.NET WinForms Developer

CSHARK; Remote; PLN 120,000 - 160,000; Full time

Job summary

A dynamic technology firm in Wrocław is seeking an experienced .NET WinForms Developer to join their team. You will develop and optimize high-performance trading applications, requiring strong skills in C# and .NET, particularly Windows Forms. This position allows for remote work, international project engagement, and opportunities for professional growth in a supportive environment.

Benefits

Flexible working hours

Participation in charity actions

In-house technology workshops

Qualifications

• 5+ years of experience in C#/.NET (preferably .NET 8).
• Strong expertise in Windows Forms and UI customization.
• Solid understanding of asynchronous, multi-threaded, and event-driven programming.
• Experience with custom control development (charts, grids, real-time visualization).
• Prior exposure to trading systems or market data environments.

Responsibilities

• Develop, maintain, and enhance custom Windows Forms controls for real-time trading applications.
• Implement UI features that handle large, fast-changing datasets with minimal latency.
• Collaborate with traders and backend developers to translate business requirements into performant desktop solutions.
• Profile, debug, and optimize code for responsiveness and performance.

Skills

C#

.NET

Windows Forms

UI customization

asynchronous programming

event-driven programming

TCP/socket communication

English (B2+)

Polish (B2+)

collaboration skills

Job description

We are looking for an experienced .NET WinForms Developer to join the frontend team and help design, develop, and optimize high-performance trading applications.

C#

.Net

Your Daily Missions

• Develop, maintain, and enhance custom Windows Forms controls for real-time trading applications.
• Implement UI features that handle large, fast‑changing datasets with minimal latency.
• Collaborate with traders and backend developers to translate business requirements into performant desktop solutions.
• Work with C++ backend systems over TCP/IP and ensure robust, low‑latency communication.
• Profile, debug, and optimize code for responsiveness and performance.
• Contribute to continuous improvement of codebase, tooling, and processes.

The Essentials We’re Seeking

• 5+ years of experience in C#/.NET (preferably .NET 8).
• Strong expertise in Windows Forms and UI customization.
• Solid understanding of asynchronous, multi‑threaded, and event‑driven programming.
• Experience with custom control development (charts, grids, real‑time visualization).
• Familiarity with TCP/socket communication and debugging live systems.
• Ability to read and understand complex C++ or protocol integration logic.
• Strong collaboration skills and attention to detail.
• Fluency in English and Polish (minimum B2+) – amust.
• Prior exposure to trading systems or market data environments.
• Understanding of performance‑sensitive visualization, or C++ interoperability.

AtCSHARK, it’s not about trendy perks or the latest gaming console in the lounge. Based on feedback from our team, what truly counts is an environment conducive to focused work, structured processes, and continuous skill development. We prioritize what genuinely enriches the daily work experience, ensuring that every moment spent with us is both productive and fulfilling.

Harness the power of technology with our remote‑first approach. Work from the comfort of your space while staying connected and collaborative.

Flexible hours

Find your rhythm with hours that align to your lifestyle. We understand that productivity isn’t confined to the typical 9‑to‑5.

International projects

Engage in projects that transcend borders. Experience the thrill of working with diverse teams and clients from different parts of the world. Navigate the global tech landscape with ease. Enhance your communication skills with our tailored Business English sessions.

Participation in charity actions

Connect with the community and contribute to causes that matter. Join us in various charity initiatives and be a part of change that extends beyond business.

In‑house technology workshops

Stay at the forefront of technology. Dive deep into topics, refine your skills, and learn from peers through our regular tech workshops.

Explore the Heartbeat of CSHARK

Discover the essence of our guilds’ expertise, advanced tools and tech stack, and our real‑world successes. Delve into impactful case studies and hear genuine insights from our team.

Wondering about our organizational vision, the executive leadership team, the values we passionately uphold?

Explore our diverse portfolio to witness a blend of pioneering financial & regulatory solutions, next‑gen manufacturing, and innovation examples.