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Johannesburg: Senior Back-End Developer posted by Blue Pearl PTY LTD

Johannesburg: Senior Back-End Developer posted by Blue Pearl PTY LTD

Posted on 2025-08-24 00:00:00

Employer Blue Pearl PTY LTD
Category Development
Location Gauteng  / Johannesburg

Job Summary

he Role

We are seeking a highly skilled and experienced Senior Back-End Developer 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.
 
Skills and Experience

What you’ll do:

  • 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.

Your Expertise:

  • 8+ 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.

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.


Requirements

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.

Qualifications:

  • Bachelors degree in Computer Science, Software Engineering, or related field.
 
Other

Other information applicable to the opportunity:

  • Initial 6 month contract
  • Level: Senior: 8+ years experience
  • Location:  Cape Town or Johannesburg Hybrid way of work

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