Senior Software Engineer, Desktop

October 31, 2026

Hybrid

Senior

Warsaw, Poland

Also worth knowing

Mandatory office attendance
3 days per week
Includes on-call duty
English is required

Description

The employer is a leader in Intelligent Content Management and is hiring a senior engineer for its Desktop Applications team. The role covers building and evolving desktop products used by millions of users on Windows and macOS, spanning virtual file systems, sync, networking, and UI. The position combines hands-on feature delivery, architecture leadership, code reviews, and on-call participation in a hybrid Warsaw office.

Responsibilities

Design, develop, and ship high-quality features for desktop applications on Windows and macOS, ensuring they are performant, user-friendly, and secure
Work across the full desktop stack, including virtual file systems, data persistence, OS integrations, network and sync layers, and UI, to solve complex technical challenges at scale
Contribute to cross-platform development using React Native, bridging front-end and native desktop experiences
Collaborate daily with Product Managers, QA engineers, and designers to translate requirements into robust, well-tested software
Lead and participate in design discussions, architecture reviews, and code reviews to uphold engineering quality
Diagnose and resolve complex performance, reliability, and compatibility issues affecting millions of end users
Attend and engage in weekly stand-ups, team meetings, and manager one-on-ones
Work collaboratively with other engineers, team members, and across teams
Play a role in developing and fostering company culture in the Warsaw office and represent the Poland organization internally and externally
Participate in the on-call rotation, available while on-call to respond to and triage any issues that arise

Requirements

5+ years of professional desktop software development experience
Proficient in C++, C#, and/or Swift with strong command of software design and architecture principles
Demonstrated experience building and shipping desktop applications on Windows and/or macOS
Comfortable working across the full desktop stack: virtual file systems, OS integrations, networking, sync, and UI
Experienced with unit testing and functional testing practices in an agile team environment
Passionate about building software that is user-friendly, performant, and secure
Strong problem-solving skills with ability to diagnose and resolve complex technical issues
Able to assess, communicate, and complete project milestones with manager and team members in a time-sensitive manner
Must speak English proficiently
Experience with Windows systems-level programming: Win32 APIs, multi-threading, IPC, COM
Cross-platform development experience across both macOS and Windows
Prior experience using AI coding tools such as GitHub Copilot and Cursor in daily workflow

Conditions

Hybrid schedule requiring a minimum of 3 days per week from the assigned office
On-call rotation with availability to respond to issues while on-call
Typical time allocation: 60% coding, code reviews, and testing, 15% design and architecture, 15% bug fixes
5% documentation and 5% meetings in a typical work week
Full-time employment