Principal Software Engineer - US

Location: US (remote-first, office optional), will consider strong profiles from Canada. EST preferred.

Are you a technical leader ready to build the next generation of financial infrastructure?

Join a stellar team of leaders and experts in blockchain technology, cryptography, infrastructure, and security to build the backbone of secure, resilient systems for the evolving financial era. Our client is hiring a Principal Software Engineer to lead the design, development, and scaling of their core backend systems.

This is a high-impact, remote-first role for someone who excels at setting technical direction and owning critical projects end-to-end.

As a Principal Software Engineer, you will be more than just a coder; you will be a key driver of technical strategy and execution. You will own mission-critical projects while setting the technical direction and ensuring their platform is fast, resilient, and secure under the high-stakes demands of financial workflows.

- Lead the design and development of highly scalable, secure backend services and APIs. - Define and evolve the architecture for databases, microservices, and system integrations. - Own critical projects from initial requirements through production deployment and iteration. - Troubleshoot and resolve complex performance and reliability challenges at massive scale. - Drive improvements to CI/CD, observability, and engineering processes across multiple teams. - Collaborate with product, security, and leadership to shape roadmap priorities and align technical execution with long-term company strategy. - Mentor senior engineers , promote best practices, and represent technical expertise in high-level client discussions. - Make key architectural decisions and drive engineering standards across the organization.

- 10+ years of backend software engineering experience , with demonstrable leadership in the fintech, payments, or blockchain space. - Mastery of TypeScript plus deep expertise in one or more systems languages (e.g., Rust, Go, C++ ). - Proven track record building scalable APIs, robust infrastructure, and developer platforms. - Deep expertise with databases (e.g., PostgreSQL, DynamoDB, NoSQL) and major cloud platforms (e.g., AWS ). - Strong knowledge of microservices architecture, CI/CD pipelines, observability tools, and the Secure Software Development Life Cycle (SSDLC). - Familiarity with applied cryptography , Public Key Infrastructure (PKI), and secure backend architectures. - Exceptional problem-solving skills , clear communication, and the ability to influence technical direction across teams.

- Title: Principal Software Engineer - Salary: $220,000-300,000 per year (full-time) - Equity: 150-300 stock options vested over 4 years - Healthcare & Retirement: Comprehensive Healthcare coverage and 401K plan. - Equipment: High-end work equipment provided (MacBook Pro + essentials). - Travel: Covered travel expenses.