Intermediate Full Stack Developer

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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!

You will help shape the next generation of our portfolio construction platform, building modern Angular web experiences supported by a robust ASP.NET Core (.NET 10) backend. You will work across the full stack, from cloud-hosted APIs to responsive user interfaces, in a collaborative Agile environment.

• Develop and maintain Angular front-end features supported by ASP.NET Core Web APIs.
• Design REST endpoints, background jobs, caching solutions and real-time features.
• Write and optimize data access for SQL Server using EF Core and Dapper.
• Contribute to CI/CD pipelines and support cloud deployments on Microsoft Azure.
• Use AI-assisted development tools while maintaining quality, security and sound engineering practices.
• Write tests, review code and work directly with stakeholders to understand and deliver requirements.
• Collaborate on new feature development and help migrate existing desktop functionality to the web.
• Carry out other duties as assigned.

• Hybrid working and reasonable accommodations
• Excellent Health and Wellbeing benefits including corporate membership to Wellhub
• 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
• Unique employee events and programs including a 14er challenge
• Complimentary beverages, snacks and all employee Happy Hours

• 3-5 years of experience building web applications with C#/.NET and a modern single-page application framework, preferably Angular.
• Strong Type Script, HTML and CSS/SCSS skills.
• Solid understanding of REST APIs, authentication and asynchronous programming patterns.
• Strong SQL scripting skills, including experience with SQL Server and object-relational mapping tools such as EF Core and/or Dapper.
• Familiarity with Microsoft Azure cloud services and CI/CD practices.
• Proficiency with Git and willingness to adopt AI-assisted development tools in daily work.
• Clear communication skills and the ability to work effectively with technical and non-technical stakeholders.
• Strong problem-solving, sound judgement, collaboration and ownership from design through deployment.

• Experience using Visual Studio.
• Experience with Elastic Search, including search indexing or relevance tuning.
• WPF and MVVM experience supporting an existing desktop client during a web transition.
• Experience with .NET MAUI or mobile application development.
• Experience with Astronomer or similar data and workflow orchestration platforms.
• Experience with Snowflake, Databricks, Redis or Application Insights.
• Experience using Python.

• No

• Regular training
• Continuing education courses

The base salary range for this position is $120,000 to $127,000. This range is estimated for this role. Actual pay may be different. This position will be open through October 31,…