5-10-15 years of java developer career - warszawa jug 2015
TRANSCRIPT
![Page 1: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/1.jpg)
5-10-15 lat kariery Java developera od zera do bohatera i … z powrotem
Wojciech Seliga
Creative Commons Attribution-NonCommercial-ShareAlike 3.0
![Page 2: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/2.jpg)
32 years
![Page 3: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/3.jpg)
![Page 4: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/4.jpg)
Firstly, a digression
![Page 5: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/5.jpg)
Software is eating the world
![Page 6: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/6.jpg)
from code.org Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
Only in USA itself!
![Page 7: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/7.jpg)
No balance between supply and demand in the
IT job market
Photo by winnifredxoxo - Creative Commons Attribution 2.0
![Page 8: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/8.jpg)
It’s easy to earn a lot
Photo by Andrew Magill - Creative Commons Attribution 2.0
but earning a shitload means usually managerial path
![Page 9: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/9.jpg)
–Richard Stallman
“The computer industry is the only industry that is more fashion-driven than
women's fashion.”
![Page 10: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/10.jpg)
Photo by Hartwig HKD - Creative Commons Attribution-NoDerivs 2.0
![Page 11: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/11.jpg)
years0
![Page 12: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/12.jpg)
• Popular (unis, internet, literature, open source, free)
• Cross-platform
• Relatively idiot proof
• Good (free) tools
• Good job market (salaries)
• Sexy???
Why Java?
![Page 13: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/13.jpg)
• The language rather simple and easy to learn, slowish in some applications
• Well, it’s quite backward and I cannot boost my ego with fancy idioms; a lot of crap in the language (backward compatibility at all cost…)
• Easy to (re)write lots of code (ideally from scratch), yeah!!!
First Java thoughts and behaviours
![Page 14: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/14.jpg)
• They often need to, but are afraid to ask
• Focus on how to write something tersely, neatly, in a geeky way
• Concentration on “I” - their own education, benefits, perspective, feelings
![Page 15: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/15.jpg)
// an awesome trick from // http://stackoverflow.com/questions…. // which allows us to make it way! faster.
// the code follows here ...
![Page 16: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/16.jpg)
Picture by Patrick Barry CC BY SA 2.0
“They are stupid.They have fucked up
this code”
![Page 17: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/17.jpg)
Focus on low level code quality• naming convention, • whitespaces, • checkstyle rules
• unit test coverage, • some low level metrics
![Page 18: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/18.jpg)
Predictions provided quickly, optimistically and eagerly
(rule of thumb)
![Page 20: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/20.jpg)
![Page 21: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/21.jpg)
![Page 22: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/22.jpg)
I call them juniors and (later)
grown-up juniors (mids)
![Page 23: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/23.jpg)
The most numerous group
![Page 24: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/24.jpg)
“How” age
![Page 25: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/25.jpg)
![Page 26: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/26.jpg)
years5
![Page 27: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/27.jpg)
• Quite verbose and explicit language actually makes it easier to understand and maintain the code
• Language supports the understanding that coding is about “write once, read many times”
• Remembering when writing code that it will be read 100x more often
• Backward compatibility is not that bad after all…
Java afterthoughts and behaviours
![Page 28: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/28.jpg)
• They need to ask others more seldom, but still are reluctant as it if would reveal their weakness
• “We and Them Language” (devs vs. customers/users or “the business”/management)
• Concentrated on the product (my baby) and the domain
![Page 29: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/29.jpg)
// it's safe to apply a simplified formula // and thus reduce the complexity // from O(n) into O(log(n)), which does help // a lot for long-haul flights.
// the code follows here ...
![Page 30: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/30.jpg)
Picture by Patrick Barry CC BY SA 2.0
“This code looks broken. Let’s see if we
can fix it.”
![Page 31: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/31.jpg)
Picture by Patrick Barry CC BY SA 2.0
Use The Force, Read The Source
UTSL
Use the Source, Luke
![Page 32: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/32.jpg)
Focus on higher level code quality
• correct design • consistency • adherence to requirements
• functional test coverage • security • maintainability
![Page 33: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/33.jpg)
• provide predictions more carefully
• involve others
• think about happy and unhappy paths
• try to predict unpredictable
![Page 34: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/34.jpg)
Knowledge depth
T-shaped man
![Page 35: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/35.jpg)
![Page 36: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/36.jpg)
![Page 37: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/37.jpg)
I call them seniors
![Page 38: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/38.jpg)
Seniors assume responsibility
![Page 39: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/39.jpg)
The group where most of us consider themselves to belong
And where the majority stops…
![Page 40: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/40.jpg)
“What” age
![Page 41: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/41.jpg)
![Page 42: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/42.jpg)
years10
![Page 43: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/43.jpg)
• Quite verbose and explicit language actually makes it easier for newbies to pick up modules of non-trivial size and understand them
• Good debuggers, stack traces, thread/heapdumps and diagnosis tools are life savers.
• Backward compatibility (maybe not 10+ years back…) is a really good thing in the wild (Scala, I am looking at you…)
Further afterthoughts about Java
![Page 44: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/44.jpg)
• They ask questions often, do not feel vulnerable
• “It depends” guys
• “We together” language (his dev team + business/management + customers/users)
• Concentration on their team and the users
![Page 45: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/45.jpg)
// Because JAA aviation rules allow // a simplified check here, together with // aircraft performance department we decided // (look at http://wiki....) // to use a simplified formula which allows us // to reduce O(n) complexity into O(log(n)) // and thus make it acceptably fast // for long-haul flights.
// the code follows here ...
