Staff Engineers (Elixir)

United States Digital Space LLC; United States; Remote; USD 200,000 - 250,000; Full time

Benefits offered by this job

Equity

Job summary

United States Digital Space LLC is hiring a Staff Software Engineer (Elixir) to build real-time Bitcoin and USD payments, custody systems, and a unified GraphQL API. This role allows NYC-based onsite or fully remote work across the US, Europe, and South America.

You will work on an Elixir monolith, port Lightning Network infrastructure from Go to Elixir, and help scale ML/AI systems with Python and PyTorch.

Responsibilities

• 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

Job description

the company | Staff Engineers (Elixir) | NYC or REMOTE (US, Europe, South America) | Full-Time | $200K-$250K + equity | I'm Alex, founder and CEO of the company. I also wrote the first line of code and still ship PRs.

the company 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