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Principal Software Engineer / Architect (Scale a Rails App from 7M to 35M+ users)

High Country Search Group
Denver, CO Full Time
POSTED ON 8/3/2026 CLOSED ON 8/11/2026

What are the responsibilities and job description for the Principal Software Engineer / Architect (Scale a Rails App from 7M to 35M+ users) position at High Country Search Group?

Hiring: Principal Software Engineer / Architect (Scale a Rails App from 7M to 35M users)


RECRUITER OVERVIEW:

Hey, I'm Will — Rumor has it I'm Colorado's #1 Most Connected, Respected & Bald-est 👨 🦲 #DevRecruiter™. As an agency software engineering recruiter, my team and I are actively and continually partnered with an ever-growing rolodex of private & public tech companies, as well as VC backed and self-funded startups, Pre-Seed through Acquisition/IPO...🚀 What these companies have in common is that they ALL are looking to Hire "Uncommonly Good" Founding, Mid, Senior, Lead, Staff & Principal Software Devs ... and of course, the Leaders of these Software Development Teams.


A LITTLE ABOUT THE ROLE

I am helping one of my favorite clients hire a Principal Software Engineer / Architect as they scale a Rails App from 7M to 35M users. The person they hire will be a KEY contributor to lead the architecture of their very successful application. Some details on this one.


This is an EXTREMELY high-impact position focused on modernizing a monolithic Ruby on Rails architecture to support 5x growth (scaling from 7M to 35M users). This is a technical visionary role for a "force multiplier" who will spend 30-40% of their time writing code for critical-path migrations and proofs-of-concept, while simultaneously setting the 2-5 year architectural roadmap. The core mission is to decompose overgrown domain models and redesign data architectures to eliminate performance bottlenecks and technical debt without causing downtime for their 25,000 active clients with millions of end users.


REQUIREMENTS

  • Must have worked closely with at least 2 iterations of a mega-scale product transforming or merging (i.e., rearchitecting a large-scale monolith to something with millions of users).
  • Must be an expert in System Design (APIs, event-driven patterns, service boundaries)
  • Must be an expert in decomposing overgrown domain models/ with Postgres technical debt
  • Must be AI-native, utilizing agentic workflows (Python, Go, Elixir experience valued) to accelerate output
  • Must be able to take on responsibility for architectural health & shape a roadmap at scale
  • Must possess the ability to lead and define the technical path forward where no pre-determined plan exists.
  • Need to be willing to get your hands dirty: This is a hands-on position, with someone who has owned this type of initiative before as a Principal, Staff, or Lead level.


LOCATION

This role is based in Denver HQ, and the expectation of work is HYBRID, 3 days a week.


COMPENSATION

The salary range for this position is between $170K - $200K


NEXT STEPS

If you feel that your background and goals align with this role, please drop your resume here. If there is synergy, we will reach out ASAP.


Cheers

,-Will


NOTE: This client is unable to offer sponsorship or visa transfers at this time. If you are interested and qualified after reviewing ALL of the requirements carefully, please submit your resume via LinkedIn and do not send any further personal messages. Rest assured, your application WILL be reviewed for a potential fit along with all other resumes via the applicant reviewing portal, and we WILL move forward with the best-fitting candidates. Due to an overwhelming amount of AI-generated spam messages via email and LinkedIn (and from folks who are clearly just not reading the Job Description), personal messages are now being disregarded. Thanks!


___________________________________


Will Wegert — Colorado's #1 Most Bald-est 👨 🦲 #DevRecruiter™ | AKA Colorado's most Reliable, Respected, and Recognized Software Engineering


Salary : $170,000 - $200,000

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