Sr. Platform Engineer I

NinjaTrader•Chicago, IL

1d•Hybrid

About The Position

We are seeking a Sr. Platform Engineer I to join our Platform Engineering team, focused on Developer Experience. In this role, you will design and build the tools, workflows, and golden paths that make engineers across the organization more productive. Your work will directly shape how teams build, test, ship, and operate software, removing friction, codifying best practices, and enabling self-service at scale. You will collaborate closely with product engineering, infrastructure engineering, and technical leadership to establish platform standards, create reusable service templates, and build internal tooling that accelerates delivery while maintaining quality and consistency across our web, mobile, desktop, and trading platforms.

Requirements

8+ years in platform engineering, DevOps, or developer tooling roles with a strong focus on developer experience
Deep experience building and maintaining CI/CD pipelines such as GitHub Actions, including release automation and deployment safety patterns
Strong expertise with Kubernetes, Docker, and container orchestration in the context of self-service abstractions
Proficiency in Python, Go, or Bash with experience building internal tools and automation
Hands-on experience with Infrastructure as Code tools such as Terraform and Helm
Experience with cloud platforms such as AWS, GCP, or Azure, including designing developer-facing abstractions
Strong collaboration, communication, and documentation skills with a focus on internal developer experience

Nice To Haves

Experience building or contributing to internal developer portals such as Backstage
Familiarity with platform engineering frameworks and a platform-as-a-product mindset
Trading or financial services industry experience
Contributions to open-source projects

Responsibilities

Define and maintain golden paths for service creation, including service templates, starter kits, and scaffolding tools that let teams go from zero to production-ready with minimal friction
Own developer onboarding workflows and maintain high-quality platform documentation
Establish and evolve CI/CD pipeline standards across the organization
Design release automation patterns, including rollout safety mechanisms such as canary deployments, progressive delivery, and automated rollbacks
Build and maintain internal platform portals, reusable infrastructure modules, and paved-road workflows
Enable product engineering teams to provision resources, configure environments, and ship features independently without reliance on other teams
Champion platform adoption through clear documentation, enablement sessions, and a consultative approach
Measure developer satisfaction and platform adoption metrics to continuously improve the experience
Partner with product engineering, infrastructure, and operations teams to ensure platform tooling meets cross-platform needs
Translate engineering pain points into scalable platform capabilities
Embed security and compliance requirements such as SOC2 and PCI-DSS into platform tooling and CI/CD pipelines