Principal Engineer

About the role

We are a cross-border payments platform helping SMEs and consumers in the US, UK, Canada, Australia, and New Zealand manage their financial transactions efficiently. This role is a new position within our company.

Responsibilities

• Anchors the engineering on complex, high-impact, and open-ended problems across the stack, setting the technical approach other engineers build around.
• Sets technical direction and owns the consistency and standards the platform depends on across squads.
• Acts as a force multiplier: raises the level of the engineers around you through design review, mentorship, sponsorship, and how the team adopts AI, without managing them.
• Stays hands-on, shipping production code on the critical path and the parts that most need senior judgment.
• Pairs with product, design, compliance, and engineering leadership to turn ambiguous goals into clear, shippable technical plans.
• Uses agentic coding tools (Copilot, Cursor, Claude Code, or equivalent) daily across the SDLC, and leads modernization from legacy services into the modern stack alongside architects and team leads.

Requirements

• 8+ years building production software across the full stack, end-to-end.
• Strong frontend proficiency with Vue.js, React, or equivalent.
• Strong backend proficiency in C# / .NET preferred; other OOP languages welcome (Java, Kotlin, Go, or equivalent).
• Frontend fundamentals: responsive design, accessibility, web performance, and internationalization.
• Solid SQL and relational database fundamentals.
• Deep system design and architecture experience, including service-oriented or microservices and event-driven patterns.
• Track record anchoring large, ambiguous, cross-team technical efforts as an individual contributor: setting the technical direction other engineers build around, with impact measured by the engineers and teams you raise, not by personal output.
• Experience mentoring and growing engineers through design review, technical guidance, and sponsorship, without managing them.
• Daily use of agentic coding tools (Copilot, Cursor, Claude Code, or equivalent) across the SDLC, and a clear point of view on how an engineering team should adopt AI.
• Production experience on AWS, including hands-on deployment, CI/CD pipelines and modern deployment practices, and native services such as SQS, DynamoDB, S3, ECS, and Lambda.
• Payments, FX, or regulated-industry experience.
• Strong written and verbal communication, including the ability to align engineers and stakeholders around a technical direction.

Qualifications

• Production experience on AWS, including hands-on deployment, CI/CD pipelines and modern deployment practices, and native services such as SQS, DynamoDB, S3, ECS, and Lambda.
• Payments, FX, or regulated-industry experience.

Skills

• Agentic coding tools (Copilot, Cursor, Claude Code, or equivalent)
• AWS
• C#, Java, Kotlin, Go, Vue.js, React
• SQL, relational databases
• System design and architecture
• Mentorship and growth of engineers

Benefits

• Medical, Dental & Vision Insurance
• 401K Plan with Match
• Employee Stock Purchase Plan
• Paid Vacation / Sick Leave
• Hybrid Work Schedule
• Tuition Assistance
• Growth Opportunities
• Corporate gatherings & team bonding events
• Plumm Mental Health and Wellbeing
• Volunteering day for a charity of your choice

Pay

Compensation is commensurate with experience.

Schedule

Hybrid work schedule is offered.