Developer Joy - How great teams get s%*t done

Ad

Ad

Ad

Ad

Ad

Ad

Ad

Ad

Ad

Ad

Ad

Ad

DEVELOPER
How great teams get s%*t done
@svenpet
Sven Peters
DevOps Advocate
JOY

The last
10
years

The Cloud
Container
Microservices
Security &
Governance
You build it,
you run it.

DEVELOPER
COGNITIVE
LOAD

BACK<
Productivity
to

Bethlehem Steel
1898

Bethlehem Steel
Frederick
Winslow Taylor

Bethlehem Steel

Bethlehem Steel

Bethlehem Steel

400%
increase
Workers
only doing repetitive task
Productivity New roles
Managers
doing the thinking

years ago
125

Productivity
T-shirt
sizes
Story
points
Developer
Lines of
code
Issues to
done
Cycle
time
Deployment
frequency

Developer
10% more story points
20% faster pull request reviews
Thank you Taylor

DEVELOPER EXPERIENCE

BACK<
DevJ
to
oy

DEVELOPER JOY
Dev
Progress
Dev
Quality
Dev
Value

TECHNICAL
DEBT

of dev time used for
10%
of dev teams manage
42% TECHNICAL
DEBT

of dev time used for
10%
of dev teams manage
42% TECHNICAL
DEBT

It all starts out
nicely
package com.miguelcatalan.materialsearchview;
import android.app.Activity;
import android.widget....

It all starts out
nicely
/**
* Return true if search is open
*
* @return
*/
public boolean isSearchOpen() {
return mIsSear...

/**
* Return true if search is open
*
* @return
*/
public boolean isSearchOpen() {
return mIsSearchOpen;
}
/**
* Open Sear...

Your coding guidelines
caught this.

Your coding guidelines
caught this, right?

Team

Class names
Are CamelCase
Prefix private variables with underscore
Private variables
Single Responsibility Principal
A cla...

You’re doing
code reviews.

You’re doing
code reviews, right?

$export default function DateTimeSlider({ onChangeCallback, timeZone, time_min, time_max, autoUpdateSlider }: DateTimeSlide...$

$export default function DateTimeSlider({ onChangeCallback, timeZone, time_min, time_max, autoUpdateSlider }: DateTimeSlide...$

$export default function DateTimeSlider({ onChangeCallback, timeZone, time_min, time_max, autoUpdateSlider }: DateTimeSlide...$

Don’t be a jerk.

Who has been bullied by a jerk?

Jerks are the reason
people hate code reviews.

Team

Reviewer Author
ASSUME COMPETENCE
EXPLAIN REASONING
BE CONSTRUCTIVE

NO
BULLYING
DEVELOPER
JOY
Better Reviews

Team

Test

Test

Build & Test
TEST FAILED
Re-run Test
TEST PASSES
Create PR
.skip test
Add comment to PR
Flaky Test
Detector
Flaky Test
Fla...

DEBUG
FRUSTRATION
DEVELOPER
JOY
Better Tooling

Dev Flow
Code

Dev Flow
Code Build & Test Deploy
hours to minutes minutes to seconds

Review
Dev Flow
Code Build & Test Deploy
hours to minutes minutes to seconds
Review
days

Team

3 days
average from opening to merge a pull request

3 days
working on something else
and go back.

Open Pull Request
Fixing height of the screen
Open Pull Request
Adding user setting functionality
Open Pull Request
Optimi...

Open Pull Request
Fixing height of the screen
Open Pull Request
Adding user setting functionality
Open Pull Request
Optimi...

