Web Development Mastery: From Basics to Advanced 🚀

Start with the fundamentals:
- HTML
- CSS
- JavaScript
- Responsive Design
- Basic DOM Manipulation
- Git and Version Control

You can grasp these essentials in just a week.

Once you're comfortable, dive into intermediate topics:
- AJAX
- APIs
- Frameworks like React, Angular, or Vue
- Front-end Build Tools (Webpack, Babel)
- Back-end basics with Node.js, Express, or Django

Take another week to solidify these skills.

Ready for the advanced level? Explore:
- Authentication and Authorization
- RESTful APIs
- GraphQL
- WebSockets
- Docker and Containerization
- Testing (Unit, Integration, E2E)

These advanced concepts can be mastered in a couple of weeks.

Remember, mastery comes with practice:
- Create a simple web project
- Tackle an intermediate-level project
- Challenge yourself with an advanced project involving complex features

Consistent practice is the key to becoming a web development pro.

Best platforms to learn:
- FreeCodeCamp
- Web Development Free Courses
- Web Development Roadmap
- Projects
- Bootcamp

Share your progress and learnings with others in the community. Enjoy the journey! 👩‍💻👨‍💻

Join @free4unow_backup for more free resources.

Like this post if it helps 😄❤️

ENJOY LEARNING 👍👍

🧠 How to Build Logic in Programming

👀 Understand the problem clearly
Read the question 2-3 times. Break it into small parts. Don't rush to code.

🪜 Think in steps, not code
Imagine solving it in real life. Write down the steps in simple language before jumping to code.

🧩 Start with simple problems
Practice basics like:
➡️ Find the largest of 3 numbers
➡️ Reverse a string
➡️ Check if a number is prime

🔍 Dry run your logic
Go through each line and see what it’s doing. This helps you understand how the logic flows.

📅 Practice daily
Logic building improves with consistency. The more problems you solve, the better you get.

Is DSA important for interviews?

Yes, DSA (Data Structures and Algorithms) is very important for interviews, especially for software engineering roles.

I often get asked, What do I need to start learning DSA?

Here's the roadmap for getting started with Data Structures and Algorithms (DSA):

𝗣𝗵𝗮𝘀𝗲 𝟭: 𝗙𝘂𝗻𝗱𝗮𝗺𝗲𝗻𝘁𝗮𝗹𝘀
1. Introduction to DSA
- Understand what DSA is and why it's important.
- Overview of complexity analysis (Big O notation).

2. Complexity Analysis
- Time Complexity
- Space Complexity

3. Basic Data Structures
- Arrays
- Linked Lists
- Stacks
- Queues

4. Basic Algorithms
- Sorting (Bubble Sort, Selection Sort, Insertion Sort)
- Searching (Linear Search, Binary Search)

5. OOP (Object-Oriented Programming)

𝗣𝗵𝗮𝘀𝗲 𝟮: 𝗜𝗻𝘁𝗲𝗿𝗺𝗲𝗱𝗶𝗮𝘁𝗲 𝗖𝗼𝗻𝗰𝗲𝗽𝘁𝘀
1. Two Pointers Technique
- Introduction and basic usage
- Problems: Pair Sum, Triplets, Sorted Array Intersection etc..

2. Sliding Window Technique
- Introduction and basic usage
- Problems: Maximum Sum Subarray, Longest Substring with K Distinct Characters, Minimum Window Substring etc..

3. Line Sweep Algorithms
- Introduction and basic usage
- Problems: Meeting Rooms II, Skyline Problem

4. Recursion

5. Backtracking

6. Sorting Algorithms
- Merge Sort
- Quick Sort

7. Data Structures
- Hash Tables
- Trees (Binary Trees, Binary Search Trees)
- Heaps

𝗣𝗵𝗮𝘀𝗲 𝟯: 𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗖𝗼𝗻𝗰𝗲𝗽𝘁𝘀
1. Graph Algorithms
- Graph Representation (Adjacency List, Adjacency Matrix)
- BFS (Breadth-First Search)
- DFS (Depth-First Search)
- Shortest Path Algorithms (Dijkstra's, Bellman-Ford)
- Minimum Spanning Tree (Kruskal's, Prim's)

2. Dynamic Programming
- Basic Problems (Fibonacci, Knapsack etc..)
- Advanced Problems (Longest Increasing Subsea mice, Matrix Chain Subsequence, Multiplication etc..)

