Technical Lead (.NET WinForms)
- Remote
- Wrocław
- Bielsko-Biała
- Lead 150 - 190 PLN/h + VAT B2B
Unfolding Your Next Role
Our client is a top-tier proprietary trading firm building its own trading technology end-to-end. Their engineering teams develop high-performance Windows desktop applications relied upon by professional traders every day.
As a Tech Lead, you will combine hands-on coding with architectural ownership to guide the evolution of real-time trading UIs. This role focuses on performance, responsiveness, and user experience at scale.
Tech & Tool Stack
C#
.Net
Your Daily Missions
- Lead the architecture and development of real-time WinForms applications.
- Design and build custom-rendered controls for high-frequency, data-driven UI.
- Ensure ultra-responsive UI updates in a multi-threaded environment.
- Profile, debug, and optimize UI performance (latency, GC pressure, redraw behavior).
- Work closely with traders and C++ backend teams to deliver reliable, low-latency features.
- Mentor engineers through reviews, design sessions, and technical coaching.
- Work with source control and support transition plans (e.g., SVN to Git).
The Essentials We’re Seeking
- 8+ years of professional experience in C#/.NET with strong focus on Windows Forms.
- Proven ability to build custom UI controls from scratch (inheriting base controls and implementing custom rendering, not configuring DevExpress/Telerik).
- Hands-on experience with continuous real-time data streaming to the UI (data pushed, not polled or periodically refreshed).
- Deep understanding of multi-threaded UI architecture (safe UI updates from worker threads, no freezes or stalled redraw).
- Demonstrated skill in UI performance tuning (batching updates, reducing paint cost, minimizing flicker, lowering GC pressure).
- Experience working with TCP / socket communication and interacting with C++ backend systems.
- Ability to explain design decisions clearly and articulate the impact on end-user experience.
- Strong communication skills and experience mentoring or leading developers.
- Fluency in English (minimum C1) to collaborate effectively with stakeholders.
Nice-to-haves
- Experience with trading systems or real-time market data environments.
- Familiarity with C++ interop or mixed managed/unmanaged architectures.
- Comfort working with Figma or similar UI collaboration tools.
Our
Benefits
At CSHARK, 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.
100% remote work
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.
Business english lessons
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.
100% remote work
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.
Business english lessons
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.
Recruitment process
Chat with Our Recruiter
Kick off your CSHARK adventure with an initial interview. This is a great opportunity for us to get to know each other better and for you to ask any preliminary questions.
Show Your skills
Depending on the role, you’ll either engage in a technical interview or take on a specific task. This stage allows us to understand your expertise and offers you a glimpse into the challenges you might tackle at CSHARK
Meet the Team
This is where the magic happens. Engage with a potential supervisor, your future team, or even a client. It’s a deep dive into your prospective role and a chance to grasp the collaborative spirit of CSHARK.
Crafting Your Offer
Once we recognize the mutual fit, we’ll discuss the specifics of your offer. We believe in crafting a package that respects your skills, experience, and aspirations.
Onboarding Preparation
Once you’re set to join us, our team crafts a tailored onboarding plan. This includes setting up your tools and accounts, scheduling introductions to key team members, and organizing orientation sessions to make your integration seamless and efficient.
Chat with Our Recruiter
Kick off your CSHARK adventure with an initial interview. This is a great opportunity for us to get to know each other better and for you to ask any preliminary questions.
Show Your skills
Depending on the role, you’ll either engage in a technical interview or take on a specific task. This stage allows us to understand your expertise and offers you a glimpse into the challenges you might tackle at CSHARK
Meet the Team
This is where the magic happens. Engage with a potential supervisor, your future team, or even a client. It’s a deep dive into your prospective role and a chance to grasp the collaborative spirit of CSHARK.
Crafting Your Offer
Once we recognize the mutual fit, we’ll discuss the specifics of your offer. We believe in crafting a package that respects your skills, experience, and aspirations.
Onboarding Preparation
Once you’re set to join us, our team crafts a tailored onboarding plan. This includes setting up your tools and accounts, scheduling introductions to key team members, and organizing orientation sessions to make your integration seamless and efficient.
Chat with Our Recruiter
Kick off your CSHARK adventure with an initial interview. This is a great opportunity for us to get to know each other better and for you to ask any preliminary questions.
Show Your skills
Depending on the role, you’ll either engage in a technical interview or take on a specific task. This stage allows us to understand your expertise and offers you a glimpse into the challenges you might tackle at CSHARK
Meet the Team
This is where the magic happens. Engage with a potential supervisor, your future team, or even a client. It’s a deep dive into your prospective role and a chance to grasp the collaborative spirit of CSHARK.
Crafting Your Offer
Once we recognize the mutual fit, we’ll discuss the specifics of your offer. We believe in crafting a package that respects your skills, experience, and aspirations.
Onboarding Preparation
Once you’re set to join us, our team crafts a tailored onboarding plan. This includes setting up your tools and accounts, scheduling introductions to key team members, and organizing orientation sessions to make your integration seamless and efficient.
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
Get to Know How We Work