Krishna

Your daily tech career resource.

Verified job alerts
Free courses + certifications
AI tools + developer resources
New opportunities daily

[Krishna @KrishnaMohanS30]

🚨 FREE React Courses + FREE Certificates

React is one of the most in-demand frontend skills.

These platforms let you learn React for FREE and earn a FREE certificate.

1. 🏆 freeCodeCamp – Front End Development Libraries
https://t.co/s1Tq9qTXxh

✅ React
✅ Redux
✅ FREE Verified Certificate

2. 🎓 Full Stack Open (University of Helsinki)
https://t.co/cZ4m3i3DcC

✅ React
✅ React Native
✅ Node.js
✅ GraphQL
✅ FREE University Certificate

3. 💻 Scrimba – Learn React
https://t.co/r2jHUUeVYP

✅ Interactive React course
✅ FREE Certificate of Completion

4. 🌐 Infosys Springboard – React
https://t.co/DzW1uCeEDu

✅ React courses
✅ FREE Certificate

5. 🎓 Great Learning – React for Beginners
https://t.co/iXYLYgQiR1

✅ Beginner-friendly
✅ FREE Certificate

6. 🎓 Simplilearn SkillUp – React Basics
https://t.co/twcYOvK6hP

✅ React fundamentals
✅ FREE Certificate

Most developers keep collecting tutorials.

The smartest ones collect skills and certificates.

Bookmark this.

Follow @KrishnaMohanS30 for daily FREE courses with certificates, verified job alerts, and developer resources.

[Krishna @KrishnaMohanS30]

8 FREE Tech Courses to Learn in 2026

You don't need another expensive subscription to start building tech skills.

Here are 8 free courses/resources from Microsoft, IBM, AWS, NVIDIA and edX:

1. Python for Beginners — Microsoft
Learn Python fundamentals from the ground up.

https://t.co/sROBA9PjH4

2. SQL for Data Science — IBM / edX
Learn SQL fundamentals for working with data.

https://t.co/imTTjhx0wj

3. Java Programming — Infosys Springboard
Build your Java programming fundamentals.

https://t.co/DzsQN1Bfyp

4. AI Fundamentals / AI-900 — Microsoft
Learn foundational AI concepts and how they relate to Azure.

https://t.co/9mpf6wSSJx

5. Fundamentals of Machine Learning — NVIDIA DLI
Build foundational machine learning knowledge.

https://t.co/eifRThG3r2

6. AWS Cloud Practitioner Essentials — AWS
Learn AWS Cloud concepts, core services, security, pricing and more.

https://t.co/ChKRIBy0ii

7. Get Started with Microsoft Data Analytics
Learn the fundamentals of data analytics and how data supports decision-making.

https://t.co/Bm4rkHM9dD

8. Data Science Foundations — IBM SkillsBuild
Build foundational data science skills with IBM.

https://t.co/AZIRfAY8WP

If you're starting from zero, I'd follow this order:

Python
↓
SQL
↓
Data Analytics
↓
Data Science
↓
Machine Learning
↓
AI
↓
Cloud

Don't collect courses.

Complete them.

Build projects.

Put those projects on GitHub.

That's how free learning becomes career capital.

Save this list.

Follow @KrishnaMohanS30 for free courses, certifications, developer resources, tech jobs and career opportunities.

[Krishna @KrishnaMohanS30]

8 FREE Tech Courses to Learn in 2026

You don't need another expensive subscription to start building tech skills.

Here are 8 free courses/resources from Microsoft, IBM, AWS, NVIDIA and edX:

1. Python for Beginners — Microsoft
Learn Python fundamentals from the ground up.

https://t.co/sROBA9PjH4

2. SQL for Data Science — IBM / edX
Learn SQL fundamentals for working with data.

https://t.co/imTTjhx0wj

3. Java Programming — Infosys Springboard
Build your Java programming fundamentals.

https://t.co/DzsQN1Bfyp

4. AI Fundamentals / AI-900 — Microsoft
Learn foundational AI concepts and how they relate to Azure.

https://t.co/9mpf6wSSJx

5. Fundamentals of Machine Learning — NVIDIA DLI
Build foundational machine learning knowledge.

https://t.co/eifRThG3r2

6. AWS Cloud Practitioner Essentials — AWS
Learn AWS Cloud concepts, core services, security, pricing and more.

https://t.co/ChKRIBy0ii

7. Get Started with Microsoft Data Analytics
Learn the fundamentals of data analytics and how data supports decision-making.

https://t.co/Bm4rkHM9dD

8. Data Science Foundations — IBM SkillsBuild
Build foundational data science skills with IBM.

https://t.co/AZIRfAY8WP

If you're starting from zero, I'd follow this order:

Python
↓
SQL
↓
Data Analytics
↓
Data Science
↓
Machine Learning
↓
AI
↓
Cloud

Don't collect courses.

