Numeral (YC W23)

Software Engineer – Infra

Numeral (YC W23)

full-time

Posted on:

Location Type: Hybrid

Location: San FranciscoCaliforniaUnited States

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Salary

💰 $180,000 - $300,000 per year

Job Level

About the role

  • Design and build highly scalable, secure, and reliable infrastructure to support critical APIs, services, and data pipelines.
  • Lead infrastructure architecture decisions for performance, observability, and fault tolerance.
  • Drive improvements in system reliability, monitoring, and incident response.
  • Collaborate closely with product, platform, and data engineering teams to enable rapid feature development without compromising stability.
  • Automate infrastructure management through infrastructure-as-code, CI/CD pipelines, and container orchestration.
  • Champion best practices in operational excellence, disaster recovery, and distributed systems design.

Requirements

  • 7+ years of experience building and scaling backend or infrastructure systems in high-growth environments
  • Proficiency in Node.js, PostgreSQL, Redis, and AWS (or equivalent cloud platforms)
  • Experience managing containerized workloads using tools like Kubernetes, ECS, or similar
  • Expertise in observability tooling (e.g., Datadog, Prometheus, OpenTelemetry) and monitoring pipelines
  • Proven ability to design fault-tolerant, distributed systems at scale
  • Strong debugging and performance optimization skills across the stack
  • Exceptional collaboration and communication skills, with experience partnering cross-functionally
  • Startup mindset: Not scared of ambiguity and hungry for rapid growth
  • Intensity & Ownership: This is not a 9-5 — we’re scaling rapidly and have a massive opportunity ahead of us.
  • Customer Obsession: You deeply care about the user experience and solving their problems
Benefits
  • Competitive salary and equity - you’ll share directly in the company’s success
  • Full medical, dental, and vision coverage
  • Wellness perks like Headspace and the Peloton One App
  • 401(k) to help you build long-term financial security
  • Lunch and snacks when you’re in the office
  • Regular team offsites and company events as we grow
  • A culture built on ownership - your work matters and people will see it!
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
Node.jsPostgreSQLRedisAWSKubernetesECSobservability toolingDatadogPrometheusOpenTelemetry
Soft Skills
collaborationcommunicationdebuggingperformance optimizationintensityownershipcustomer obsession