Data Scientist vs Data Engineer vs Data Analyst

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Remote (EMEA) Senior Data Analyst, Strategic Marketing Job at Deel.

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Best Resource to Learn Artificial Intelligence (AI) For Free 👇👇

https://ai.google/education/

https://t.me/aiesourcestp/16

https://www.udacity.com/course/intro-to-artificial-intelligence--cs271

https://i.am.ai/roadmap

https://microsoft.github.io/AI-For-Beginners

https://www.udemy.com/course/introduction-to-ai-for-business/

ENJOY LEARNING 👍👍

https://whatsapp.com/channel/0029VahGttK5a24AXAJDjm2R

These are the Top 5 Most Common SQL Questions for Data Engineering:

1. Total records after joining two tables on all types of joins
2. Rolling Sum and Nth salary based questions
3. Lag/Lead based questions e.g., consecutive months of increasing sales or YoY growth
4. Query to find employees who earn more than their managers
5. Removing duplicates from a table

Key Takeaways:
- Master window functions and joins
- Practice medium to hard SQL questions regularly

Getting good at SQL will pay off in the long run! 💪

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Power BI Learning Plan in 2025

|-- Week 1: Introduction to Power BI
| |-- Power BI Basics
| | |-- What is Power BI?
| | |-- Components of Power BI
| | |-- Power BI Desktop vs. Power BI Service
| |-- Setting up Power BI
| | |-- Installing Power BI Desktop
| | |-- Overview of the Interface
| | |-- Connecting to Data Sources
| |-- First Power BI Report
| | |-- Creating a Simple Report
| | |-- Basic Visualizations
|
|-- Week 2: Data Transformation and Modeling
| |-- Power Query Editor
| | |-- Importing and Shaping Data
| | |-- Applied Steps
| |-- Data Modeling
| | |-- Relationships
| | |-- Calculated Columns and Measures
| | |-- DAX Basics
| |-- Data Cleaning
| | |-- Handling Missing Data
| | |-- Data Types and Formatting
|
|-- Week 3: Advanced DAX and Data Modeling
| |-- Advanced DAX Functions
| | |-- Time Intelligence
| | |-- Iterators
| | |-- Filter Functions
| |-- Advanced Data Modeling
| | |-- Star and Snowflake Schemas
| | |-- Role-playing Dimensions
| |-- Performance Optimization
| | |-- Query Performance
| | |-- Model Performance
|
|-- Week 4: Visualizations and Reports
| |-- Advanced Visualizations
| | |-- Custom Visuals
| | |-- Conditional Formatting
| | |-- Interactive Elements
| |-- Report Design
| | |-- Designing for Clarity
| | |-- Using Themes
| | |-- Report Navigation
| |-- Power BI Service
| | |-- Publishing Reports
| | |-- Workspaces and Apps
| | |-- Sharing and Collaboration
|
|-- Week 5: Dashboards and Data Analysis
| |-- Creating Dashboards
| | |-- Pinning Visuals
| | |-- Dashboard Tiles
| | |-- Alerts
| |-- Data Analysis Techniques
| | |-- Drillthrough
| | |-- Bookmarks
| | |-- What-If Parameters
| |-- Advanced Analytics
| | |-- Quick Insights
| | |-- AI Visuals
|
|-- Week 6-8: Power BI and Other Tools
| |-- Power BI and Excel
| | |-- Excel Integration
| | |-- PowerPivot and PowerQuery
| | |-- Publishing from Excel
| |-- Power BI and R
| | |-- Using R Scripts in Power BI
| | |-- R Visuals
| |-- Power BI and Python
| | |-- Using Python Scripts
| | |-- Python Visuals
| |-- Power Automate and Power BI
| | |-- Automating Workflows
| | |-- Data Alerts and Actions
|
|-- Week 9-11: Real-world Applications and Projects
| |-- Capstone Project
| | |-- Project Planning
| | |-- Data Collection and Preparation
| | |-- Building and Optimizing the Model
| | |-- Creating and Publishing Reports
| |-- Case Studies
| | |-- Business Use Cases
| | |-- Industry-specific Solutions
| |-- Integration with Other Tools
| | |-- SQL Databases
| | |-- Azure Data Services
|
|-- Week 12: Post-Project Learning
| |-- Power BI Administration
| | |-- Data Governance
| | |-- Security
| | |-- Monitoring and Auditing
| |-- Power BI in the Cloud
| | |-- Power BI Premium
| | |-- Power BI Embedded
| |-- Continuing Education
| | |-- Advanced Power BI Topics
| | |-- Community and Forums
| | |-- Keeping Up with Updates
|
|-- Resources and Community
| |-- Online Courses (Coursera, edX, Udacity)
| |-- Books (The Definitive Guide to DAX, Microsoft Power BI Cookbook)
| |-- Power BI Blogs and Resources
| |-- GitHub Repositories
| |-- Power BI Communities (Microsoft Power BI Community, Reddit)

