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Senior Software Developer

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Summary

6-month contract (extendable) building large-scale iOS/Android apps with Flutter/Dart plus a C#/ASP.NET MVC (.NET Framework 4.8) backend for a Canadian SaaS company in landing pages, conversion optimization, and CRM — including CI/CD, monitoring, and on-call. 100% remote on Pacific Time hours; Colombia/Panama candidates prioritized.

Company Overview:
- We are looking for a Senior Software Developer to join a leading Canadian SaaS company specializing in landing pages, conversion optimization, and CRM solutions.
- The company is currently undergoing an exciting AI-first product transformation.

Position Details:
- Location: 100% Remote (Must be available to work during Pacific Time business hours).
- Priority will be given to candidates located in Colombia and Panama.
- Contract: 6 months with potential extension.
- Start Date: ASAP.

Technical Responsibilities:
- Flutter and Dart for iOS and Android applications.
- C# and ASP.NET MVC (.NET Framework 4.8) backend development.
- Mobile performance optimization, secure storage, and API integrations.
- CI/CD pipelines, monitoring, and production support.
- Large-scale mobile applications serving hundreds of thousands of users.

Candidate Requirements:
- 4+ years of professional software development experience.
- 3+ years of hands-on Flutter and Dart experience in production environments.
- 3+ years of experience with C# and ASP.NET MVC.
- Released applications to both the App Store and Google Play.
- Experience with production monitoring, incident response, and on-call rotations.
- Mentoring and supporting other developers.

Nice to Have:
- AWS (Lambda, S3, DynamoDB, Kinesis).
- TeamCity, Octopus, PagerDuty, and Datadog.
- Experience with CRM or B2B SaaS products.
- Experience modernizing legacy .NET applications.

Application Details:
- Passionate about building high-quality mobile experiences, owning features end-to-end, and working in a collaborative, fast-paced engineering environment.

Location: Remote - Colombia, Panama

Skills required for this job:

  • .NET
  • ASP.NET MVC
  • AWS
  • B2B SaaS
  • C#
  • Customer relationship management (CRM)
  • Dart
  • Flutter
  • Incident response
  • Software development

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