Sr. Software Developer - Core Platform

THE ROLE

TripArc's ADX platform is building the next generation of its core booking infrastructure — and getting it right, every time, at scale, is not optional. This Senior Backend Developer role sits at the heart of that build, on a core platform pod responsible for delivering the commercial and transactional capabilities that power the advisor experience and the business behind it. 

The roadmap is concrete, with a well-defined sequence of initiatives, each with delivery windows. You'll own meaningful slices of that build, working directly with Product and UX to design, implement, and ship backend services that are reliable, accurate, and built to last. 

This is a backend-focused role. You'll work primarily in .NET Core microservices and SQL Server, with Angular touchpoints where needed. Experience in complex transactional or commercial domains is expected — you understand how to build systems where correctness and reliability are non-negotiable. 

HOW WE BUILD

We expect every developer on this team to use AI coding tools — Claude, GitHub Copilot, Cursor, whatever fits your flow — as a standard part of how you develop. Not as an experiment, and not as a replacement for engineering judgment. We move faster because of these tools, and we ship with confidence because of the quality gates, code review culture, and testing discipline that sit alongside them. If you've figured out how to get real leverage from AI-assisted development without cutting corners on quality, you'll fit right in here. 

WHAT YOU'LL WORK ON

• 5+ years with C# / .NET Core — you've built production microservices and know how to make them operationally sound 

• Experience in transactional or commercial domain work — you've built systems where accuracy, state management, and edge case handling are critical, and you understand what that demands architecturally 

• SQL Server fluency — complex schemas, stored procedures, query optimization, and the discipline to get financial data right 

• RESTful API design and third-party service integration experience 

• Event-driven architecture experience — Azure Service Bus, NServiceBus, or equivalent messaging patterns 

• Strong understanding of data correctness requirements — audit trails, state consistency, and the discipline to build systems where precision is non-negotiable 

• Comfort working in a mature, high-volume platform where correctness is non-negotiable 

• You use AI development tools — Claude, Copilot, etc. — as standard workflow, not novelty