You can refer these Power BI Interview Resources to learn more:
https://t.me/dataanalysisresourcestp/27

Like this post if you want me to continue this Power BI series 👍♥️

Hope it helps :)

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REMOTE

Remote Frontend Engineer I (with Contentful experience) Job at Outliant

Fully Remote (Worldwide)

Apply Here:
https://kenyatrends.co.ke/h1qf

Global Tech Jobs Here👇
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Learn Data Science in 2025

𝟭. 𝗔𝗽𝗽𝗹𝘆 𝗣𝗮𝗿𝗲𝘁𝗼'𝘀 𝗟𝗮𝘄 𝘁𝗼 𝗟𝗲𝗮𝗿𝗻 𝗝𝘂𝘀𝘁 𝗘𝗻𝗼𝘂𝗴𝗵 📚

Pareto's Law states that "that 80% of consequences come from 20% of the causes".

This law should serve as a guiding framework for the volume of content you need to know to be proficient in data science.

Often rookies make the mistake of overspending their time learning algorithms that are rarely applied in production. Learning about advanced algorithms such as XLNet, Bayesian SVD++, and BiLSTMs, are cool to learn.

But, in reality, you will rarely apply such algorithms in production (unless your job demands research and application of state-of-the-art algos).

For most ML applications in production - especially in the MVP phase, simple algos like logistic regression, K-Means, random forest, and XGBoost provide the biggest bang for the buck because of their simplicity in training, interpretation and productionization.

So, invest more time learning topics that provide immediate value now, not a year later.

𝟮. 𝗙𝗶𝗻𝗱 𝗮 𝗠𝗲𝗻𝘁𝗼𝗿 ⚡️

There’s a Japanese proverb that says “Better than a thousand days of diligent study is one day with a great teacher.” This proverb directly applies to learning data science quickly.

Mentors can teach you about how to build a model in production and how to manage stakeholders - stuff that you don’t often read about in courses and books.

So, find a mentor who can teach you practical knowledge in data science.

𝟯. 𝗗𝗲𝗹𝗶𝗯𝗲𝗿𝗮𝘁𝗲 𝗣𝗿𝗮𝗰𝘁𝗶𝗰𝗲 ✍️

If you are serious about growing your excelling in data science, you have to put in the time to nurture your knowledge. This means that you need to spend less time watching mindless videos on TikTok and spend more time reading books and watching video lectures.

Join https://t.me/datascienceresourcestp for more

ENJOY LEARNING 👍👍

WhatsApp Channel: https://whatsapp.com/channel/0029VahGttK5a24AXAJDjm2R

𝐈𝐧𝐬𝐩𝐢𝐫𝐚𝐭𝐢𝐨𝐧 𝐢𝐬 𝐢𝐦𝐩𝐨𝐫𝐭𝐚𝐧𝐭 𝐢𝐧 𝐔𝐈 𝐝𝐞𝐬𝐢𝐠𝐧
since it allows designers to come up with new and unique concepts. It keeps designs fresh and relevant to current trends. Designers can create user-friendly and beautiful interfaces by taking inspiration from other designs.

𝐖𝐞𝐛𝐬𝐢𝐭𝐞𝐬 𝐟𝐨𝐫 𝐝𝐞𝐬𝐢𝐠𝐧 𝐢𝐧𝐬𝐩𝐢𝐫𝐚𝐭𝐢𝐨𝐧 ✨

𝐃𝐚𝐫𝐤 𝐃𝐞𝐬𝐢𝐠𝐧 : Dark Design uses dark backgrounds with light text, offering a modern look, reducing eye strain, and saving battery on OLED screens.

