Aidan Prehatny
Verified Expert in Engineering
Full-stack Engineer and Developer
San Diego, CA, United States
Toptal member since August 27, 2025
Aidan is a senior full-stack engineer with 8+ years of experience who ships reliable, user-focused products. He builds React/Next.js UIs and Node.js/Python services, designs REST and GraphQL APIs, and runs on AWS or Vercel with solid CI/CD, observability, and security. Recent work spans real-time simulation at Slingshot Aerospace and consumer web apps at BannerWave. He has practical experience adding AI features with OpenAI and the Vercel AI SDK when they serve clear product goals.
Portfolio
Experience
- TypeScript - 8 years
- React - 8 years
- Python - 8 years
- Node.js - 8 years
- Full-stack - 8 years
- Software Engineering - 8 years
- Next.js - 6 years
- Artificial Intelligence (AI) - 5 years
Preferred Environment
MacOS, Unix, Windows, Fiddler, React, Node.js, TypeScript, Next.js, C#, .NET
The most amazing...
...thing I've built is Slingshot Laboratory, a real-time WebGL space simulator that trains operators with GPU-accelerated orbital visuals.
Work Experience
Senior Full-stack Developer
BannerWave
- Designed and shipped full-stack web apps and interactive ad experiences with React, Next.js, TypeScript, Node.js, PostgreSQL, AWS, and Amazon Connect, supporting thousands of users.
- Implemented a Retrieval-augmented Generation (RAG) generative-AI feature using OpenAI Responses API and Vercel AI SDK; built ingestion and retrieval with Pinecone to deliver transparent, cited insights.
- Designed and optimized REST and GraphQL APIs with efficient pagination, caching, background queues, and end-to-end observability. Integrated Qualtrics data to improve user experience insights and enhance data-driven decision-making.
- Automated CI/CD with GitHub Actions, Docker, and Terraform; integrated third-party systems via OAuth 2 and signed webhooks with rate limiting and idempotency.
Senior Software Engineer
Slingshot Aerospace
- Served as a core developer of a real-time 3D space simulation. Built a highly performant WebGL-based visualization platform in React and Three.js, rendering tens of thousands of satellites with real-time positional updates.
- Designed a WebSocket-driven state management system with GraphQL subscriptions, ensuring seamless multiplayer UI synchronization.
- Developed and optimized APIs to serve satellite telemetry predictions, integrating FastAPI with PostgreSQL. Structured ML inference data for front-end visualizations and integrated Qualtrics data for enhanced user insights.
- Engineered back-end APIs that processed satellite pass predictions, transforming raw ML inferences into actionable telemetry insights visualized in React and Nivo Charts.
- Played a pivotal role in architecting and delivering the 3D satellite tracking platform, collaborating with stakeholders to translate complex orbital mechanics into interactive analytics.
Senior Software Engineer
Decision Sciences
- Designed and developed service-oriented back-end systems with .NET and React UIs, supporting international customs and border agencies through company products.
- Automated infrastructure and deployment using Terraform and Docker for infrastructure as code (IaC), streamlining microservice deployments. Deployed scalable, resilient systems on Azure, improving cost efficiency and performance.
- Headed the transition from air-gapped environments to cloud-based solutions, optimizing system performance while maintaining high security standards.
Senior Software Engineer
Fuse Integration
- Developed innovative software-defined routing solutions for network environments lacking satellite connectivity, enabling reliable airborne communications.
- Engineered real-time antenna control systems, boosting network availability and throughput for defense and airborne applications.
- Collaborated with cross-functional teams on a range of in-house software products, integrating established and emerging defense technologies.
- Solved complex integration challenges by designing modular, reusable software architectures adapted to strict third-party technical specifications and APIs.
Software Engineer
Paradeigm
- Engaged in cross-disciplinary software development for web and cross-platform mobile applications utilizing React Native.
- Innovated strategies for managing substantial application states with immutable update logic, contributing to efficient data system design.
