Middle.NET/WPF Developer (Contract Position)

Developex is a custom software development company with over 20 years of experience, providing dedicated teams and full-range development services across mobile, web, desktop, and embedded systems from offices in Ukraine and Canada.

Developex

Employee count: 201-500

UA and US only

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Develop a Windows application using WPF and.NET, implement support for ARM64 architecture, integrate a driver developed by the US team, and develop firmware update flows for devices connected via USB.

Requirements

3+ years of commercial experience with C# /.NET (4.8 / 4.8.1)
Strong experience with WPF
Solid experience developing Windows desktop applications
Experience integrating with hardware devices (USB or similar)
English level B2+ for communication with the international team

Benefits

Competitive compensation commensurate with your experience and contribution
Flexible work schedule allowing a comfortable work-life balance
Opportunities for professional growth and development
Friendly and supportive team environment

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About the job

Apply before

May 11, 2026

Posted on

Mar 12, 2026

Job type

Contractor

Experience level

Mid-level

Location requirements

Ukraine

United States

Hiring timezones

Ukraine +/- 0 hours, and 1 other timezone

Job categories

Mid Level .NET Developer Mid Level Full Stack Engineer (.NET & React)Mid Level Full Stack Developer (.NET Angular)Mid Level Full Stack Software Contractor

Skills

C WPF ARM64 Firmware Update Flows .NET Windows

About Developex

Learn more about Developex and their company culture.

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We're a team of software development professionals based in Ukraine and Canada, with over 20 years of experience building relationships with companies around the world. Our main focus is forming software development teams for projects of any complexity, covering mobile, cloud, web, and desktop development with an emphasis on cross-platform support.

We've developed particular expertise in software for electronic devices, including firmware, drivers, and applications for gaming peripherals, audio equipment, wearables, and IoT products. We've worked on everything from consumer electronics to embedded systems, and we're comfortable tackling technical challenges across different platforms and industries.

Tech stack

Learn about the tools and technologies that Developex uses to build, market, and sell its products.

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Node.js

.NET

Python

Java

iOS

GraphQL

Selenium

Kubernetes

PostgreSQL

MongoDB

6 more

Developex employees can create an account to update this tech stack.

Employee benefits

Learn about the employee benefits and perks provided at Developex.

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English classes

Online language learning opportunities

Sick leave

Paid leave for illness and health needs

Paid vacation

Generous paid time off for rest and relaxation

Professional development

Paid training and seminars for continuous learning

View Developex's employee benefits

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Please let Developex know you found this job on Himalayas. This helps us grow!

Apply now