3 days
From
To
1.2 days

WAIT
TIME
DEVELOPER
JOY
Faster Reviews

Flow

Traffic Flow: 191 (vehicles per minute)

Traffic Flow: 235

Traffic Flow: 360

Traffic Flow: 1099

Autonomous
Teams
Feature A
Platform
Feature C
Feature B
Testing

Autonomous Teams Highly Aligned
Designer
Tester
Ops
Developer

Autonomous Teams Highly Aligned
Designer
Tester
Ops
Developer
Developer
Developer
Developer

Team

Devs Exploratory Test
Automated Test A
Q

Devs Exploratory Test
Automated Test A
Q 🍹

Devs
Exploratory Test
Automated Test
Quality
Assistance
A
Q

Feature Test
Strategy
QA Engineer

Test Automation
Platform
Software Engineer on Test

DEVELOPER
COGNITIVE
LOAD
DEVELOPER
JOY
Quality Assistance

What users imagine

What users imagine

User stories
Running
software
Product Developers
Interviews
Research
Measurements
Experiments
Prototypes

Team

Make
Create

Make
Create
Wonder
Problem

Wonder
Problem
Explore
Solution
Make
Create
Impact
Measure

Wonder
Problem
Explore
Solution
Make
Create
Impact
Measure
Developer
Product

Goals, Signals,
Measures
Demos
Prototypes
Project kick off
Wonder Explore Make Impact

Demos

DEMO
OPEN
Everyone can join
OUTCOME
Show customer
value
CELEBRATE
Recognise great
work
GROUP
THINKING
Challenge the
soluti...

REWORK
FRUSTRATION
DEVELOPER
JOY
Involve Everyone

What would
Taylor say?

If you can’t measure it,
you can’t improve it.
Peter Drucker

Time To Restore
Change Failure Rate
Start with DORA
Lead time for changes
Deployment Frequency

Ticket Cycle Time
From idea to deployment
How often do we deploy code to production
Deployment Frequency
Wait Time
Total o...

Ask your developers
Measurements
& Baselines

The Wallboard

The Wallboard problem

QUALITY
METRICS
Check
Ops
Weekly team ritual

Ask your developers CheckOps

GitHub
Good Day Project
M T T
W F M T T
W F
Activities / day
How good was your day?

Review Deploy
Idea Code
3 days 1 day 3 days 2 days
12 days
Plan

Software development is not a production line

Measure what is important,
don’t make important what
you can measure.
Robert McNamara

Measure & Baseline
Ask your developers

Measuring
Developer Joy
Speed to ship quality code
Waiting time
Execution independence
Access to tools, processes, and pra...

Measuring
Developer Joy
Speed to ship quality code
Waiting time
Execution independence
Access to tools, processes, and pra...

Measuring
Developer Joy
Speed to ship quality code
Waiting time
Execution independence
Access to tools, processes, and pra...

Measuring
Developer Joy
Speed to ship quality code
Waiting time
Execution independence
Access to tools, processes, and pra...

Measuring
Developer Joy
Speed to ship quality code
Waiting time
Execution independence
Access to tools, processes, and pra...

Measuring
Developer Joy
Speed to ship quality code
Waiting time
Execution independence
Access to tools, processes, and pra...

Measuring
Developer Joy
Speed to ship quality code
Waiting time
Execution independence
Access to tools, processes, and pra...

Measuring
Developer Joy
Speed to ship quality code
Waiting time
Execution independence
Access to tools, processes, and pra...

Measuring
Developer Joy
Speed to ship quality code
Waiting time
Execution independence
Access to tools, processes, and pra...

Measuring
Developer Joy
Speed to ship quality code
Waiting time
Execution independence
Access to tools, processes, and pra...

Speed to ship quality code
Waiting time
Execution independence
Access to tools, processes, and practices
Effort managing e...

Speed to ship quality code
Waiting time
Execution independence
Access to tools, processes, and practices
Effort managing e...

Satisfaction
Importance
Ramp up time
Wait time
Speed to ship
Managing code,
tools , pipelines
Access to tools
Execution in...

How is your
DEVELOPER JOY
bit.ly/developerjoy
?

Try to fix
things
DevEx
hack
20%
time
DevJoy
week
Include in
sprint

Try to fix
things
Spread
learnings
+

Measurements
Survey results

Survey results
Measurements

AUTONOMOUS
TEAMS

AUTONOMOUS
TEAMS
Fix things

AUTONOMOUS
TEAMS
Fix things

Dev
Progress
Dev
Quality
Dev
Value
Fix things

Dev
Progress
Dev
Quality
Dev
Value
DEVELOPER
JOY

Thank
you
DEVELOPER
Don’t forget to have fun.
JOY

Thank
you
bit.ly/developerjoy
@svenpet
DEVELOPER JOY