Senior/Staff Platform Engineer
Horizon3 · Remote · US, Remote ·
COMPENSATION
€•• – ••k
Listed on the employer's job board (Ashby)
- Senior/Staff level
- Fully remote (US)
- AWS + Kubernetes
- Go + Python
- Equity package
Join the Internal Platform Team at Horizon3 to build secure, reliable, and scalable infrastructure for the NodeZero autonomous pentesting platform. You will lead complex technical initiatives, establish engineering standards, and create self-service capabilities that empower feature teams to deliver faster.
This hands-on leadership position focuses on solving ambiguous problems and reducing technical debt across AWS and Kubernetes environments. You will collaborate with engineering, product, and security teams to ensure platform operability and drive technical excellence.
What you'll do
- Lead design and evolution of AWS, Kubernetes/EKS, and shared platform services
- Define architecture for infrastructure automation and ephemeral environments
- Build reusable platform capabilities and self-service developer workflows
- Evolve infrastructure-as-code using Terraform and Crossplane
- Improve platform reliability, observability, security, and performance
- Participate in on-call rotation and lead post-incident improvements
- Mentor engineers and raise the technical bar across Engineering
- Partner with feature teams to turn platform needs into durable solutions
What you'll need
- 8+ years in platform engineering, SRE, DevOps, or software engineering
- Deep experience designing and operating cloud platforms, preferably AWS
- Strong Kubernetes experience including production operations and networking
- Proficiency in infrastructure-as-code with Terraform or Crossplane
- Experience operating CI/CD and delivery infrastructure
- Strong understanding of IAM, secrets, networking, and least privilege
- Proficiency in Go and Python for automation and platform services
- Demonstrated success leading complex initiatives across multiple teams
Nice to have
- Multi-region or multi-environment SaaS platform experience
- Experience with internal developer platforms or PaaS
- Familiarity with GitLab CI/CD, OpenTelemetry, or Datadog
- Background in security-sensitive or regulated industries
- Experience in startup or high-growth company environments
Stack
- AWS
- Kubernetes
- EKS
- Terraform
- Crossplane
- GitLab
- OpenTelemetry
- Datadog
- Go
- Python
How you'll work
- Remote-first with optional hybrid work in Chicago
- Occasional travel for onsite meetings and collaboration
- On-call participation required for incident response
What you get
- Competitive base salary and equity package
- Health, vision, and dental insurance for family
- Flexible vacation policy
- Generous parental leave
- Inclusive culture with growth opportunities