Middle/Senior Full Stack Engineer (.NET + React)

About Us: We are a Web2/Web3 incentive platform. Our MVP is live and we are scaling into market, so we are growing the engineering team to match. Our advantage is blending the power
of blockchain with the accessibility of Web2: the core runs on chain, but the user experience is seamless for everyone. You can read more about us on joinbundle.com.

The Role: We are looking for a full stack engineer who leans backend to join a small, distributed engineering team of six, working directly with our Director of Technology. Yo will own features end to end, from the .NET API and its background workers through to the React dashboards our users actually touch. This is a hands-on role with no layers between you and the product decisions.

Your Responsibilities
Design, build and maintain features in our .NET 10 backend: REST APIs, domain logic, EF Core data models and event-driven background jobs.
Take those features through to the UI in our React/TypeScript frontends, so a feature ships complete rather than being handed over half-finished.
Work with MySQL, RabbitMQ and Redis, and think about correctness across multiple running instances, not just on your laptop.
Integrate third-party services (payments, KYC, messaging) and handle the failure cases properly.
Ship through Docker and GitHub Actions, and keep an eye on your own code in production.
Actively use AI coding assistants to move faster on implementation and boilerplate.

Requirements
Core: 5+ years of commercial full stack experience.
Backend: Strong C# and ASP.NET Core (Web API, dependency injection, async), EF Core, and solid relational database and SQL skills.
Frontend: Confident with React and TypeScript. You do not need to be a design specialist, but you should be able to build a clean, working interface without hand-holding.
Systems: Comfortable with queues, background processing and asynchronous flows. You understand why a job might run twice and what to do about it.
AI Proficiency: You are an "AI Tools Master". You know how to leverage AI to code faster and smarter.
Tooling: Docker, Git, CI pipelines.
Soft Skills: Self-directed, communicative, comfortable owning a piece of work in a remote team without being managed day to day.
Language: Professional English, written and spoken.

Nice to Have (Not required, but a plus)
Familiarity with Web3 concepts: wallets, smart contract interactions, EVM chains.
Node.js or Nest.js.
Experience with Redis beyond caching: distributed locks, shared state.
Payments, KYC or compliance integrations.
Frontend analytics instrumentation (GA4, Hotjar, custom event tracking).

Our Tech Stack
Backend: .NET 10 / C#, split into an API and a worker service. EF Core, MySQL, RabbitMQ, Redis.
Frontend: Two React + TypeScript + Vite applications, one for companies and one for end users.
Web3: Nest.js service talking to Arbitrum smart contracts, Solidity.
Infra: Docker, GitHub Actions, Kamal, Cloudflare, Sentry.

What We Offer
Fully Remote: Work from anywhere. Our team already spans several countries and we do not care where you sit.
AI Tools Budget: We cover your preferred AI subscriptions.
Competitive Compensation: Based on your experience and impact.
High Impact: A small team with a live product. Your code ships to real users, and you will be in the room when the decisions are made.