Senior Software Architect

SBS Creatix; Boulder (CO); Hybrid; USD 150,000 - 210,000; Full time

Job summary

SBS Creatix is seeking a Senior Software Architect in Boulder, CO, to own the core architectural direction for a high-scale B2B SaaS platform. You will work directly with founders on foundational technology decisions and leverage AI-accelerated tooling to drive delivery with a small, focused team.

The ideal candidate has senior/staff-level software architecture experience in B2B SaaS, strong C# expertise, and a track record of taking ownership from day one.

Qualifications

• Proven track record as a senior/staff-level software architect, ideally in B2B SaaS.
• Experience integrating AI features into business applications, or WebAssembly.
• Ability to own and drive technical direction from day one.

Responsibilities

• Own the core architecture for a B2B SaaS platform built for scale.
• Collaborate with founders and leadership on foundational technology decisions.
• Build with AI-accelerated tooling rather than a large dev team.
• Set the technical bar as one of the company's first architects.

Skills

Senior software architect

C# expertise

AI features

WebAssembly

Tools

Design System IDE

Job description

We're hiring a Senior Software Architect for a fully funded SaaS startup in Boulder, CO - but only if you've already done the job at a senior/staff level. Deep C# expertise required; small team, AI-accelerated build process, real ownership from day one. No C2C offers please and candidates who require sponsorship will not be considered.

Senior Software Architect - Boulder, CO (Hybrid, Direct Hire)

Our client is a fully funded SaaS startup building an enterprise task-governance platform from the ground up - and they need a true senior architect to help build it.

This isn't a growth role. They want someone who has already operated as a senior/staff-level architect, not someone stepping into the title for the first time.

What makes this different:

the engineering team is staying small on purpose. AI-driven accelerators and an internal Design System IDE pipeline are automating a growing share of implementation, so architects here spend more time writing and owning code - not managing a large team.

What you'll do:

• Own the core architecture for a B2B SaaS platform built for scale
• Work directly with founders and leadership on foundational technology decisions
• Build with AI-accelerated tooling instead of a traditional-sized dev team
• Set the technical bar as one of the company's first architects

What you need:

• Proven track record as a senior/staff-level software architect, ideally in B2B SaaS
• A plus: experience building AI features into business applications, or WebAssembly

Compensation is market rate for Boulder. Hybrid - 3 days/week onsite.