3. Advanced Trees
- AVL Trees
- Red-Black Trees
- Segment Trees
- Trie

𝗣𝗵𝗮𝘀𝗲 𝟰: 𝗣𝗿𝗮𝗰𝘁𝗶𝗰𝗲 𝗮𝗻𝗱 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻
1. Competitive Programming Platforms: LeetCode, Codeforces, HackerRank, CodeChef Solve problems daily

2. Mock Interviews
- Participate in mock interviews to simulate real interview scenarios.
- DSA interviews assess your ability to break down complex problems into smaller steps.

Best DSA RESOURCES: https://topmate.io/coding/886874

All the best 👍👍

🚀 Coding Projects & Ideas 💻

Inspire your next portfolio project — from beginner to pro!

🏗️ Beginner-Friendly Projects

1️⃣ To-Do List App – Create tasks, mark as done, store in browser.
2️⃣ Weather App – Fetch live weather data using a public API.
3️⃣ Unit Converter – Convert currencies, length, or weight.
4️⃣ Personal Portfolio Website – Showcase skills, projects & resume.
5️⃣ Calculator App – Build a clean UI for basic math operations.

⚙️ Intermediate Projects

6️⃣ Chatbot with AI – Use NLP libraries to answer user queries.
7️⃣ Stock Market Tracker – Real-time graphs & stock performance.
8️⃣ Expense Tracker – Manage budgets & visualize spending.
9️⃣ Image Classifier (ML) – Classify objects using pre-trained models.
🔟 E-Commerce Website – Product catalog, cart, payment gateway.

🚀 Advanced Projects

1️⃣1️⃣ Blockchain Voting System – Decentralized & tamper-proof elections.
1️⃣2️⃣ Social Media Analytics Dashboard – Analyze engagement, reach & sentiment.
1️⃣3️⃣ AI Code Assistant – Suggest code improvements or detect bugs.
1️⃣4️⃣ IoT Smart Home App – Control devices using sensors and Raspberry Pi.
1️⃣5️⃣ AR/VR Simulation – Build immersive learning or game experiences.

💡 Tip: Build in public. Share your process on GitHub, LinkedIn & Twitter.

🔥 React ❤️ for more project ideas!

Complete Web Development Roadmap 👇👇

1. Introduction to Web Development
- What is Web Development?
- Frontend vs Backend
- Full Stack Development
- Roles and Responsibilities of Web Developers

2. HTML (HyperText Markup Language)
- Basics of HTML
- HTML5 Features
- Semantic Elements
- Forms and Inputs
- Accessibility in HTML

3. CSS (Cascading Style Sheets)
- Basics of CSS
- CSS Grid
- Flexbox
- CSS Animations
- Media Queries for Responsive Design

4. JavaScript (JS)
- Introduction to JavaScript
- Variables, Loops, and Functions
- DOM Manipulation
- ES6+ Features
- Async JS (Promises, Async/Await)

5. Version Control with Git
- What is Git?
- Git Commands (add, commit, push, pull, etc.)
- Branching and Merging
- Using GitHub/GitLab
- Collaboration with Git

6. Frontend Frameworks and Libraries
- React.js Basics
- Vue.js Basics
- Angular Basics
- Component-Based Architecture
- State Management (Redux, Vuex)

7. CSS Frameworks
- Bootstrap
- Tailwind CSS
- Materialize CSS
- CSS Preprocessors (SASS, LESS)

8. Backend Development
- Introduction to Server-Side Programming
- Node.js
- Express.js
- Django or Flask (Python)
- Ruby on Rails
- Java with Spring Framework

9. Databases
- SQL vs NoSQL
- MySQL/PostgreSQL
- MongoDB
- Database Relationships
- CRUD Operations

10. RESTful APIs and GraphQL
- REST API Basics
- CRUD Operations in APIs
- Postman for API Testing
- GraphQL Introduction
- Fetching Data with GraphQL

11. Authentication and Security
- Basic Authentication
- OAuth and JWT
- Securing Routes
- HTTPS and SSL Certificates
- Web Security Best Practices

12. Web Hosting and Deployment
- Shared vs VPS Hosting
- Deploying with Netlify or Vercel
- Domain Names and DNS
- Continuous Deployment with CI/CD

13. DevOps Basics
- Containerization with Docker
- CI/CD Pipelines
- Automation and Deployment

14. Web Performance Optimization
- Browser Caching
- Minification and Compression
- Image Optimization
- Lazy Loading
- Performance Testing

15. Progressive Web Apps (PWA)
- What are PWAs?
- Service Workers
- Web App Manifest
- Offline Functionality
- Push Notifications