![Page 46: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/46.jpg)
Picture by Patrick Barry CC BY SA 2.0
“This code looks strange. Let’s find out why they decided to
implement it in this way”
![Page 47: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/47.jpg)
• Fitting into the big picture
• Response to Market Trends
• Discovering real (often hidden) problems
• Addressing business risks
• Usability
• User adoption
• Upgrades/migrations
• Future usage growth
• Constant Learning
![Page 48: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/48.jpg)
Feedback Loop
Mentors
Customers
Users
CI
CD
TDD
DevOps
Bug-fixing
Code Review
Release Cycle
Experiments
![Page 49: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/49.jpg)
Great Team Player != Yes Man
![Page 50: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/50.jpg)
The ability to say “no” is the sign of true professionalism
Picture by Stephen Almond, CC BY-SA 3.0
![Page 51: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/51.jpg)
• very reluctant to provide any estimations upfront
• eager to operate with ranges and probability
• narrow down the estimates along the way
Picture by FalseReflex, CC 3.0 BY-NC
![Page 52: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/52.jpg)
–Niels Bohr
“Prediction is very difficult, especially about the future”
![Page 53: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/53.jpg)
PI-shaped man
![Page 54: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/54.jpg)
Eat like a bird and poop like an elephantGuy Kawasaki
Photo by Megan Coughlin - CC BY-ND 2.0 Photo by blmiers2 - CC BY-NC-SA 2.0
![Page 55: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/55.jpg)
10000hours
![Page 56: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/56.jpg)
8 hours per day
5.5 years
![Page 57: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/57.jpg)
14.7 years3 hours per day
Meetings Procrastination
Processes Methodology Overhead
E-mails
![Page 58: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/58.jpg)
![Page 60: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/60.jpg)
I call them leaders and/or principals
![Page 61: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/61.jpg)
The group where most of us aspire to belong, but
many will never be
![Page 62: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/62.jpg)
“Why” age
![Page 63: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/63.jpg)
![Page 64: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/64.jpg)
years15
![Page 65: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/65.jpg)
• It’s a truly powerful platform. The language itself hasn’t really changed, but the whole ecosystem has changed tremendously!
• Amazing tools!
• No serious successor today for enterprises
• Java 8 finally brought well balanced language changes
Current afterthoughts about Java
![Page 66: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/66.jpg)
Focus on true customer needs, people around them and their growth
![Page 67: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/67.jpg)
Picture by Patrick Barry CC BY SA 2.0
“Wow, such an unusual code. I didn’t think about it in this way. Maybe I was wrong…”
![Page 68: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/68.jpg)
• Noticing and predicting the changes of the trends
• Creating new trends
• ???
![Page 69: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/69.jpg)
PiPi-shaped Man
![Page 70: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/70.jpg)
I call them unicorns
![Page 71: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/71.jpg)
“With whom” age
![Page 72: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/72.jpg)
Seniority - summed up
Focus Technology ProductSolving
problemCustomer
Defining the right problem
Needsassistance
Independent Teachingothers
Impacting the company
Technical capability
Quality Code L&FLow Level
System DesignUsability
ExtensibilityArchitecture
Maintainability
Technical innovation Passive
LocalIntroduction
TeamBuy-in
Company Community
Junior Mid Senior Principal
Knowledge Span
Fragments of a single stack
Most of thestack, some element
of other stacks
Complete stackand a lot of elements
of other stacks
Various stacks(deeply!)
Bugs Surprised Disappointed Expecting Leveraging
![Page 73: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/73.jpg)
Seniority - cont.
WatchingQuestioning& proposing
Changingteammates
Changing company
Process Improvement Change Agent
Big Picture Doesn’t careor learning
System/Product understanding
Domainunderstanding
Domain expert(innovation)
Stance Arrogant “Socrates”Open toCriticismCritical
Typical Experience
1K - 5K hours 3K - 12K hours 7K-20K hours 15K+ hours
Junior Mid Senior Principal
Teaching/ mentoring
Receiver Interns & Juniors Whole team All people(also outside)
Estimation Eager & Naive CarefulReluctantPessimistic
IterativeNarrowing
Communication Team Simplifies; removes need, focuses on customers
Notices and removes comms bottlenecks via processesCross-Team
![Page 74: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/74.jpg)
Seniority - coding passionJunior
Application Code
MidReusable Libraries
Senior
Reusable Frameworks
Principal
Buy over Build…
LoC
![Page 75: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/75.jpg)
A few closing thoughts
![Page 77: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/77.jpg)
Yes, you can!
![Page 78: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/78.jpg)
–Heraclitus
“There is nothing permanent except change.”
![Page 79: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/79.jpg)
Don’t concentrate on mastering only a technology
Learn to learn constantly
![Page 80: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/80.jpg)
Summary• Juniors assume other people ignorance, principals assume
their own ignorance
• Java as a platform and a language is far from dead
• Mastering only Java puts you in a rut. A rut turns silently into a grave. Overheated job market is your secret enemy - it’s too easy to rest on laurels.
• After 32 years of coding, I still know nothing
![Page 81: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/81.jpg)
Technical Skills
Communication Skills
![Page 82: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/82.jpg)
![Page 83: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/83.jpg)
–Mahatma Gandhi
“Live as if you were to die tomorrow. Learn as if you were to live forever.”
![Page 84: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/84.jpg)
Software is eating the world
Are we - software developers - aware of this responsibility?
Aren’t we spoiled too much to feel this responsibility?
Are we mature enough to bear this responsibility?
Are we learning enough to succeed?
![Page 85: 5-10-15 years of Java developer career - Warszawa JUG 2015](https://reader030.vdocument.in/reader030/viewer/2022032613/58778d7a1a28ab0f778b49a9/html5/thumbnails/85.jpg)
Questions?@wseliga We are
hiring
in Gdańsk!
Shameless plug