Complete them.

Build projects.

Put those projects on GitHub.

That's how free learning becomes career capital.

Save this list.

Follow @KrishnaMohanS30 for free courses, certifications, developer resources, tech jobs and career opportunities.

[Krishna @KrishnaMohanS30]

30 FREE DevOps Courses on Udemy

You don't need an expensive DevOps bootcamp to start.

Here are 30 free courses/resources worth checking:

1. Introduction to DevOps — Learn DevOps basics in 3 hours
https://t.co/ryQP3mKixL

2. DevOps for Beginners with Demonstrations
https://t.co/pMLqoR1UvO

3. DevOps 101
https://t.co/wf3LPsVhab

4. DevOps Foundation Course
https://t.co/aZ3PiYatjN

5. DevOps Fundamentals for Beginners
https://t.co/bJZlgTnfmz

6. DevOps, CI/CD for Beginners
https://t.co/ZojStLzBFZ

7. DevOps Basics
https://t.co/SOFgwJIn7b

8. Introduction to DevOps: Roadmap to DevOps Career
https://t.co/wPTm74ihro

9. DevOps Fundamentals Course
https://t.co/pMLqoR1UvO

10. DevOps Foundation
https://t.co/CKUFfYScB6

11. DevOps Essentials
https://t.co/eIdQlkFCWo

12. DevOps 101
https://t.co/wf3LPsVhab

13. CI/CD DevOps
https://t.co/ZojStLzBFZ

14. DevOps Fundamentals for Beginners
https://t.co/bJZlgTnfmz

15. DevOps with Docker, Kubernetes & Azure DevOps
https://t.co/i9mDUUG7JE

16. DevOps Basics
https://t.co/SOFgwJIn7b

17. Linux Commands for DevOps & Cloud Engineers
https://t.co/hUpxdIt9kI

18. DevOps Free Courses — Udemy
https://t.co/drTfhdquYw

19. DevOps Tutorials — Udemy
https://t.co/JnxxfKi2lF

20. What is DevOps & DevOps Tools
https://t.co/NCmeNE101b

21. DevOps Fundamentals: Git, CI/CD & Docker Basics
https://t.co/TcmowYTReP

22. DevSecOps Fundamentals
https://t.co/tpMAj09kDF

23. DevSecOps for Absolute Beginners
https://t.co/BHucJ8kaMU

24. DevOps: CI/CD with Jenkins, Nexus, Ansible, Docker & Terraform
https://t.co/PznCulSa4k

25. DevOps Engineer: Docker, Kubernetes, Jenkins, Terraform & AWS
https://t.co/Eeoqq6aEQC

26. Docker, Kubernetes & AWS with GitHub Actions
https://t.co/rlsf0gw8Nf

27. DevOps Real-World Project: CI/CD on EKS
https://t.co/CvYEuTYFI8

28. DevOps Uncomplicated: Hands-On Automation
https://t.co/k1tMX648Hx

29. Get into DevOps: The Masterclass
https://t.co/XAEUT8oI9C

30. Free Udemy Courses
https://t.co/WacSpkM1jO

Best starting sequence:

DevOps fundamentals
↓
Linux
↓
Git & GitHub
↓
CI/CD
↓
Docker
↓
Kubernetes
↓
Terraform
↓
Cloud
↓
Monitoring
↓
DevSecOps

My top picks:

#1 — Best overall beginner introduction
#3 — Quick DevOps fundamentals
#4 — DevOps Foundation + certification
#6 — CI/CD fundamentals
#15 — Docker + Kubernetes + Azure DevOps
#17 — Linux for DevOps
#21 — Git + CI/CD + Docker
#24 — Jenkins + Ansible + Docker + Terraform
#27 — Real-world DevOps project

Don't try to learn 30 courses.