16. Mobile-First and Responsive Design
- Mobile-First Approach
- Responsive Layouts
- Frameworks for Responsive Design
- Testing Mobile Responsiveness

17. Testing and Debugging
- Unit Testing (Jest, Mocha)
- Integration and End-to-End Testing (Cypress, Selenium)
- Debugging JavaScript
- Browser DevTools
- Performance and Load Testing

18. WebSocket and Real-Time Communication
- Introduction to WebSocket
- Real-Time Data with WebSocket
- Server-Sent Events
- Chat Application Example
- Using Libraries like Socket.io

19. GraphQL vs REST APIs
- Differences between REST and GraphQL
- Querying with GraphQL
- Mutations in GraphQL
- Setting up a GraphQL Server

20. Web Animations
- CSS Animations and Transitions
- JavaScript-Based Animations (GSAP)
- Performance Optimization for Animations

21. CMS (Content Management Systems)
- What is a CMS?
- Headless CMS (Strapi, Contentful)
- Customizing CMS with Plugins and Themes

22. Serverless Architecture
- Introduction to Serverless
- AWS Lambda, Google Cloud Functions
- Building Serverless APIs

Additional Tips:
- Building your own Portfolio
- Freelancing and Remote Jobs

Web Development Resources 👇👇

Intro to HTML and CSS

Intro to Backend

Intro to JavaScript

Web Development for Beginners

Object-Oriented JavaScript

Best Web Development Resources

Join @free4unow_backup for more free resources.

ENJOY LEARNING 👍👍

🚀 Full-Stack Developer Roadmap (2025 Edition)

If you want to become a Full-Stack Developer, you need to master both Frontend and Backend development, along with Databases, APIs, DevOps, and Deployment.

Here’s a step-by-step roadmap to guide you:

📌 1. Learn the Fundamentals
Before diving into full-stack development, build a strong foundation.

✅ Internet Basics – How the web works, HTTP/HTTPS, DNS
✅ Basic Git & GitHub – Version control, repositories, branches
✅ Command Line (CLI) – Basic Linux/Terminal commands

📚 Resources:
🔹 GitHub Docs
🔹 HTTP Basics

📌 2. Frontend Development (Building the UI)

The frontend is what users interact with. Learn:

✅ HTML – Structure of webpages
✅ CSS – Styling, Flexbox, Grid, Responsive Design
✅ JavaScript (ES6+) – DOM Manipulation, Async/Await, Fetch API
✅ CSS Frameworks – Bootstrap, Tailwind CSS (optional)

📚 Resources:
🔹 HTML & CSS
🔹 JavaScript (JS.info)

📌 3. Frontend Frameworks (Choose One)

A frontend framework helps in building complex UI faster.

✅ React.js – Most popular, component-based, strong job market
✅ Vue.js – Lightweight, easy to learn, great for small apps
✅ Angular – Powerful but complex, used in large-scale apps

📚 Resources:
🔹 React Docs
🔹 Vue.js Docs
🔹 Angular Docs

📌 4. Backend Development (Server-Side Logic)

The backend handles data processing, authentication, and business logic.

✅ Choose a Backend Language:

JavaScript – Node.js + Express.js
Python – Django / Flask
Java – Spring Boot
PHP, Ruby, Go (Optional)

✅ Backend Fundamentals:

REST APIs (GET, POST, PUT, DELETE)
Authentication (JWT, OAuth, Sessions)
Middleware, Routing, Error Handling

📚 Resources:
🔹 Node.js Docs
🔹 Django Docs

📌 5. Databases & ORM (Data Storage & Management)

Databases store and manage application data. Learn:

✅ SQL Databases – MySQL, PostgreSQL (Structured data)
✅ NoSQL Databases – MongoDB, Firebase (Unstructured data)
✅ ORMs (Object Relational Mapping) – Sequelize (Node.js), SQLAlchemy (Python)

📚 Resources:
🔹 PostgreSQL Guide
🔹 MongoDB Docs

📌 6. Full-Stack Development (Combining Frontend & Backend)

Learn how to connect frontend and backend into a complete web application.

✅ MERN Stack (MongoDB, Express.js, React, Node.js)
✅ MEAN Stack (MongoDB, Express.js, Angular, Node.js)
✅ LAMP Stack (Linux, Apache, MySQL, PHP)

📚 Resources:
🔹 Full-Stack Project Guide

📌 7. Authentication & Security

Web apps must be secure and protected from attacks.

