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<!DOCTYPE html>
<html>
<head>
<title>How to become a better programmer</title>
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<textarea id="source">
class: center, middle
# How To Become a Better Programmer
*A journey plan from beginner to senior and beyond.*
---
class: center
# Agenda
**→ Introduction**
Software development
Human skills
Strategic skills
Tactical skills
Value
Feedback loops
Summary
Resources
---
class: center
# Introduction
### Juha Heljoranta
*Software Crafter with over 20 years of experience.*
[[email protected]](mailto:[email protected]) | [https://fi.linkedin.com/in/juha-heljoranta](https://fi.linkedin.com/in/juha-heljoranta)
### Bytecraft Oy
*Software Consulting company found around Software Crafter ideology.*
[https://bytecraft.fi/](https://bytecraft.fi/)
[[email protected]](mailto:[email protected]) | [https://www.linkedin.com/company/bytecraftoy](https://www.linkedin.com/company/bytecraftoy)
---
class: center, middle
*Each journey will be different.*
*What follows is our take on what kind of things journey to mastery might contain.*
---
class: center
# Agenda
Introduction
**→ Software development**
Human skills
Strategic skills
Tactical skills
Value
Feedback loops
Summary
Resources
---
# More than programming
--
Developer role is not only about programming.
--
It is much more.
--
* Being a good team member.
--
* Courage to stand up.
--
* Ethics and responsibility.
--
* Desire to learn and teach new things.
--
* Steadily adding value while minimizing waste.
---
# Software development
--
There are various different
- activities,
- requirements, design, testing, etc.
--
- paradigms,
- OO, FP, etc.
--
- models,
- agile, waterfall, etc.
--
- frameworks,
- Scrum, Kanban, etc.
---
# Software development
There are various different (cont.)
- methodologies,
- DevOps, XP, etc.
--
- disciplines,
- documentation, project management, UX, etc.
--
- practices and
- CI, DDD, TDD, etc.
--
- tools
- compilers, IDEs, modeling, etc.
---
## DevOps
<!--
@startmindmap devOpsRolesAttributes
* DevOps
** Flexibility
** Observability
** Reliability
** Securability
** Testability
** Scalability
left side
** Architecting
** Developing
** Automating
** Deploying
** Operating
@endmindmap
-->
Emily Freeman's
[model](https://siliconangle.com/2021/09/29/devops-dummies-author-emily-freeman-introduces-revolutionary-model-modern-software-development-awsq3/ "revolutionary model for modern software development")
which has roles and cross-cutting "-ilities" for quality attributes.
---
# Software development
<div style="text-align: center; font-style: italic">
<div style="padding:3em;padding-left:12em;padding-right:12em">
Understanding what's effective or not in any given situation
requires a vast amount of expertise and experience and is highly
context-sensitive.
</span>
</div>
---
class: center
# Agenda
Introduction
Software development
**→ Human skills**
Strategic skills
Tactical skills
Value
Feedback loops
Summary
Resources
---
# Human skills
--
We are social beings.
--
We work in teams.
--
We work with the customer.
--
We communicate and interact.
--
This is not to say that one needs to be "people person" or to have excellent social skills.
--
When we talk about human skills we mean it in very broad sense including soft skills and life skills.
--
**Skills that help us to succeed in our daily work** such as:
communication, team work, compassion, listening,
writing, drawing, negotiation, problem solving,
nonviolent communication, psychological safety, etc.
--
*Poor communication is the primary contributor to project failures.*
---
## Positive psychology
--
### Values in Action Inventory of Strengths (VIA)
--
* Wisdom and Knowledge (viisaus ja tieto)
> creativity (luovuus), curiosity (uteliaisuus), open-mindedness/judgement (arviointikyky), love of learning (oppimisen ilo), perspective (näkökulmanottokyky)
--
* Courage (rohkeus)
> bravery (rohkeus (urheus)), persistence/perseverance (sinnikkyys), integrity/honesty (rehellisyys), zest (innostus), (bonus: sisu)
--
* Humanity (inhimillisyys)
> love (rakkaus), kindness (ystävällisyys), social intelligence (sosiaalinen älykkyys), (bonus: compassion (myötätunto))
---
## Positive psychology
### Values in Action Inventory of Strengths (VIA)
cont.
