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Hey, I'm Cassidy - an AI and full-stack engineer with over 10 years of experience building production systems that actually ship. Most recently, I was an AI Engineer at Super, a PropTech startup where I was one of two core engineers leading their V2 platform migration. I built their entire LangChain-based AI agent framework from scratch, which powered automated customer service across voice and SMS channels. I also architected their event-driven infrastructure using NestJS and Pub/Sub, and implemented real-time voice communication with LiveKit and Twilio. In 8 months, I contributed over 650 commits and 28,000 lines of production code across 4 repositories. Before Super, I've worn a lot of hats. I helped TestGorilla secure $70M in Series A funding as part of their Customer Activation team. At Speedoc, I rebuilt their medical services app from the ground up and helped them raise $5M while achieving ISO 27001 security certification. I've built crypto wallets on Solana, launched DeFi apps on Avalanche and Polygon, and even managed a team of 15 designers at a design subscription startup. I started my engineering career at Yahoo in New York, where I built thousands of rich media ad experiences and created templates that became team standards. I'm not just someone who writes code - I build systems. Give me an ambiguous problem and I'll architect a solution, implement it end-to-end, and make sure it scales. I'm particularly strong with TypeScript, NestJS, LangChain, OpenAI integration, Prisma, PostgreSQL, and React Native. I'm also comfortable with Python, AWS, GraphQL, and pretty much anything in the modern JavaScript ecosystem. If you need someone who can take ownership of a project from architecture to deployment, especially anything involving AI agents, real-time communication, or event-driven backends, I'd love to chat.…Hey, I'm Cassidy - an AI and full-stack engineer with over 10 years of experience building production systems that actually ship. Most recently, I was an AI Engineer at Super, a PropTech startup where I was one of two core engineers leading their V2 platform migration. I built their entire LangChain-based AI agent framework from scratch, which powered automated customer service across voice and SMS channels. I also architected their event-driven infrastructure using NestJS and Pub/Sub, and implemented real-time voice communication with LiveKit and Twilio. In 8 months, I contributed over 650 commits and 28,000 lines of production code across 4 repositories. Before Super, I've worn a lot of hats. I helped TestGorilla secure $70M in Series A funding as part of their Customer Activation team. At Speedoc, I rebuilt their medical services app from the ground up and helped them raise $5M while achieving ISO 27001 security certification. I've built crypto wallets on Solana, launched DeFi apps on Avalanche and Polygon, and even managed a team of 15 designers at a design subscription startup. I started my engineering career at Yahoo in New York, where I built thousands of rich media ad experiences and created templates that became team standards. I'm not just someone who writes code - I build systems. Give me an ambiguous problem and I'll architect a solution, implement it end-to-end, and make sure it scales. I'm particularly strong with TypeScript, NestJS, LangChain, OpenAI integration, Prisma, PostgreSQL, and React Native. I'm also comfortable with Python, AWS, GraphQL, and pretty much anything in the modern JavaScript ecosystem. If you need someone who can take ownership of a project from architecture to deployment, especially anything involving AI agents, real-time communication, or event-driven backends, I'd love to chat.