Pick ONE.

Finish it.

Build something.

Then move to the next skill.

Save this list.

Follow @KrishnaMohanS30 for free courses, developer resources, tech jobs and career opportunities.

IMPORTANT:
Udemy's free catalog changes frequently. Always open the course page and confirm that it says "Current price Free" before enrolling.

[Krishna @KrishnaMohanS30]

30 FREE DevOps Courses on Udemy

You don't need an expensive DevOps bootcamp to start.

Here are 30 free courses/resources worth checking:

1. Introduction to DevOps — Learn DevOps basics in 3 hours
https://t.co/ryQP3mKixL

2. DevOps for Beginners with Demonstrations
https://t.co/pMLqoR1UvO

3. DevOps 101
https://t.co/wf3LPsVhab

4. DevOps Foundation Course
https://t.co/aZ3PiYatjN

5. DevOps Fundamentals for Beginners
https://t.co/bJZlgTnfmz

6. DevOps, CI/CD for Beginners
https://t.co/ZojStLzBFZ

7. DevOps Basics
https://t.co/SOFgwJIn7b

8. Introduction to DevOps: Roadmap to DevOps Career
https://t.co/wPTm74ihro

9. DevOps Fundamentals Course
https://t.co/pMLqoR1UvO

10. DevOps Foundation
https://t.co/CKUFfYScB6

11. DevOps Essentials
https://t.co/eIdQlkFCWo

12. DevOps 101
https://t.co/wf3LPsVhab

13. CI/CD DevOps
https://t.co/ZojStLzBFZ

14. DevOps Fundamentals for Beginners
https://t.co/bJZlgTnfmz

15. DevOps with Docker, Kubernetes & Azure DevOps
https://t.co/i9mDUUG7JE

16. DevOps Basics
https://t.co/SOFgwJIn7b

17. Linux Commands for DevOps & Cloud Engineers
https://t.co/hUpxdIt9kI

18. DevOps Free Courses — Udemy
https://t.co/drTfhdquYw

19. DevOps Tutorials — Udemy
https://t.co/JnxxfKi2lF

20. What is DevOps & DevOps Tools
https://t.co/NCmeNE101b

21. DevOps Fundamentals: Git, CI/CD & Docker Basics
https://t.co/TcmowYTReP

22. DevSecOps Fundamentals
https://t.co/tpMAj09kDF

23. DevSecOps for Absolute Beginners
https://t.co/BHucJ8kaMU

24. DevOps: CI/CD with Jenkins, Nexus, Ansible, Docker & Terraform
https://t.co/PznCulSa4k

25. DevOps Engineer: Docker, Kubernetes, Jenkins, Terraform & AWS
https://t.co/Eeoqq6aEQC

26. Docker, Kubernetes & AWS with GitHub Actions
https://t.co/rlsf0gw8Nf

27. DevOps Real-World Project: CI/CD on EKS
https://t.co/CvYEuTYFI8

28. DevOps Uncomplicated: Hands-On Automation
https://t.co/k1tMX648Hx

29. Get into DevOps: The Masterclass
https://t.co/XAEUT8oI9C

30. Free Udemy Courses
https://t.co/WacSpkM1jO

Best starting sequence:

DevOps fundamentals
↓
Linux
↓
Git & GitHub
↓
CI/CD
↓
Docker
↓
Kubernetes
↓
Terraform
↓
Cloud
↓
Monitoring
↓
DevSecOps

My top picks:

#1 — Best overall beginner introduction
#3 — Quick DevOps fundamentals
#4 — DevOps Foundation + certification
#6 — CI/CD fundamentals
#15 — Docker + Kubernetes + Azure DevOps
#17 — Linux for DevOps
#21 — Git + CI/CD + Docker
#24 — Jenkins + Ansible + Docker + Terraform
#27 — Real-world DevOps project

Don't try to learn 30 courses.

Pick ONE.

Finish it.

Build something.

Then move to the next skill.

Save this list.

Follow @KrishnaMohanS30 for free courses, developer resources, tech jobs and career opportunities.

IMPORTANT:
Udemy's free catalog changes frequently. Always open the course page and confirm that it says "Current price Free" before enrolling.

