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.

Stack Influence is a VC-funded creator marketplace app connecting eCommerce brands with everyday social media users. We are a high-growth, remote-first startup that offers a flexible 4- day work week. You will be responsible for developing the codebase and infrastructure for a modern tech stack (React, Node, Next.js, Azure Cloud). We are looking for a high impact individual contributor who can architect, build, and deploy end-to-end full-stack applications. We are a small team with two other senior engineers contributing to the codebase. Salary is between $125-200k USD with equity potential. Responsibilities : Develop, test and iterate on product features spanning frontend (React, Next.js, TypeScript), backend (Node.js, PostgreSQL, Hono), and cloud infrastructure (Azure). Work closely with product, design, QA, and business teams to translate requirements, mockups and process flows into production-ready features. Qualifications : 7+ years experience as a full-stack software engineer working on modern JavaScript/TypeScript codebases. Strong data and querying skills, experienced with both relational databases (PostgreSQL) and NoSQL databases (MongoDB). Strong experience with cloud infrastructure (Azure). Experience with writing and debugging automated tests (Jest). Motivated and productive in small, remote teams with async communication and minimal supervision. Customer-first mindset with a focus on usability and performance.

About Our Team Our employees thrive in a culture that's fast-paced and ego-free, where innovation and collaboration are encouraged at every turn. We provide federal agencies instant access to experienced professionals who understand their unique challenges and know the most efficient ways to address them. We continually invest in resources and talent, keeping specialized teams in place to craft tailored technologies. Our solutions empower federal organizations to grow, modernize, and succeed in a rapidly evolving landscape. We value all voices and seek individuals passionate about technology and creative problem-solving. If you enjoy expanding your skill set while tackling real-world business problems, you’ll feel right at home here. Veterans and military spouses are especially encouraged to bring your unique experience to our team. About the Role: We are seeking an experienced Senior Backend / API Application Developer to design, develop, and maintain scalable, secure backend systems and APIs. This role blends Java (Spring Boot) and JavaScript/TypeScript (Node.js) development and focuses heavily on data access, system integrations, and API-driven architectures. You will collaborate with cross-functional Agile teams to deliver high-quality, production-ready solutions that integrate with enterprise systems and external partners. Key Responsibilities Design, develop, and maintain scalable and secure backend applications and RESTful APIs using Java (Spring Boot) and Node.js with TypeScript. Work extensively with relational databases (Salesforce, PostgreSQL, MySQL, Oracle, Microsoft SQL Server) and NoSQL data stores such as MongoDB or DynamoDB. Design and implement efficient data access layers, optimized queries, and database schemas to ensure performance and scalability. Build and maintain system-to-system integrations using RESTful APIs and event-driven messaging patterns. Configure and manage API gateways, proxies, routing, rate limiting, and access control using API management platforms. Develop asynchronous workflows using messaging systems such as Kafka or RabbitMQ. Write clean, efficient, and well-documented code with comprehensive unit and integration tests. Develop and maintain CI/CD pipelines using Jenkins or GitLab CI. Containerize applications using Docker and support orchestration with Kubernetes. Collaborate with Agile teams, participate in code reviews, and contribute to continuous improvement. TAG: #LI-I4DM Qualifications

• Lead a team responsible for invoice generation and validation • Ensure every customer receives the right invoice at the right time • Collaborate on validation systems for continuous correctness • Enhance the customer billing experience for clarity