Full Stack Software Engineer jobs in United States
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Cassidy · 5 hours ago

Full Stack Software Engineer

Cassidy is a no-code platform that allows businesses to build custom AI assistants that automate complex multi-step workflows. They are seeking a highly autonomous Full Stack Software Engineer to own the design and implementation of core features and infrastructure, contributing to projects involving advanced AI and shaping the core architecture of their platform.

Artificial Intelligence (AI)Information TechnologyNatural Language ProcessingSoftware

Responsibilities

Build Intuitive Interfaces : Develop features across Node, React, and Postgres (TypeScript) so non-technical users can design AI automations with ease
Explore Advanced AI : Contribute to projects involving LLMs, Retrieval Augmented Generation (RAG), and AI agents— from research/prototyping to full production releases
Shape Core Architecture : Help refine our stack to handle growing data/usage needs, ensuring reliability and scalability
Iterate with Product & Design : Work in a tight loop—prototype, gather feedback, and deliver high-impact features efficiently

Qualification

Node.jsReactPostgresTypeScriptLarge-Scale SystemsInformation RetrievalApplied AIProblem SolvingCommunication Skills

Required

2+ years of professional software development experience (at least 1 year with full-stack responsibilities)
BA/BS in Computer Science or related field (or equivalent practical experience)
Comfortable working on-site in NYC (4–5 days/week) to foster a close-knit, collaborative environment
Proactive, self-motivated problem solver with strong communication skills
Experience in a typed environment (preferably TypeScript) across Node.js, React, Postgres, etc

Preferred

Large-Scale Systems Knowledge: Exposure to distributed systems, queues, caching, or ETLs
Information Retrieval / Recommendation Systems: Experience building or contributing to search/ranking components
Applied AI: Familiarity with evaluating AI models or integrating multi-LLM workflows at a basic level
Startup or Small Team Experience: Comfortable wearing multiple hats and driving projects with minimal oversight

Benefits

Competitive Compensation + Equity

Company

Cassidy

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Cassidy provides a context-powered AI automation platform for non-technical teams to control building AI workflows.

Funding

Current Stage
Growth Stage
Total Funding
$13.65M
Key Investors
The General Partnership
2025-09-08Series A· $10M
2024-08-20Seed· $3.65M

Leadership Team

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Justin Fineberg
CEO / Founder
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Ian Woodfill
CTO / Founder
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Company data provided by crunchbase