Principal Software Engineer - Remote Systems Architect

Protingent; Redmond (WA); Hybrid; USD 155,000 - 215,000; Full time

Job summary

Protingent Staffing in Redmond, WA is seeking a Principal Software Engineer to elevate engineering across multiple teams. You will mentor engineers, drive architectural decisions, and own cross‑cutting concerns such as scalability, reliability, and security.

You will work hands-on across Go, TypeScript, C#, and React, participate in on‑call rotations, engage with product and executives, and shape system architectures for B2B portals, APIs, and internal platforms.

Qualifications

• 10+ years of software development with progression to shaping org-wide software approaches.
• Deep architectural experience spanning multiple services, teams, or domains.
• Hands-on engineering across the full stack with capability to dive deep in Go, TS, C#, React.

Responsibilities

• Elevate engineering judgment through design reviews, architecture guidance, and mentorship.
• Troubleshoot and resolve the hardest cross-system problems in the stack.
• Participate in on-call rotations to ensure reliability and quick issue resolution.
• Engage with product and exec stakeholders to assess feasibility, cost, and risk of strategic initiatives.
• Drive architectural decisions and technical direction across teams and systems.

Skills

Go

TypeScript

C#

React

Cloud architecture

SQL databases

Data pipelines

On-call & reliability

Mentorship

Full stack engineering

Tools

GraphQL

Infrastructure as Code

Containerization

Observability

Job description

Protingent Staffing in Redmond, WA is seeking a Principal Software Engineer to elevate engineering across multiple teams. You will mentor engineers, drive architectural decisions, and own cross‑cutting concerns such as scalability, reliability, and security.

You will work hands-on across Go, TypeScript, C#, and React, participate in on‑call rotations, engage with product and executives, and shape system architectures for B2B portals, APIs, and internal platforms.