[Krishna @KrishnaMohanS30]

@MissHR_ Result oriented resume and the problem you solved how it helped the team is the key great post

[Miss HR | Technical Recruiter @MissHR_]

Software engineers, use this resume formula:
Action + What you owned + Clear result
Example:
“Rewrote payment service in Go → cut latency 48% and handled 3x traffic”
No fluff. No tech dump. Just results.
Steal it.

[Krishna @KrishnaMohanS30]

50 privacy-focused tools worth knowing in 2026.

You don't need to give up convenience to get more control over your data.

Here are 50 free/open-source or privacy-focused alternatives worth exploring:

PASSWORDS & AUTHENTICATION

1. Bitwarden
https://t.co/zLi7ndeHWr

2. KeePassXC
https://t.co/GKkknABUiY

3. Vaultwarden
https://t.co/8Ylw3GgFe3

4. Aegis Authenticator
https://t.co/8y2O0Gis6T

5. 2FAS
https://t.co/fpU7M87750

PRIVATE COMMUNICATION

6. Signal
https://t.co/JEOcvo20Ld

7. SimpleX Chat
https://t.co/uThOxb64p6

8. Briar
https://t.co/94jPjrDbs3

9. Element
https://t.co/jAOgDFJpFf

10. Jami
https://t.co/p6L7keoiA2

PRIVATE NOTES & DOCUMENTS

11. Joplin
https://t.co/oF7AMNLaQl

12. Standard Notes
https://t.co/L0z9pKCZqx

13. Notesnook
https://t.co/MtcNcdoslu

14. CryptPad
https://t.co/Gh9kXBW5Sf

15. LibreOffice
https://t.co/5wPDgejzYu

16. ONLYOFFICE
https://t.co/yIcHB6bgNv

PRIVATE CLOUD & FILE STORAGE

17. Nextcloud
https://t.co/OOIorY6el2

18. Syncthing
https://t.co/j7hcOEkyr9

19. Seafile
https://t.co/Y2Yyqm2aPK

20. Cryptomator
https://t.co/t1ogP2vBWy

21. VeraCrypt
https://t.co/78G1qQZSdr

BACKUP & FILE TRANSFER

22. Restic
https://t.co/f5Ex82Ail1

23. BorgBackup
https://t.co/QkqJSMrclI

24. Kopia
https://t.co/2WorjHHR9P

25. OnionShare
https://t.co/btcTBleSWV

26. croc
https://t.co/r6pop6fYuH

PRIVATE BROWSING

27. Tor Browser
https://t.co/Bp2toBdBIo

28. Mullvad Browser
https://t.co/plwhSePjkh

29. LibreWolf
https://t.co/iSTg0nDoaa

30. Firefox
https://t.co/Y0UUluaokD

31. Ungoogled Chromium
https://t.co/b2d98YeX5U

BROWSER PRIVACY

32. uBlock Origin
https://t.co/x8PTPByImD

33. Privacy Badger
https://t.co/wsGdA2nLSn

34. ClearURLs
https://t.co/WBYfnXDxDt

35. NoScript
https://t.co/XXC1oE5PaL

PRIVATE SEARCH

36. SearXNG
https://t.co/8fho6bc0Ep

37. Whoogle
https://t.co/HGGkC763QS

38. Brave Search
https://t.co/L52xSgbOzr

NETWORK & DNS PRIVACY

39. Pi-hole
https://t.co/dpfkEQ3MWD

40. AdGuard Home
https://t.co/BuDisTrP4l

41. Mullvad VPN
https://t.co/j0tiOyf9Ek

42. WireGuard
https://t.co/R6oHy8eIoT

43. OpenVPN
https://t.co/ndgh4ar00y

PRIVACY-FOCUSED OPERATING SYSTEMS

44. GrapheneOS
https://t.co/cwjd7pZ3z1

45. CalyxOS
https://t.co/Qxhuyja1tk

46. Tails
https://t.co/NmwUi0o0M4

47. Qubes OS
https://t.co/1Y2RGtRmnb

PRIVATE PHOTO & MEDIA MANAGEMENT

48. Immich
https://t.co/7XQPYX8UPp

49. Jellyfin
https://t.co/FiFCanCIva

50. PhotoPrism
https://t.co/JKQ4FSguf2

The point isn't to install all 50.