- Contributed to server-side web application logic, handling user validation/authentication, HTTP path-based data routing, and NoSQL object data modeling.
- Collaborated on many customer-facing applications, swiftly adapting to client demands and consistently meeting deadlines, showcasing proficiency in React UI.
Experience
Space Simulation Software
A video can be found at drive.google.com/file/d/18qQZhdYe9KH8oqyoliHobTPaXLZR5XFW/view?usp=sharing.
Paradeigm
Web Apps and Interactive Ad Experiences
• Implemented a Retrieval-augmented Generation (RAG) generative-AI feature using OpenAI Responses API and Vercel AI SDK; built ingestion and retrieval with Pinecone to deliver transparent, cited insights.
• Designed and optimized REST and GraphQL APIs with reliable pagination, caching, background queues, and end-to-end observability.
• Automated CI/CD with GitHub Actions, Docker, and Terraform; integrated third-party systems via OAut 2 and signed webhooks with rate limiting and idempotency.
Education
Master's Degree in Computer Science
Georgia Institute of Technology - Atlanta, Georgia, USA
Bachelor's Degree in Multimedia Design
San Diego State University - San Diego, CA, USA
Skills
Libraries/APIs
React, WebGL, Node.js, REST APIs, React Router, SQLAlchemy, Google Maps API, Stripe, Vue, Stripe API, PayPal API, Playwright, RxJS, React Hook Form, React Testing Library, Chart.js, Claude API, React Navigation, Entity Framework, Mapbox GL, Pandas, API Development, FFmpeg, Framer Motion, Authorize.net, Balanced Payments API, Twilio API, Three.js, OpenLayers, D3.js, Jira REST API, Puppeteer, Shopify API, Square API, WooCommerce API, SendGrid API, OpenAI API
Tools
Claude, Windsurf, Shadcn, BigQuery, Nx, AWS CloudFormation, Auth0, Webpack, RabbitMQ, Amazon Simple Queue Service (SQS), Vitest, Canvas, Prisma, Retool, Jira, Claude Code, n8n, Amazon CloudWatch, Git, Figma, Azure App Service, GitHub, JotForm, Expo, Qualtrics, Codex, Amazon Connect, Stencil.js, Amazon Textract, Apache Tomcat, Charles Proxy, Fiddler, TLS Fingerprinting, GIS, Amazon CloudFront, Amazon Elastic Container Service (ECS), MailerSend, Plaid, AI Prompts, Terraform, CircleCI
Languages
JavaScript, Python, TypeScript, C#, Java, CSS, GraphQL, SQL, CSS3, HTML5, Go, HTML, Modern JavaScript, Rust, Ruby, PHP, Elixir, Kotlin, C++
Frameworks
React Native, Next.js, JSON Web Tokens (JWT), Redux, .NET, Tailwind CSS, Angular, Spring, Express.js, Serverless Framework, Spring Boot, NestJS, Payload CMS, Material UI, .NET Core, Fastify, iOS SDK, .NET MAUI, .NET 4, .NET 8, ASP.NET, ASP.NET Core, Jest, Selenium, Django, Hibernate, Cypress, Electron, Recoil, Ruby on Rails (RoR), ASP.NET Web API, Nuxt.js, LangGraph, Bootstrap, OAuth 2, Laravel, Dropwizard, Flask, Phoenix, Unity
Paradigms
Microservices, REST, Role-based Access Control (RBAC), Automation, E2E Testing, Test-driven Development (TDD), Web Performance Optimization (WPO), Model Context Protocol (MCP), Microservices Architecture, CSRF Protection, Responsive Web Design (RWD), Database Design, Best Practices, Load Testing, Testing, ETL, REST API Architecture, Refactoring, Web Application Architecture, Search Engine Optimization (SEO), Event-driven Architecture, Agile, Code Refactoring, Mobile Development, Real-time Systems, DevOps, HIPAA Compliance, Azure DevOps, Unit Testing, Continuous Integration (CI), Socket Programming, Software-defined Networking (SDN)
