Hiring.Camp

Principal Engineer

RFS Group

·

Mar 23, 2026

Salary
$250k – $300k
Location
, San Francisco, CA,
Workplace
Remote
Type
Full-time
Department
Engineering
Seniority
Lead
Source
RecruiterFlow

Description

Who is Recruiting from Scratch: 
Recruiting from Scratch is a specialized talent firm dedicated to helping companies build exceptional teams. We partner closely with our clients to deeply understand their needs, then connect them with top-tier candidates who are not only highly skilled but also the right fit for the company’s culture and vision. Our mission is simple: place the best people in the right roles to drive long-term success for both clients and candidates.
 

Title of Role: Principal Engineer (AI Platform)
Location: Remote (United States)
Company Stage of Funding: Series A (~$40M raised)
Office Type: Fully Remote (US-based)
Salary: $250,000 – $300,000 + Equity


Company Description

Our client is a well-funded Series A startup building critical infrastructure for production AI systems. Their platform focuses on helping companies monitor, diagnose, and remediate issues in generative AI applications—one of the most pressing challenges in deploying AI at scale today.

With strong backing, an experienced leadership team, and a product-driven approach, the company is entering a key growth phase as they prepare to launch and scale adoption. This is an opportunity to join early and shape the technical foundation of a category-defining AI platform.


What You Will Do

  • Own the technical vision and architecture for a production-grade AI platform focused on reliability, observability, and remediation

  • Design and scale systems that support evaluation pipelines, inference orchestration, tracing, and AI performance monitoring

  • Partner closely with product and executive leadership to translate ambiguous problems into scalable technical solutions

  • Define and implement best practices around system performance, latency, cost efficiency, and safety

  • Lead architectural decision-making across multiple projects and systems

  • Mentor senior engineers and elevate the technical bar across the organization

  • Contribute selectively to hands-on coding for critical systems and complex technical challenges

  • Establish metrics and frameworks to ensure production reliability and continuous improvement


Ideal Candidate Background

  • 10+ years of software engineering experience, currently operating at a Principal, Staff, or equivalent level

  • Strong background in building and scaling production systems, ideally including AI-powered products or platforms

  • Proven ownership of systems from concept through production and iteration

  • Deep expertise in backend and distributed systems, with working knowledge of full-stack technologies

  • Strong experience with Python and familiarity with TypeScript, Node.js, and modern web frameworks

  • Experience working in fast-paced, ambiguous environments with high ownership

  • Demonstrated ability to lead architectural design and influence technical direction

  • Strong communication skills with the ability to collaborate across engineering, product, and leadership


Preferred

  • Experience building or scaling generative AI systems, LLM-based products, or AI infrastructure

  • Familiarity with observability, monitoring, or MLOps platforms

  • Experience with tools and frameworks such as OpenTelemetry, Kubernetes, or cloud platforms (AWS, GCP, Azure)

  • Background in B2B SaaS, developer tools, or AI infrastructure companies

  • Experience mentoring senior engineers or leading technical initiatives across teams


Compensation and Benefits

  • Competitive base salary: $250,000 – $300,000

  • Meaningful equity in a high-growth Series A company

  • Fully remote work environment (US-based) with flexible hours

  • Opportunity to work directly with experienced leadership and shape a core AI platform

  • High-impact role with significant ownership and influence over technical direction

  • Fast, efficient interview process (typically 1.5–2 weeks)


This is a high-leverage opportunity for a senior technical leader to define how production AI systems are built, monitored, and improved—at a time when this problem space is rapidly evolving.


Skills

PythonTypeScriptNode.jsAWSAzureGCPKubernetes

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Remote Principal Engineer at RFS Group • $250k – $300k | Hiring.Camp