Hey there, I am

Victor Johnson

AI Engineer with 8+ years of experience delivering production AI, Machine Learning, and Data Engineering solutions, specialising in Retrieval-Augmented Generation (RAG), Large Language Models (LLMs), Agentic AI workflows (LangGraph), semantic retrieval, vector search, and automated LLM evaluation.
Experienced designing and deploying enterprise GenAI applications using Azure OpenAI, Azure AI Search, LangChain, LangGraph, LlamaIndex, Databricks, Azure Synapse Analytics, Apache Spark, FastAPI, Python, and SQL with a strong focus on model grounding, enterprise guardrails, and cloud efficiency.
Core: LLMs, RAG, Vector Search, Agentic Systems, LLM Evaluation, Python, Azure, Databricks, Spark, LangChain,LangGraph, MLOps.

England, United Kingdom

LinkedIn GitHub

Tech Stack

Generative AI & Agentic AI

Generative AI
Large Language Models (LLMs)
Agentic AI
AI Agents
LangChain
LangGraph
Azure OpenAI
Prompt Engineering

RAG & Knowledge Systems

Retrieval-Augmented Generation (RAG)
LlamaIndex
Semantic Search
Embeddings
Vector Search
Hybrid Search
LLM Evaluation (RAGAS, DeepEval)
Grounding & Guardrails

Machine Learning & AI

Machine Learning
Natural Language Processing (NLP)
Scikit-learn
PyTorch
Predictive Maintenance
Time Series Forecasting

Data Engineering & Cloud

Azure Databricks
Apache Spark
Azure AI Search
Azure Synapse Analytics
Azure SQL
Apache Airflow
Apache Kafka
Microsoft Azure

Programming & APIs

Python
SQL
FastAPI
REST APIs
Docker
Git

Search & MLOps

Elasticsearch
MLflow
Model Monitoring
Vector Databases
Information Retrieval
CI/CD

Experience

AI Engineer - CyberSec

Sep 2026 — Present

Company -

London, United Kingdom · Hybrid | Industry - Cyber Security

Designing and implementing secure, scalable AI and Agentic AI solutions for cybersecurity, integrating intelligent threat detection, security analysis, automation, and AI-driven workflows to enhance security operations and risk management.

Data Scientist

Jan 2022 — Sep 2026

Company - Symeus

Norwich, United Kingdom · Hybrid | Industry - Finance

Architected and deployed enterprise RAG and Agentic AI solutions using Azure OpenAI, LangGraph, Azure AI Search and Databricks, reducing manual research effort by ~50%. Built semantic retrieval, LLM evaluation and knowledge ingestion pipelines alongside financial forecasting and predictive analytics models.

Data Scientist (Part-time)

Feb 2021 — Dec 2021

Company - Symeus

Norwich, United Kingdom · Hybrid | Industry - Finance

Developed scalable data pipelines using Azure Synapse Analytics and Apache Spark, optimised SQL workloads and built Power BI and Streamlit dashboards for business intelligence.

Data Scientist

Dec 2018 — Dec 2020

Company - Alstom

Bengaluru, India · On-site | Industry - Railways

Developed production ML models for predictive maintenance, Remaining Useful Life (RUL), anomaly detection and failure forecasting, reducing parts wastage by ~15% and maintenance costs by ~5–10%. Built scalable telemetry pipelines, Monte Carlo simulations and Elasticsearch-based retrieval solutions.

Junior Data Scientist

Dec 2017 — Dec 2018

Company - Alstom

Bengaluru, India · On-site | Industry - Railways

Built Elasticsearch and NLP-powered enterprise search solutions, developed ETL pipelines using Apache Airflow, Spark and Kafka, and automated SAP business processes.