Python Developer

Description:

We are seeking a highly skilled Python 3.8+ and Java Developer to join our dynamic team. The ideal candidate will have a strong background in both Python and Java programming, along with experience in working with various technologies including JSMPP, Redis, MySQL, Linux, RabbitMQ, Celery, Apache, and Docker/Kubernetes. This role requires an individual who is proficient in developing robust, scalable, and efficient applications and can seamlessly integrate multiple systems

Responsibilities:

• Craft and implement the architecture for the backend of our messaging platform, focusing on modularity, scalability, and maintainability.
• Integrate and manage SMS gateways using SMPP and JSMPP.
• Write clean, efficient, and well-documented Python code to develop backend services and utilize the python-smpp library to handle SMPP protocol operations, ensuring robust message handling.
• Develop unit tests and perform thorough testing of the backend components to ensure reliability and performance and debug and resolve any issues that arise during the development and testing phases.
• Establish and manage SMPP connections to various SMS gateways.
• Implement logic for sending and receiving SMS messages through SMPP connections and ensure that messages are correctly formatted, encoded, and decoded according to SMPP specifications.
• Develop robust error-handling mechanisms to manage issues such as message delivery failures, connection timeouts, and protocol errors. Implement retry logic and fallback strategies to ensure high message delivery success rates.
• Design and implement solutions to scale the messaging platform to handle increasing volumes of SMS traffic.
• Conduct load testing and performance benchmarking to identify bottlenecks optimize system performance and use tools and techniques to simulate high-traffic scenarios and ensure the platform can handle peak loads.
• Monitor and manage system resources, such as CPU, memory, and network bandwidth, to ensure efficient utilization and prevent resource exhaustion.
• Investigate and diagnose issues related to SMPP connections, message delivery, and backend performance and use logging, monitoring, and debugging tools to identify root causes and implement fixes.
• Respond to incidents and outages promptly, working to restore service minimize downtime, and conduct post-incident analysis to identify improvements and prevent recurrence.
• Proactively identify areas for improvement in the backend systems and SMPP integrations. Implement enhancements and optimizations to improve reliability, performance, and maintainability.

Requirements:

• Proficiency in Python programming.
• Understanding and knowledge of the SMPP protocol and experience with SMPP client and server implementations is a plus.
• Utilize JSMPP (Java SMPP) for additional integration and functionality.
• Expertise in HTML, CSS, JavaScript
• Experience with RESTful APIs and web services.
• Familiarity with Celery, Apache
• Proficiency in JSMPP (Java SMPP) and its applications in SMS messaging.
• Spring Framework (Spring Boot, Spring MVC, Spring Security, Spring Data)
• Familiarity with message queuing systems and databases (e.g., RabbitMQ, Redis, MySQL).
• Excellent problem-solving skills and the ability to troubleshoot complex issues related to messaging systems.
• Hands-on experience with Object-Oriented Programming (OOP) concepts
• Proficiency with Data Types, Variables, and Operators
• Strong verbal and written communication skills, with the ability to explain technical concepts to non-technical stakeholders.
• Ability to work effectively in a collaborative team environment.
• In-depth knowledge of SMS messaging protocols and standards.
• Experience with cloud platforms (e.g., AWS, Google Cloud) and containerization (e.g., Docker, Kubernetes).
• Understanding of security best practices in messaging systems.
• Experience working in an Agile development environment.
• Must have strong knowledge of Python smpp library and twisted framework.