Pick one area where you currently depend on a closed service.

Replace it.

Then move to the next.

Privacy becomes much easier when you treat it as a series of small upgrades instead of one massive lifestyle change.

Save this list.

Follow @KrishnaMohanS30 for free tools, open-source resources, tech jobs and career opportunities.

[Krishna @KrishnaMohanS30]

50 privacy-focused tools worth knowing in 2026.

You don't need to give up convenience to get more control over your data.

Here are 50 free/open-source or privacy-focused alternatives worth exploring:

PASSWORDS & AUTHENTICATION

1. Bitwarden
https://t.co/zLi7ndeHWr

2. KeePassXC
https://t.co/GKkknABUiY

3. Vaultwarden
https://t.co/8Ylw3GgFe3

4. Aegis Authenticator
https://t.co/8y2O0Gis6T

5. 2FAS
https://t.co/fpU7M87750

PRIVATE COMMUNICATION

6. Signal
https://t.co/JEOcvo20Ld

7. SimpleX Chat
https://t.co/uThOxb64p6

8. Briar
https://t.co/94jPjrDbs3

9. Element
https://t.co/jAOgDFJpFf

10. Jami
https://t.co/p6L7keoiA2

PRIVATE NOTES & DOCUMENTS

11. Joplin
https://t.co/oF7AMNLaQl

12. Standard Notes
https://t.co/L0z9pKCZqx

13. Notesnook
https://t.co/MtcNcdoslu

14. CryptPad
https://t.co/Gh9kXBW5Sf

15. LibreOffice
https://t.co/5wPDgejzYu

16. ONLYOFFICE
https://t.co/yIcHB6bgNv

PRIVATE CLOUD & FILE STORAGE

17. Nextcloud
https://t.co/OOIorY6el2

18. Syncthing
https://t.co/j7hcOEkyr9

19. Seafile
https://t.co/Y2Yyqm2aPK

20. Cryptomator
https://t.co/t1ogP2vBWy

21. VeraCrypt
https://t.co/78G1qQZSdr

BACKUP & FILE TRANSFER

22. Restic
https://t.co/f5Ex82Ail1

23. BorgBackup
https://t.co/QkqJSMrclI

24. Kopia
https://t.co/2WorjHHR9P

25. OnionShare
https://t.co/btcTBleSWV

26. croc
https://t.co/r6pop6fYuH

PRIVATE BROWSING

27. Tor Browser
https://t.co/Bp2toBdBIo

28. Mullvad Browser
https://t.co/plwhSePjkh

29. LibreWolf
https://t.co/iSTg0nDoaa

30. Firefox
https://t.co/Y0UUluaokD

31. Ungoogled Chromium
https://t.co/b2d98YeX5U

BROWSER PRIVACY

32. uBlock Origin
https://t.co/x8PTPByImD

33. Privacy Badger
https://t.co/wsGdA2nLSn

34. ClearURLs
https://t.co/WBYfnXDxDt

35. NoScript
https://t.co/XXC1oE5PaL

PRIVATE SEARCH

36. SearXNG
https://t.co/8fho6bc0Ep

37. Whoogle
https://t.co/HGGkC763QS

38. Brave Search
https://t.co/L52xSgbOzr

NETWORK & DNS PRIVACY

39. Pi-hole
https://t.co/dpfkEQ3MWD

40. AdGuard Home
https://t.co/BuDisTrP4l

41. Mullvad VPN
https://t.co/j0tiOyf9Ek

42. WireGuard
https://t.co/R6oHy8eIoT

43. OpenVPN
https://t.co/ndgh4ar00y

PRIVACY-FOCUSED OPERATING SYSTEMS

44. GrapheneOS
https://t.co/cwjd7pZ3z1

45. CalyxOS
https://t.co/Qxhuyja1tk

46. Tails
https://t.co/NmwUi0o0M4

47. Qubes OS
https://t.co/1Y2RGtRmnb

PRIVATE PHOTO & MEDIA MANAGEMENT

48. Immich
https://t.co/7XQPYX8UPp

49. Jellyfin
https://t.co/FiFCanCIva

50. PhotoPrism
https://t.co/JKQ4FSguf2

The point isn't to install all 50.

