Unusual Ventures Logo

Senior Principal Engineer Closed

Job Description

About the Role

We are looking for a Senior Principal Engineer who will define the architectural vision and lead technical execution across our engineering organization. This role is ideal for a seasoned technologist who has designed, implemented, and scaled complex systems; collaborated deeply with cross-functional stakeholders; and delivered high-impact projects — including Generative AI initiatives built using open-source LLM models.

As a senior-most individual contributor, you’ll operate as a hands-on technical leader — setting the company’s technical direction, mentoring engineers across teams, and developing high-quality, production-grade code. You’ll act as a multiplier by pairing deep technical expertise with strong cross-functional

Key Responsibilities

  • Architectural Leadership: Define and evolve the company’s long-term architectural vision. Provide technical direction that balances innovation, scalability, and maintainability.
  • System Design and Scalability: Design, implement, and scale distributed systems and core services to handle growth in data, users, and features.
  • Cross-Team Collaboration: Partner with Product, Engineering and business teams to align technical roadmaps with business objectives. Act as a trusted advisor to Engineering Managers and Staff Engineers.
  • Generative AI Initiatives: Lead or contribute to projects leveraging open-source LLMs (e.g., Llama, Mistral, Falcon, or similar): own model integration, fine-tuning, and scalable deployment pipelines.
  • Technical Excellence: Establish best practices for architecture reviews, design documentation, and system observability to ensure optimal performance and reliability. Drive adoption of modern development frameworks and standards.
  • Hands-on Development: Write clean, efficient, and well-tested code. Contribute directly to core systems and frameworks that enable teams to move faster and deliver higher-quality software.
  • Mentorship & Influence: Coach senior engineers and influence decision-making across teams through technical reviews, design sessions, and hands-on prototyping.
  • Execution and Delivery: Work closely with leadership and stakeholders to turn complex ideas into reliable, production-ready systems that deliver measurable business impact.

Qualifications

  • 12+ years of experience in software engineering, with at least 4+ years in principal or staff-plus roles.

  • Proven track record designing, implementing, and scaling distributed systems or platforms.

  • Experience driving architectural initiatives across multiple teams and domains.

  • Deep understanding of backend architectures, data modeling, and system reliability patterns.

  • Demonstrated success in delivering GenAI or ML-driven applications using open-source LLMs and cloud-native infrastructure.

  • Strong communication skills and the ability to influence technical and non-technical stakeholders.

  • Passion for mentorship, technical leadership, and hands-on coding.

  • Bonus Qualifications

  • â—Ź Experience with multi-tenant SaaS architecture and microservices at scale.

  • â—Ź Familiarity with vector databases, prompt engineering, and AI orchestration frameworks

  • (LangChain, LlamaIndex, etc.).

  • â—Ź Prior experience in shaping technical strategy within high-growth startups or enterprise

  • environments.

Bonus Qualifications

  • Experience with multi-tenant SaaS architecture and microservices at scale.
  • Familiarity with vector databases, prompt engineering, and AI orchestration frameworks (LangChain, LlamaIndex, etc.).
  • Prior experience in shaping technical strategy within high-growth startups or enterprise environments.

What Success Looks Like

  • You’ve defined and evangelized a cohesive architectural roadmap adopted across teams.
  • You’ve guided at least one major Generative AI initiative from prototype to production.
  • You’re a sought-after mentor and thought leader within the engineering organization.
  • Systems you design are measurable in their scalability, reliability, and developer productivity gains.

747 similar remote jobs

Explore latest remote opportunities and join a team that values work flexibility.

Remote companies like Unusual Ventures

Find your next opportunity with companies that specialize in Venture Capital, Investing, Recruiting, and Hiring. Explore remote-first companies like Unusual Ventures that prioritize flexible work and home-office freedom.

RoseRyan Logo

RoseRyan

On-demand finance, accounting, and marketing consulting for businesses from startups to Fortune 500.

View company profile →
Goldstone Partners, LLC Logo

Goldstone Partners, LLC

A search and talent advisory firm connecting organizations with talent and offering fractional talent acquisition solutions.

View company profile →
Hatch IT Logo

Hatch IT

IT consulting and professional services for software development, cybersecurity, and data solutions.

View company profile →
Axiom Zen Logo

Axiom Zen

A venture studio that turns ideas into companies by testing emerging technology and building high-growth businesses.

View company profile →
VRP Consulting Logo

VRP Consulting

A global full-service Salesforce consulting, development, and outsourcing partner.

View company profile →
Ten Mile Square Technologies, LLC. Logo

Ten Mile Square Technologies, LLC.

Provides enterprise technology consulting, software development, and strategy services for Fintech, Healthtech, and SaaS companies.

View company profile →

Project: Career Search

Rev. 2026.3

[ Remote Jobs ]
Direct Access

We source jobs directly from 21,000+ company career pages. No intermediaries.

01

Discover Hidden Jobs

Unique jobs you won't find on other job boards.

02

Advanced Filters

Filter by category, benefits, seniority, and more.

03

Priority Job Alerts

Get timely alerts for new job openings every day.

04

Manage Your Job Hunt

Save jobs you like and keep a simple list of your applications.

21,000+ SOURCES UPDATED 24/7