At a Glance
- Tasks: Lead the design and evolution of our Internal Developer Platform for secure software delivery.
- Company: Join a forward-thinking investment firm with a focus on innovation and collaboration.
- Benefits: Enjoy hybrid working, generous holidays, health benefits, and professional development support.
- Other info: Great opportunities for career growth and cross-functional collaboration.
- Why this job: Make a real impact in platform engineering while mentoring the next generation of engineers.
- Qualifications: 6+ years in platform engineering with strong cloud and DevOps experience required.
The predicted salary is between 60000 - 80000 £ per year.
Your opportunity As a Senior Engineer within Platform Engineering, you will lead the design, build, and evolution of our Internal Developer Platform (IDP), enabling consistent, secure, and scalable software delivery across the enterprise. This role combines DevOps engineering, platform architecture, and developer experience enablement, with a strong focus on CI/CD transformation (Azure DevOps to GitHub), platform tooling, and data platform integration (Snowflake, Databricks).
You will act as a subject‑matter expert (SME) across DevOps tooling, automation, and platform reliability—driving best practices, standardisation, and self‑service capabilities for engineering teams.
- Design, build, and evolve enterprise platform services to support the Internal Developer Platform (IDP) and enable scalable, secure, and self‑service engineering environments.
- Lead DevOps transformation initiatives, including migration from Azure DevOps to GitHub, and implement standardised CI/CD pipelines, reusable workflows, and release automation frameworks.
- Develop and maintain Infrastructure‑as‑Code (IaC) solutions using Terraform, Bicep, or similar tools to provision and manage cloud infrastructure.
- Deliver and optimise cloud‑native platforms on Azure, ensuring scalability, resilience, and cost efficiency.
- Act as SME across DevOps tooling, including GitHub (Actions, Advanced Security), Nexus (artifact management), and Veracode (application security), embedding security controls into pipelines and platform services.
- Enable and support DevOps practices for core data platforms, including Snowflake and Databricks, covering environment provisioning, CI/CD integration, and access control models.
- Implement observability frameworks, including monitoring, logging, and alerting, and contribute to SRE practices such as SLIs/SLOs, reliability engineering, and incident management.
- Embed security and compliance standards into all platform components, ensuring auditability, policy enforcement, and alignment with enterprise governance requirements.
- Drive developer experience improvements through platform standardisation, self‑service tooling, templates, and AI‑enabled capabilities (e.g., Copilot, intelligent automation).
- Collaborate with Architecture, Cloud COE, SRE, and engineering teams to deliver consistent and governed platform capabilities across the organisation.
- Mentor junior engineers and contribute to technical leadership, standards definition, and engineering best practices.
What to expect Hybrid working and reasonable accommodations Generous holiday policies Excellent health and wellbeing benefits, including corporate membership to Wellhub Paid volunteer time to step away from your desk and into the community Professional development support, tuition/qualification reimbursement, and more Maternal/paternal leave benefits and family services All employee events, networking opportunities, and social activities Lunch allowance for use within our subsidised onsite canteen
Must have skills
- Bachelor’s or master’s in computer science, engineering, or related field
- 6+ years of experience in platform engineering, DevOps, or infrastructure roles
- Strong experience with cloud platforms (Azure preferred)
- Proficiency in containerisation (Docker, Kubernetes)
- Hands‑on with CI/CD tools (GitHub, Azure DevOps, GitLab CI)
- Experience with IaC tools (Terraform, Pulumi, Ansible)
- Deep hands‑on experience with Infrastructure‑as‑Code (Terraform, Bicep or equivalent) and automated cloud provisioning
- Strong knowledge of Azure cloud platform, including compute, networking, identity, and security services
- Experience implementing DevSecOps practices, including integration of SAST/DAST tools (e.g., Veracode), secrets management, and secure pipeline execution
- Expertise in artifact management (e.g., Nexus) and modern DevOps tooling ecosystems
- Experience enabling Internal Developer Platform (IDP) capabilities, including self‑service provisioning, reusable templates, and platform standardisation
- Solid understanding of software development lifecycle (SDLC), release engineering, and environment lifecycle management
- Experience working with data platforms (Snowflake and/or Databricks), including CI/CD integration, environment provisioning, and access control models
- Strong knowledge of containerisation and cloud‑native technologies (Docker, Kubernetes)
- Experience with observability and monitoring frameworks (e.g., Azure Monitor, Prometheus, Grafana) and understanding of SRE practices (SLIs/SLOs, reliability engineering)
- Strong scripting/programming skills (Python, PowerShell, Bash) and automation mindset
- Good understanding of security, networking, RBAC, and Zero Trust principles in cloud and DevOps environments
- Exposure to AI‑enabled developer tooling (e.g., GitHub Copilot, intelligent automation) and improving developer experience
- Experience operating in regulated, enterprise‑scale environments with strong focus on governance, auditability, and compliance
- Strong communication, collaboration, and stakeholder management skills, with ability to act as a hands‑on SME and technical leader
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 optimisation, and cloud governance
- Solid programming skills (Python, Go, or Java)
- Strong understanding of networking, security, and system architecture
- Exposure to AI‑enabled development (e.g., GitHub Copilot, automation workflows)
- Relevant cloud or Kubernetes certifications
Potential for growth Mentoring Leadership development programs Regular training Career development services Continuing education courses Cross‑functional collaboration
Regulatory & compliance requirements You will be expected to understand the regulatory obligations of the firm and abide by regulated entity requirements and JHI policies applicable to your role. You must also adhere to our Investment Advisory Code of Ethics related to personal securities activities and disclosure and certification requirements, including past political contributions and political activities that may impact eligibility for this position.
Annual Bonus Opportunity Annual Bonus Opportunity: Position may be 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.
Equal Opportunity Employer Janus Henderson Investors is an equal opportunity 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. All applications are subject to background checks.
Senior Engineer- Platform Engineering employer: Janus Henderson Investors
At Janus Henderson Investors, we pride ourselves on fostering a dynamic and inclusive work environment that prioritises employee well-being and professional growth. As a Senior Engineer in Platform Engineering, you will benefit from generous holiday policies, excellent health and wellbeing benefits, and opportunities for continuous learning and development, all while working in a hybrid model that promotes work-life balance. Our commitment to community engagement through paid volunteer time and a vibrant culture of networking and social activities makes us an exceptional employer for those seeking meaningful and rewarding careers.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Engineer- Platform Engineering
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Janus Henderson Investors or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Janus Henderson Investors.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Janus Henderson Investors.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Janus Henderson Investors that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Senior Engineer- Platform Engineering
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Janus Henderson Investors.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Janus Henderson Investors and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Janus Henderson Investors
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Janus Henderson Investors uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