✅ Authentication Methods:
JWT (JSON Web Tokens)
OAuth (Google, Facebook Login)
Session-Based Authentication

✅ Security Best Practices:
Protect against SQL Injection, XSS, CSRF
Hash passwords with bcrypt
Use HTTPS & Helmet.js for secure headers

📚 Resources:
🔹 JWT Guide
🔹 Web Security Best Practices

📌 8. DevOps & Deployment (Hosting Your Projects)

A Full-Stack Developer should know how to deploy applications.
✅ Frontend Deployment:
Netlify, Vercel, GitHub Pages
✅ Backend Deployment:
Heroku, Render, DigitalOcean, AWS, Firebase
✅ CI/CD (Continuous Integration & Deployment):
GitHub Actions, Docker, Jenkins

📚 Resources:
🔹 Deploy Node.js Apps
🔹 AWS Hosting Guide

📌 9. Build Real-World Projects

Apply your knowledge by building full-stack applications.

✅ Beginner Projects:
To-Do List App
Weather App
Personal Portfolio

✅ Intermediate Projects:
Blog CMS (React + Node.js + MongoDB)
E-commerce Website (Product Listing, Cart, Payments)

✅ Advanced Projects:
Social Media App (Posts, Likes, Comments)
Chat App (WebSockets, Real-Time Messaging)
AI-Powered Web App (Chatbot, Image Processing)

📚 Resources:
🔹 Full-Stack Project Ideas

📌 10. Get a Job as a Full-Stack Developer
Once you have projects and skills, start applying for jobs!
✅ Prepare a Strong Resume & Portfolio
✅ Optimize LinkedIn & GitHub Profile
✅ Practice Coding & System Design Interviews
✅ Apply for Jobs (LinkedIn, Indeed, Glassdoor, Wellfound)

📚 Resources:
🔹 LeetCode for Coding Practice
🔹 Interview Prep

Web Development Best Resources

Like for more ❤️

ENJOY LEARNING 👍👍

9 full-stack project ideas to build your portfolio:

🛍️ Online Store — product listings, cart, checkout, and payment integration

🗓️ Event Booking App — users can browse, book, and manage events

📚 Learning Platform — courses, quizzes, progress tracking

🏥 Appointment Scheduler — book and manage appointments with calendar UI

✍️ Blogging System — post creation, comments, likes, and user roles

💼 Job Board — post and search jobs, apply with resumes

🏠 Real Estate Listings — search, filter, and view property details

💬 Chat App — real-time messaging with sockets or Firebase

📊 Admin Dashboard — charts, user data, and analytics in one place

Like this post if you want me to cover the skills needed to build such projects ❤️

Web Development Resources: https://whatsapp.com/channel/0029VaiSdWu4NVis9yNEE72z

Like it if you need a complete tutorial on all these projects! 👍❤️

Here are the top 5 machine learning projects that are suitable for freshers to work on:

1. Predicting House Prices: Build a machine learning model that predicts house prices based on features such as location, size, number of bedrooms, etc. This project will help you understand regression techniques and feature engineering.

2. Image Classification: Create a model that can classify images into different categories such as cats vs. dogs, fruits, or handwritten digits. This project will introduce you to convolutional neural networks (CNNs) and image processing.

3. Sentiment Analysis: Develop a sentiment analysis model that can classify text data as positive, negative, or neutral. This project will help you learn natural language processing techniques and text classification algorithms.

4. Credit Card Fraud Detection: Build a model that can detect fraudulent credit card transactions based on transaction data. This project will help you understand anomaly detection techniques and imbalanced classification problems.

5. Recommendation System: Create a recommendation system that suggests products or movies to users based on their preferences and behavior. This project will introduce you to collaborative filtering and recommendation algorithms.

Credits: https://t.me/free4unow_backup

All the best 👍👍

Steps to become a full-stack developer

Learn the Fundamentals: Start with the basics of programming languages, web development, and databases. Familiarize yourself with technologies like HTML, CSS, JavaScript, and SQL.

Front-End Development: Master front-end technologies like HTML, CSS, and JavaScript. Learn about frameworks like React, Angular, or Vue.js for building user interfaces.

Back-End Development: Gain expertise in a back-end programming language like Python, Java, Ruby, or Node.js. Learn how to work with servers, databases, and server-side frameworks like Express.js or Django.

Databases: Understand different types of databases, both SQL (e.g., MySQL, PostgreSQL) and NoSQL (e.g., MongoDB). Learn how to design and query databases effectively.

