Contract Role 1 Month - onsite (Backend Developer)

Company Description

SOL9X | AVTECHFIN is committed to empowering businesses with innovative solutions for digital growth. From website development and intuitive mobile applications to strategic marketing and business development, we deliver tailored strategies to meet our clients' unique needs. Our expert team combines cutting-edge technology, creative design, and a client-centric approach to achieve outstanding results. Known for quality, affordability, and reliability, we ensure every project meets the highest standards and deadlines. At AVTECHFIN, we’re dedicated to propelling businesses forward and delivering measurable success in the digital age.

Backend Developer

• Role:

  Backend Developer (Node.js / Python / JavaScript)

• Experience:

  Minimum

  2 years

• Duration:

  1 Month (Contractual)

• Work Mode:

  Onsite

• Location:

  New Delhi, Delhi

• Compensation:

  ₹30,000 (Fixed for 1 month)

• Develop and maintain

  scalable backend services

  using

  Node.js, Python, and JavaScript

• Design, build, and optimize

  RESTful APIs

  and backend business logic
• Implement and optimize

  RAG pipelines

  , vector databases, and

  LLM-based workflows

• Integrate

  Generative AI models

  (OpenAI, Llama, HuggingFace, etc.) into backend systems
• Work on

  system design, backend architecture, and data flow

  for scalable applications
• Manage

  MongoDB and relational databases

  , including schema design and query optimization
• Implement

  authentication, authorization, caching, and performance optimizations

• Collaborate with frontend teams to define APIs and integration workflows
• Deploy, monitor, and maintain backend services
• Debug, test, refactor, and improve existing codebases
• Write clean, modular, and well-documented code

• Strong experience in

  Node.js, Python, and JavaScript

• Solid understanding of

  backend system design and architecture

• Experience with

  MongoDB

  (schema design, indexing, aggregation)
• Strong knowledge of

  REST APIs, WebSockets, and microservices

• Clear understanding of

  Retrieval-Augmented Generation (RAG)

• Experience with

  LLMs, embeddings, and vector databases

  (FAISS, Pinecone, Chroma, etc.)
• Familiarity with

  authentication methods

  (JWT, OAuth)
• Basic frontend knowledge (

  HTML, CSS, JavaScript

  ) for API integration
• Experience with

  Git, Docker, and CI/CD pipelines

• Exposure to

  cloud platforms

  (AWS / GCP / Azure) is a plus

• Strong problem-solving and debugging skills
• Ability to work independently and meet tight deadlines
• Good communication and cross-functional collaboration skills

• Bachelor’s degree in Computer Science / Engineering or related field (preferred)
• Minimum

  2 years

  of professional backend development experience

• Based in Delhi or willing to relocate immediately

• New Delhi, Delhi:

  Reliably commute or relocate before joining (

  Mandatory

  )