Oliver Jumpertz

I'm a Software Engineer / Software Architect working in FinTech and a huge lover of web technologies. How can I help you? Oh, I nearly forgot to tell you: You are awesome!

Germany Joined on Aug 29, 2019

Work

Software Architect

Oliver Jumpertz

Feb 7

The Ultimate Smart Contract Developer Roadmap

#web3 #solidity #roadmap

9 min read

JavaScript Quick Tip: Quickly Filter Out All Falsy Values From An Array

You are right but it can hurt readability. Try immutable-js,...

Jun 12 '21

Your Guide To Computer Science Fundamentals

Thank you a lot, my friend! 💛🙏🏼

May 8 '21

An Introduction To Blockchain Technology

It depends on who controls the blockchain. If it is a public ...

Mar 4 '21

An Introduction To Svelte

Glad you liked it! I think it's currently a breath of fresh a...

Feb 6 '21

How The Abstract Equality Comparison (==) In JavaScript Works

I'm glad it helps you! ❤🙏🏼

Jan 2 '21

How AWS Lambda Works Under The Hood

Okay, yes, I wasn't clear enough on that one, but I also didn...

Dec 23 '20

How AWS Lambda Works Under The Hood

Hey David, thank you very much! The /tmp folder is permanent...

Dec 23 '20

How AWS Lambda Works Under The Hood

It's pretty difficult, if not impossible to make that happen....

Dec 22 '20

View all 26 comments

Oliver Jumpertz

Jan 1

Thirteen Incredible GitHub Repositories To Leverage Your Blockchain Learning

#blockchain #web3

5 min read

Oliver Jumpertz

Dec 21 '21

10 Important Array Methods In JavaScript Explained

#javascript

12 min read

Oliver Jumpertz

Aug 23 '21

Why talking about your current salary with recruiters and in interviews is a horrible idea

#interview #techinterview

6 min read

Oliver Jumpertz

Aug 5 '21

Exposing your greatest weakness in an interview

#interview #techinterview

4 min read

Oliver Jumpertz

Aug 3 '21

That one obvious interview question that can cost you some nerves

#interview #techinterview

4 min read

Oliver Jumpertz

Aug 1 '21

How to react when asked to rate your skills in an interview

#interview #techinterview

6 min read

Oliver Jumpertz

Jul 30 '21

How to tackle the dreaded question "Why should we hire you?" in your next interview

#interview #techinterview

6 min read

Oliver Jumpertz

Jul 27 '21

You might undersell yourself by giving yourself the wrong title

#interview #techinterview

3 min read

Oliver Jumpertz

Jul 23 '21

That one common interview question most interviewees hate

#interview

6 min read

Oliver Jumpertz

Jul 20 '21

One of the most important interview questions many interviewees fail to answer correctly

