Senior Backend Engineer

Backend Developer
We are a leading software development company that specializes in innovative financial and
cryptocurrency solutions. We are at the forefront of the digital finance revolution, with a prestigious portfolio that includes top European crypto exchange, 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 looking for a great Back End Developer who is proficient with NodeJS. In this role you will
conceptualize 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 in 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 codes
● Design and implementation of low-latency, high-availability, and performant applications
● Implementation of security and data protection
● Integration of data storage solutions
● Works with product team to understand project requirements
● Support existing features and develop new ones.
● Maintain high-quality codebase, tested, secure and up to date
● Find problems and solve them before they arise.
● Optimize applications for maximum speed and scalability
● Work on the backend, set up an automatically 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.
● A minimum of 4 years coding in Node JS and 5 years as a Backend Developer.
● Deep understanding of Node.js core concepts, asynchronous programming, and its event-
driven architecture.
● Experience with popular Node.js frameworks like Express.js.
● Hands-on experience with PostgresSql, Redis, 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.
● 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.