Mobile app developers, Xamarin.forms, C#

C#, mobile app dev, Xamarin, or Xamarin.Forms (iOS, Android, UWP), Agile or TDD, PREFER: Reactive UI, Reactive Extensions, past with Windows Presentation Foundation ( WPF )
Contract W2, 3-4+ years
55-75 / hour
Travel not required

Job Description

We have been retained by our client in Dallas, Texas to deliver three (3) Mobile app Developers to work 100% remote on a long-term, 3-4+ year contract basis as part of a large software engineering team creating a complex, cutting-edge, Xamarin.Forms application. You will enjoy working with Agile methodologies, scrum, TDD, and the scaled agile framework, while working as a team, and independently solving the complex software problems associated the long list of complex features of this mobile app used by this large corporation. You will enjoy the OOP, OOD, C# capabilities and the personalities of this articulate, well-spoken and strong C# .NET software engineering team you will join, and communicate with during your weekday agile/scrum meetings.

Here is what you will be given and the tech stack and methodologies you will use:

A high performance windows machine with a recent or newest version Visual Studio (eventually MAUI : Multi-Platform App UI), a Mac machine, C#, Xamarin.Forms, XAML, MVVM, SQLite, Reactive Extensions, Resharper, C#, NUNIT, TDD, Agile, Scrum, Azure DevOps, Xamarin Test Cloud, Visual Studio App Center, This is a 40 hour work week.

  • Deliver code to implement the requirements, as defined for the sprint

  • Leverage Model View View Model (MVVM) and reactive principles (Reactive Extensions, React UI) where appropriate

  • Work with Automated Test & UI developers to ensure high-quality, tested, working features

  • Use HTTP knowledge, Fiddler traces

  • Take UI & automated test tasks, as needed

  • Learn, adhere to, and enforce & best practices

  • Deliver the highest quality designs & code for the project

  • Participate in Agile, scaled agile framework (SAFe) team ceremonies (daily stand-up, planning sessions, etc.)

  • Provide estimates for tasks

  • Provide progress updates to team while working tasks

  • Research and troubleshooting issues in QA and production

  • Implement all ReSharper feedback that is Warning level and above. There are a few case-by-case exceptions to this; the Architect will provide guidance.

  • Adhere to SOLID principles

  • Adhere to Microsoft s API Design Guidelines

  • Adhere to the Command Query Separation principle

  • Leverage the principles of Design by Contract

  • Leverage the Clean Architectural style for layering, decomposition, and dependency validation

  • Leverage Dependency Injection to decouple components

  • Leverage Domain Driven Design principles and patterns where appropriate

  • Provide complete software comments for public interfaces, classes, structs, enums, and methods including: abstraction descriptions, exceptions thrown, and verbiage augmenting codified Design by Contract specifications.

  • Eliminate duplicate code

  • Code and design should be decoupled, modular, composable to facilitate extraction of any potentially reusable code as a mature common component.

  • All forms of serialized data should be versioned to help ensure a smooth migration path as the software matures and evolves.

  • Classes should be organized within the project as vertical slices of functionality instead horizontal abstraction types

  • Good usage of Reactive Extensions or use of programming principles design.

  • Adhere to the Composed Method style of functional decomposition where possible., or use of compositional models (composite models) versus inheritance.

  • Leverage reactive data streams to explicitly model changing data.

  • Leverage Event Sourcing model to preserve separation between remotely-source data and device-sourced data throughout data synchronization.

  • Leverage State Machines to govern progression of subsystems/objects/workflows through allowed states via declared triggers.

  • Embrace Continuous Integration / Continuous Delivery using Azure DevOps including robust automated continuous integration and continuous build pipelines that automatically execute static code analyzers, design analyzers, unit tests, and integration tests.


We prefer candidates with 4-5+ years software engineering with C#, Xamarin or Xamarin.Forms experience, and a bachelors degree in Computer Science, or related. Candidates must reside in the USA.

Excellent verbal and written communication is required.

We prefer candidates with strengths in C# software engineering with mobile app experience, Xamarin, or Xamarin.Forms, and mobile app (iOS, Android, UWP), experience, a past history with the Windows Presentation Foundation ( WPF ) of classes, Reactive Extensions, Reactive UI, reactive programming principles, data streams, message streams, observables, and an basic understanding of the composite reuse principal (compositional models vs. inheritance).

Employment Type: Contract (long term, 3-4+ years)

Hourly Rate: $55 75 per hour (depends upon experience)

Benefits: health, dental, health savings account (HSA)


100% remote , candidate must reside in the USA.

We prefer candidates in Dallas, TX, Fort Worth Texas.

We prefer candidates in Texas.

Immigration: s and those authorized to work in the US are encouraged to apply. We are unable to sponsor H1b candidates at this time. s & US Permanent Residents needed.

No Consulting Firms. No third parties. No employment agencies. No recruiters. Principals Only.

Please apply here with resume (MS Word format preferred), or on the Job Posting page:

Please call or send a text with your name to 817-424-1411 to inquire about this position or your resume submission/application.

Posted By

Larry Bergstrom

Dice Id : 10117243
Position Id : 449
Originally Posted : 2 months ago
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