Cassidy Pignatello

AI Engineer, AI Developer, Full Stack Developer, +3

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Hey, I'm Cassidy - an AI and full-stack engineer with over 10 years of experience building production systems that actually ship. Most recently, I was an AI Engineer at Super, a PropTech startup where I was one of two core engineers leading their V2 platform migration. I built their entire LangChain-based AI agent framework from scratch, which powered automated customer service across voice and SMS channels. I also architected their event-driven infrastructure using NestJS and Pub/Sub, and implemented real-time voice communication with LiveKit and Twilio. In 8 months, I contributed over 650 commits and 28,000 lines of production code across 4 repositories. Before Super, I've worn a lot of hats. I helped TestGorilla secure $70M in Series A funding as part of their Customer Activation team. At Speedoc, I rebuilt their medical services app from the ground up and helped them raise $5M while achieving ISO 27001 security certification. I've built crypto wallets on Solana, launched DeFi apps on Avalanche and Polygon, and even managed a team of 15 designers at a design subscription startup. I started my engineering career at Yahoo in New York, where I built thousands of rich media ad experiences and created templates that became team standards. I'm not just someone who writes code - I build systems. Give me an ambiguous problem and I'll architect a solution, implement it end-to-end, and make sure it scales. I'm particularly strong with TypeScript, NestJS, LangChain, OpenAI integration, Prisma, PostgreSQL, and React Native. I'm also comfortable with Python, AWS, GraphQL, and pretty much anything in the modern JavaScript ecosystem. If you need someone who can take ownership of a project from architecture to deployment, especially anything involving AI agents, real-time communication, or event-driven backends, I'd love to chat.…Hey, I'm Cassidy - an AI and full-stack engineer with over 10 years of experience building production systems that actually ship. Most recently, I was an AI Engineer at Super, a PropTech startup where I was one of two core engineers leading their V2 platform migration. I built their entire LangChain-based AI agent framework from scratch, which powered automated customer service across voice and SMS channels. I also architected their event-driven infrastructure using NestJS and Pub/Sub, and implemented real-time voice communication with LiveKit and Twilio. In 8 months, I contributed over 650 commits and 28,000 lines of production code across 4 repositories. Before Super, I've worn a lot of hats. I helped TestGorilla secure $70M in Series A funding as part of their Customer Activation team. At Speedoc, I rebuilt their medical services app from the ground up and helped them raise $5M while achieving ISO 27001 security certification. I've built crypto wallets on Solana, launched DeFi apps on Avalanche and Polygon, and even managed a team of 15 designers at a design subscription startup. I started my engineering career at Yahoo in New York, where I built thousands of rich media ad experiences and created templates that became team standards. I'm not just someone who writes code - I build systems. Give me an ambiguous problem and I'll architect a solution, implement it end-to-end, and make sure it scales. I'm particularly strong with TypeScript, NestJS, LangChain, OpenAI integration, Prisma, PostgreSQL, and React Native. I'm also comfortable with Python, AWS, GraphQL, and pretty much anything in the modern JavaScript ecosystem. If you need someone who can take ownership of a project from architecture to deployment, especially anything involving AI agents, real-time communication, or event-driven backends, I'd love to chat.

Available to hire

Hey, I’m Cassidy - an AI and full-stack engineer with over 10 years of experience building production systems that actually ship.

Most recently, I was an AI Engineer at Super, a PropTech startup where I was one of two core engineers leading their V2 platform migration. I built their entire LangChain-based AI agent framework from scratch, which powered automated customer service across voice and SMS channels. I also architected their event-driven infrastructure using NestJS and Pub/Sub, and implemented real-time voice communication with LiveKit and Twilio. In 8 months, I contributed over 650 commits and 28,000 lines of production code across 4 repositories.

Before Super, I’ve worn a lot of hats. I helped TestGorilla secure $70M in Series A funding as part of their Customer Activation team. At Speedoc, I rebuilt their medical services app from the ground up and helped them raise $5M while achieving ISO 27001 security certification. I’ve built crypto wallets on Solana, launched DeFi apps on Avalanche and Polygon, and even managed a team of 15 designers at a design subscription startup. I started my engineering career at Yahoo in New York, where I built thousands of rich media ad experiences and created templates that became team standards.

I’m not just someone who writes code - I build systems. Give me an ambiguous problem and I’ll architect a solution, implement it end-to-end, and make sure it scales. I’m particularly strong with TypeScript, NestJS, LangChain, OpenAI integration, Prisma, PostgreSQL, and React Native. I’m also comfortable with Python, AWS, GraphQL, and pretty much anything in the modern JavaScript ecosystem.

If you need someone who can take ownership of a project from architecture to deployment, especially anything involving AI agents, real-time communication, or event-driven backends, I’d love to chat.