Senior Desktop Engineer

Sur Global; Polska; Remote; PLN 180,000 - 240,000; Full time

Job summary

A technology company in Poland is seeking a Senior Desktop Engineer to design and build desktop applications for macOS and Windows. The role requires collaboration with product, QA, and support teams, along with a strong focus on performance and security. Ideal candidates will have 4+ years of macOS experience and 3+ years in Windows application development. The position offers a flexible schedule and unlimited paid time off.

Benefits

Unlimited Paid Time Off

Flexible Schedule

100% Remote

Qualifications

• 4+ years of macOS development experience using Swift, Objective-C, Xamarin.Mac, or MAUI.
• 3+ years of Windows application development using .NET, .NET Framework, WPF, or WinForms.
• Strong knowledge of UI frameworks like React or Angular.

Responsibilities

• Develop and maintain desktop applications for macOS and Windows.
• Implement, debug, and optimize system-level code and UI features.
• Write and maintain clear technical documentation.

Skills

Fluent English

macOS development experience

Windows application development

UI frameworks knowledge

Debugging complex architectures

Secure coding principles

Tools

Swift

Objective-C

C#

.NET

WPF

C++

Job description

As a Senior Desktop Engineer you will design, build, and maintain desktop applications for macOS and Windows environments. This role involves working across both system and application layers to deliver secure, high-performance experiences. You'll collaborate closely with product, QA, and support teams to ensure that all applications are stable, efficient, and well-documented.

Key Responsibilities

• Develop and maintain desktop applications for macOS and Windows, including integrations and embedded web components
• Implement, debug, and optimize system-level code and UI features using Swift, Objective-C, and C# (with occasional C++)
• Build and maintain macOS components including system extensions, XPC, Endpoint Security, and Network Extensions
• Develop Windows functionality using Win32 APIs, WPF, and modern .NET frameworks
• Collaborate with cross‑functional teams to deliver secure, testable, and production‑ready features
• Write and maintain clear technical documentation and architectural designs
• Stay current with updates in macOS, Windows, and related ecosystems, especially in areas related to security and performance

Requirements

• Fluent English is required
• 4+ years of macOS development experience using Swift, Objective-C, Xamarin.Mac, or MAUI
• Proven experience delivering complex macOS features to production
• 3+ years of Windows application development using .NET, .NET Framework, WPF, or WinForms
• Strong knowledge of UI frameworks such as React or Angular for hybrid desktop applications
• Experience debugging complex macOS architectures (system extensions, launch services, IPC)
• Familiarity with systems programming concepts, multithreading, and Win32 APIs (C++ experience is a plus)
• Understanding of secure coding principles and best practices for maintainable, testable code

Benefits

• Salary Range: $6000–$7500 USD /month
• Paid Time Off: Unlimited
• Schedule: Flexible, 100% Remote