Senior Platform Engineer

Who You Are

You will develop and own key parts of Phaidra's internal developer platform, including golden paths, GitOps workflows, and cloud-native foundations that product and ML teams depend on. The ideal candidate could be described as:

Pragmatic and product-minded. You treat developer experience, reliability, and operational cost as first-class outcomes.

Comfortable partnering across engineering, SRE, and security in an all-remote setting.

Aligned with our values: Transparency, Collaboration, Operational Excellence, Ownership, & Empathy.

**We are seeking a team member based in the United States, Canada, or the UK.

Responsibilities

Developer Platform

Own the delivery of a scoped set of developer platform capabilities end-to-end (design, implementation, rollout, iteration).

Build and evolve paved roads (golden paths, service templates, scaffolding) that make it easy to deploy, operate, and scale services.

Run tight feedback loops with engineers across product and ML teams; measure adoption and eliminate common friction points.

GitOps, CI/CD, and Delivery Workflows

Drive improvements to GitOps workflows via ArgoCD and Terraform automation via Atlantis.

Harden CI/CD on GitLab CI, including pipeline performance, safety, and developer ergonomics.

Design progressive delivery patterns (canary, blue/green) as reusable platform primitives.

Reliability + Operational Excellence

Contribute to SLI/SLO frameworks and shared observability primitives (Prometheus, Grafana, Loki, Tempo, OpenTelemetry).

Participate in the platform team's on-call rotation; reduce toil through automation and better system design.

Improve incident response and postmortem practice so learnings translate into systemic fixes.

Security Defaults + Platform Standards

Embed secure-by-default patterns into platform templates (secrets, IAM, RBAC, NetworkPolicies).

Partner with security on compliance posture (SOC 2, ISO 27001) without slowing delivery.

Infrastructure Foundations

Partner with infrastructure/SRE owners on Kubernetes and core cloud foundations (networking, storage, cluster/platform primitives) where it directly improves developer workflows.

Evolve cloud-native abstractions so the platform remains portable and resilient as our footprint grows (GCP today, with future optionality across providers).

Key Qualifications

5+ years of professional experience in platform engineering, infrastructure engineering, or SRE

Production experience operating in at least one major cloud (GCP, AWS, or Azure)

GitOps fluency with production experience (ArgoCD, Flux, or equivalent), including rollout, drift detection, and recovery patterns

Experience building or operating key components of an internal developer platform (e.g., self-service deployment/operations workflows, golden paths/service templates, developer portals, platform APIs, or developer tooling)

Infrastructure-as-code experience: Terraform plus a configuration system (Kapitan, Helm, Kustomize, or similar)

Software engineering experience in a major high level language. Comfortable writing libraries, CLIs or APIs.

Demonstrated ability to lead technical initiatives across multiple teams

Preferred Skills & Experience

Experience in organizations with distinct platform and productivity engineering functions.

GitLab CI pipeline design and infrastructure operation at scale.

Deep Kubernetes fluency, operating multi-cluster production environments and debugging at the node and controller level.

Distributed tracing and advanced observability (OpenTelemetry, Tempo).

Nice-to-haves

Hands-on AI/ML infrastructure at scale: GPU scheduling, distributed training, model serving, vector stores, or feature stores.

Cost optimization and FinOps practices, especially for GPU and model-serving workloads.

Service mesh and proxy patterns (Envoy, HAProxy, Istio, Nginx).

Multi-cloud experience or cloud-agnostic abstractions (Crossplane, Terraform modules, etc.).

Kubernetes operator development and deployment.

Our Stack

Languages: Python, Go, Bash

IaC & Config: Kapitan, Terraform, Crossplane

Containers & Orchestration: Kubernetes

CI/CD & Delivery: GitLab CI, ArgoCD, Atlantis

Observability: Grafana, Prometheus, OpenTelemetry

Onboarding

In your first 30 days...

You will be immersed in an onboarding program that introduces you to Phaidra and our product.

You will spend time in the Infrastructure and Engineering orgs, learning how teams operate, interact, and approach problems.

You will read the handbook and our onboarding materials to internalize Abstractions, Standards, Baselines, and Archetypes.

You will set up your development environment and complete an onboarding exercise.

You will learn team standards, release processes, and how we use GitOps and Kapitan.

You will shadow the platform on-call rotation.

By your first 60 days...

You will have a solid understanding of Phaidra's platform and how engineering and research teams consume it.

You will have met with team members across Phaidra and started building collaborative relationships.

You will have completed the onboarding exercise and shipped a first scoped platform improvement (golden path, GitOps change, or self-service tool).

By your first 90 days...

You will be fully integrated into the team and collaborating effectively across the company.

You will have participated in the on-call rotation and contributed improvements to reliability and operational practices.

You will be comfortable with our tooling and drive a cross-team platform initiative with measurable developer impact.

General Interview Process

All of our interviews are held via Google Meet, and an active camera connection is required.

1. Meeting with Operations (30 minutes): The purpose of this interview is to meet you, learn more about your background, discuss what you are looking for in a new position and cover formalities around your application.

2. Hiring Manager interview (30 minutes): This is an introduction call with the hiring manager so that the candidate and the hiring manager can get to know each other better. It will mainly focus on your previous experience and technical background. This meeting is also meant to enable you to ask any questions about the team & role.

3. Technical Interview (60 minutes): This technical interview will involve candidate designing a developer-facing platform capability end to end.

4. Culture fit interview with one of Phaidra’s co-founders (30 minutes): This interview focuses on alignment with Phaidra’s values and the mutual cultural fit.

Base Salary

US Residents:

Tier 1 (Largest highest-cost metros): 149,600 USD - 205,700 USD

Tier 2 (Other major metros): 142,129 USD - 195,415 USD

Tier 3 (Mid-sized metro areas): 134,640 USD - 185,130 USD

Tier 4 (All other locations): 127,160 USD - 174,845 USD

Canada Residents:

Tier 1 (Vancouver): 153,660 CAD - 211,280 CAD

Tier 2 (Toronto): 143,410 CAD - 195,830 CAD

Tier 3 (Montreal): 122,930 CAD - 169,020 CAD

Tier 4 (Smaller cities / rural areas): 112,680 CAD - 154,930 CAD

UK Residents:

Tier 1 (London): 94,917 GBP - 141,908 GBP

Tier 2 (Manchester, Birmingham, Edinburgh, Bristol): 89,332 GBP - 133,560 GBP

Tier 3 (Smaller cities / rural areas): 83,598 GBP - 125,213 GBP

In addition to base salary, this position is eligible for equity. Final salary will be determined based on several factors, including a candidate’s qualifications, skills, competencies, experience, expertise, education and location. In some cases, final compensation may fall outside the posted range. Salary ranges are regularly reviewed and may be adjusted in response to market trends.