Laurentiu Piciu, Developer in Bucharest, Romania
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Laurentiu Piciu

Verified Expert  in Engineering

Machine Learning and Software Developer

Location
Bucharest, Romania
Toptal Member Since
November 14, 2022

Laurentiu is an artificial intelligence (AI) scientist with extensive expertise in natural language processing, chat agents, GPT, and general machine learning/deep learning (ML/DL). Laurentiu graduated from the artificial intelligence program for professionals at Stanford University.

Portfolio

RessiAI
AI Design, Python 3, ChatGPT, Large Language Models (LLMs)...
Anguleris Technologies
Artificial Intelligence (AI), Azure, OpenAI, Python...
Sodexo
Python, Artificial Intelligence (AI), ChatGPT, API Integration, APIs...

Experience

Availability

Part-time

Preferred Environment

Artificial Intelligence (AI), Natural Language Processing (NLP), Machine Learning, Python, ChatGPT, Chatbots, LangChain, Generative Pre-trained Transformers (GPT), Decision Intelligence

The most amazing...

...thing I've developed is an AI data analyst using LLMs that completely changed the way people are doing business intelligence (BI).

Work Experience

Founder & CEO

2023 - PRESENT
RessiAI
  • Owned all early-stage startup responsibilities, from market research and product development to client management.
  • Communicated with clients. Created and conducted presentations.
  • Developed the product's back and front end, AI engine, and integrations.
Technologies: AI Design, Python 3, ChatGPT, Large Language Models (LLMs), Artificial Intelligence (AI), Leadership, Decision Intelligence, AI Testing

Senior AI Developer

2023 - PRESENT
Anguleris Technologies
  • Trained the LLM to generate reliable 3-part specification documents for construction products.
  • Designed and developed the entire Azure architecture for document storage, pre-processing, analytics, and training.
  • Developed the API that provides the service for the internal team.
Technologies: Artificial Intelligence (AI), Azure, OpenAI, Python, Named-entity Recognition (NER), Natural Language Processing (NLP), Web Scraping, Data Scraping, Decision Intelligence

AI Developer

2023 - PRESENT
Sodexo
  • Developed an AI concierge agent using OpenAI's GPT models. The AI tool can understand users' queries and make the right travel API calls to get real answers.
  • Used LangChain and Chainlit as the primary development stack.
  • Created a configuration architecture that helps the internal team easily adjust the agent's parameters.
Technologies: Python, Artificial Intelligence (AI), ChatGPT, API Integration, APIs, Generative Pre-trained Transformer 3 (GPT-3), Decision Intelligence

AI Developer

2023 - PRESENT
Goldslate
  • Built the engine that uses AI's LLM to normalize and automate how real estate financial statements are managed.
  • Developed a Slackbot for users' interaction with the AI engine.
  • Integrated the solution into the client's existing portal with APIs.
Technologies: Artificial Intelligence (AI), Machine Learning, Natural Language Processing (NLP), Data Science, TensorFlow, OpenAI GPT-3 API, OpenAI GPT-4 API, Python 3, Django, FastAPI, Celery, Multiprocessing, Chatbots, Slackbot, PostgreSQL, MongoDB, Python, Automated Data Flows, Automation, Scripting, Back-end Development, ChatGPT, Large Language Models (LLMs), Pinecone, Weviate, Language Models, Interactive JavaScript, HTML Integration, OpenAI, OpenAI API, Amazon Web Services (AWS), API Integration, APIs, Generative Pre-trained Transformer 3 (GPT-3), Decision Intelligence

AI Developer

2023 - 2023
LB.AI Inc.
  • Developed an ecosystem that connects to a database and allows users to ask natural language queries to get immediate responses from the database.
  • Developed a Telegram bot that integrates with the conversational ecosystem and allows the interaction of the user with the database.
  • Integrated OpenAI's LLMs (prompt design, API development) for translating natural language queries into SQL code.
Technologies: Artificial Intelligence (AI), Python, Machine Learning, Natural Language Processing (NLP), Generative Pre-trained Transformers (GPT), HTML, Data Science, AWS Lambda, OpenAI GPT-4 API, CSS, OpenAI GPT-3 API, Amazon Web Services (AWS), Automated Data Flows, Automation, Back-end Development, ChatGPT, Large Language Models (LLMs), Pinecone, Weviate, Language Models, Interactive JavaScript, HTML Integration, OpenAI, OpenAI API, API Integration, APIs, Generative Pre-trained Transformer 3 (GPT-3)

Staff ML Engineer | Data Scientist

2017 - 2022
Lummetry.AI
  • Collaborated as a part of the founding team that built a startup from zero until the leading security services providers in Romania acquired it.
  • Defined ML/DL architectures and implementation plans for all proofs-of-concept (PoC), custom services, and products we developed.
  • Designed, built, trained, and deployed into production neural models for predictive analytics, natural language processing (NLP), and computer vision.
  • Implemented ML/DL pipelines for a distributed AI-based near-real-time safety and security system. Automated the surveillance system in bank branches.
  • Led the predictive analytics area for online retail recommendations and automatic category management.
  • Implemented predictive analytics systems for diminishing the out-of-stock and overstock burden by predicting sales and discovering duplicate payments.
Technologies: Python 3, C++, SQL, TensorFlow, PyTorch, Keras, SpaCy, Pandas, Scikit-learn, NumPy, OpenCV, Natural Language Toolkit (NLTK), Pytest, Jupyter, GitHub, Docker, Docker Compose, TensorBoard, PyCharm, Deep Learning, Machine Learning, Artificial Intelligence (AI), Data Science, Generative Pre-trained Transformers (GPT), Natural Language Processing (NLP), Predictive Analytics, Computer Vision, ETL, Algorithms, Optimization, Linear Algebra, Testing, Continuous Deployment, Continuous Integration (CI), Statistics, REST APIs, Big Data, Linux, Azure Cloud Services, Databases, MacOS, Windows, MongoDB, MySQL, Azure, NVIDIA CUDA, Software Engineering, Calculus, Directed Acrylic Graphs (DAG), Transfer Learning, Data Analytics, Web Scraping, Research, Servers, RabbitMQ, Named-entity Recognition (NER), Data Visualization, Microservices, Performance Tuning, Performance Testing, Data Engineering, Jupyter Notebook, MLflow, GitHub Actions, Object Detection, Object Classification, Text Classification, Recommendation Systems, Time Series, Azure Machine Learning, ML Pipelines, Object Tracking, Deep Neural Networks, Convolutional Neural Networks (CNN), Image Annotation, AI Design, Image Processing, Test-driven Development (TDD), Machine Learning Operations (MLOps), Leadership, Graphics Processing Unit (GPU), Distributed Systems, BERT, Processing & Threading, Bash, Flask, Django, Object-oriented Programming (OOP), Predictive Modeling, Regular Expressions, Regex, Python, Automated Data Flows, Automation, Scripting, Back-end Development, Interactive JavaScript, HTML Integration, OpenAI, API Integration, APIs, Generative Pre-trained Transformer 3 (GPT-3)

Undergraduate Teaching Assistant

2016 - 2019
University Politehnica of Bucharest
  • Acted as the teaching assistant for the graduate course "Data Science with Deep Learning."
  • Provided teaching assistance for the undergraduate laboratory "Object Oriented Programming."
  • Prepared laboratory materials, support, exercises, and home assignments. Helped the students to solve problems and offered constructive feedback.
Technologies: Python, TensorFlow, Keras, Pandas, Data Science, Deep Learning, Machine Learning, Java, Object-oriented Programming (OOP)

Legal Documents Processing

• NLP engine that automates legal documents tagging and confidentiality (names, addresses, telephone numbers)

• Exposes the functionalities via REST APIs to be integrated into the client's ecosystem

• Drastically reduced human costs that manually performed the tasks

Distributed AI-based Near-real-time Safety and Security System

SolisBox is an enterprise AI on-premise solution for safety and security integrated into an IoT platform.

• The purpose of this product is to gather data from multiple streams (CCTV cameras, video files, sensors). I analyzed all the data in near-real-time using deep neural models to apply some algorithms for raising alerts when needed (e.g., crowded zones, people fallen or in distress, obstructed camera, etc.) or just performing some distributed jobs (e.g., blurring a video file).

