Blockchain Developer

As a Blockchain Engineer 2 at Prometheum, you own features end to end for an SEC-registered broker-dealer that brings securities onto the blockchain. You shape epics in collaboration with the Architect and CTO, break work into deliverable pieces, guide them through to release, and keep stakeholders honestly informed. You work on custody contracts, transaction signing and orchestration, and key management that other teams depend on, where your output is measured by how well it serves those teams and their customers.

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 the large, 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 the 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: 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 the English language, which matters more on a fully remote team
• 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: $130,000-$165,000
• Health, dental, vision, disability, and life insurance
• Stock options
• Competitive vacation time, paid sick days, and time off for observed federal holidays
• Equipment provided
• Fully remote work with overlapping hours for pairing, reviews, and ceremonies

About Prometheum

Prometheum is building market infrastructure that brings securities onto the blockchain. As an SEC-registered broker-dealer network, it carries digital assets through their entire life cycle 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.