Software Engineer - Java/Python (5-9 yrs)

Roles and Responsibilities :

- Design and develop high-performance network applications using OOP languages like Java (Must have) and Python

- Implement, enhance network applications such as DNS based global load balancers and supporting policy engines, HTTPS based reverse proxies and backend for supporting services like management and reporting portal.

- Implement, enhance and maintain network control plane applications like DNS/DoH/DoT, DHCP, Radius, NTP

- Implement, enhance network applications related to configuration of network devices and efficiently managing changes to those configurations over time.

- Be able to store and retrieve network application and device configurations in relational databases using optimized queries and best practices.

- Develop and maintain RESTful APIs for IPC across components and data retrieval.

- Perform test driven development and create automated unit test cases (Junit, Pyunit etc.) and end to end test automation for all development tasks.

- Optimize existing network applications for security, performance, reliability and scalability.

- Participate in the entire application lifecycle, focusing on coding, code reviews, debugging, and testing.

- Write clean, maintainable, and efficient code, adhering to best practices and coding standards.

- Collaborate with network engineers and other software developers to integrate network applications with other systems.

- Provide technical support for network applications, including troubleshooting and resolving issues.

- Keeping up-to-date with emerging trends and technologies in network engineering and programming paradigms.

Preferred Qualifications :

- Masters degree in Computer Science or Computer Applications, or a Bachelors degree in Electrical and Computer Engineering with computer science courses.

- 3-9 years of industry experience preferably in data communications companies.

Required Skills For software engineer network applications :

- Expertise in Object oriented programming design and languages such as Java.

- Solid experience with normalized database design, optimization, and management in MySQL.

- Strong knowledge of SQL, foreign keys, multi table joins, views, different join types, E-R diagrams, ORM mapping and database transactions and stored procedures.

- Familiarity with JSON, XML, XSD, web services and RESTful APIs.

- Expertise in asynchronous socket programming with Java.

- Expertise in data structures, algorithms, and design patterns. Knowledge of test-driven development, thread safe programing, best practices/tools for development

- Knowledge of data structures especially tries, trees and graphs along with efficient algorithms to traverse them, application of tries on IP address and CIDR subnet searches.

- Experience with multi-threading safe programming, real-time systems, and inter-process communications.

- Familiarity with software development and CI/CD tools (e.g., Git, Ansible, Jenkins).

- Detailed knowledge of Linux-based OSes (e.g., Ubuntu, Rocky Linux, Red Hat)

- Strong analytical and problem-solving skills.

- Excellent verbal and written communication skills.

- Ability to work collaboratively in a team and independently with minimal supervision.

Desired Skills For software engineer network applications :

- Knowledge of Shell programming and Python

- Knowledge of virtualization and containerization technologies (e.g., KVM, Docker).

- Ability to create new microservices from scratch

- Knowledge of JSON, NoSql databases like MongoDB, Cassandra etc.

- Knowledge of XSLT for XML transformations

- Familiarity with Cloud computing technologies especially Azure based.

- Familiarity with network and application security best practices including OAUTH, certificates, PKI.

- Understanding of networking protocols (TCP/IP, QUIC, DNS, HTTP, DHCP, BGP, OSPF, ISIS, VRRP, MPLS)

- Experience with Agile/Scrum methodologies and a collaborative approach to software development.