BL

Build a crypto card

Blockchain Power Corp.

United States, United States
$83,200.00 – $166,400.00
Full time · Remote
25 Jul, 2026

Skills

JavaScript TypeScript Python Ruby Java React Docker Kubernetes GraphQL

About the Role

**Job Summary** We are seeking an innovative and detail-oriented developer to lead the creation of a cutting-edge crypto card platform. This role offers an exciting opportunity to build a secure, scalable, and user-friendly digital asset management solution that seamlessly integrates with blockchain technologies. You will be responsible for designing and developing the core infrastructure, ensuring robust security measures, and delivering an intuitive user experience. Join us to revolutionize how users interact with cryptocurrencies through a sleek, reliable crypto card system that empowers financial freedom and digital innovation. **Responsibilities** - Architect and develop the backend systems using frameworks such as Spring Framework, Django, or Ruby on Rails, ensuring high performance and scalability for crypto transactions. - Design and implement RESTful APIs and GraphQL endpoints to facilitate secure communication between front-end interfaces and blockchain networks. - Develop responsive web applications utilizing HTML, CSS, SCSS, JavaScript frameworks like Angular or React, and ensure compatibility across devices through responsive web design principles. - Integrate various databases including MySQL, PostgreSQL, MongoDB, Microsoft SQL Server, SQLite, and develop efficient SQL queries for data management. - Implement containerization with Docker and automate deployment processes using CI/CD tools such as Jenkins or GitHub Actions to streamline development workflows. - Collaborate within Agile teams using tools like Jira or Trello to plan sprints, track progress, and adapt rapidly to project needs. - Ensure system security by applying best practices in DevOps, managing cloud services like AWS or Azure, and implementing robust encryption protocols for sensitive data. - Conduct unit testing with frameworks suited for JavaScript (Jest), Python (PyTest), or Java (JUnit) to guarantee software quality before deployment. - Design wireframes and user flows to create intuitive UX/UI experiences that enhance user engagement with the crypto card platform. - Develop comprehensive documentation covering system architecture, API specifications, and deployment procedures for ongoing maintenance and scalability. **Qualifications** - Proven experience in full-stack web development with expertise in front-end technologies such as HTML5, CSS3, SCSS, JavaScript, TypeScript, and frameworks like Angular or React. - Strong backend development skills using Java (Spring Framework), Python (Django), Ruby on Rails, or C# (.NET). - Hands-on experience working with databases including MySQL, PostgreSQL, MongoDB, Microsoft SQL Server, SQLite; proficiency in writing complex SQL queries. - Familiarity with containerization tools like Docker and orchestration platforms such as Kubernetes; experience with CI/CD pipelines using Jenkins or GitHub Actions. - Knowledge of blockchain integration techniques including APIs for cryptocurrency transactions and smart contract interactions. - Experience working within Agile software development environments utilizing tools like Jira or Trello for project management. - Understanding of system architecture principles focusing on scalability, security, and performance optimization in web applications. - Proficiency in developing responsive web applications that deliver seamless user experiences across devices. - Strong grasp of RESTful APIs, JSON data formats, web services (SOAP/REST), GraphQL APIs, and developing secure API integrations. - Familiarity with cloud platforms such as AWS or Azure to deploy scalable solutions; knowledge of DevOps practices is a plus. Join us if you’re passionate about blockchain technology and eager to shape the future of digital finance! This paid position offers an engaging environment where your technical expertise will directly impact how users manage their cryptocurrencies through innovative hardware solutions like crypto cards. Pay: $40.00 - $80.00 per hour Work Location: Remote
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