𝐌𝐨𝐛𝐛𝐢𝐧 : Mobbin is a design platform with a library of UI/UX patterns for trend exploration and inspiration.

𝐋𝐚𝐩𝐚 𝐍𝐢𝐧𝐣𝐚 : Lapa is a design inspiration platform featuring top landing page designs, Ul patterns, and web trends.

𝐋𝐚𝐧𝐝𝐛𝐨𝐨𝐤 : Land-book is a platform featuring curated website designs for creative inspiration. Explore layouts, typography, and trends.

Best Youtube Channels for UX/UI
https://t.me/designresourcestp/11

WhatsApp Channel:
https://whatsapp.com/channel/0029VahGttK5a24AXAJDjm2R

Color Resources for Designers

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Why to use Flutter?

I recently encountered a question with this kind of sublimation: "Flutter is an interesting thing. But. If it were in swift, then I would use it. But Dart is an inconvenient and unreadable language. And swift... Anyway, do you think I should make an app in Flutter, or make it in swift for iOS, and then hire a developer for Android?"

Let's not speculate about which language is more readable and better. Everyone has their own truth here. Let's say this: a language is a tool, a framework is a tool. For Flutter, you'll have to use Dart anyway, there's nothing you can do about it. But for business, for example, it doesn't make much difference whether you write on swift with pure iOS or on Flutter and Dart. It cares about making an app so that it can make money.

Of course, the business may care how much money it costs to hire a second development team if we made an iOS app in swift and now decide to add Android as well. It may also be concerned about the speed of development, and Flutter is much faster than other frameworks and tools. But these are all business factors, not the whims of developers. In the end, it is always necessary to rely on the needs of the business. Is it a priority to launch as quickly as possible? No platform-specific features? A small budget? All of these are red flags that you need to use Flutter (or something similar, albeit a little more expensive, but more native, like Xamarin).

I didn't understand it 100% myself. But recently I've been invited to business meetings with a client from time to time. The discussions there remind me: we're still writing a product, not just code. Yes, Flutter is a wonderful and handy thing. But sometimes it's more inconvenient and expensive to use than something native. So if the business suddenly say that it's time to move to Kotlin + swift, and it will be justified from the business point of view, then that's what you should do.

Building Better Apps 👉 https://t.me/mobiledevresourcestp/47

Business Idea

"Offer subscription-based services."
If you have a product or service people use regularly, turn it into a subscription model. For example, offer monthly financial consultation or exclusive crypto insights for a small fee. Subscriptions create steady, recurring revenue.

How long are coding interviews?
The phone screen portion of the coding interview typically lasts up to one hour. The second, more technical part of the interview can take multiple hours.

Where can I practice coding?
There are many ways to practice coding and prepare for your coding interview. LeetCode provides practice opportunities in more than 14 languages and more than 1,500 sample problems. Applicants can also practice their coding skills and interview prep with HackerRank.

How do I know if my coding interview went well?
There are a variety of indicators that your coding interview went well. These may include going over the allotted time, being introduced to additional team members, and receiving a quick response to your thank you email.

Free Havard Courses to Prepare for Interview: http://bit.ly/3F63MVZ

Best Resources for Tech Interviews: https://t.me/TechPsyche/458

More Interview Tips Here:
https://whatsapp.com/channel/0029VahGttK5a24AXAJDjm2R

--- Git Commands ---

🏗 git init | Initialize a new Git repository
🔄 git clone <repo> | Clone a repository
📊 git status | Check the status of your repository
➕ git add <file> | Add a file to the staging area
📝 git commit -m "message" | Commit changes with a message
🚀 git push | Push changes to a remote repository
⬇️ git pull | Fetch and merge changes from a remote repository

--- Branching ---

🌿 git branch | List branches
🌱 git branch <name> | Create a new branch
🔀 git checkout <branch> | Switch to a branch
🔧 git merge <branch> | Merge a branch into the current branch
🔄 git rebase <branch> | Reapply commits on top of another base branch