Platforms
Docker, Amazon Web Services (AWS), Unix, Mapbox, MacOS, Windows, Google Cloud Platform (GCP), Kubernetes, Umbraco, Linux, Google Ads, Airbyte, Azure Functions, Apache Kafka, Medusa, DigitalOcean, Azure, Vercel, Firebase, iOS, AWS Lambda, Burp Suite
Storage
PostgreSQL, MongoDB, Relational Databases, Redis, Microsoft SQL Server, Amazon DynamoDB, Database Architecture, Data Integration, Data Pipelines, Neo4j, JSON, NoSQL, Databases, Datadog, MySQL, Azure SQL Databases, PostGIS, Azure SQL, Google Cloud, Salesforce Commerce Cloud
Industry Expertise
Healthcare, Cybersecurity, Accounting
Other
Artificial Intelligence (AI), Web Development, Software Engineering, Full-stack, OpenAI, Gemini, Cursor AI, Axios, WebSockets, APIs, FastAPI, API Integration, Supabase, AI Integration, AI Tools, Full-stack Development, CI/CD Pipelines, Chrome Extensions, PayPal, Dashboards, Data Visualization, Zustand, Monorepos, SDKs, Application State Management, Large-scale Projects, Web Security, Springbot, Optical Character Recognition (OCR), Non-relational Databases, Prismic, Front-end, Okta, AI Agents, Hands-on Implementation, Revenue Cycle Management, Technical Leadership, WebAssembly (Wasm), Radix UI, Single Sign-on (SSO), Server-side Rendering (SSR), RESTFul APIs, Sitecore, Storybook, Geospatial Data, Payment APIs, Amazon RDS, Caching, Cloudflare, Vite, Apollo, Compliance, Performance Optimization, Problem Solving, SaaS, Scalable Architecture, Architecture, Cookies, Deployment, Server Configuration, SSL Certificates, Large Language Models (LLMs), User Interface (UI), Pixel Perfect, User Experience (UX), Web Scraping, Dagster, Computer Vision, Data Scraping, Scraping, Scripting, .NET Framework, Solution Architecture, Software Architecture, Payment Processing, Video Streaming, identity verification, Agentic AI, Consumer-facing Products, Prompt Engineering, Tus.io, Video Processing, Tailwind UI, Figma to React, Payments, Base 44, React Hooks, Microsoft Azure, Static Site Generators, Page Speed Optimization, Large Language Model Operations (LLMOps), Railway, Generative Artificial Intelligence (GenAI), AI Chatbots, Classification, Conversational Agent, System Architecture, Workflow Automation, Anthropic, eCommerce, LangChain, Web Applications, User Roles, GPS, AI-assisted Development, Agentic Engineering, Finance, Avatars, Edtech Design, MVP Design, Progressive Web Applications (PWAs), Infrastructure as Code (IaC), Mobile App Development, Mobile Apps, SMS, Applicant Tracking Software (ATS), App Support, Back-end, Bug Triage, Intercom, Interactive Intelligence (ININ), Multimedia Design, Cloud, Streaming, UI Animation, Strapi, Headless CMS, CSS-in-JS, Accessibility, WCAG 2, Web Content Accessibility Guidelines (WCAG), Active Directory (AD), Tesseract, Advisory, Distributed Systems, Large-scale Distributed Systems, Deno, Retrieval-augmented Generation (RAG), Data Analytics, Financials, Security, Financial Forecasting, Point of Sale, QuickBooks Online, Data Warehousing, Amazon Route 53, Azure Blob Storage, RESTful Microservices, Account-based Marketing (ABM), Azure SSO, Dash, DocuSign, Integration Testing, Legacy Code, Foundry, Chatbots, Speech-to-Text (STT), Content Management Systems (CMS), Software
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