AboutDRJS Software and Consulting

About DRJS

Engineering depth, pharmaceutical insight and modern software

DRJS Software & Consulting Ltd is founded and directed by Dr David Slade, whose work spans pharmaceutical and process engineering, applied mathematics, first-principles modelling, data-driven AI, analytics and digital product delivery.

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Dr David SladeFounder & Director

How I think and build

Start from first principles, then use data where it adds power

I am passionate about understanding why a system behaves as it does. That means starting with the underlying physics, chemistry and engineering, then combining that understanding with data, statistics and AI to produce models that are both useful and explainable.

Much of my industrial work has sat in pharmaceutical and formulated-product development and manufacturing, where scientific credibility, uncertainty and operational consequences all matter. I favour visible assumptions, validated models and architectures that a future team can operate. The result may be a digital twin, an analytics workflow, an AI model, an API or a complete product, but it should always make the decision clearer and the underlying reasoning more transparent.

Education

PhD, Mechanical Engineering

University of Leeds, 2009–2013

Research in numerical simulation of thin liquid films and coating flows, including adaptive time and mesh methods, multigrid techniques and a parallel Navier–Stokes finite-element solver implemented in C++.

Applied mathematics and mechanical engineering foundations developed through pharmaceutical and chemical engineering applications.

Experience

Engineering research shaped by pharmaceutical industry delivery

A career translating first-principles models, industrial data and software into tools for product design, process development, manufacturing and better technical decisions.

Founder & Director

Current
DRJS Software & Consulting Ltd

Building software products and providing consulting that connects engineering and pharmaceutical understanding with modelling, analytics and practical delivery.

Application engineering

Current
Modersys

Developing and applying mechanistic, hybrid and data-driven methods for intelligent processing, manufacturing and operational decision support.

Lead application engineering

Applied Materials

Advanced analytics, process modelling and predictive-maintenance strategies for smart manufacturing in pharmaceutical and formulated-product industries.

Senior consulting and model development

Process Systems Enterprise / Siemens PSE

Mechanistic model libraries, model-driven design and industrial projects across pharmaceutical product and process development, food, consumer goods and solids processing.

Industrial modelling

Procter & Gamble

Analysis and development of spray-drying processes using mechanistic and computational modelling.

Research

Simulation Centre, University of Leeds

Numerical simulation of complex free-surface flows using adaptive methods and parallel C++ finite-element software.

What that means for clients

Mechanistic understanding, data-driven insight and the software to connect them

First-principles and hybrid modelling

Mechanistic simulation, numerical methods, statistical learning, Bayesian updating, AI and rigorous model validation.

Software systems

Next.js, React, TypeScript, Python, FastAPI, PostgreSQL, APIs, cloud deployment and automation.

Technical strategy

Discovery, architecture, option assessment, production readiness and evidence-based decisions.

Communication

Technical writing, teaching, stakeholder workshops, design reviews and decision-focused presentations.

Selected public work

Research and industry contribution

Work with DRJS

Put that range to work on a real problem.

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