--- Undo & Fix Mistakes ---

🔙 git reset --soft HEAD~1 | Undo last commit but keep changes
🚫 git reset --hard HEAD-1 | Undo last commit and discard changes
⏪ git revert <commit> | Create a new commit that undoes changes from a specific commit

--- Logs & History ---

📜 git log | Show commit history
🌐 git log --oneline --graph --all | Pretty graph of commit history

--- Stashing ---

🎒 git stash | Save changes without committing
🎭 git stash pop | Apply stashed changes and remove them from stash

--- Remote & Collaboration ---

🌍 git remote -v | View remote repositories
📡 git fetch | Fetch changes without merging
🕵️ git diff | Compare changes

Git Merge vs Git Rebase: https://t.me/techpsyche/734

Git & Github: https://t.me/techpsyche/858

How to Create a Responsive Screen That Supports All Devices in Flutter?

If you're developing an app with Flutter and want it to look great on all devices, whether small mobiles, tablets, or even large screens, you must rely on responsive design. In Flutter, you have several ways to achieve this easily and professionally.

1. Use MediaQuery
MediaQuery provides information about the current screen size and helps you adjust elements based on height and width.

2. Use LayoutBuilder
LayoutBuilder allows you to divide the screen based on available dimensions, which is very useful for changing the design according to the screen size.

3. Use the ScreenUtil library
ScreenUtil is a very powerful library for designing responsive interfaces easily. You need to add the library to your project:

4. Use Flex Widgets: such as Row and Column with Expanded or Flexible widgets to organize elements.

Always try to use dynamic ratios or values ​​instead of fixed numbers.

Test your app on different screen sizes using Device Preview.

Responsive design not only improves the experience, but also reflects the professionalism of the app. Whether you use MediaQuery, LayoutBuilder, or a library like ScreenUtil, the important thing is to ensure that your app will look its best on all devices! 🚀

Why Use Flutter? 👉 https://t.me/mobiledevresourcestp/69

Remote Mobile Engineer(Cross-Platform) Job at Spruce

- Fully Remote (Worldwide)

Apply Here:
https://kenyatrends.co.ke/ibuu

Global Tech Jobs Here👇
https://t.me/techpsyche

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🍻 Learn Computer Science from Harvard, Stanford, IBM, Microsoft, Google 🍻

❯ JavaScript
http://learn.microsoft.com/training/paths/web-development-101/

❯ TypeScript
http://learn.microsoft.com/training/paths/build-javascript-applications-typescript/

❯ Mathematics (incl. Statistics)
ocw.mit.edu/search/?d=Mathematics&s=department_course_numbers.sort_coursenum

❯ Data Science
cognitiveclass.ai/courses/data-science-101

https://t.me/datascienceresourcestp

❯ C#
http://learn.microsoft.com/users/dotnet/collections/yz26f8y64n7k07

Join for more: https://t.me/techpsyche

More Resources Here
https://whatsapp.com/channel/0029VahGttK5a24AXAJDjm2R

Business Lesson

"Don't fear failure; learn from it."
Every setback is an opportunity to refine your strategy and improve. Successful businesses grow through experimentation.

t.me/techpsyche

If you have no connections, build them.

If you have no money, work, save, invest.

If you have no friend, be a better person.

If you have no talent, practice more.

If you have no idea, walk more.

If you have no confidence, commit more.

If you have no clarity, write more.

https://t.me/techpsyche

Java for Everything: ☕️

Java + Spring = Enterprise Applications

Java + Hibernate = Object-Relational Mapping

Java + Android = Mobile App Development

Java + Swing = Desktop GUI Applications

Java + JavaFX = Modern GUI Applications

Java + JUnit = Unit Testing

Java + Maven = Project Management

Java + Jenkins = Continuous Integration

Java + Apache Kafka = Stream Processing

Java + Apache Hadoop = Big Data Processing

Java + Microservices = Scalable Services

Java Backend Development Courses
https://t.me/javaresourcestp/22

18 Most common used Java List methods
https://t.me/javaresourcestp/61

Java Roadmap
https://t.me/javaresourcestp/16

All the best 👍👍

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Remote QA Software Test Automation Engineer (Java) Job at XM

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