Version Control: Learn Git, a version control system, to track and manage code changes collaboratively.

APIs and Web Services: Understand how to create and consume APIs and web services, as they are essential for full-stack development.

Development Tools: Familiarize yourself with development tools, including text editors or IDEs, debugging tools, and build automation tools.

Server Management: Learn how to deploy and manage web applications on web servers or cloud platforms like AWS, Azure, or Heroku.

Security: Gain knowledge of web security principles to protect your applications from common vulnerabilities.

Build a Portfolio: Create a portfolio showcasing your projects and skills. It's a powerful way to demonstrate your abilities to potential employers.

Project Experience: Work on real projects to apply your skills. Building personal projects or contributing to open-source projects can be valuable.

Continuous Learning: Stay updated with the latest web development trends and technologies. The tech industry evolves rapidly, so continuous learning is crucial.

Soft Skills: Develop good communication, problem-solving, and teamwork skills, as they are essential for working in development teams.

Job Search: Start looking for full-stack developer job opportunities. Tailor your resume and cover letter to highlight your skills and experience.

Interview Preparation: Prepare for technical interviews, which may include coding challenges, algorithm questions, and discussions about your projects.

Continuous Improvement: Even after landing a job, keep learning and improving your skills. The tech industry is always changing.

Remember that becoming a full-stack developer takes time and dedication. It's a journey of continuous learning and improvement, so stay persistent and keep building your skills.

Join for more: https://whatsapp.com/channel/0029VaiSdWu4NVis9yNEE72z

ENJOY LEARNING 👍👍

15 Best Project Ideas for Backend Development : 🛠️🌐

🚀 Beginner Level :

1. 📦 RESTful API for a To-Do App
2. 📝 Contact Form Backend
3. 🗂️ File Upload Service
4. 📬 Email Subscription Service
5. 🧾 Notes App Backend

🌟 Intermediate Level :
6. 🛒 E-commerce Backend with Cart & Orders
7. 🔐 Authentication System (JWT/OAuth)
8. 🧑‍🤝‍🧑 User Management API
9. 🧾 Invoice Generator API
10. 🧠 Blog CMS Backend

🌌 Advanced Level :
11. 🧠 AI Chatbot Backend Integration
12. 📈 Real-Time Stock Tracker using WebSockets
13. 🎧 Music Streaming Server
14. 💬 Real-Time Chat Server
15. ⚙️ Microservices Architecture for Large Apps

Here you can find more Coding Project Ideas: https://whatsapp.com/channel/0029VazkxJ62UPB7OQhBE502

Web Development Jobs: https://whatsapp.com/channel/0029Vb1raTiDjiOias5ARu2p

JavaScript Resources: https://whatsapp.com/channel/0029VavR9OxLtOjJTXrZNi32

ENJOY LEARNING 👍👍

If you interview at Google, you’ll be grilled on graph problems and real-world use cases, like Google Maps.

If you interview at Amazon, expect stack/queue questions straight out of their backend systems, think processing millions of print jobs and browser back buttons.

If you interview at Atlassian or Oracle, don’t be surprised if DSA problems are tied to actual product scenarios, like task tracking, caching, and visitor analytics.

Every DSA round cares about:
→ Can you map the right data structure to a real problem?
→ Do you understand WHY Google uses graphs, why Amazon cares about queues, why Microsoft loves sets and tries?

After coaching students and professionals for the last 8+ years and helping them get placed across the board at Google, Amazon, Atlassian, Juspay, Swiggy, and many more companies.

I can tell you with 100% certainty that without mastering these 8 essential data structures and their problems, you won’t be able to clear coding interviews.

Here are the 8 Data Structures You Must Know:

→ 1. Arrays:
Foundation for all DSA. Fast access, easy to use, but slow for inserts/deletes in the middle. Used everywhere, think memory management, and basic storage.

– Learn which pattern to use for which problem
– Map interview keywords to real solutions
– Practice 5–6 Leetcode must-solves per pattern
– Track your progress and build a real interview toolkit }

→ 2. Linked Lists:
Great for inserts/deletes, bad for random access. Useful in implementing queues, stacks, and real-world apps like undo operations.

→ 3. Hash Maps:
Fast key-value lookups, like dictionaries. Power most caching systems and help in solving “find duplicates” or “group by” problems.

→ 4. Stacks & Queues:
Think of your browser history (stack), print jobs (queue), or undo-redo (stack). Interviewers love these for testing order and flow.

