Sr. Engineer-Platform Engineering

Why work for us?

A career at Janus Henderson is more than a job, it's about investing in a brighter future together.

Our Mission at Janus Henderson is to help clients define and achieve superior financial outcomes through differentiated insights, disciplined investments, and world-class service. We will do this by protecting and growing our core business, amplifying our strengths and diversifying where we have the right.

Our Values are key to driving our success, and are at the heart of everything we do:

Clients Come First - Always | Execution Supersedes Intention | Together We Win | Diversity Improves Results | Truth Builds Trust

If our mission, values, and purpose align with your own, we would love to hear from you!

Your opportunity

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.

• 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 Google Cloud Platform).
• 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.

What to expect when you join our firm

• 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

Must have skills

• 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/Google Cloud Platform 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 have skills

• 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

Supervisory responsibilities

• No

Potential for growth

• Mentoring
• Leadership development programs
• Regular training
• Career development services
• Continuing education courses
• Cross functional collaboration

Compensation information

The base salary range for this position is $100,000-$115,000. This range is estimated for this role. Actual pay may be different. This position will be open through this role will remain open until February 28 2026.

Colorado law requires an estimated closing date for job postings. Please don't be discouraged from applying if you see this date has passed.

At Janus Henderson Investors we're committed to an inclusive and supportive environment. We believe diversity improves results and we welcome applications from candidates from all backgrounds. Don't worry if you don't think you tick every box, we still want to hear from you! We understand everyone has different commitments and while we can't accommodate every flexible working request, we're happy to be asked about work flexibility and our hybrid working environment. If you need any reasonable accommodations during our recruitment process, please get in touch and let us know at

#LI-LN2 #LI-Hybrid

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.

Janus Henderson Investors is an equal opportunity / Affirmative Action employer . All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status.

Janus Henderson (including its subsidiaries) will not maintain existing or sponsor new industry registrations or licenses where not supported by an employee's job functions (as determined by Janus Henderson at its sole discretion).

You should be willing to adhere to the provisions of our Investment Advisory Code of Ethics related to personal securities activities and other disclosure and certification requirements, including past political contributions and political activities. Applicants' past political contributions or activity may impact applicants' eligibility for this position.

You will be expected to understand the regulatory obligations of the firm, and abide by the regulated entity requirements and JHI policies applicable for your role.