Who We Are Freedx is a newly established cryptocurrency exchange dedicated to providing a seamless, secure, and innovative trading experience. Our team comprises experienced professionals from the crypto, finance, and technology sectors, all passionate about driving the future of digital finance. At FreedX, we are committed to creating a platform that empowers our clients with the freedom to manage their digital assets confidently and efficiently. Our Vision: At Freedx, our vision is to be the most trusted and reliable cryptocurrency exchange, offering unparalleled freedom and scalability to our clients. We aim to build a platform where users can trade and manage their assets with complete peace of mind, knowing that their security and reliability are our top priorities. We strive to continuously innovate and adapt to the evolving needs of the crypto market, ensuring that our clients have access to the best tools and services to achieve their financial goals. Join us on our journey to redefine the standards of digital asset trading and experience the freedom, reliability, and scalability that Freedx has to offer. Role We are seeking an experienced and passionate Senior .NET Backend Developer to join our team and help shape the backend infrastructure of a cutting-edge cryptocurrency exchange platform. As a Senior Backend Developer, you will be responsible for designing, developing, and optimizing our core systems to support high-frequency trading, secure transaction processing, and real-time data flow. This is a unique opportunity to work at the forefront of the crypto industry, leveraging your expertise in .NET to build scalable and efficient systems that meet the demands of a fast-growing, high-performance exchange. Key Responsibilities Design & Development: Lead the design and development of backend services and microservices using .NET (C#) to support trading, transaction processing, and account management in a high-availability, low-latency environment. Architecture & Optimization: Architect efficient and scalable solutions for core exchange functions, including order matching, wallet management, and payment gateways. API Development: Create and maintain RESTful APIs and WebSocket services to facilitate seamless data communication with frontend applications and third-party integrations. Security & Compliance: Implement security best practices to protect user data and transactions, and ensure compliance with industry standards and regulatory requirements. Requirements Required Skills & Experience Technical Proficiency: 5+ years of experience in backend development using .NET Core and C# . Strong experience with microservices architecture and cloud-based services (e.g., AWS, Azure). Proficient in SQL and NoSQL databases , with hands-on experience in data modeling, query optimization, and high-volume data processing. API Development: Extensive experience in developing secure and scalable RESTful APIs and WebSocket-based services. Crypto Knowledge: Basic understanding of blockchain, cryptocurrencies, and the crypto trading ecosystem is highly desirable. Security Awareness: Knowledge of security practices, encryption standards, and compliance relevant to the financial or crypto sectors. Analytical Skills : Strong problem-solving skills and an ability to work in a fast-paced, agile environment. Collaboration: Excellent communication and team collaboration skills to work with cross-functional teams including frontend developers, DevOps , and product managers. Preferred Qualifications Experience with high-frequency trading platforms or real-time financial systems Familiarity with message brokers like Kafka or RabbitMQ Previous experience in a fintech or crypto environment Familiarity with CI/CD pipelines and DevOps practices Benefits What We Offer: Competitive salary Generous paid leave Opportunity for professional development, participation to industry events Flexible payment options - choose to be paid in traditional currency or cryptocurrency. High-impact environment - your work directly shapes our growth and success. Close collaboration with the founders, experienced leaders and cross-functional teams. Freedx is an equal opportunity employer. We stand for an open and inclusive work environment that fosters the well-being of everyone. We embrace and encourage differences in age, color, disability, ethnicity, family or marital status, gender identity or expression, language, national origin, physical and mental ability, race, religion, sexual orientation, socio-economic status, veteran status, and other characteristics that make our people unique.