Pick one area where you currently depend on a closed service.

Replace it.

Then move to the next.

Privacy becomes much easier when you treat it as a series of small upgrades instead of one massive lifestyle change.

Save this list.

Follow @KrishnaMohanS30 for free tools, open-source resources, tech jobs and career opportunities.

[Krishna @KrishnaMohanS30]

@MdSany2k8 Thanks for correcting I will check with my team and upload the new sheet

[Krishna @KrishnaMohanS30]

GLOBAL REMOTE SENIOR PROFESSIONALS — THIS ONE IS FOR YOU.

A fresh list of senior remote tech opportunities from around the world.

Roles across:

Software Engineering
Data Engineering
AI / ML
Data Science
Cloud & DevOps
Cybersecurity
Backend & Full-Stack
QA & Automation
SRE
Platform Engineering
Engineering Leadership

If you're an experienced tech professional looking beyond your local job market, this list is for you.

Find the roles that match your experience.
Check country eligibility.
Apply early.

GLOBAL REMOTE SENIOR JOBS:

https://t.co/TtnwGCHaE9

Save this.
Share it with someone looking for a global remote opportunity.

Follow @KrishnaMohanS30 for fresh tech jobs, remote roles and career resources.

[Krishna @KrishnaMohanS30]

GLOBAL REMOTE SENIOR PROFESSIONALS — THIS ONE IS FOR YOU.

A fresh list of senior remote tech opportunities from around the world.

Roles across:

Software Engineering
Data Engineering
AI / ML
Data Science
Cloud & DevOps
Cybersecurity
Backend & Full-Stack
QA & Automation
SRE
Platform Engineering
Engineering Leadership

If you're an experienced tech professional looking beyond your local job market, this list is for you.

Find the roles that match your experience.
Check country eligibility.
Apply early.

GLOBAL REMOTE SENIOR JOBS:

https://t.co/TtnwGCHaE9

Save this.
Share it with someone looking for a global remote opportunity.

Follow @KrishnaMohanS30 for fresh tech jobs, remote roles and career resources.

[Krishna @KrishnaMohanS30]

GLOBAL FRESHERS + ENTRY-LEVEL — THIS ONE IS FOR YOU.

Looking for your first tech opportunity?

I’ve put together a list of global fresher and entry-level jobs across:

Software Engineering
Data & Analytics
AI / ML
Cloud & DevOps
Cybersecurity
Backend & Full-Stack
QA & Testing
IT Support
Internships
Graduate & Trainee roles

You don’t have to limit your search to your home country.

Explore global opportunities.
Check your eligibility.
Apply early.

GLOBAL FRESHER + ENTRY-LEVEL JOBS:

https://t.co/wNXROrIc0U

Save this.
Share it with someone looking for their first tech opportunity.

Follow @KrishnaMohanS30 for fresh tech jobs, internships, free courses and career resources.

[Krishna @KrishnaMohanS30]

GLOBAL FRESHERS + ENTRY-LEVEL — THIS ONE IS FOR YOU.

Looking for your first tech opportunity?

I’ve put together a list of global fresher and entry-level jobs across:

Software Engineering
Data & Analytics
AI / ML
Cloud & DevOps
Cybersecurity
Backend & Full-Stack
QA & Testing
IT Support
Internships
Graduate & Trainee roles

You don’t have to limit your search to your home country.

Explore global opportunities.
Check your eligibility.
Apply early.

GLOBAL FRESHER + ENTRY-LEVEL JOBS:

https://t.co/wNXROrIc0U

Save this.
Share it with someone looking for their first tech opportunity.

Follow @KrishnaMohanS30 for fresh tech jobs, internships, free courses and career resources.

[Krishna @KrishnaMohanS30]

🚨 INDIA FRESHER & JUNIOR JOBS — 24 AUGUST 🚨

Looking for your first tech job?

I created a Google Sheet with Junior + Fresher job openings in India 👇

🎯 0–2 years experience
💻 Software Engineering
📊 Data / Analytics
🤖 AI/ML
☁️ Cloud / DevOps
🔐 Cybersecurity
🧪 QA / Testing
⚙️ IT & Support
…and more.

