Senior Infrastructure Engineer

Cogent Security

$100K — $300K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5-7 years of software engineering experience specializing in core infrastructure.
  • Strong hands-on coding skills, particularly in AWS.
  • Proficiency with Clickhouse Cloud at the serving layer.
  • In-depth knowledge of Spark and micro-batching techniques.
  • Proven experience managing large-scale projects involving multiple stakeholders.
  • Familiarity with AI development principles and agentic coding.
  • Experience in startups or early-stage companies (up to ~200 employees) with large-company exposure.

Responsibilities

  • Build and optimize the data platform focusing on Clickhouse and Postgres.
  • Develop on-prem deployment strategies for the product to attract large customers.
  • Enhance security systems to protect against threats.
  • Construct an infrastructure and platform layer for agent-driven product development.
  • Lead large-scale infrastructure projects from inception to completion across various stakeholders.

Benefits

  • Collaborative work environment within a small, agile team.
  • High-ownership role with significant influence over infrastructure decisions.
  • Opportunity to work on cutting-edge technology in a startup atmosphere.
Full Job Description
About the Role

We're hiring a Senior+ Infrastructure Engineer to help build a secure, reliable, cost-effective, and agent-forward foundation for running Cogent's products and services. You'll join a small, fast-growing Core Platform pod (that includes infrastructure, security, and compliance) and work hands-on across our data platform, our security systems, and the platform layer our agents use to build and ship the product. Ultimately you'll help keep the company, our customers, and our employees protected against external and internal threats.

This is an early-stage, high-ownership role for an engineer who has built core infrastructure at startup scale and can operate across many stakeholders.

What You'll Do
  • Build and optimize our data platform, with a focus on storage-level optimizations across Clickhouse and Postgres
  • Make our product deployable on-prem to unlock onboarding for large customers - the last mile needed to land seven-figure accounts
  • Harden our security systems
  • Build an agent-first infra and platform layer, since agents will build our product and need a foundation they can rely on
  • Drive large-scale infrastructure projects end-to-end across a variety of stakeholders


About you
  • 5-7 years of software engineering experience with deep core infrastructure expertise and strong hands-on coding
  • Hands-on AWS experience
  • Experience with Clickhouse Cloud at the serving layer
  • Real depth in Spark and micro-batching
  • A track record of driving large-scale projects across multiple stakeholders
  • Experience building in an AI-forward capacity, with agentic coding fundamentals
  • Startup or early-stage background (up to ~200 people), ideally blended with large-company experience


Bonus Points
  • Prior startup founder experience
  • API gateway auth experience with Envoy or Istio
  • A spike in GCP and Azure
  • SRE strength: agent-forward, but able to operationalize, debug, and triage
  • Familiarity with Hashicorp Vault, MicroVM (Runloop), and SPIFFE / SPIRE for agent identity
For California Based Applicants

The standard base salary range for this position is $100,000 - $300,000 annually. Compensation offered will be determined by factors such as location, job level, job-related knowledge, skills, and experience. Certain roles may be eligible for variable compensation, equity, and benefits.

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