# Senior Staff Machine Identity and PKI Engineer at Nscale

- Company: Nscale
- Status: Open
- Workplace: On-site
- Location: AMER
- Level: Staff
- Discipline: Security
- Employment: Full-time
- Salary: $210K–270K
- Posted: 2026-11-03
- Apply: https://job-boards.eu.greenhouse.io/nscaleoperationsukltd/jobs/5025352101

## Description

About the role
 Give every service account, workload, certificate, token and AI agent at Nscale an identity with a named owner, the least access it needs, and credentials that expire and renew automatically.
 As our Senior Staff Machine Identity and PKI Engineer, you'll set technical standards across SRE, platform and product. You'll own decisions with long-term consequences, from certificate authority (CA) design to post-quantum planning, bringing deep specialist judgment to machine identity, secrets and PKI.
 What you'll do
• Build the non-human identity register, covering cloud service accounts, CI credentials, API keys, tokens, certificates and agent identities, each with an owner, scope and rotation date.
• Replace static, long-lived credentials with short-lived workload identity using GitHub Actions OIDC, cloud workload identity federation, Kubernetes service account tokens, and SPIFFE/SPIRE where it fits.
• Own Nscale's PKI and lead implementation of a certificate lifecycle management platform, with selection currently under way. Automate issuance and renewal using ACME, cert-manager and EST/SCEP, and implement device certificates for managed endpoints.
• Set the machine secrets standard and partner with SRE, who run HashiCorp Vault, on how workloads authenticate to it and use its PKI.
• Define how AI agents and tool integrations get their own identity, a human owner, scoped access and a tested kill switch.
• Plan for post-quantum cryptography across the certificate estate.
 What you'll bring
• 10+ years in platform engineering, infrastructure security or SRE, with d

More Nscale roles: https://deviantjobs.com/companies/nscale