SUMMARY:
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 ...
POSITION INFO:
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.
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.
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:
- Bachelor’s degree in Computer Science, Software Engineering, or related field.
Other information applicable to the opportunity:
- Initial 6 month contract
- Level: Senior: 8+ years experience
- Location:  Cape Town or Johannesburg – Hybrid way of work
Why work for us?
Want to work for an organization that solves complex real-world problems with innovative software solutions? At iOCO, we believe anything is possible with modern technology, software, and development expertise. We are continuously pushing the boundaries of innovative solutions across multiple industries using an array of technologies. 
You will be part of a consultancy, working with some of the most knowledgeable minds in the industry on interesting solutions across different business domains. 
Our culture of continuous learning will ensure that you will have all the opportunities, tools, and support to hone and grow your craft. 
By joining IOCO you will have an open invitation to developer inspiring forums. A place where you will be able to connect and learn from and with your peers by sharing ideas, experiences, practices, and solutions. 
iOCO is an equal opportunity employer with an obligation to achieve its own unique EE objectives in the context of Employment Equity targets. Therefore, our employment strategy gives primary preference to previously disadvantaged individuals or groups.
