Fullstack Engineer
Flashnet is a non-custodial exchange described as the fastest on the most secure ledger, allowing users to trade Bitcoin at scale without ever giving up control of their keys. It offers millisecond execution and native settlement of any asset on Bitcoin.
Maintainer signals as of 8/11/2026
Funding history
Projects
About Flashnet
Flashnet provides a state-of-the-art, non-custodial trading experience on Bitcoin, featuring millisecond execution and native settlement of any asset. Users retain control of their funds at all times and can sequence to L1 instantly. The platform is hyper-efficient with near-instant, low-fee execution on an orderbook that rivals centralized exchanges, and it supports native, verifiable, and interoperable trading with real BTC without bridging. For developers, Flashnet offers tools to integrate trustless, non-custodial swaps into any Bitcoin experience, providing access to deep liquidity, a dedicated OTC desk, Lightning Network integration, and a fully trustless RFQ model to keep users within their ecosystem.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will be responsible for building and implementing web, back-end, and distributed tooling. You will focus on simplicity and performance-driven systems that are secure and robust. You will ship features and products end-to-end, design and implement novel features, and connect moving parts to make systems consistent and simple.
Requirements
- Live in the US
- 3+ years of experience writing software in production
- 3+ years building full-stack applications that have reached >25k DAU
- Own Bitcoin
Responsibilities
- Build and implement web applications
- Build and implement back-end services
- Build distributed tooling
- Ship features and products end-to-end
- Design and implement novel features
- Ensure systems are secure and robust
- Simplify and integrate moving parts across the organization
