Senior Backend Developer (Node.js and Python) at Vennote Technologies Limited

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• • Senior Backend Developer (Node.js and Python) at Vennote Technologies Limited
  • View Jobs in ICT / Telecommunication / View Jobs at Vennote Technologies Limited

  Posted: Aug 27, 2026

  Deadline: Aug 31, 2026

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  Vennote Technologies Limited is a well-established ICT company with experience spanning over two decades in enterprise solutions using best of breed products in very large IT deployments around the world. Vennote Technologies Limited has certified Skilled Technical resources delivering world class implementation and support services through the use of best p...
  

  Senior Backend Developer (Node.js and Python)

  • Job Type Full Time , Hybrid
  • Qualification BA/BSc/HND
  • Experience 7 - 8 years
  • Location Lagos
  • Job Field ICT / Computer&nbsp
  • Salary Range ₦750,000 - ₦1,000,000/month

  This is a Hybrid contract position that requires individuals who enjoy challenges, prioritize, meet deadlines, and have a collaborative work ethic and teamwork spirit working with our team of Solution Architects, NLP Engineers, Speech Scientists, FrontEnd Developers, Business and Data Analysts, and Scrum Masters.

  We have:

  • A state-of-the-art, highly innovative Product platform that we continuously expand/improve to maintain our leadership
  • A team of seasoned experts to collaborate with.
  • An open mind to new technologies, methodologies, challenges, and innovation.

  Responsibilities:

  • Design and implement RESTful APIs endpoints using Express.js framework to facilitate secure and reliable communication between the client and the server.
  • Design, develop, and maintain robust and scalable backend systems for our chatbot platform using Node.js.
  • Integrate with OpenAI services using their SDKs or APIs.
  • Handle the request and response flow to the AI engine, including passing the user\'s prompt and receiving the AI-generated text.
  • Design and interact with the database to store conversational history, user profiles, application settings, and Retrieval-Augmented Generation (RAG) data sources.
  • Implementing real-time communication using WebSockets to provide a fluid, instant, and conversational chat experience.
  • Collaborate with frontend developers, data scientists, and product managers to build a seamless user experience.
  • Develop and optimize APIs for efficient data exchange between the chatbot and other systems.
  • Implement and integrate natural language processing (NLP) and machine learning models into the backend infrastructure.
  • Ensure the security and reliability of the chatbot backend by implementing appropriate measures.
  • Develop and train machine learning models using appropriate algorithms and techniques.
  • Assess the performance of the chatbot using metrics like accuracy, precision, recall, and F1-score.
  • Fine-tune models to improve their performance and address limitations.
  • Optimize backend performance and scalability to handle increasing user loads.
  • Stay up to date with the latest advancements in backend technologies and chatbot development.

  Qualifications:

  • Bachelor’s degree in computer science, Engineering, or a related field.
  • Proven experience in backend software development, with a strong focus on building scalable and high-performance systems.
  • 7 years+ strong proficiency in Node.js and Python backend programming languages.
  • Expertise in database technologies (e.g., MongoDB, SQL, NoSQL) and data modeling.
  • Solid understanding of API development and integration.
  • Experience with Azure cloud platform
  • Knowledge of NLP and machine learning concepts is a plus.
  • Strong problem-solving and analytical skills.
  • Excellent communication and teamwork abilities.

  Preferred Qualifications:

  • Experience in chatbot development or conversational AI.
  • Knowledge of messaging platforms (e.g., WhatsApp, Facebook Messenger, Slack).
  • Experience with containerization technologies (e.g., Docker, Kubernetes).

  We offer:

  • An attractive remuneration package
  • Continuous learning/training in new technologies and products
  • A great environment to work in, excel and progress professionally

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