4Bell Technology

Job Description

Requirements

• Bachelor's Degree in Computer Science or a related field.

• Two or more years of professional backend engineering experience.

• Expertise in JavaScript (ES6) and Node.js is a must.

• In-depth knowledge of frameworks like Express.js and Restify.

• In-depth knowledge of Node.js concepts like the event loop.

• Strong knowledge of algorithms and data structures.

• Experience in building backend services for handling data at large scale is a must.

• Ability to architect high-availability applications and servers on cloud, adhering to best practices. Microservices architecture is preferable.

• Experience working with MySQL and NoSQL databases like DynamoDB and MongoDB.

• Experience writing complex SQL queries.

• Understanding of communication using WebSockets.

• Good understanding of clean architecture and SOLID principles.

• Ability to perform technical deep-dives into code.

• Knowledge of Linux — installation of packages such as MySQL, Java, and Node.js.

• Knowledge of Linux basic commands. • Good OS and application troubleshooting skills.

• Familiarity with Git.

• Experience with AI-assisted development tools (e.g., Cursor, GitHub Copilot) to accelerate development, assist in code reviews, and support efficient coding practices is a must. Preferred Qualifications (Strong Plus): Candidates with the following will be given strong preference:

• Hands-on experience deploying and managing applications on on-premise infrastructure, particularly State Data Centres (SDCs), NIC, or other government data centres.

• Experience with any virtualization platforms (VMware, KVM, Hyper-V, Nutanix) commonly used in SDCs.

• Experience with infrastructure-as-code and configuration management tools like Ansible, Terraform, or Puppet for hybrid (cloud + on-prem) environments.

• Basic knowledge of AWS and Docker containerization.

• Experience with Kubernetes or other container orchestration in on-prem clusters.

• Exposure to monitoring and any observability tools (Prometheus, Grafana, ELK, Zabbix, Nagios) for production systems.

• Knowledge of front-end frameworks like ReactJS would be a plus