Senior Back-End Developer

We are seeking a highly skilled and experienced Senior Back-End Developer in Johannesburg or Cape Town that is proficient in TypeScript to design, build, and deploy distributed cloud-based applications. The ideal person will have a strong understanding of scalable system architecture and cloud-native development. Experience integrating with Large Language Models (LLMs), Azure, and React front-end applications is advantageous but not essential.

Key Responsibilities:

• Develop scalable and secure back-end services using TypeScript to support telecom platforms and services.
• Design and implement APIs and microservices for telecom applications, including provisioning, billing, and network management.
• Collaborate with cross-functional teams including network engineers, front-end developers, and cloud architects.
• Build and maintain distributed systems that handle high-throughput telecom data.
• Ensure system reliability, performance, and fault tolerance in cloud environments.
• Integrate with third-party systems, including AI/LLM services, OSS/BSS platforms, and telecom protocols.
• Participate in code reviews, testing, and deployment automation.
• Stay informed on telecom trends, cloud technologies, and software engineering best practices.

Key Skills & Competencies:

• Strong experience in TypeScript and Node.js development.
• Solid understanding of telecom architectures, protocols (e.g., SIP, Diameter, GTP), and data flows.
• Experience with cloud platforms (preferably Azure) and distributed systems.
• Familiarity with microservices, containerization (Docker), and orchestration (Kubernetes).
• Knowledge of RESTful APIs, GraphQL, and asynchronous programming.
• Advantageous: Experience integrating LLMs (e.g., OpenAI, Azure OpenAI) and working with React front-end applications.
• Strong debugging, performance tuning, and optimization skills.

Qualifications & Experience:

• Bachelor’s degree in Computer Science, Software Engineering, or related field.
• 5+ years of experience in back-end development, with a strong focus on TypeScript.
• Proven experience building and deploying cloud-native applications.
• Experience working in agile development environments.

Desirable Attributes:

• Strong problem-solving and analytical skills.
• Excellent communication and collaboration abilities.
• Passion for clean code, automation, and continuous improvement.
• Ability to mentor junior developers and contribute to team growth.