David van Zyl | Notion

phone: (+44)7454 048 484

Experienced lead engineer with broad knowledge of developing and maintaining large and complex full-stack applications. Enjoys mentoring and leading engineers to create high-quality and performant teams.

Skills

JavaScript/TypeScript, NodeJS
AWS SDK/CDK, SST
React/NextJS
Testing: Jest, testing-library react, Cypress, Storybook, k6
Build Tools: WebPack, Babel, Gulp
Other: KafkaJS, GraphQL, RxJS, Express
Databases: NoSQL, SQL
Some experience with Java, C#, Python
Design and handoff: Sketch, Zeplin, InDesign, Figma
CI/CD platforms and tools: Github Actions, Docker, Jenkins, Akamai
Version Control

Other skills

Currently learning: Improving leadership by working on multi-team initiatives
Leading architecture and design on large scale applications, including data architecture and planning a pathway for maturing data services

Career

Sainsbury’s

Lead Software Developer | Nov 2021 - Present

Mentor and lead teams, while guiding the overall architecture and direction of the applications in collaboration with commercial teams to deliver the highest value for our end-users.
Deliver critical or novel features across the front and back-end, documenting and sharing any lessons with the team to provide a base for them to work from where helpful.
Communicate with product teams, end-users, and other development teams to ensure all parties are on the same page, and any roadblocks or opportunities can be addressed early.
Drive mentorship and collaboration across the business through a variety of initiatives, including the guild of engineering, mentoring **programs, and solving issues in non-technical domains to reduce cost/improve efficiency in the wider business.

NowTV

Software Developer | Sep 2020 - Nov 2021

Build and iterate on an application across a full-stack to serve both internal stakeholders and customers across propositions using React, Redux, Typescript, Node, NoSQL, etc.
Lead improvements to testing by introducing and implementing react-testing-library, Cypress, and Loki for visual regression.
Build and manage a departmental module for multi-variant testing, along with the integration into my team codebase, currently at over 5m interactions weekly.