Backend Developer

Company Description

SOL9X, in partnership with AVTECHFIN, provides tailored solutions designed to empower businesses with a robust online presence and drive growth. With expertise in website development, mobile apps, and desktop applications, SOL9X combines cutting-edge technology, innovative design, and strategic marketing techniques to meet today’s business challenges. The team takes pride in its commitment to quality, affordability, and client satisfaction while delivering efficient project management and exceptional outcomes. SOL9X offers a one-stop solution for businesses to realize their goals, attract customers, and achieve measurable results. By collaborating with successful businesses, SOL9X is transforming ideas into impactful realities.

We are looking for a passionate Backend Developer with strong knowledge of Generative AI, RAG (Retrieval Augmented Generation), and backend technologies. The ideal candidate will play a key role in developing scalable AI-driven products and supporting end-to-end system architecture.

Key Responsibilities

• Develop and maintain backend services using Python and JavaScript.
• Build and optimize RAG pipelines, vector databases, and LLM-based workflows.
• Integrate Generative AI models (OpenAI, Llama, HuggingFace, etc.) into production systems.
• Collaborate with frontend team to design APIs and backend logic.
• Work on system design, architecture, and deployment of scalable backend services.
• Manage databases, caching layers, authentication, and system performance tuning.
• Write clean, maintainable, and well-documented code.
• Debug, test, and improve existing systems and features.
• Required Skills:Technical Skills
• Strong experience in Python and JavaScript backend development.
• Clear understanding of Retrieval-Augmented Generation (RAG).
• Experience with GenAI models, embeddings, vector databases (FAISS, Pinecone, Chroma, etc.).
• Basic frontend understanding (HTML, CSS, JavaScript).
• Knowledge of REST APIs, WebSockets, microservices, and system architecture.
• Experience with cloud platforms (AWS/GCP/Azure) is a plus.
• Familiarity with Docker, Git, CI/CD pipelines.

Soft Skills

• Strong problem-solving skills.
• Ability to work independently and in a fast-paced environment.
• Good communication and teamwork abilities.

Qualifications

• Bachelor’s degree in Computer Science, Engineering, or related field (preferred).
• Minimum 2 years of professional experience in backend development.
• Based in Delhi or willing to relocate.

Job Types: Full-time, Permanent

Pay: ₹30,000.00 - ₹40,000.00 per month

Ability to commute/relocate:

• New Delhi, Delhi: Reliably commute or planning to relocate before starting work (Required)

Application Question(s):

• What is your salary expectation (per month)?

Experience:

• Back-end development: 2 years (Required)
• JavaScript: 2 years (Required)
• Python: 2 years (Required)
• System design and architecture: 2 years (Required)
• Gen AI/ RAG?: 2 years (Preferred)
• Node.js: 2 years (Preferred)
• MongoDB: 2 years (Preferred)
• Generative AI: 2 years (Preferred)

Work Location: In person