Sr. Engineer-Platform Engineering

Janus Henderson Investors•Denver, CO

38d•$100,000 - $115,000•Hybrid

About The Position

As a Senior Engineer in Platform Engineering, you will design, build, and optimize the foundational platforms that power our applications and services. You’ll work across infrastructure, automation, CI/CD, and developer tooling to enable scalable, secure, and high-performing environments. This role is critical to our Internal Developer Platform (IDP) strategy and improving developer experience.

Requirements

Bachelor’s or Master’s in Computer Science, Engineering, or related field
5+ years of experience in platform engineering, DevOps, or infrastructure roles
Strong experience with cloud platforms (Azure preferred, AWS/GCP acceptable)
Proficiency in containerization (Docker, Kubernetes)
Hands-on with CI/CD tools (GitHub, Azure DevOps, GitLab CI)
Experience with IaC tools (Terraform, Pulumi, Ansible)
Solid programming skills (Python, Go, or Java)
Strong understanding of networking, security, and system architecture

Nice To Haves

Certifications in cloud technologies or Kubernetes.
Experience building or contributing to an Internal Developer Platform (IDP)
Familiarity with service mesh, API gateways, and platform observability tools
Knowledge of FinOps, cost optimization, and cloud governance

Responsibilities

Platform Development: Architect and implement scalable platform components and services.
Infrastructure Automation: Build infrastructure-as-code (IaC) solutions using Terraform, Ansible, or similar tools.
CI/CD Enablement: Design and maintain CI/CD pipelines using GitHub Actions, Azure DevOps, or Jenkins.
Cloud Engineering: Manage and optimize cloud-native infrastructure (Azure, AWS, or GCP).
Observability & Reliability: Implement monitoring, logging, and alerting frameworks; contribute to SRE practices.
Security & Compliance: Ensure platform components meet security and regulatory standards.
Collaboration: Partner with software engineers, SREs, and DevEx teams to deliver seamless developer experiences.
Mentorship: Guide junior engineers and contribute to technical leadership within the team.

Benefits

Hybrid working and reasonable accommodations
Generous Holiday policies
Paid volunteer time to step away from your desk and into the community
Support to grow through professional development courses, tuition/qualification reimbursement and more
Maternal/paternal leave benefits and family services
Complimentary subscription to Headspace – the mindfulness app
Corporate membership to ClassPass and other health and well-being benefits
Unique employee events and programs including a 14er challenge
Complimentary beverages, snacks and all employee Happy Hours
Annual Bonus Opportunity: Position is eligible to receive an annual discretionary bonus award from the profit pool. The profit pool is funded based on Company profits. Individual bonuses are determined based on Company, department, team and individual performance.
Benefits: Janus Henderson is committed to offering a comprehensive total rewards package to eligible employees that includes; competitive compensation, pension/retirement plans, and various health, wellbeing and lifestyle benefits. To learn more about our offerings please visit the Why Join Us section on the career page here.