Staff Engineers (Elixir)

River · posted Nov 2, 2026

Open to candidates in Albania, Andorra and 73 more

Albania, Andorra, Argentina, Armenia, Austria, Belarus, Belgium, Belize, Bolivia, Bosnia and Herzegovina, Brazil, Bulgaria, Chile, Colombia, Costa Rica, Croatia, Cuba, Cyprus, Czechia, Denmark, Dominican Republic, Ecuador, El Salvador, Estonia, Finland, France, Georgia, Germany, Gibraltar, Greece, Guatemala, Guyana, Haiti, Honduras, Hungary, Iceland, Ireland, Italy, Jamaica, Kosovo, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Mexico, Moldova, Monaco, Montenegro, Netherlands, Nicaragua, North Macedonia, Norway, Panama, Paraguay, Peru, Poland, Portugal, Puerto Rico, Romania, San Marino, Serbia, Slovakia, Slovenia, Spain, Suriname, Sweden, Switzerland, Trinidad and Tobago, Türkiye, Ukraine, United Kingdom, United States, Uruguay, Venezuela

$200k–$250k · Staff

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What this job asks for

Extracted by RemoteHunt

Must have

  • •Elixir expertise
  • •Experience with large-scale systems
  • •Strong understanding of distributed systems
  • •Experience with financial systems
  • •Ability to mentor junior engineers

Nice to have

  • •Experience with Bitcoin or cryptocurrency
  • •Experience with ML/AI systems
  • •Experience with React Native

Tools and technologies

Elixir, GraphQL, Python, PyTorch, XGBoost, LLMs, React, React Native, Go, Lightning Network

Read the full posting

River | Staff Engineers (Elixir) | NYC or REMOTE (US, Europe, South America) | Full-Time | $200K-$250K + equity | https://jobs.ashbyhq.com/river?utm_source=Zp9nJyqvd4 I'm Alex, founder and CEO of River. I also wrote the first line of code and still ship PRs. River is a client-first Bitcoin-only financial institution building the financial app people use every day to save in bitcoin and spend in dollars.

We custody over 33,000 BTC, serve individuals and businesses across the U.S., and are profitable. We publish cryptographic proof of reserves monthly and our company financials annually. Here's what our engineering team is working on: - Real-time Bitcoin and USD payments, trading, and settlement on an Elixir monolith with a unified GraphQL API - Next-generation Bitcoin custody with quorum signing, key ceremonies, and geo-redundant infrastructure - Scaling our ML/AI systems (Python, PyTorch, XGBoost, LLMs) to automate operations and tackle fraud/risk - A ground-up React and React Native rewrite of our consumer app - Porting our Lightning Network infrastructure from Go into Elixir We're hiring: - Staff Software Engineer (Elixir) | $200K-$250K Apply at https://jobs.ashbyhq.com/river/610f652b-bdb9-4d82-9973-680ba...

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