Staff Platform Engineer

Phizenix Inc.; United States; À distance; USD 180 000 - 260 000; Plein temps

Résumé du poste

Phizenix Inc. seeks a senior platform/infra engineer to lead the design and operation of a production-grade platform. You will build runtime, tenancy isolation, and modular contracts across services, while enabling repeatable, governance-driven deployment pipelines.

You will define identity, network security, and observability strategies, and drive adoption of platform standards across product teams to improve developer outcomes and governance posture.

Qualifications

• 10+ years in software engineering, platform or infra engineering.
• Hands-on IaC at fleet scale with Terraform or OpenTofu.
• Experience operating multi-tenant Kubernetes in production.
• Experience building CI/CD as a shared platform with reusable workflows.
• Strong cloud identity and network security expertise across Azure/AWS/GCP.
• Security and compliance as code with SOC2 / ISO 27001 evidence.

Responsabilités

• Build the platform runtime with container orchestration and tenancy-grade isolation.
• Design composable infrastructure as code at fleet scale, with versioned templates and images.
• Make environment lifecycle one-command: merge PRs, delete env, with automated cleanup.
• Design federated identity and network as a credential-free system.
• Ship telemetry and cost visibility with SLOs, alerting, and fault injection.
• Operate shared delivery pipelines and a gate framework for quality, security, and AI governance checks.
• Push platform standards across product teams and enable migrations onto the platform.

Connaissances

Tenure >10 years

Infrastructure as code

Multi-tenant Kubernetes

CI/CD as platform

Cloud identity & network security

Security & compliance as code

Observability

Go/Python/TypeScript

English communication

Agile methodologies

Outils

Terraform

OpenTofu

Terragrunt

GitHub Actions

Snyk

Checkov

Trivy

OPA

Kyverno

Azure Policy

OpenTelemetry

Backstage

Port

Description du poste

This is a hands-on engineering position where leadership happens through the work. You will move fluidly between building production infrastructure, implementing multi-tenant isolation, hardening pipeline and policy enforcement, and instrumenting production. Your success is measured by what other engineers can consume without hand-holding: modules, pipelines, and patterns that hold up for the second and third consumer.

What You'll Do

• Build the platform's runtime: implement one container-orchestrated runtime, tenancy-grade isolation between client engagements, and the module contracts every product inherits.
• Design composable infrastructure as code at fleet scale, with clear input contracts and state boundaries, published as versioned templates and images for every core component.
• Make the environment lifecycle a one-command operation: created by merging a pull request, destroyed by deleting it, with automated proof nothing is left behind.
• Design identity and network as a federated, credential-free system — one identity per engagement, just-in-time audited privileged access, separate internal and external edges.
• Ship telemetry and cost visibility out of the box for every service: standard alerting, service-level objectives on live data, fault injection, and per-engagement cost attribution including AI spend.

Delivery Pipelines, Security & Compliance Engineering

• Build and operate the shared delivery pipelines every product runs through, and the pluggable gate framework that quality, security, and AI-governance checks plug into with block-on-fail enforcement.
• Implement security and compliance as code: release-blocking scanning on every repository, policy and admission control, signed and attested artifacts, and an audit trail and software bill of materials, including AI components, on every build as SOC2 / ISO 27001 evidence.
• Package the AI-assisted development environment as a versioned, first-class deliverable, and enforce the sandbox boundary for coding agents: default-deny egress, short-lived credentials, isolated shared runners.
• Run the platform as a product measured by developer outcomes — setup time, time to first commit, pipeline duration, gate false-positive rate, adoption — pruning or redesigning controls when governance burden outgrows benefit, and proving every golden path by shipping through it yourself.

Technical Leadership & Engineering Excellence

• Make the platform's architecture decisions decidable — multi-tenancy, cloud posture, identity provider, network edge — by building the spikes and proofs of concept behind them, and produce the security and reliability evidence the program reports against.
• Be the engineer other engineers come to on infrastructure, pipelines, and enforcement:review designs and pull requests, write architecture decision records for anything that closes off future options, and raise the bar for vendor partners through the work rather than formal management.
• Drive adoption of platform standards across product teams, supporting migrations onto the platform where product teams execute and you unblock.

What You'll Need

Required

• 10+ years in software engineering, platform or infrastructure engineering, or a closely related technical field.
• Hands-on expertise in infrastructure as code at fleet scale (Terraform or OpenTofu with Terragrunt or equivalent): module architecture, remote state, multi-environment topology.
• Demonstrated experience operating multi-tenant Kubernetes platforms in production: GitOps, network and admission policy, workload identity, tenant isolation.
• Experience building CI/CD as a shared platform (GitHub Actions or equivalent), with reusable workflow contracts, fleet-scale branch protection, and enforced quality and security gates.
• Strong hands-on command of cloud identity and network security on Azure/AWS/GCP or a comparable hyperscaler: workload identity federation, RBAC, private networking, WAF, DNS.
• Substantive experience with security and compliance as code: scanning toolchains (Snyk, Checkov, Trivy), policy engines (OPA, Kyverno, Azure Policy), supply chain controls (signing, provenance, SBOM), and SOC2 / ISO 27001 control evidence.
• Production observability with OpenTelemetry or equivalent: collector topology, SLOs and error budgets, alert routing, incident management, fault injection.
• Has built and operated production application software as a software engineer, in at least one of Go, Python, or TypeScript, and is fluent in testing strategy, code review, trunk-based delivery, and release management.
• Excellent written and verbal communication skills in English; ability to translate complex technical topics to diverse audiences, including engineering and non-technical stakeholders.
• Experience with Agile methodologies and cross-functional product team collaboration.

Preferred / Additional Qualifications

• Experience building platforms for consulting, advisory, or professional services, including client-isolation and data-residency requirements.
• Familiarity with virtual-cluster and control-plane tooling (vcluster, Crossplane) and developer portals (Backstage, Port).
• Experience operating a platform used by AI coding assistants (Claude Code, GitHub Copilot or similar), including sandboxing of agent tooling.
• Advanced certifications in cloud architecture, Kubernetes, or security (e.g., Azure Solutions Architect, CKA/CKS, CISSP).
• FinOps experience: cost allocation, showback, and cloud cost optimization.
• Demonstrated enthusiasm for developer education — writing internal guides, running workshops, or building internal tooling communities.