.NET Web UI Engineer / Architect

Multi-Bank Securities, Inc.; Southfield (MI); On-site; USD 100,000 - 130,000; Full time

Job summary

A financial services company is seeking an experienced Front-end Architect to lead the architectural roadmap for front-end technologies. You will oversee the modernization of legacy systems while maintaining service stability. Key responsibilities include defining engineering standards, improving performance on data-heavy workflows, and collaborating with backend teams to ensure effective integration with .NET services. Ideal candidates will have a Bachelor's in Computer Science and at least five years of front-end development experience, with strong skills in .NET integration and debugging.

Qualifications

• Minimum five years of experience in producing front-end features.
• Proven experience in modernizing legacy front ends without disruption.
• Excellent communication skills in verbal and written forms.

Responsibilities

• Own front-end architecture and align it with business priorities.
• Define standards for performance, security, and error handling.
• Implement improvements in performance on UX workflows.

Skills

Front-end architecture

.NET integration

Debugging

Modernization of legacy front ends

Education

Bachelor’s degree in Computer Science or related field

Tools

Azure DevOps

Git

CI/CD pipelines

Job description

We support mission-critical, data-heavy web applications on a primarily C# and .NET back end. You will be the hands‑on architect for a mixed front end that spans Angular, AngularJS, and jQuery. Your focus: keep today’s UI stable and fast while leading an incremental, low-risk migration to a modern, testable, observable front end that integrates cleanly with .NET services and middleware.

Responsibilities

• Own front-end architecture and a multi-year roadmap aligned to business priorities
• Define standards for state, events, data access, error handling, accessibility, security, and performance and drive adoption across teams
• Encapsulate legacy ES5 and jQuery modules and AngularJS code behind clean seams and introduce modern Angular and TypeScript where it adds clear value
• Improve performance and UX on table-centric workflows including search, filter, sort, paging, export, and near-real-time updates
• Establish pragmatic testing and observability per stack and reduce production defects and time-to-recover
• Partner with product and back-end engineering to sequence increments, de-risk changes, and ship reliably

Required Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or related field or equivalent practical experience.
• Five or more years building and shipping front-end features in production with measurable outcomes
• Proven success modernizing legacy front ends incrementally without business disruption
• Solid .NET integration skills including RESTful APIs, OpenAPI, authentication and authorization, caching, middleware, and CI/CD
• Excellent debugging across DOM, events, async flows, data grids, and performance along with clear written and verbal communication

Preferred Qualifications

• Azure DevOps, Git, CI/CD pipelines and experience with OctopusDeploy
• Experience with Blazor, SignalR, gRPC‑Web, Web Components, module federation, or micro-frontends
• Financial or trading UI experience and data-heavy screens
• Exposure to desktop UI stacks such as WinForms or WPF
• Experience with modern AI tools or agentic AI systems. Familiarity with integrating AI capabilities into applications, experimenting with autonomous or semi‑autonomous agents, or leveraging AI to enhance developer productivity is considered beneficial but not required.
• Front end: Angular, AngularJS 1.x, jQuery 1.9.x, jQuery UI 1.11.x, ES5 modules authored as CommonJS wrapped in IIFEs
• Back end: C# and .NET, ASP.NET and Web API, SQL Server
• Tooling: Webpack v3 on legacy bundles, Azure DevOps, Octopus Deploy, logging and metrics tuned per stack

How success will be measured

• Fewer front-end incidents and faster recovery on critical paths
• Performance and accessibility improvements on key screens
• Clearer module boundaries, reduced global coupling, and faster onboarding
• Delivery of modernization milestones with minimal disruption