Blockchain Engineer 2

As a Blockchain Engineer 2 at Prometheum, you take ownership of whole features end to end. You shape technical epics in collaboration with the Architect and CTO, break them into deliverable pieces, guide the work through release, and keep stakeholders honestly informed. You work on secure custody contracts, transaction signing and orchestration, and key management systems that other teams depend on. Our engineering team is fully remote, and you will partner with senior engineers as you grow into technical design and architecture decisions.

What you'll do

• Build and maintain secure and optimized blockchain applications
• Own epics end to end, from story writing and pointing through delivery and release
• Build across many different languages, taking on large and complex problems in your team's scope
• Report progress on your epic regularly and accurately, and raise risks before they become surprises
• Partner with senior engineers on technical design, architecture decisions, and future epics
• Demonstrate a passion for learning, building, and constantly improving cutting-edge applications
• Communicate often to encourage tight and quick feedback loops and remove potential blockers
• Use AI coding tools as a default part of your workflow, and review what they produce with the same rigor you would apply to your own code
• Review teammates' code in a way that catches design concerns, edge cases, and test gaps
• Work directly with neighboring systems throughout delivery, not just at handoff
• Investigate and resolve issues found in QA, UAT, and production

What you bring

• 3 or more years of professional software engineering experience building and shipping production software
• Strong blockchain fundamental knowledge, including in-depth knowledge of top chains such as Bitcoin and Ethereum
• Familiarity with basic cryptography commonly utilized by blockchains
• Strong administrative and organizational skills, including the ability to effectively prioritize, manage time, and meet deadlines on multiple projects
• Automated testing as a habit rather than an afterthought
• Hands-on experience with AI coding assistants, plus the judgment to know when their output is wrong
• Clear written communication with a strong command of English, which matters more on a fully remote team
• The ability to reason through technical disagreements with evidence and to update your view when the evidence shifts
• Authorization to work in the U.S. or Canada
• Ability to pass a comprehensive background check, which is required for this role

Nice to have

• Experience mentoring or onboarding other engineers
• Background in finance, brokerage, trading, or custody
• Exposure to regulated environments and the audit trails they require
• Experience with Jira, Confluence, or similar tools

What we offer

• Salary of $130,000 to $165,000
• Health, dental, vision, disability, and life insurance
• Health savings account and flexible spending account
• Stock options
• Competitive vacation time and paid sick days
• Paid time off for observed federal holidays and parental leave
• Equipment provided
• 401(k)
• Fully remote work with overlapping hours for pairing, reviews, and ceremonies
• Quarterly reviews, weekly 1:1s, and candid feedback when something is not landing

About Prometheum

Prometheum is building market infrastructure that brings securities onto the blockchain. As an SEC-registered broker-dealer network, it carries a digital asset through its entire life, from issuance and distribution to qualified custody, correspondent clearing, and secondary market trading, all within U.S. securities law. Prometheum was the first SEC-registered special purpose broker-dealer and the first to trade ETH inside a traditional brokerage account.