Bogdan – AWS, Python, LLM, experts in Lemon.io

Bogdan

From Romania (UTC+3)flag

AI Engineer|Senior

Bogdan – AWS, Python, LLM

Senior AI Engineer with a background in deep learning and computer vision, now building production LLM and agent systems on AWS and Azure. He has led a team delivering multi-agent code migration, built a WhatsApp booking agent and a customs-declaration platform with a self-learning extraction pipeline. His infrastructure work includes quota admission control and a custom LiteLLM routing strategy across Bedrock regions.

8 years of commercial experience
Main technologies
AWS
3 years
Python
7 years
LLM
3.5 years
AI agent development
3 years
AI agent orchestration
2.5 years
Bedrock
1 year
Additional skills
PostgreSQL
Kubernetes
Azure DevOps
React
Typescript
Angular
FastAPI
SQL
Amazon SQS
Amazon SNS
C#
Amazon EC2
Microsoft Azure
LangChain
RAG
Redis
CrewAI
Computer Vision
Deep Learning
PyTorch
Data Science
Machine learning
Reinforcement Learning
AI benchmarking
AI chatbot development
Helm
MCP
Direct hire
Possible
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Experience Highlights

Lead AI Engineer
Oct 2024 - Ongoing2 years 1 month
Project Overview

A multi-agent platform that automates legacy code migration, such as moving SQL stored procedures to C#, on codebases of over 100K lines.

Responsibilities:
  • Led a team of 4 building a multi-agent system that migrated legacy code, for example SQL stored procedures to C#, on projects over 100K lines.
  • Built a 12-agent system with separate roles under one coordinating agent.
  • Had agents pull code context through MCP servers and compare screenshots of the old and new UI through browser automation.
  • Ran migrations in parallel on AWS as containers.
Project Tech stack:
SQL
C#
AWS
Amazon EC2
Amazon SNS
Amazon SQS
Containers
Forward Deployed Engineer
Aug 2025 - Oct 20261 year 2 months
Project Overview

A customs platform for UK import declarations. It extracts data from invoices, packing lists and certificates and submits declarations to HMRC for customs brokers.

Responsibilities:
  • Worked directly with UK customs brokers to learn the import declaration process and turned their daily workflow into product decisions and customs rules kept as data, not code.
  • Contributed as the main contributor to the first production version.
  • Rebuilt the platform as a TypeScript monorepo.
  • Built the document extraction pipeline for invoices, packing lists, and certificates using local PDF parsing, vision OCR, and LLM extraction.
  • Integrated HMRC CDS submissions and notifications, NCTS transit, IPAFFS, and the UK Trade Tariff API.
  • Guarded releases with replay-based validation, automated tests, and browser scenarios filing to the HMRC sandbox.
  • Deployed the platform on Azure using AKS and Helm.
Project Tech stack:
Angular
FastAPI
PostgreSQL
Typescript
React
AWS
Azure DevOps
Kubernetes
R&D
Oct 2024 - Feb 20254 months
Project Overview

A product feature that automatically splits IT tickets into solvable subtasks using LLM reasoning approaches.

Responsibilities:
  • Automated splitting IT tickets into solvable subtasks.
  • Benchmarked CoT, Tree of Thoughts, LATS, ReAct, Reflexion, and multi-agent setups on shared metrics.
  • Shipped the best-performing approaches into the product.
Project Tech stack:
Python
LangChain
Microsoft Azure
Jul 2024 - Sep 20242 months
Project Overview

A legal search engine built on RAG over 400,000 documents, returning relevant passages and a plain-language answer in 10–15 seconds.

Responsibilities:
  • Built a RAG search engine over 400,000 legal documents that returned relevant passages and a plain-language answer in 10-15 seconds.
Project Tech stack:
RAG
FastAPI
PostgreSQL
Feb 2024 - Jun 20244 months
Project Overview

An LLM assistant that routes each query to a specialised agent able to run calculations, call pricing APIs, or write and run SQL.

Responsibilities:
  • Built the request router for the xPortal assistant.
  • Routed each query type to its own LLM agent that could run calculations, call pricing APIs, or write and run SQL.
Project Tech stack:
LLM
SQL
Apr 2023 - Jan 20249 months
Project Overview

A WhatsApp booking agent for a platform serving 700 partner salons and 180,000 active users, taking over appointments previously booked by phone.

Responsibilities:
  • Led a small team that took a WhatsApp booking agent from concept to production for a platform serving 700 partner salons and 180,000 active users.
  • Built an agent that booked over 10 appointments a day that used to be handled by phone.
Project Tech stack:
Python
LangChain
CrewAI
Redis
PostgreSQL
AWS
Data Scientist, ML Engineer
May 2022 - Apr 202311 months
Project Overview

Machine learning work including a named entity recognition solution taken to production and model optimisation for faster inference.

Responsibilities:
  • Cut inference time and model size by up to 10x with quantization, pruning, and compilation, without losing accuracy.
  • Took a named entity recognition project from concept to production, reaching 98% F1 on the main classes.
Project Tech stack:
R&D Deep Learning Engineer
Feb 2019 - May 20223 years 3 months
Project Overview

Research and development of deep learning methods for cardiac MRI, including segmentation, classification and synthetic data generation.

Responsibilities:
  • Worked on 7+ research projects applying deep learning to cardiac MRI.
  • Produced patent filings and a first-author journal paper through the research work.
  • Built 3 annotation tools for time-series and 4D medical data used to label thousands of samples.
  • Applied 2D/3D segmentation, regression on 3D+t MRI, multi-modal classification, GAN-based synthetic data, few-shot learning, and reinforcement learning for landmark detection.
Project Tech stack:
Deep Learning
Computer Vision
Computer Vision Engineer
Jul 2018 - Dec 20185 months
Project Overview

An interactive tabletop augmented reality product that combines machine learning and blockchain-based image sourcing.

Responsibilities:
  • Built keypoint regression and object detection on RGB-D streams for a smart lamp.
  • Built an automated pipeline for collecting and labelling data.
Project Tech stack:
Computer Vision
Intern, Computer Vision and Web Development
Mar 2016 - Jun 20182 years 3 months
Project Overview

Computer vision research on replacing SIFT feature matching in medical images with deep learning.

Responsibilities:
  • Redesigned SIFT feature matching for medical images with deep learning.
  • Presented a poster at the EEML summer school.
Project Tech stack:
Computer Vision

Languages

Romanian
Advanced
Spanish
Intermediate
English
Advanced

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