#interview #techinterview

6 min read

Oliver Jumpertz

Jul 12 '21

React's useEffect Hook

#react #javascript

3 min read

Oliver Jumpertz

Jul 6 '21

An Introduction To WebAssembly

#webassembly

4 min read

Oliver Jumpertz

Jun 28 '21

The 10 Most Valuable Lessons I Learned As A Developer

#personal #growth #selfimprovement #programming

8 min read

Oliver Jumpertz

Jun 14 '21

How To Set Up A Solidity Project And Create Your First Smart Contract

#solidity #smartcontract #blockchain

47 1

14 min read

Oliver Jumpertz

Jun 13 '21

Solidity Quick Tip: Efficiently Swap Two Variables

#solidity #blockchain #smartcontract

5 1

2 min read

Oliver Jumpertz

Jun 11 '21

JavaScript Quick Tip: Quickly Filter Out All Falsy Values From An Array

#javascript #typescript

11 4

2 min read

Oliver Jumpertz

Jun 11 '21

JavaScript Quick Tip: Make Function Arguments Required With Default Parameters

#javascript #typescript

2 min read

Oliver Jumpertz

Jun 10 '21

JavaScript Quick Tip: Quickly Get All Unique Values From An Array

#javascript #typescript

2 min read

Oliver Jumpertz

Jun 4 '21

JavaScript Quick Tip: The Nullish Coalescing Operator

#javascript #typescript

2 min read

Oliver Jumpertz

May 29 '21

JavaScript Quick Tip: Create A Cancelable Promise Delay

#javascript

2 min read

Oliver Jumpertz

May 5 '21

Your Guide To Computer Science Fundamentals

#computerscience #fundamentals

9 3

6 min read

Oliver Jumpertz

Apr 30 '21

Distributed Consensus - Proof of Stake

#blockchain #crypto #algorithms

3 min read

Oliver Jumpertz

Apr 30 '21

Distributed Consensus - Proof-of-Work

#blockchain #cryptocurrency #algorithms

4 min read

Oliver Jumpertz

Mar 6 '21

6 Tips To Improve Your Review Process

#softwaredevelopment #softwareengineering #codereview

3 min read

Oliver Jumpertz

Feb 27 '21

An Introduction To Blockchain Technology

#blockchain #introduction #overview

8 2

6 min read

Oliver Jumpertz

Feb 7 '21

Want To Get Hired? - Optimize Your LinkedIn Profile

#jobsearch #codenewbie

7 1

3 min read

Oliver Jumpertz

Feb 6 '21

An Introduction To Svelte

#javascript #svelte #webdev

47 3

4 min read

Oliver Jumpertz

Feb 5 '21

Data Science And Machine Learning In JavaScript

#javascript #datascience #machinelearning

2 min read

Oliver Jumpertz

Feb 4 '21

An Introduction To The Jamstack

#javascript #jamstack #webdev

4 min read

Oliver Jumpertz

Jan 24 '21

An Introduction To Rust

#rust #programming #introduction #codenewbie

4 min read

Oliver Jumpertz

Jan 10 '21

Never Answer What Your Current Salary Is In An Interview - Here Is Why

#interview #generaladvice #interviewing #jobhunt

2 min read

Oliver Jumpertz

Jan 8 '21

The Moving Average (Simple And Exponential) - Theory, Math, And Implementation In JavaScript

#javascript #finance #math

8 min read

Oliver Jumpertz

Jan 6 '21

Simple Linear Regression - Theory, Math, And Implementation In JavaScript

#javascript #datascience #howto #codenewbie

7 min read

Oliver Jumpertz

Jan 2 '21

How The Abstract Equality Comparison (==) In JavaScript Works

#javascript #typescript #codenewbie

9 3

6 min read

Oliver Jumpertz

Dec 31 '20

DIP - The Dependency Inversion Principle

#cleancode #programming #codenewbie #solid

3 min read

Oliver Jumpertz

Dec 31 '20

ISP - The Interface Segregation Principle

#cleancode #codenewbie #programming #solid

3 min read

Oliver Jumpertz

Dec 31 '20

LSP - The Liskov Substitution Principle

#cleancode #programming #codenewbie #solid

3 min read

Oliver Jumpertz

Dec 31 '20

OCP - The Open-Closed Principle

#cleancode #codenewbie #programming #solid

3 min read

Oliver Jumpertz

Dec 30 '20

SRP - The Single Responsibility Principle

#cleancode #solid #codenewbie #programming

3 min read

Oliver Jumpertz

Dec 29 '20

Indenting JSON.stringify’s Output

#javascript #codenewbie #programming #howto

2 min read

Oliver Jumpertz

Dec 29 '20

7 Steps To Follow During Your System Design Interview To Help You Ace That Round

#interview #systemdesign #howto #systemdesigninterview

7 min read

Oliver Jumpertz

Dec 28 '20

DRY - Don’t repeat yourself

#cleancode #codenewbie #programming #javascript

3 min read

Oliver Jumpertz

Dec 23 '20

Building A Containerized Lambda Function

#aws #javascript #serverless

6 min read

Oliver Jumpertz

Dec 22 '20

A Gentle Introduction To Kubernetes

#kubernetes #cloudnative #cloudskills

6 min read

Oliver Jumpertz

Dec 21 '20

How AWS Lambda Works Under The Hood

#aws #cloud #faas #lambda

98 8

4 min read

Oliver Jumpertz

Jun 19 '20

XOR, bitwise XOR and using it to solve an algorithm challenge

#typescript #tutorial #javascript

5 min read

Oliver Jumpertz

Jun 18 '20

Setting up Jenkins to handle GitHub Pull Requests

#devops

10 1

9 min read

Oliver Jumpertz

Jun 11 '20

Making good use of // @ts-expect-error in TypeScript

#typescript #tutorial

17 1

4 min read

Oliver Jumpertz

Sep 21 '19

Using multiple working trees in Git

#git #tutorial #productivity

95 6

3 min read

Oliver Jumpertz

Sep 15 '19

Building a project with TypeScript, Express, Mocha and Chai

#programming #typescript #tutorial

44 2

7 min read

Oliver Jumpertz

Sep 2 '19

Try not to clutter your git history

#git

13 min read

Oliver Jumpertz

Aug 31 '19

You should consider adding more detail to your commit messages

#git #programming

54 4

7 min read

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Recent comments

JavaScript Quick Tip: Quickly Filter Out All Falsy Values From An Array

Your Guide To Computer Science Fundamentals

An Introduction To Blockchain Technology

An Introduction To Svelte

How The Abstract Equality Comparison (==) In JavaScript Works

How AWS Lambda Works Under The Hood

How AWS Lambda Works Under The Hood

How AWS Lambda Works Under The Hood