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Principal Core Infrastructure Engineer at Highnote

Join a powerhouse fintech team founded by leaders from Braintree and PayPal. As a Principal Core Infrastructure Engineer at this $145M Series B scale-up, you will architect the global GCP/AWS infrastructure powering the next generation of embedded finance. Backed by elite investors like Oak HC/FT and Costanoa Ventures, you'll have the autonomy to build high-scale payment systems from the ground up. If you are a Kubernetes expert passionate about AI-driven engineering and global-scale distributed systems, this is your chance to define the future of card issuance and program management from their San Francisco headquarters.

Overview

Role overview

As a Principal Engineer, you will architect and evolve the cloud infrastructure powering an advanced all-in-one card issuance and program management platform. You will lead the design of secure, multi-continental systems across GCP and AWS, ensuring the stability and performance required to transform how global businesses embed modern financial services.

Company

Highnote

Highnote

$145M+ Series B fintech leader backed by Oak HC/FT, Costanoa Ventures, and the CEO of Pinterest

Responsibilities

What you will do

  • Collaborate cross-functionally to build a secure, cost-effective infrastructure platform that empowers engineering teams to iterate rapidly via modern CI/CD pipelines.
  • Design and implement robust monitoring, alerting, and container orchestration frameworks across GCP and AWS to maintain mission-critical payment services.
  • Lead the technical evolution of compute, storage, and networking layers to ensure 100% reliability for ledger, wallet, and card-processing functionalities.

Candidate profile

Who this is a fit for

  • 12+ years of expertise in infrastructure or software engineering with a proven track record of building large-scale distributed systems and cloud networking.
  • Deep technical proficiency in Kubernetes, Istio, and cloud-native services like Google Spanner, BigQuery, or Dataflow, alongside strong Java or Python skills.
  • Advanced experience with AI-driven development tools (like Claude Code) and a commitment to utilizing AI to accelerate the full software development lifecycle.

What makes it remarkable

Why this role is remarkable

  • Join a high-growth scale-up founded by former Braintree, PayPal, and Lending Club executives that has raised over $145M from top-tier VCs like Westcap and Adams Street.
  • Architect a global payments infrastructure from the ground up, moving into multiple continents to support use cases that don't even exist yet in the embedded finance space.
  • Work in a high-leverage environment with a flat hierarchy, gaining direct exposure to leadership while utilizing cutting-edge AI-powered development tools to push engineering boundaries.

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