Infra Platform Engineer – Scale & Reliability

Numeral; San Francisco (CA); On-site; USD 180,000 - 300,000; Full time

Benefits offered by this job

Competitive salary and equity

Medical, dental, and vision coverage

Wellness perks (Headspace, Peloton)

401(k) plan

Lunch and snacks in the office

Regular team offsites

Job summary

Numeral is seeking a foundational Software Engineer (Infrastructure) to design and build core infrastructure, improve reliability, and ensure scalability for a rapidly growing, AI-native tax platform.

You will own architecture decisions, shape technical direction, and collaborate across product, platform, and data teams to deliver secure, scalable services at scale. This role demands ownership, ambiguity tolerance, and a strong passion for reliability.

Qualifications

• 7+ years of experience building and scaling backend or infrastructure systems in high-growth environments.
• Proficiency in Node.js, PostgreSQL, Redis, and AWS.
• Experience managing containerized workloads with 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.

Responsibilities

• 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.

Skills

Node.js

PostgreSQL

Redis

AWS

Kubernetes

Observability tooling

Distributed systems

Tools

Datadog

Prometheus

OpenTelemetry

Kafka

Terraform

Job description

Numeral is seeking a foundational Software Engineer (Infrastructure) to design and build core infrastructure, improve reliability, and ensure scalability for a rapidly growing, AI-native tax platform.

You will own architecture decisions, shape technical direction, and collaborate across product, platform, and data teams to deliver secure, scalable services at scale. This role demands ownership, ambiguity tolerance, and a strong passion for reliability.