Aricin Rotarius

linkedin.com/in/aricingithub.com/aricin

Skills

Proficient

JavaScriptTypeScriptPythonJavaHTMLCSSNode.jsNext.jsReact.jsDjangoFlaskREST APIsSQLGitOOPSEOWeb Vitals

Working Knowledge

CSwiftVue.jsFastAPIDockerAWSTerraformServerlessGraphQLNoSQLMongoDBPostgreSQLMySQLFirebaseAgileScrumShape Up

Experience

Software Engineer

Landtrust

Jan 2024 – Dec 2024

Remote

  • Developed programmatic SEO services with Next.js and React, generating a total of 10,000 static pages to drive customer and supply acquisition.
  • Integrated SEO services with Strapi CMS and Algolia, implementing data caching for efficient build times, and automating deployments with AWS CloudFront, S3, API Gateway, and GitHub Actions.
  • Implemented RESTful APIs in TypeScript using design patterns and following best practices for data validation and error handling.
  • Built GraphQL endpoints in AWS AppSync using the Serverless Framework, integrating with DynamoDB.
  • Led a performance optimization project resulting in 37% faster load times and 49% faster interaction times.
  • Enabled data-driven performance optimizations by adding web vital instrumentation, creating GA4 reports, ingesting performance metrics into data warehouse, and writing advanced SQL queries in Postgres.
  • Added Lighthouse audits to CI/CD pipelines to prevent future performance and accessibility issues.
  • Promoted continuous improvement by introducing new ideas and initiating engineering discussions.

Software Engineer

Squidly, Inc.

Jun 2023 – Dec 2023

Lake Forest Park, WA

  • Reduced infrastructure costs by 44% by refactoring existing services to a serverless architecture.
  • Wrote infrastructure as code for AWS API Gateway, Step Functions, and Lambda using the Serverless framework.
  • Built an OpenAI-integrated chatbot in Python, leveraging augmented prompting and GPT function calling to implement chat logic.
  • Established websocket chat streaming using AWS Lambda and API Gateway.
  • Built and deployed a Vue.js single-page application via AWS CloudFront.
  • Implemented OIDC authentication with Auth0, and integrated with MongoDB for storing chat history.
  • Developed CI/CD workflows with GitHub Actions and Docker, incorporating Jest unit and Cypress E2E tests.

Web Development & Marketing

Self Employed

Aug 2020 – Present

Remote

  • Provide client-facing web development and marketing services for startups and small businesses.
  • Architect a large-scale static page system serving 100,000+ pages using AWS services (S3, CloudFront, API Gateway), implementing infrastructure as code with Terraform.
  • Develop and design performant web apps using TypeScript, Next.js, React, and Tailwind CSS.
  • Implement technical SEO best practices and consult clients on SEO strategies.
  • Create targeted Google Ad campaigns with analytics reporting in Google Analytics.

Projects

Fantasy Football Ranking Service

Sep 2024

PostgreSQL, SQL, Python

  • Ingested NFL data into a PostgreSQL datastore for comprehensive analysis.
  • Developed data loading and transformation scripts in Python to process and clean data.
  • Wrote SQL queries to generate fantasy football insights such as schedule adjusted projections and player rankings.

Amazon Product Vector Search Engine

Jun 2023

Python, Jupyter, OpenAI, Pinecone

  • Developed a natural language search engine for Amazon products using vector search.
  • Created OpenAI embeddings of Amazon product descriptions from a HuggingFace dataset.
  • Wrote data transformation scripts in Python and integrated with Pinecone vector database.

MagiPad

Mar 2023

Swift, UIKit, OpenAI

  • Designed, developed, and presented an iPad app prototype within a 24-hour time frame for Uncommon Hacks 2023 at the University of Chicago.
  • Built with Swift, UIKit, and Dall-E 2 for image generation.

Canvas Plus Plus (LMS)

Feb 2023 – May 2023

Python, Django, MySQL, Docker

  • Designed relational database schema in third normal form.
  • Setup dev environments for teammates by configuring Django-MySQL integration with Docker.
  • Practiced Agile, Scrum, and XP principles within a team of 6 developers.

cardgamer.club

Jan 2023 – Mar 2023

JavaScript, Node.js, Firebase, Netlify

  • Developed a multiplayer card game with a serverless architecture using Firebase’s Realtime Database and Netlify Functions.
  • Built a custom drag and drop library from scratch using vanilla JavaScript.
  • Implemented user authentication and lobby management with Firebase.

Education

University of Wisconsin-Madison

Bachelor of Science, Computer Science

Certificate of Entrepreneurship

Sep 2019 – May 2023