Backend Engineer
Flashnet is a Bitcoin-focused company building non-custodial trading and asset-routing products. Its offerings include a Bitcoin DEX, the Orchestra orchestration API, and USDB, a Bitcoin-native dollar stablecoin that pays rewards in BTC.
Funding history
About Flashnet
Flashnet builds modular, non-custodial exchange and liquidity infrastructure for Bitcoin. Its products serve wallets, exchanges, merchants, payout providers, and other teams that need to buy, sell, accept, settle, or route Bitcoin and stablecoins. Orchestra provides APIs for swaps, routing, bridging, settlement, payment links, reusable addresses, fiat onramps, and webhooks; Flashnet Markets provides native BTC trading on Spark; and USDB is a Treasury-backed stablecoin issued by Brale that rewards holders with Bitcoin.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will build back-end frameworks that support latency- and performance-driven systems. You will implement and design orderbook architecture, distributed account systems, and reputational systems, while creating highly available, secure, robust systems and shipping features for market makers, high-frequency traders, and users.
Requirements
- Live in the US
- 3+ years of experience writing software in production
- 3+ years scaling and maintaining backend systems
- Own Bitcoin
Responsibilities
- Build back-end frameworks
- Implement and design orderbook architecture
- Design distributed account systems
- Design reputational systems
- Design systems for high availability, performance, and uptime
- Ship features for market makers, high-frequency traders, and users
Hiring Process
1. Intro Call: 30 minute casual chat with founder. 2. Deep Dive: 45 minute conversation talking through things you've built in detail. 3. Comp Review: 30 minute chat with founder to go over the offer. 4. Work Trial: 1-3 week, paid consulting project where you ship something with the team.
