Fullstack developer

Location: Baku, Azerbaijan

Type: Full-time, on-site

Candidate type: Locals

Company: eiLink LLC

About EiGroup

At eiGroup, we believe ideas can change industries - but only if they are nurtured with structure, science, and courage.

We’re an R&D and Innovation Venture Studio that transforms human ingenuity into technological value that scales.

Our ecosystem brings together researchers, engineers, and creators who turn complex challenges into scalable products - from subsurface imaging to AI-driven analytics, from remote sensing to digital transformation.

Our ventures are built in-house, born from research, and grown into independent companies.

Together, we’re shaping how innovation takes root in this region - and how it reaches the world.

What You’ll Do

• Design, develop, and maintain backend services using Python and FastAPI
• Build modern, responsive user interfaces using React and TypeScript
• Apply clean code and architectures to write modular and maintainable code
• Implement authentication, authorization, and role-based access control
• Design and work with relational databases (PostgreSQL) and NoSQL databases (MongoDB)
• Write and integrate secure RESTful APIs following modern security best practices (JWT, OAuth2, HTTPS, input validation)
• Integrate frontend applications with backend APIs
• Integrate LLMs into real-world application workflows (prompt engineering, chaining, context management)
• Extract, parse, and process data from structured and unstructured sources including Excel, PDF, Word, and CSV files
• Write asynchronous Python code to build performant, non-blocking services
• Containerize and run applications using Docker and Docker Compose
• Write unit and integration tests to ensure code reliability
• Collaborate with cross-functional teams and participate in code reviews
  
  

What You Bring

• BSc in Computer Science, Software Engineering, or a related field (or equivalent hands-on experience)
• 2–3 years of experience building React applications with TypeScript
• Strong Python skills with solid understanding of OOP and SOLID principles — this is your primary backend language
• Strong React and TypeScript skills with a solid grasp of component architecture, state management, and modern ES6+ JavaScript — equally as important as Python
• Hands-on experience with FastAPI, including async/await patterns and asynchronous programming concepts
• Good understanding of SQL and relational database design (PostgreSQL)
• Familiarity with NoSQL databases (MongoDB)
• Experience working with LLMs — integrating APIs (OpenAI, Anthropic, etc.), building pipelines, and applying prompt engineering techniques
• Practical experience extracting and processing data from Excel, PDF, Word, and CSV files using Python libraries
• Ability to write and secure REST APIs using modern standards (JWT, OAuth2, HTTPS)
• Solid experience with Docker and Docker Compose for local development and service orchestration
• Proficiency with Git and version control workflows (branching, pull requests, code reviews)
  
  

Nice to Have

• Experience with Next.js
• Exposure to CI/CD pipelines
• Experience deploying applications to Azure
• Familiarity with testing frameworks (Pytest, Jest)
• Experience with LangChain, LlamaIndex, or similar frameworks
  
  

Our Benefits Include

• Medical insurance
• Flexible working hours
• Wellness program
• Childcare support
• Company-provided lunch