* Justice (oikeudenmukaisuus)
> teamwork (ryhmätyötaidot), fairness (reiluus), leadership (johtajuus)
--
* Temperance (kohtuullisuus)
> forgiveness and mercy (anteeksiantavuus), humility (vaatimattomuus), prudence (harkitsevaisuus), self control (itsesäätely)
--
* Transcendence (henkisyys)
> appreciation of beauty and excellence (kauneuden arvostus), gratitude (kiitollisuus), hope (toiveikkuus), humor (huumorintaju), spirituality (hegellisyys)
---
# Human skills
<div style="text-align: center; font-style: italic">
<div style="padding:3em;padding-left:12em;padding-right:12em">
To simplify a little:</br></br><b>how to be an effective team member</br>and the very best version of your self.</b>
</span>
</div>
---
class: center
# Agenda
Introduction
Software development
Human skills
**→ Strategic skills**
Tactical skills
Value
Feedback loops
Summary
Resources
---
# Strategic skills
--
*Powerful high level traits, tools, techniques and knowledge. Also known as wisdom, how to develop software and apply tactical skills effectively.*
--
Some examples:
* Software development process
* Waterfall
* SAFE
* Extreme Programming
* Kanban
* Scrum
* Lean
* DevOps
---
cont.
* Domain Driven Design
* Test Driven Development
* Patterns in Enterprise Software
* Cynefin
* Impact mapping
* Event Storming
* Software design
* Abstraction, Encapsulation, Modularisation, Hierarchy, Cohesion, Coupling, Complexity
* Software architectures
* Event driven, Layered, Monolith, Microservice, Actor, etc.
* Distributed computing
* Automation
* Testing
* State management
* Debugging
* Monitoring
* Instrumenting
* Side-effect handling
* Error handling
* KISS, YAGNI
* UX design
---
class: center
# Agenda
Introduction
Software development
Human skills
Strategic skills
**→ Tactical skills**
Value
Feedback loops
Summary
Resources
---
## Tactical skills
*Tactical skills are the "bread and butter" of software development.
They are typically technical and low-level know-how. It is advisable
to expose oneself to a broad spectrum of these.*
--
Some examples:
* Issue tracking
* Technical documentation tools
* Visualization / diagram tools
* Persistence
* Sql
* Nosql
* Newsql
* Key-value
* Column
* Graph
* Messaging
* CAP theorem
* ACID
---
cont.
* Programming
* Functional programming
* Object oriented programming
* Object-relational mapping
* Regular expressions
* Actor model
* Infrastructure
* Operating systems
* IDEs / editors
* Build tools
* Version control
* Infrastructure as code / deployment tools
* CI / CD
* Virtualization
* Virtual machines
* Containers
* Cloud computing
* Computer security
* Threat modeling
* OWASP
---
cont.
* Computer science
* Concurrency, parallelism, multithreading, asynchronism
* Algorithms and Data structures
* AI / ML
* Data Engineering / Science
* Programming language theory
* Parsers
* Abstract Syntax Tree
* Meta programming
--
Note, highly advanced tactical skills might lead to complex or hard to under to understand solutions. Clarity is better than cleverness.
---
class: center
# Agenda
Introduction
Software development
Human skills
Strategic skills
Tactical skills
**→ Value**
Feedback loops
Summary
Resources
---
# Value
--
Software is valuable when it saves money, makes money or protects revenue.
--
Software is valuable when it's ***easily modifiable***.
---
## Adding value
--
To add value, software usually has to be modified somehow.
--
Easily modifiable implies a short feedback loop where we can quickly observe the modifications, even in production environment.
