SignalfireVerified Source

Principal Software Engineer, VC-Backed Startups

170K–270K
Onsite · New York, New York
Posted August 12, 2026
payroll

Overview

Join SignalFire's talent network as a Principal Software Engineer to architect scalable, high-performance full stack applications for VC-backed startups. You will shape technical strategy, design end-to-end systems, and mentor engineering teams across a portfolio of 200+ companies in AI, cybersecurity, healthtech, fintech, developer tools, and enterprise SaaS. Work directly with founders and product leaders to align technology with business goals. This role offers exclusive access to early-stage opportunities and the chance to influence technical direction from day one.

What You'll Do7

  • 1Define and drive technical architecture, full stack development strategy, and best practices.
  • 2Build scalable, high-performance applications using React, Node.js, Django, and FastAPI.
  • 3Design and maintain APIs, microservices, and cloud-native solutions on AWS, GCP, and Azure.
  • 4Optimize performance, security, and reliability across the application stack, leveraging Docker and Kubernetes.
  • 5Work with founders and product managers to align business and technology goals.
  • 6Establish code review, testing, and deployment standards using CI/CD pipelines and Terraform.
  • 7Mentor senior engineers, fostering a culture of technical excellence and collaboration.

Requirements9

  • 18+ years in full stack development with a strong record of technical leadership.
  • 2Expertise in front-end frameworks: React, Angular, Vue.js, or Svelte.
  • 3Expertise in back-end frameworks: Node.js, Django, Flask, Ruby on Rails, or FastAPI.
  • 4Strong experience with databases: PostgreSQL, MySQL, MongoDB, DynamoDB, or Redis.
  • 5Proficiency with cloud platforms: AWS, GCP, or Azure.
  • 6Experience with containerization: Docker and Kubernetes.
  • 7Proficiency in JavaScript, TypeScript, Python, Ruby, Go, or Java.
  • 8Strong background in CI/CD, DevOps, and infrastructure-as-code tools like Terraform.
  • 9Experience mentoring engineers and leading large-scale technical projects.

Salary Insight

$170 - $270k per year

Location

Typeonsite
LocationNew York, New York

Required Skills

ReactNode.jsAWS
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