David Kell, Developer in London, United Kingdom
David is available for hire
Hire David

David Kell

Verified Expert  in Engineering

Data Engineer and Software Developer

Location
London, United Kingdom
Toptal Member Since
April 7, 2022

David is an entrepreneurial data engineer building robust, scalable, easy-to-use data platforms and internal tools. He worked with organizations like McKinsey, Barclays, and MoD to build custom solutions for big datasets with tight deadlines. He's experienced with cloud-native, modern data stack, and DataOps and proficient in browser technologies, full-stack development, and cloud platforms. David has a proven track record of leading agile teams to bring technically complex products to market.

Availability

Part-time

Preferred Environment

Visual Studio Code (VS Code), MacOS, Google BigQuery, Snowflake, Google Cloud

The most amazing...

...thing I've built is a no-code data platform with ELT, modelling, BI, and orchestration in a single web app.

Work Experience

CTO

2015 - 2022
Gyana
  • Developed a no-code data platform with ELT, modeling, BI, and orchestration in a single web app.
  • Built and sold a GPS location data analytics tool for real estate, retail, and finance, processing 100+ TB spatial data.
  • Delivered bespoke data science projects to global organizations, including McKinsey, MoD, and Barclays.
Technologies: Python, Google BigQuery, Google Cloud, SQL, Snowflake, Google Cloud Storage, Kubernetes, Django, TypeScript, JavaScript, React

Gyana

http://www.gyana.com
A no-code data platform with ELT, modeling, BI, and orchestration in a single web app.

Designed the product architecture, built the MVP, led the team to bring it to market, built our community of users, and scaled the initial revenue.
2010 - 2014

Master's Degree in Physics and Philosophy

University of Oxford - Oxford, UK

Languages

Python, SQL, TypeScript, JavaScript, Snowflake

Frameworks

Django

Other

Google BigQuery, Big Data, Programming, Statistics, Machine Learning

Libraries/APIs

React

Platforms

Kubernetes, Visual Studio Code (VS Code), MacOS

Storage

Google Cloud, Google Cloud Storage

Tools

BigQuery

Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.

1

Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.
2

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.
3

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring