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Practicalli

An engineer with a wide range of commercial & community experiences over the last 25 years.

  • Consultancy: analysis, architecture, design & implementation embedded with customers
  • CTO: developing the technical capability of the business for early stage startup companies
  • Developer advocacy & Community Management - enabling developers to use products, tools and languages effectively
  • Engineering practices coach: adoption of agile and lean principles & practices to ingrain an effective process
  • Product development: on a wide range of products and services across many industries
  • Technical team management: mentor, coach and evolve teams effectively
  • Tech support team management: created effective support teams & capability, active on support duties
  • Technical training: products, programming langugages, design principles, software development processes
  • Tech writing: commercially for technical & non-tech audiences and Open Source projects, e.g. Practical.li

Skills & Tools

My career includes large organisations (Citi, Salesforce) and early to late stage startups within Fintech and Data Science companies. Most recently working with a Berlin Fintech startup as a Machine Learning Platform Architect, developing data transformation services as well as evolving organisational and engineering practices.

I am the founder of Practicalli which provides community educational resources for software engineering, with a focus on Clojure and common development tooling. The work is done in personal time and includes freely available videos and books on Clojure and ClojureScript development, guiding those interested in building services with the powerful, elegant and fun Clojure language.

Practicalli logo and name Practicalli Clojure REPL workflow banner

I have invested time over the last decade to supporting people in the London developer community as well as many online communities. I have had the pleasure of organising many hundreds of events for the London Clojurians community. I've also helped run 12 ClojureBridge London events, supporting people from under-represented groups as they start their journey into the software industry.

In my spare time I love to cycle and in 2019 I cycled 1,000 miles (1,600km) across Britain in 9 days and raise thousands of pounds for charity.

Sponsor Practicalli

Sponsor practicalli-johnny

All sponsorship funds are used to support the continued development of Practicalli series of books and videos, although most work is done at personal cost and time.

Thanks to Cognitect, Nubank and a wide range of other sponsors from the Clojure community for your continued support

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Practicalli Johnny's Projects

.github icon .github

Community Health default files for all repositories owned by practicalli-john

2020-brickhack icon 2020-brickhack

Flow fields implemented in Clojure with Quil. Demoed at Brickhack 6

4clj-el icon 4clj-el

Emacs minor-mode for interacting with 4clojure problems.

4clojure icon 4clojure

An interactive problem website for learning Clojure

advent-of-code-2018 icon advent-of-code-2018

Discussions on solving the 2018 Advent of Code challenges - https://adventofcode.com/

antq icon antq

Point out your outdated dependencies.

app-tutorial icon app-tutorial

Comprehensive tutorial for the pedestal-app library. https://github.com/pedestal/pedestal

awesome-ai-ml-dl icon awesome-ai-ml-dl

Awesome Artificial Intelligence, Machine Learning and Deep Learning as we learn it. Study notes and a curated list of awesome resources of such topics.

cajus-nfnl-fork icon cajus-nfnl-fork

A curvy and juicy neovim configuration following the "Keep it simple!" design principle, but using nfnl instead of aniseed.

cds icon cds

A collection of docs for Clojure, including tutorials, guides, and cookbooks. Various authors.

cheque-parser icon cheque-parser

Exercise to parse a number and return the text representation (in English) as if for a cheque.

cider icon cider

The Clojure Interactive Development Environment that Rocks for Emacs

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