Principal Software Engineer - VC Backed Startups

Company: SignalFire
Location: San Francisco
Posted on: June 1, 2025

Job Description:

Join SignalFire's Talent Network for Principal Software Engineer Roles at VC-Backed StartupsAt SignalFire, we partner with top early-stage startups that are shaping the future of technology. Our spans 200+ innovative companies across AI, cybersecurity, healthtech, fintech, developer tools, and enterprise SaaS.We're looking to connect with exceptional Principal Front-End, Back-End, and Full-Stack Engineers who are excited about driving technical strategy, shaping architecture, and building scalable full-stack applications at high-growth startups. By joining SignalFire's Talent Network, your profile will be shared with our portfolio companies, giving you visibility into exclusive early-stage opportunities that may not be publicly listed.This is not an application for a specific job. Instead, this is a way to get on the radar of VC-backed startups that are actively hiring technical leaders in full-stack engineering. If a company is interested in your background, they may reach out directly.Who Should Join?We're looking for engineers who are: Passionate about architecting scalable, high-performance full-stack applications Excited to lead technical decision-making and mentor engineering teams Experienced in designing end-to-end systems, from modern front-end UIs to robust back-end servicesTypical Roles & Responsibilities

• Define and drive technical architecture, best practices, and full-stack development strategy
• Design, build, and maintain scalable, high-performance applications across the front-end and back-end
• Develop APIs, microservices, and cloud-native solutions to support large-scale applications
• Optimize performance, security, and reliability across the application stack
• Work closely with founders, product managers, and engineering teams to align business and technology goals
• Establish and lead code review, testing, and deployment best practices
• Mentor and guide senior engineers, fostering a strong engineering cultureCommon QualificationsWhile each startup has its own hiring criteria, many principal full-stack engineering roles in our network look for:
  • 8+ years of experience in full-stack development, with a strong record of technical leadership
  • Expertise in front-end frameworks (React, Angular, Vue.js, Svelte) and back-end frameworks (Node.js, Django, Flask, Ruby on Rails, FastAPI)
  • Strong experience with databases (PostgreSQL, MySQL, MongoDB, DynamoDB, Redis)
  • Proficiency in cloud platforms (AWS, GCP, Azure) and containerization tools (Docker, Kubernetes)
  • Experience with distributed systems, high-availability architectures, and event-driven designs
  • Proficiency in JavaScript, TypeScript, Python, Ruby, Go, or Java
  • Strong background in CI/CD, DevOps, and infrastructure-as-code tools
  • Experience in mentoring engineers and leading large-scale technical projectsTechnologies You Might Work With:
    • Languages & Frameworks: JavaScript, TypeScript, Python, Ruby, Golang, Java, React, Angular, Vue.js, Svelte, Node.js, Django, Flask, Ruby on Rails, FastAPI
    • Databases: PostgreSQL, MySQL, MongoDB, DynamoDB, Redis
    • Cloud & DevOps: AWS (Lambda, EC2, S3, RDS), GCP (App Engine, Firestore), Azure, Docker, Kubernetes, Terraform, Jenkins, GitHub Actions
    • Other Tools: GraphQL, REST APIs, WebSockets, Kafka, RabbitMQ, ElasticsearchWhat Happens Next?
    • Submit your application to join SignalFire's Talent Ecosystem.
    • We review applications on an ongoing basis to identify strong candidates.
    • If there's a match, a SignalFire talent partner or a leader from one of our startups may reach out directly.
    • No match yet? We'll keep your profile on file for future full-stack engineering roles in our portfolio.
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Keywords: SignalFire, Livermore , Principal Software Engineer - VC Backed Startups, IT / Software / Systems , San Francisco, California