Senior Full Stack Software Engineer

About this role

About Defcon Ai
RESILIENCE IN THE FACE OF DISRUPTION. DEFCON AI is an insights company that leverages artificial intelligence, mathematical optimization, data analytics, and software engineering for resilient optimization of complex systems.


In today's dynamically changing world, DEFCON AI's technology aligns outcomes with operational goals, better decision making, and empowers customers to anticipate assess, and mitigate the impacts of disruptions.


About the Role
We're hiring a
Senior Full Stack Software Engineer
to design, build, and scale modern web applications end-to-end. You'll work across frontend UI, backend services, APIs, asynchronous processing, and data layers—shipping features that are reliable, secure, and built to last.


This is a senior individual contributor role with real autonomy and real impact. You'll have end-to-end ownership of features and meaningful input into technical decisions, quality standards, and delivery practices working in a remote-first environment.


Core Tech Stack:

- Frontend
: React 19, TypeScript, Vite-based React apps, Tailwind CSS, SignalR
- Backend:
.NET 9 (C#), Minimal APIs, Entity Framework Core
- Async Processing:
RabbitMQ, Redis (for scale-out and caching)
- Data and Storage:
PostgreSQL, Amazon S3

What You'll Do

- Shape the product architecture end-to-end.
You'll design and ship modular .NET services and modern React frontends that stay fast, reliable, and elegant across a wide range of real-world customer environments.
- Own the data foundation.
You'll design high-performance PostgreSQL schemas and craft EF Core queries that serve as the source of truth for business logic, permissions, and RBAC—balancing correctness, clarity, and scale.
- Engineer for performance at scale.
You'll build smart caching layers with Redis and leverage S3 for large artifacts, keeping our Web Gateway lean, responsive, and built to grow.
- **Drive technical ...