Senior Full stack developer

Professional Summary

I’m a Senior Full-Stack Developer with 9+ years of experience building scalable enterprise applications across healthcare, energy, banking, insurance, and retail domains.

Technical Skills

• Frontend Development: React.js, TypeScript, JavaScript, Redux Toolkit, Redux-Saga, Material UI
• Backend Development: Node.js, Express.js, Python, FastAPI, Pydantic
• API Development: REST APIs, GraphQL, API Integration
• Generative AI & LLMs: OpenAI API, Large Language Models (LLMs), Prompt Engineering, Retrieval-Augmented Generation (RAG), AI Agents, Tool Calling
• AI Frameworks & Orchestration: LangChain, LangGraph, Text Embeddings, Semantic Search, Document Retrieval Pipelines
• Databases: MySQL, MongoDB, Qdrant Vector Database
• Architecture: Microservices, Micro-Frontends, Module Federation, Monolithic Applications, Event-Driven Architecture
• Messaging: Apache Kafka, RabbitMQ
• Cloud & DevOps: AWS, Microsoft Azure, Docker, Kubernetes, CI/CD, GitLab
• AI-Assisted Development: GitHub Copilot, Cursor, Claude, ChatGPT

Portfolio link: https://shashikant-hr.me/

Role Preference: Seeking a full-time Senior Frontend Developer or Senior Full-Stack Developer position where I can contribute to scalable applications, technical architecture, and high-quality software delivery while continuing to grow in Generative AI engineering.

Key Strengths: Strong problem-solving skills, technical ownership, performance optimization, code reviews, mentoring, Agile collaboration, and translating complex business requirements into maintainable technical solutions.

Location & Availability: Based in Vilnius, Lithuania, with a valid Lithuanian residence permit and full authorization to work in Lithuania without visa sponsorship. Available to start immediately.