--
Easy to change also implies quality, since if a change would cause a bug or other unexpected extra work the change was not easy, after all.
--
> **Easier to Change ⇒ Short Feedback Loop ⇒ Quality ⇒ Value**
--
Easily modifiable means to all developers in a team, including newish junior developers (with some gentle guidance, perhaps).
--
If making a change requires extensive experience about the project and senior developer skills, then the software is not easily modifiable.
--
Therefore, it is valuable to maintain or improve software so that it is ***easily modifiable***.
To put it slightly differently: keep technical debt at minimum and automate things.
---
class: center
# Agenda
Introduction
Software development
Human skills
Strategic skills
Tactical skills
Value
**→ Feedback loops**
Summary
Resources
---
# Feedback loops
--
Quick feed back is essential.
--
DevOps metrics, by Ferrix Hovi (Siili):
- Continuous learning.
- Delivery performance.
- Speed: Lead time & Deployment frequency.
- Quality: Mean time to recovery & Change fail rate.
- eNPS.
- Product success.
- NPS, KPIs, Revenue
- Data driven decisions.
---
class: center
# Agenda
Introduction
Software development
Human skills
Strategic skills
Tactical skills
Value
Feedback loops
**→ Summary**
Resources
---
# Summary
--
(1/3)
**Software development**</br> is a non-trivial in typical real-life project setting. It requires vast amount expertise and experience to know whats effective in any given situation.
--
**Human skills**</br> help us to succeed in our daily work.
This covers many skills such as empathy, communication, teamwork, etc.
--
**Strategic skills**</br> are powerful high level traits, tools, techniques and knowledge how to develop software.
For example, Test Driven Development, Domain Driven Design, Extreme Programming, etc.
--
**Tactical skills**</br> are technical and low-level know-how like programming languages. It is advisable
to expose oneself to a broad spectrum of these.
Balanced skill set with some specific focus areas is recommended.
---
# Summary
(2/3)
**Value**</br> means keeping software **easily modifiable** with short feedback loops and without defects or regressions.
*It's not the value of the feature but the lead time from feature request to production.*
--
**Feedback loops**</br>
are everywhere. Focus on what matters: continuous learning, delivery performance, product success and data driven decisions.
---
# Summary
(3/3)
**How to keep leveling up as a developer?**
--
- Constantly improve **tactical**, **strategic** and **human** skills.
--
- Beginners should focus more on tactical skills. Human skills emphasize usually later on career.
--
- **Easily modifiable** software is **valuable**. Keep it that way.
--
- Fast **feedback loops** are essential.
--
- Focus on the **basics** such as
- how to reason about code
- how to make code easy to test
- how to organize code base
---
class: center, middle
# Thank you!
---
# Resources
Books:
- The Pragmatic Programmer: Your Journey To Mastery, 20th Anniversary Edition by David Thomas and Andrew Hunt
- Clean Craftsmanship: Disciplines, Standards, and Ethics by Robert C. Martin
- Extreme Programming Explained: Embrace Change, 2nd Edition by Kent Beck and Cynthia Andres
- How to Win Friends & Influence People by Dale Carnegie
Internet:
- https://en.wikipedia.org/wiki/Software_development
- https://agilemanifesto.org/
- https://manifesto.softwarecraftsmanship.org/
- https://progression.fyi/
- https://www.reddit.com/r/ExperiencedDevs/comments/ygk6py/more_recent_alternatives_to_books_like_pragmatic/
- https://www.reddit.com/r/ExperiencedDevs/comments/ys12wf/succeeding_without_strong_opinions/
- https://www.reddit.com/r/ExperiencedDevs/comments/vyjo5z/what_are_some_traits_of_the_most_valuable/
- https://www.reddit.com/r/ExperiencedDevs/comments/11npqqi/what_type_of_bookscourses_has_revolutionized_your/
- https://en.wikipedia.org/wiki/Positive_psychology
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