🔗 JOB SHEET:
https://t.co/IwWqL1Nb9V

📌 Save this post — I’ll keep sharing/updating opportunities.

🔁 Repost to help a fresher who is currently job hunting.

👤 Follow @KrishnaMohanS30 for:

→ Daily job opportunities
→ Free courses & certifications
→ Open-source tools
→ AI resources
→ Career resources
→ Tech opportunities

Your first job is out there. Keep applying. 🚀

[Krishna @KrishnaMohanS30]

🚨 INDIA FRESHER & JUNIOR JOBS — 24 AUGUST 🚨

Looking for your first tech job?

I created a Google Sheet with Junior + Fresher job openings in India 👇

🎯 0–2 years experience
💻 Software Engineering
📊 Data / Analytics
🤖 AI/ML
☁️ Cloud / DevOps
🔐 Cybersecurity
🧪 QA / Testing
⚙️ IT & Support
…and more.

🔗 JOB SHEET:
https://t.co/IwWqL1Nb9V

📌 Save this post — I’ll keep sharing/updating opportunities.

🔁 Repost to help a fresher who is currently job hunting.

👤 Follow @KrishnaMohanS30 for:

→ Daily job opportunities
→ Free courses & certifications
→ Open-source tools
→ AI resources
→ Career resources
→ Tech opportunities

Your first job is out there. Keep applying. 🚀

[Krishna @KrishnaMohanS30]

30 FREE Udemy Courses for GenAI Developers

You don't need another expensive AI bootcamp.

These 30 Udemy courses cover prompting, OpenAI APIs, LangChain, RAG, agents, local LLMs, automation and GenAI applications.

1. Generative AI in Practice
https://t.co/whha2hYbtv

2. Be a Generative AI Developer
https://t.co/U4V9Sq3ndH

3. Prompt Engineering with Python
https://t.co/o0ZtzhP3mn

4. Prompt Engineering with Python + ChatGPT API
https://t.co/qqfaqMPtw0

5. ChatGPT Prompt Engineering
https://t.co/OJ2egnRXNx

6. Prompt Engineering
https://t.co/Cg8qLQ5uyM

7. LangChain + LLM + Vector DB
https://t.co/jf6spFDFUn

8. Agentic Minds — CrewAI
https://t.co/gZL37W3HPn

9. AI Agents + n8n Automation
https://t.co/itDaVBpM1V

10. GenAI + BERT for Quant Finance
https://t.co/W6FNeFeKdq

11. GenAI for Financial Risk Management
https://t.co/8rjzalmlLZ

12. ChatGPT + OpenAI API Basics
https://t.co/IHJKsGYtO5

13. OpenAI API Development
https://t.co/Yp3jH1cOr4

14. Introduction to Generative AI
https://t.co/KdDi1qmrj4

15. AI for Beginners
https://t.co/DeVr1gFP9u

16. DeepSeek + Prompt Engineering
https://t.co/jQzYPqg3Gg

17. Generative AI + Prompt Engineering
https://t.co/PjK5VWoheG

18. Practical Generative AI
https://t.co/vAqDTRtY9j

19. ChatGPT Basics + Prompt Engineering
https://t.co/p35mgtHZPC

20. Practical Introduction to ChatGPT
https://t.co/hvJuXraY7K

21. Gemini AI Basics
https://t.co/7Lh7iMvo8c

22. Google Bard / Conversational AI
https://t.co/KnaBxSAwjK

23. Exploring ChatGPT
https://t.co/yR4jGHaUfX

24. GenAI for Faceless YouTube
https://t.co/rAfuvxbbQE

25. ChatGPT API + Python + Flask
https://t.co/ZDkaB0Izke

26. ChatGPT API Automation
https://t.co/WQeWgZvYDL

27. No-Code ChatGPT + OpenAI API
https://t.co/WM4kVapsA2

28. Build SaaS Tools with AI + ChatGPT API
https://t.co/vsV8G4QNHZ

29. Build an AI Academic Tutor with Ollama
https://t.co/lVIQAHngDq

30. FlowiseAI + LangChain
https://t.co/wDSWGsQXiX

If you're serious about becoming a GenAI developer, start here:

Python + APIs
↓
OpenAI API
↓
LangChain
↓
Vector databases
↓
RAG
↓
AI agents
↓
Local LLMs
↓
Build real applications

My top picks:

29 → Local Ollama + RAG
7 → LangChain + Vector DB
8 → CrewAI agents
13 → OpenAI API
16 → DeepSeek + local models
1 → GenAI architecture
30 → Flowise + LangChain

Important:

Udemy's free catalog changes frequently.

