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Barry O Sullivan

Lead Developer and Solutions Architect, I specialise in Event Sourcing, DDD and Event Driven systems. PHP and GoLang developer. Enjoys being a smart ass and having a nice whiskey.

Location Ireland Joined Joined on  Personal website https://barryosull.com/ github website twitter website

Education

MSc in Computer Science, Trinity College, Dublin

Work

Lead Developer and Solutions Architect at Contractor

Estimating software: How to deal with requests for estimates
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Estimating software: How to deal with requests for estimates

#estimates #productivity #communication
21
Comments
7 min read

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Template Driven Development: Why it doesn't work
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Template Driven Development: Why it doesn't work

#architecture #design #training
18
Comments 4
7 min read
Introducing DDD to your Company
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Introducing DDD to your Company

#ddd #architecture #design
47
Comments 1
9 min read
Folder Structure and Frameworks: What is exerting control?
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Folder Structure and Frameworks: What is exerting control?

#ddd #architecture #softwaredesign
52
Comments 2
5 min read
Managing projectors is harder than you think
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Managing projectors is harder than you think

#projectors #cqrs
19
Comments
6 min read
Domain Driven Design for Everyone Else
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Domain Driven Design for Everyone Else

#ddd #productivity #learning
236
Comments 11
6 min read
Communication styles - Working effectively as a team
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Communication styles - Working effectively as a team

#productivity #communication #leadership #brainstorming
128
Comments 12
5 min read
Acceptance testing your PHP app with ease
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Acceptance testing your PHP app with ease

#tdd #php #acceptancetests
39
Comments
5 min read
Immediate vs eventual consistency
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Immediate vs eventual consistency

#eventsourcing #architecture #eventdriven #eventualconsistency
42
Comments 3
6 min read
Writing a DSL parser using PegJS
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Writing a DSL parser using PegJS

#dsl #parsing #pegjs
22
Comments 5
4 min read
Projection Building Blocks: What you'll need to build projections
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Projection Building Blocks: What you'll need to build projections

#cqrs #projections #php
36
Comments 9
8 min read
Write DSLs and Code Faster
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Write DSLs and Code Faster

#dsl #parsing #customlanguage
19
Comments 8
4 min read
Event Granularity: Modelling events in event driven applications
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Event Granularity: Modelling events in event driven applications

#events #design #distributedsystems
55
Comments 2
6 min read
Developer deprogramming: Getting started in Event Sourcing
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Developer deprogramming: Getting started in Event Sourcing

#eventsourcing #ddd #crud #mistakes
33
Comments 11
6 min read
Immediate Consistency in Event Sourcing
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Immediate Consistency in Event Sourcing

#eventsourcing #webdev #php #constraints
28
Comments 7
8 min read
Event Sourcing: What it is and why it's awesome
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Event Sourcing: What it is and why it's awesome

#eventsourcing #powerful #webdev #projections
326
Comments 73
9 min read
Messy Event Flows: Part 2 - What it should be
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Messy Event Flows: Part 2 - What it should be

#eventsourcing #eventstorming #remodelling #constraints
11
Comments 4
5 min read
Messy Event Flows: Part 1
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Messy Event Flows: Part 1

#eventsourcing #eventstorming #aggregateboundaries #problemorientated
11
Comments
5 min read
Notes from "Growing Object Oriented Software, Guided by Tests"
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Notes from "Growing Object Oriented Software, Guided by Tests"

#testing #tdd #software #book
14
Comments 2
5 min read
Cleaning up your codebase with a clean architecture
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Cleaning up your codebase with a clean architecture

#cleancode #layeredarchitecture #php #design
131
Comments 16
9 min read
Why I don't like traits
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Why I don't like traits

#php #traits #antipattern
18
Comments
3 min read
Hi, I'm Barry O Sullivan
barryosull profile

Hi, I'm Barry O Sullivan

#introductions
9
Comments
1 min read
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