Principal Engineer - C# - Hybrid

CyberCoders; Denver (CO); Hybrid; USD 140,000 - 190,000; Full time

Benefits offered by this job

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

Mental Health and Wellbeing

Volunteering day

Job summary

CyberCoders seeks a senior software engineer to anchor engineering across the stack on a cross-border payments platform. You will set technical direction, design high-impact systems, and mentor engineers while still shipping production code on critical paths.

You will work with product, design, compliance and leadership to translate ambiguity into clear, shippable plans, drive modern deployment on AWS, and adopt AI tooling across the SDLC in a hands-on, IC-focused role.

Qualifications

• 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.
• Frontend fundamentals: responsive design, accessibility, web performance, and internationalization.
• Solid SQL and relational database fundamentals.
• Deep system design and architecture experience, including microservices and event-driven patterns.
• Track record anchoring large cross-team technical efforts as an IC, setting technical direction.
• Experience mentoring engineers through design reviews and sponsorship, without managing them.
• Daily use of agentic coding tools and a clear POV on AI adoption across the SDLC.
• Production AWS experience, deployment, CI/CD, and native services (SQS, DynamoDB, S3, ECS, Lambda).

Responsibilities

• Anchor the engineering on complex, high-impact problems across the stack.
• Set technical direction and own consistency and standards platform-wide.
• Mentor engineers through design reviews and sponsorship, without managing them.
• Stay hands-on and ship production code on the critical path.
• Partner with product, design, compliance, and leadership to turn goals into clear plans.
• Lead modernization from legacy services into the modern stack with architects and leads.

Skills

Full stack

Frontend frameworks

Backend development

System design

Mentorship

AI adoption

AWS deployment

Tools

Copilot

Cursor

Claude Code

Job description

We are a cross-border payments platform. We help SMEs and consumers in the US, UK, Canada, Australia, and New Zealand collect, convert, hold, and send money across markets. We're small enough that your code ships fast and your decisions matter.

What you will be doing:

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

What You Need:

• 8+ yrs 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.

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