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Application Developer (Angular & AI/LLM – JavaScript) (India)

Cosmos Pumps

IN Full–Time

Job Description

  • Job Objective: TWe are seeking a skilled Application Developer with strong expertise in Angular and AI/LLM integrations using JavaScript. The ideal candidate will build modern, responsive UIs and develop intelligent features powered by LLMs and LangChain.
  • Key Responsibilities
  • Build modern, scalable, and responsive user interfaces using the latest Angular framework.
  • Integrate AI-driven APIs (LLMs) into frontend applications for dynamic and intelligent features.
  • Develop strategies for model retraining and continuous improvement based on real-world usage.
  • Work with various LLM models and manage their application integrations.
  • Apply prompt engineering best practices for frontend AI applications.
  • Develop AI agents using LangChain (JavaScript) and integrate external tools.
  • Design and develop complex, high-performance UI components using Angular.
  • Write and consume REST APIs to support UI functionality.
  • Maintain and manage code repositories using GitHub.
  • Ensure code quality through unit testing and performance optimization.
  • Identify bottlenecks and bugs; implement effective solutions.
  • Support cloud deployment to make AI applications production-ready.
  • Follow agile development practices and collaborate with cross-functional teams.
  • Maintain clean, well-structured, and automated codebases.

Location

Faridabad, Haryana

Experience

2–3 years

Skills and Qualifications

  • Required Skills
  • Strong programming expertise in Angular and JavaScript
  • Hands-on experience with LangChain (JavaScript)
  • Experience integrating LLM models into applications
  • Solid understanding of Angular/JavaScript design patterns
  • Strong knowledge of object-oriented programming
  • Experience with SQL and NoSQL databases
  • Familiarity with cloud technologies and deployments
  • Experience working in Agile environments
  • Proficiency with GitHub/source control
  • Soft Skills
  • Strong analytical and problem-solving abilities
  • Good communication and collaboration skills
  • Ability to work effectively with technical and non-technical stakeholders • Robust interpersonal and team-building capabilities

Posted 10 Mar 2026 · Listing from OnJob.io. Create a free profile to apply and see your AI match score.

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