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Senior Front-End Developer (Contract)

Concurrency

Salary not specified
Sep 17, 2025
Brookfield, WI, US
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Concurrency is looking to hire a Senior Software Engineer with a front-end specialization to modernize a customer's user interface using Blazor WebAssembly (WASM), addressing multi-user personas and secure navigation needs.

Requirements

  • Proven experience designing and building modern front-end applications using Blazor WASM
  • Experience with C, HTML, CSS, JavaScript, React, Angular (v17+), and React Native/.NET MAUI
  • Professional experience in Azure such as Azure Functions, Azure DevOps, Azure AI Foundry, and Azure OpenAI
  • Exposure to cloud-native architecture and microservices
  • Understanding of all phases of the software development lifecycle
  • CI/CD pipeline experience, containerization (Docker/Kubernetes), and infrastructure-as-code (Terraform, Bicep)
  • Experience contributing to design systems, style guides, and UI documentation

Responsibilities

  • Design and implement responsive UI components using Blazor WASM, HTML, CSS, and C
  • Translate user personas and workflows into intuitive, accessible interfaces
  • Collaborate with UX architects to evolve low- and high-fidelity wireframes into production-ready screens
  • Optimize UI performance across corporate, credit union, and business user contexts
  • Implement secure flows and role-based access aligned with the customer’s Active Directory and routing logic
  • Integrate micro front-end architecture where applicable to support modular UI delivery
  • Participate in the planning, design, and development of new solutions as well as in enhancements, modifications, and corrections to existing solutions

Other

  • Work closely with both internal and customer teams to gather requirements and make suggestions for modern custom solutions
  • Submit daily hours billed to cloud-based project management software, Kantata, for time tracking
  • Research and consider emerging technologies to improve current applications, architectures and processes
  • Document design decisions and contribute to the evolving style guide and design system
  • Stay current on Microsoft ecosystem tools and contribute to UI innovation using AI-assisted development tools