Sr. Backend Developer

We are a leading software development company that specialises in innovative financial and cryptocurrency solutions. We are at the forefront of the digital finance revolution, with a prestigious portfolio that includes a top European crypto exchange, an innovative fintech banking system for South Africa, and a suite of products such as Crypto Exchange, Forex & Stock Exchange, MT5 Development, Crypto Wallet, NFT marketplaces, Crypto gaming platforms, Neo banking software, and Blockchain Consensus mechanisms development. Role Overview: We are seeking a skilled Back End Developer proficient in NodeJS. In this role you will conceptualise and contribute to blockchain-enabled initiatives, collaborating with the rest of the Team on building and maintaining solutions using Node.js. The primary focus will be on the development of all server-side logic, definition, and maintenance of the central database, ensuring high performance and responsiveness to requests from the front-end. The successful candidate will also be responsible for integrating the front-end elements built by your co-workers into the application. Therefore, a basic understanding of front-end technologies is necessary as well. Key Responsibilities: ● Integration of user-facing elements developed by front-end developers with server-side logic. ● Writing reusable, testable, and efficient code ● Design and implementation of low-latency, high-availability, and performant applications ● Implementation of security and data protection ● Integration of data storage solutions ● Works with the product team to understand project requirements. ● Support existing features and develop new ones. ● Maintain a high-quality codebase, tested, secure and up to date. ● Identify and resolve problems before they arise. ● Optimise applications for maximum speed and scalability. ● Work on the backend, set up an automatic response to user interaction. Database. ● Responsible for managing the interchange of data between the server and the users. ● Solve problems independently, working with new technologies to create quick solutions. ● Follow proper documentation for changes in application and further updates. ● Reviews, provide comments and suggestions, work with cross functional teams to achieve goals. ● Experience working with agile methodologies. ● Participate actively in team collaborations and peer code reviews. Qualifications & Skills: ● Engineering degree B.E/B.Tech/MCA/M.Tech/M.Sc. ● Deep understanding of Node.js core concepts, asynchronous programming, and its event- driven architecture. ● A minimum of 4 years coding in Node JS and 5 years as a Backend Developer. ● Experience with popular Node.js frameworks like Express.js. ● Hands-on experience with PostgreSQL, Redis, and MongoDB. ● Familiarity with Blockchain technology. ● Proven experience in performance tuning, debugging, and monitoring. ● In-depth knowledge of developing scalable and highly available RESTful APIs using NodeJS. ● Experience in CI/CD principles, troubleshooting in a distributed services environment. ● Experience with container platforms such as Docker and Kubernetes. ● Familiarity with third-party API integrations, e.g., Twilio, SendGrid, Google ● Understanding of Single-Sign-on or token-based authentication mechanisms. ● Knowledge of task/message queues, including AWS, Microsoft Azure, RabbitMQ, Pushpin, and Kafka. ● Preferred experience in the Fintech/Banking sector, especially with Crypto platforms and technologies. ● Skills in profiling and optimising both server-side applications and database queries for high performance. ● Ability to design and implement microservices and understand inter-service communication patterns. ● Experience with implementing real-time updates and communication using WebSockets. ● Prior experience with encryption and security protocols. ● Skills in writing unit, integration, and end-to-end tests. ● Familiarity with testing frameworks like Mocha, Chai, or Jest. ● Problem-solving abilities. ● Strong communication skills to collaborate with other team members, stakeholders, and potentially regulatory bodies. Show more Show less