Mihai Cojocaru
Full Stack Developer
10+ years exp
8+ years ML exp
Python
Node JS
TypeScript
SQL
JavaScript
Active 1 day ago
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Overview
Technical skills
Timeline
Roles
Overview
Senior Full-Stack AI engineer with 9+ years of experience building cloud-based distributed systems and AI-driven applications. Strong in Python backend development and React frontends, with production delivery of LLM systems using RAG, agent workflows, embeddings, and semantic search. Experienced deploying and operating services on AWS and Google Cloud using Docker, Terraform, and CI/CD.
Technical skills
Python• Senior • 10y+
Node JS• Senior • 8y+
TypeScript• Middle • 5y+
SQL• Junior
JavaScript• Junior
Python
Django
FastAPI
Flask• 10y+
Databases
ElasticSearch
MySQL• 10y+
PostgreSQL• 10y+
Google BigQuery• 8y+
Redis• 8y+
AI/ML
LangChain
LlamaIndex
Embeddings• 8y+
NLP• 8y+
Prompt Engineering• 6y+
LLM• 5y+
AI Agents
RAG
Semantic Search
Frontend
GraphQL
Next.js
React Query
Redux
Redux Toolkit
Tailwind CSS
PostCSS
React.js• 10y+
Mobile
Clean Architecture
DevOps
GitHub Actions
GitLab CI
Kubernetes
Vector
Docker• 10y+
Rest API• 10y+
GCP• 8y+
CI/CD• 5y+
WebSockets• 5y+
AWS
Terraform
Timeline
Senior Full-Stack AI Engineer
•
Senior
R2M Solution
•
Full-Time
Built production AI systems using LLMs, RAG pipelines, and agent workflows to improve internal knowledge retrieval quality. Developed scalable backend services with Python (FastAPI) and Node.js for document and query processing at high volume. Designed retrieval architectures with vector embeddings and semantic search, and implemented evaluation and hallucination detection. Deployed distributed AI services on AWS and GCP using Docker, Terraform, and CI/CD.
Python
Node JS
LLM
RAG
AI Agents
Embeddings
Semantic Search
AWS
GCP
Docker
Terraform
CI/CD
Senior Full-Stack Engineer
•
Senior
Fireart Studio
•
Full-Time
Delivered full-stack SaaS platforms using React, TypeScript, Node.js, and Python for both startup and enterprise clients. Implemented backend analytics services handling millions of events per day and built distributed data processing pipelines for large workloads. Added AI-powered features using LLM APIs and automation workflows, and implemented real-time capabilities with WebSockets and event-driven architecture. Containerized microservices with Docker and automated delivery with CI/CD pipelines.
React.js
TypeScript
Node JS
Python
LLMsince 2021
PostgreSQL
Docker
WebSockets
CI/CDsince 2021
Software Engineer
•
Middle
ASSIST Software
•
Full-Time
Developed backend services with Python (FastAPI, Flask) and Node.js for enterprise SaaS platforms. Implemented AI-assisted functionality using transformer-based NLP models and prompt engineering, and created document processing and retrieval pipelines using semantic embeddings. Built asynchronous processing with Redis queues and background workers, defined structured AI output schemas, and exposed REST APIs for integrations. Optimized analytics queries on PostgreSQL and BigQuery, and deployed containerized workloads on Google Cloud.
Python
Flask
Node JSsince 2018
NLP
Prompt Engineering
Embeddingssince 2018
Redis
Docker
GCPsince 2018
PostgreSQL
Google BigQuery
Rest API
Full-Stack Developer
•
Middle
Qualitance
•
Full-Time
Built backend services using Python and Flask to support enterprise web platforms. Implemented frontend features with React and contributed to REST API integration between frontend and backend. Designed and maintained relational database schemas using MySQL and PostgreSQL, and worked on production issue resolution to improve stability and performance. Maintained CI/CD pipelines using Docker and GitLab CI.
Pythonsince 2016
Flasksince 2016
React.jssince 2016
Rest APIsince 2016
MySQL
PostgreSQLsince 2016
Dockersince 2016