Senior .Net Developer

About Freedx

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.

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.

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.

• Design & development of backend services and microservices using .NET (C#) to support trading, transaction processing, and account management in a high‑availability, low‑latency environment.
• Architect efficient and scalable solutions for core exchange functions, including order matching, wallet management, and payment gateways.
• Create and maintain RESTful APIs and Web Socket services to facilitate seamless data communication with frontend applications and third‑party integrations.
• Implement security best practices to protect user data and transactions, and ensure compliance with industry standards and regulatory requirements.
• Work with SQL and No
  
  SQL databases (e.g., Postgre
  
  SQL, Mongo
  
  DB) to ensure data integrity, efficiency, and performance optimization.
• Develop unit, integration, and performance tests to ensure high code quality, reliability, and scalability in a production environment.
• Collaborate with cross‑functional teams to identify areas for improvement in system performance, user experience, and development workflows.
• Mentor junior developers and contribute to technical discussions to drive best practices and innovations within the team.

• 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 No
  
  SQL databases, with hands‑on experience in data modeling, query optimization, and high‑volume data processing.
• Extensive experience in developing secure and scalable RESTful APIs and Web Socket‑based services.
• Basic understanding of blockchain, cryptocurrencies, and the crypto trading ecosystem is highly desirable.
• Knowledge of security practices, encryption standards, and compliance relevant to the financial or crypto sectors.
• Strong problem‑solving skills and an ability to work in a fast‑paced, agile environment.
• Excellent communication and team collaboration skills to work with cross‑functional teams including frontend developers, Dev Ops, and product managers.

• Experience with high‑frequency trading platforms or real‑time financial systems.
• Familiarity with message brokers like Kafka or Rabbit
  
  MQ.
• Previous experience in a fintech or crypto environment.
• Familiarity with CI/CD pipelines and Dev Ops practices.

• Competitive salary
• Generous paid leave
• Opportunity for professional development and participation in 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.