increased Alexa sales by 15%.

Chapel Hill, North Carolina, US

• Integrated external rewards API data with our Node.js Lambda functions that uses AWS SES & SNS to send gift cards to consumers.
• Designed Dynamo & S3 databases in addition to creating a React content management application for admins to update text and images.
• Refactored our provider search web tool by writing reusable components and reducing 30% of the code.
• Wrote Terraform scripts to build and change infrastructure as code on AWS.

Paris, Paris - Issy-les-Moulineaux, FR

• Achieved two AWS certifications and showcased the serverless framework to other Sogeti consultants learning about AWS and cloud computing.

Morris, MN, US

• Assisted computer science faculty prepare labs, homework, and exams for a JavaScript and advanced spreadsheet calculations course that had 30 students.
• Mentored students one-on-one by answering questions, clarifying feedback, and providing guidance that improved their scripting and problem solving skills.

Morris, MN, US

• Worked on a 3-person agile team to update features for an AngularJS web application through collaboration with our client who was using the undergraduate research symposium management tool.
• Development included pair programming, code reviews, refactoring, and improving JavaScript test coverage from 65% to 85% using Karma and Jasmine.

St. Louis, MO, US

• Worked on a Java-based Spring Boot application in two-week sprints on an agile Scrum team that recently transitioned from waterfall.
• Reduced the cognitive complexity of legacy code by 30% using SonarQube. Improved the runtime complexity of the string parser’s algorithm from O(n3) to O(n).
• Designed UI mockups for an internal database administration tool that was implemented with React including automated testing.