C# / C++ Software Engineer

Juniper Poland Sp zoo; Województwo pomorskie; Hybrid; PLN 180,000 - 280,000; Full time

Job summary

Jeppesen ForeFlight is seeking an experienced C# / C++ developer for Windows and iOS to build and maintain the Windows EFB application and a cross-platform SDK. You will work on a middleware SDK/library used by client applications across Windows and iOS, contributing to content delivery and platform adapters.

The role focuses on Windows client development, UWP/XAML, and robust debugging across managed and native code, with collaboration across global teams in a hybrid Poland-based setting.

Qualifications

• Educational background in a relevant technical field such as software engineering or computer science.
• 5+ years of strong software development experience with C# and C++14 or newer.
• Experience with Windows client development and UWP/XAML; WPF is valuable.
• Experience with Visual Studio, MSBuild, NuGet and Windows SDK.
• Good understanding of asynchronous programming and multithreaded workflows.

Responsibilities

• Software development of the Windows EFB application.
• Maintenance and optimization of existing features.
• Working with C#, UWP/XAML and C++ components.
• Debugging issues across managed and native boundaries.
• Contributing to content delivery SDK/library code.

Skills

C#

C++

Windows development

UWP/XAML

Visual Studio

MSBuild

NuGet

Async programming

Testing

HTTP/REST

Security/certificates

Education

Bachelor's degree in a relevant field

Tools

WinRT/UWP tools

Windows SDK

C++ toolchains

Job description

Jeppesen ForeFlight builds industry-leading aviation software used by pilots, aircraft operators, and major airlines worldwide. As a high-growth, private equity-backed company, we are focused on scaling our operations, strengthening our financial infrastructure, and driving operational excellence across the business.

Would you like to build and maintain software used in Electronic Flight Bag products by pilots around the world? Do you want to work directly with pilots and airlines, supporting them in creating safe flights from beginning to end across the globe? Are you comfortable working on a Windows client application, lower-level content delivery SDK components, and occasionally touching iOS-related integrations? Do you care about stability, scalability, debugging difficult production issues, and making aviation software safer and more reliable? Then you might be the next person to join the ForeFlight / Jeppesen ForeFlight team.

We are seeking an experienced C# / C++ developer for Windows and iOS for our team in Poland who enjoys working in a diverse team of highly capable engineers

About the role:

As a C# / C++ developer at ForeFlight / Jeppesen ForeFlight, you will work mainly on a Windows EFB application, while also contributing to a middleware SDK/library used by client applications across platforms, including Windows and iOS.

Typical tasks and responsibilities include:

• Software development of the Windows EFB application
• Maintenance and optimization of existing features
• Working with C#, UWP/XAML and C++ components
• Debugging issues across managed and native code
• Contributing to content delivery SDK/library code
• Supporting platform adapter work for Windows, WinRT/UWP and iOS
• Working with HTTP/REST integrations, content download flows, certificates and authentication
• Improving error handling, retries, logging and diagnostics
• Collaborating with developers, test engineers and stakeholders across global teams
• Supporting automated tests, CI builds and release packaging
• Proactively working with test engineers to ensure product reliability and safety

Who are you?

In order to succeed in this role, you should be able to recognize yourself in at least some of the following:

• Educational background in a relevant technical field, e.g. software engineering, computer science, electronics and telecommunications, data science, or related discipline.
• 5+ years of strong software development experience with C# and C++14 or newer
• Communicative English and ability to collaborate with global stakeholders
• Experience with Windows client development
• Experience with UWP / XAML; WPF experience is also valuable
• Experience with Visual Studio, MSBuild, NuGet and Windows SDK
• Good understanding of asynchronous programming and multithreaded workflows
• Experience working with large existing codebases and legacy components
• Good debugging skills across C#, C++ and native/managed boundaries
• Experience with unit and integration testing
• Experience with HTTP/REST integrations, error handling, retries and logging
• Basic understanding of certificates, authentication flows and secure storage
• You try to understand the problem, not only implement the requested change
• A passion for aviation is a strong plus.

This position is on a hybrid schedule. This means you will be required to perform some work onsite at the company's Gdansk, Poland office. This is at the hiring team's discretion and could potentially change in the future.

Nice to have:

• Experience with C++/CX or C++/WinRT
• DirectX, OpenGL, Win2D or map/graphics rendering experience
• SQLite / local persistence
• SDK/library development experience
• OpenSSL or crypto/certificate-related experience
• Experience with iOS SDK integrations or cross-platform SDK adapters
• Experience in open source or multi-repo development

Important information regarding this requisition: This requisition is for a locally hired position in Poland. Candidates must have current legal authorization to live and work in POLAND. Benefits and pay are determined at the local level.

Relocation: This position does not offer relocation. Candidates must live in the immediate area or relocate at their own expense.