Rock de Vocht

Team Lead / Software Engineer

Professional Profile

Rock de Vocht

Hi! I'm Rock. An innovative technical leader and Master of Science in Computer Science with deep expertise in Software Engineering, Natural Language Processing, and large-scale AI infrastructure. Expert at architecting sophisticated data retrieval systems (RAG) and managing complex environments in Linux. Proven ability to lead development teams and creating high-performance big-data solutions.

Core Technical Expertise

AI & Data Engineering
  • Context Engineering: RAG using OpenAI, Gemini, Ollama
  • NLP: Semantic Search, Symbolic Logic, Named Entity Recognition (NER), Pattern Analysis
  • Big Data: Spark, Cassandra (noSQL), Hadoop
Infrastructure & Development
  • Cloud: Azure, Google Cloud (GCP), Linode
  • DevOps: Kubernetes, Docker, CI/CD pipelines
  • Languages: Kotlin, Python, Java, C#, C, Rust, Go, React js + TypeScript

Professional Experience

CSO / CTO | SimSage (UK) Ltd Cambridge, UK | Jan 2020 – Present
  • Architected a Graph-based Enterprise Semantic Search Engine utilizing advanced NLP for context-engineering in LLMs.
  • Integrated production AI workflows with Gemini, OpenAI, CoPilot, and AWS Bedrock.
  • Built and maintained a massive codebase (250k+ lines) with 30+ enterprise connectors (SharePoint, OneDrive, Google Drive). Big-data solution for handling millions of Enterprise documents securely.
  • Optimized infrastructure using Ubuntu Server, Kubernetes, and Docker.
Developer (Contract) | MBIE, NZ Immigration Wellington, NZ | May 2018 – Dec 2019
  • Developed the Visa Assessment Tool (VAT) and Risk Analysis Project using C# on Azure/Linux.
  • Applied Machine Learning for data quality and signal analysis on 170 million unstructured records.
  • Utilized Python and neural networks to extract statistically significant values from complex datasets.
NLP Specialist | Booktrack.com Auckland/Wellington, NZ | Mar 2016 – May 2018
  • Led AI and NLP research and development, focusing on emotional text analysis and contextual understanding.
  • Designed an Automatic Speech Recognition (ASR) system for automated transcription and sentiment analysis.
  • Managed deployments using Kubernetes and Docker across Google Cloud and Azure.
Senior Developer (Contract) | Verifone Wellington, NZ | Jan 2015 – Mar 2016
  • Key member of the Payment Gateway BAU team, responsible for troubleshooting and fixing complex, level-three support issues.
  • Performed extensive DevOps environment support and bug analysis for mission-critical financial systems.
Chief Scientist & Co-Founder | SYL Semantics Wellington, NZ | 2008 – Jan 2015
  • Created an innovative semantic search engine currently utilized by several NZ Government departments (NZTA, MPI, MoH).
  • Defined the technical roadmap and led a development team through the full SDLC and IP creation.
  • Managed complex integrations with external APIs including SharePoint, CRM, and social media platforms.

Education & Mentorship

Languages & Interests

English Dutch German (Proficient) French (Proficient)

Outside of engineering, I am a black belt in Wing Tsun Kung Fu and a composer of orchestral music.

GitHub