→ 5. Trees (including Binary Search Trees):
Used for hierarchical data, searching, sorting, and in system internals. Master BSTs for fast lookups and ordered storage.

→ 6. Tries (Prefix Trees):
Special tree for autocomplete, spell checkers, and prefix matching. Autocomplete in search bars is built on tries.

→ 7. Heaps:
Perfect for getting the min/max element fast. Used in priority queues, scheduling jobs, and heapsort.

→ 8. Graphs:
Most complex but super important. Used in Google Maps, social networks, recommendations, network routing. You need to understand adjacency lists, DFS, BFS, and shortest path algorithms.

Bottom line:
Don’t just practice random Leetcode problems. Master these data structures, and also understand real-world use cases so you don't fall into the trap of tricky questions.

Here is an A-Z list of essential programming terms:

1. Array: A data structure that stores a collection of elements of the same type in contiguous memory locations.

2. Boolean: A data type that represents true or false values.

3. Conditional Statement: A statement that executes different code based on a condition.

4. Debugging: The process of identifying and fixing errors or bugs in a program.

5. Exception: An event that occurs during the execution of a program that disrupts the normal flow of instructions.

6. Function: A block of code that performs a specific task and can be called multiple times in a program.

7. GUI (Graphical User Interface): A visual way for users to interact with a computer program using graphical elements like windows, buttons, and menus.

8. HTML (Hypertext Markup Language): The standard markup language used to create web pages.

9. Integer: A data type that represents whole numbers without any fractional part.

10. JSON (JavaScript Object Notation): A lightweight data interchange format commonly used for transmitting data between a server and a web application.

11. Loop: A programming construct that allows repeating a block of code multiple times.

12. Method: A function that is associated with an object in object-oriented programming.

13. Null: A special value that represents the absence of a value.

14. Object-Oriented Programming (OOP): A programming paradigm based on the concept of "objects" that encapsulate data and behavior.

15. Pointer: A variable that stores the memory address of another variable.

16. Queue: A data structure that follows the First-In-First-Out (FIFO) principle.

17. Recursion: A programming technique where a function calls itself to solve a problem.

18. String: A data type that represents a sequence of characters.

19. Tuple: An ordered collection of elements, similar to an array but immutable.

20. Variable: A named storage location in memory that holds a value.

21. While Loop: A loop that repeatedly executes a block of code as long as a specified condition is true.

Best Programming Resources: https://topmate.io/coding/898340

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

ENJOY LEARNING 👍👍

Data Analytics Interview Preparation
[Questions with Answers]

How did you get your job?

I was hired after an internship. 
To get the internship, I prepared a bunch for general Python questions (LeetCode etc.) and studied the basics of machine learning (several different algorithms, how they work, when they're useful, metrics 
to measure their performance, how to train them in practice etc.). 

To get the internship I had to pass a technical interview as well as a take-home machine learning (ML) exercise. Then, it was just a question of doing a good job in the internship! 

What are your data related responsibilities in your job? 

I work on our recommendation system. It’s deep learning based. I work on a lot of features to try and 
improve it (reinforcement learning & NLP etc). Since I'm in a start-up, it's also up to our team to put the models we design into production. So, after a phase of research & development and model design, in notebooks, it's time to create a real pipeline, by creating scripts. 
This enables us to define, train, replace, compare and check the status of the models in production. It's basically all in Python, using Keras/TensorFlow, Pandas, Scikit-learn and NumPy. We also do a lot of analysis for the business team to help them compute metrics of interest (related to 
revenue, acquisition etc.). For that, we use an external utility called Metabase. It is is hooked up to our database where we write SQL queries and visualize the results and create dashboards (using 
Tableau/Looker etc). 
I would say my role is quite "full-stack" since we are all involved from the phase of R&D to deployment on our cluster. 

Was it difficult to get this role?

I got hired after an internship. If you come from a scientific background, it's not that hard to transition into data science. All the math is something you will probably have seen already (especially if you're 
doing maths or physics). So, with some preparation and coding practice, you can start applying to internships. 
It took me maybe a month or two of preparation to get some basic ideas of the typical Python data stack (Pandas, Keras, SciKit-learn etc) before I started to send out CVs. Then, if you get an internship, try your best to do the best you can and then maybe you'll be hired after!

I have curated best 80+ top-notch Data Analytics Resources 👇👇
https://whatsapp.com/channel/0029VaGgzAk72WTmQFERKh02

Hope it helps :)