About the role

What will you do at Ultra?

OVERVIEW

Ultra is looking for a Senior Software Infrastructure Engineer to design and

implement industry standard company data infrastructure and tooling, along with

airtight information security and architecture, to enable multiple

mission-critical projects for Ultra’s long-term growth. As Senior Infrastructure

Engineer, you'll own the company's data infrastructure and information security

architecture end to end: auditing what exists today, closing the gap to

industry-standard practice within six months, and building the authZ/authN

foundation that makes AI tooling and enterprise customers trust us with their

data. You'll also own the platform that lets engineers and vibe-coders across

Ultra get safe, compliant data access without waiting on you for every request.

This is an in-person NYC role with direct line of sight to top-line business

goals.

WHO YOU ARE

* You have 7+ years in infrastructure/security engineering, with real ownership

of authn/authz systems in production

* You're proficient in Python; a software generalist who knows when to build

vs. buy

* You've led or heavily contributed to a SOC2 (or equivalent) compliance effort

— you know what auditors actually look for

* You're comfortable auditing legacy systems and making the call on what to

fix, replace, or leave alone

* You have experience designing data infrastructure that scales to onboard new

data sources without re-architecting each time

* You're dangerous with LLMs because you know when they're wrong; you've

thought hard about misbehaving agents and what it takes to secure AI tooling

* You can look at a backlog of "we need access to X" requests and pick the

highest-leverage platform investment

* You have a bias toward shipping durable systems over quick patches; you

document decisions so others can build on them

WHAT YOU’LL DO

* Audit existing authn/authz infrastructure and produce a gap analysis against

industry standards

* Design and execute a roadmap to bring infrastructure to industry-standard

within 6 months

* Drive SOC2 compliance workstream — controls, evidence, remediation; turn

compliance requirements into enforceable platform controls

* Build scalable systems/tooling for onboarding new data sources

* Design and implement authorization architecture that securely enables AI

tooling across the company

* Support software engineers and vibe-coders so everyone can ship code safely

and quickly

* Partner with engineering leadership on architecture decisions that support

enterprise-market expansion

BONUS POINTS

* You've built a comprehensive authentication and authorization system at

another company

* You have strong opinions about the best way to implement RBAC (and its

limitations)

Which skills does this role require?

Infrastructure EngineeringSecurity EngineeringPythonAuthn/Authz SystemsSOC2 ComplianceData InfrastructureAI ToolingSystem ArchitectureLegacy System AuditingCloud SecurityPlatform EngineeringAuthnAuthzSOC2ComplianceLegacy SystemsEnterprise SecuritySoftware EngineeringSecurity AuditingScalable SystemsInfrastructure RoadmapLLMsProduct Strategy

Make your next move

Build a shortlist and prepare

Identify the requirements you can demonstrate, then choose examples from your work to discuss with the hiring team.

Build a focused shortlist before you applyCompare role requirements with your experience and give each application a clear reason.
Platform engineering jobsCompare current openings and review what to look for in this role.
Practice explaining your experience in an interviewRehearse your answers before meeting the hiring team.

Review the responsibilities and requirements before adding an opening to your shortlist.