• Allows deep neural models to be continuously improved by training them with data collected in production.

• Communicates with the IoT platform that integrates all the alerts via MQTT.

LENS+

http://lens.lummetry.ai
• I led the creation of a predictive analytics solution for the retail industry with many clients and SKUs.

• Evaluated demand and sales forecasting based on complex non-linear patterns.

• Identified customer needs changes and constructed data-driven automatic insights.

• Integrated into retail solutions as processes that train models on the client's data and outputs results which are used to take some actions.

PaidAnalytix

https://www.paidanalytix.com
• Developed an AI-driven platform that helps companies identify and avoid duplicate payments, the most common errors in the companies' accounting departments.

• Developed a neural model to identify duplicate payments.

• With the use of siamese neural networks, the model could cut the quantity of manual labor by 90% while maintaining a 95% recall rate.

• Analyzed all payments in an Excel file and output the duplicate pairs.

MultiGatedUnit

https://ieeexplore.ieee.org/document/9324853
• Set up novel neural network architecture that uses directly learnable self-gating mechanisms for automated graph topology generation.

• The architecture aimed to reduce the ample experimental time and computational resources due to the search process of the architectural design.
2014 - 2018

Bachelor's Degree in Computer Science

University Politehnica of Bucharest - Bucarest, Romania

APRIL 2022 - PRESENT

Artificial Intelligence Professional Program

Stanford University

Libraries/APIs

TensorFlow, Keras, Pandas, NumPy, Matplotlib, PyTorch, Scikit-learn, REST APIs, SpaCy, OpenCV, Natural Language Toolkit (NLTK)

Tools

GitHub, PyCharm, ChatGPT, Pytest, Jupyter, Docker Compose, TensorBoard, Named-entity Recognition (NER), RabbitMQ, Azure Machine Learning, Azure Kubernetes Service (AKS), Google AI Platform, Celery

Languages

Python 3, Bash, Python, SQL, Regex, C++, Java, HTML, CSS

Paradigms

Data Science, ETL, Testing, Microservices, Object-oriented Programming (OOP), Siamese Neural Networks, Automation, Test-driven Development (TDD), Continuous Deployment, Continuous Integration (CI)

Platforms

Linux, MacOS, Docker, Windows, NVIDIA CUDA, Jupyter Notebook, Amazon Web Services (AWS), Azure, AWS Lambda

Storage

Databases, Azure Cloud Services, MongoDB, MySQL, PostgreSQL

Frameworks

Flask, Django

Other

Machine Learning, Software Engineering, Algorithms, Deep Learning, Artificial Intelligence (AI), Natural Language Processing (NLP), Predictive Analytics, Computer Vision, Optimization, Linear Algebra, Directed Acrylic Graphs (DAG), Transfer Learning, Data Analytics, Research, Servers, Data Visualization, Performance Tuning, Performance Testing, Text Classification, Recommendation Systems, ML Pipelines, Object Tracking, Deep Neural Networks, Convolutional Neural Networks (CNN), Image Annotation, AI Design, Image Processing, Distributed Systems, Processing & Threading, Data Analysis, Generative Pre-trained Transformers (GPT), Chatbots, LangChain, OpenAI GPT-4 API, OpenAI GPT-3 API, Predictive Modeling, Automated Data Flows, Scripting, Back-end Development, Large Language Models (LLMs), Language Models, OpenAI, OpenAI API, API Integration, APIs, Generative Pre-trained Transformer 3 (GPT-3), Operating Systems, Statistics, Big Data, Calculus, Web Scraping, Data Engineering, Object Detection, Object Classification, Time Series, Machine Learning Operations (MLOps), Leadership, Graphics Processing Unit (GPU), BERT, OOP Designs, Data, Regular Expressions, Pinecone, Weviate, Reinforcement Learning, Deep Reinforcement Learning, MLflow, GitHub Actions, Decentralized Systems, FastAPI, Multiprocessing, Slackbot, Interactive JavaScript, HTML Integration, Data Scraping, Decision Intelligence, AI Testing, Text-to-text Transfer Transformer (T5)

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