Check the course page before enrolling and confirm it currently shows Free.

Save this list.

Follow @KrishnaMohanS30 for free courses, AI tools, developer resources and tech jobs.

[Krishna @KrishnaMohanS30]

30 FREE Udemy Courses for GenAI Developers

You don't need another expensive AI bootcamp.

These 30 Udemy courses cover prompting, OpenAI APIs, LangChain, RAG, agents, local LLMs, automation and GenAI applications.

1. Generative AI in Practice
https://t.co/whha2hYbtv

2. Be a Generative AI Developer
https://t.co/U4V9Sq3ndH

3. Prompt Engineering with Python
https://t.co/o0ZtzhP3mn

4. Prompt Engineering with Python + ChatGPT API
https://t.co/qqfaqMPtw0

5. ChatGPT Prompt Engineering
https://t.co/OJ2egnRXNx

6. Prompt Engineering
https://t.co/Cg8qLQ5uyM

7. LangChain + LLM + Vector DB
https://t.co/jf6spFDFUn

8. Agentic Minds — CrewAI
https://t.co/gZL37W3HPn

9. AI Agents + n8n Automation
https://t.co/itDaVBpM1V

10. GenAI + BERT for Quant Finance
https://t.co/W6FNeFeKdq

11. GenAI for Financial Risk Management
https://t.co/8rjzalmlLZ

12. ChatGPT + OpenAI API Basics
https://t.co/IHJKsGYtO5

13. OpenAI API Development
https://t.co/Yp3jH1cOr4

14. Introduction to Generative AI
https://t.co/KdDi1qmrj4

15. AI for Beginners
https://t.co/DeVr1gFP9u

16. DeepSeek + Prompt Engineering
https://t.co/jQzYPqg3Gg

17. Generative AI + Prompt Engineering
https://t.co/PjK5VWoheG

18. Practical Generative AI
https://t.co/vAqDTRtY9j

19. ChatGPT Basics + Prompt Engineering
https://t.co/p35mgtHZPC

20. Practical Introduction to ChatGPT
https://t.co/hvJuXraY7K

21. Gemini AI Basics
https://t.co/7Lh7iMvo8c

22. Google Bard / Conversational AI
https://t.co/KnaBxSAwjK

23. Exploring ChatGPT
https://t.co/yR4jGHaUfX

24. GenAI for Faceless YouTube
https://t.co/rAfuvxbbQE

25. ChatGPT API + Python + Flask
https://t.co/ZDkaB0Izke

26. ChatGPT API Automation
https://t.co/WQeWgZvYDL

27. No-Code ChatGPT + OpenAI API
https://t.co/WM4kVapsA2

28. Build SaaS Tools with AI + ChatGPT API
https://t.co/vsV8G4QNHZ

29. Build an AI Academic Tutor with Ollama
https://t.co/lVIQAHngDq

30. FlowiseAI + LangChain
https://t.co/wDSWGsQXiX

If you're serious about becoming a GenAI developer, start here:

Python + APIs
↓
OpenAI API
↓
LangChain
↓
Vector databases
↓
RAG
↓
AI agents
↓
Local LLMs
↓
Build real applications

My top picks:

29 → Local Ollama + RAG
7 → LangChain + Vector DB
8 → CrewAI agents
13 → OpenAI API
16 → DeepSeek + local models
1 → GenAI architecture
30 → Flowise + LangChain

Important:

Udemy's free catalog changes frequently.

Check the course page before enrolling and confirm it currently shows Free.

Save this list.

Follow @KrishnaMohanS30 for free courses, AI tools, developer resources and tech jobs.

[Dhanian 🗯️ @e_opore]

DURABILITY IN SYSTEM DESIGN

Durability is the ability of a system to preserve data after it has been successfully written, even when failures occur.

In simple terms:

Durability = Your data survives failures.

If a system confirms that your payment, message, or file has been saved, that data should not disappear because a server crashes.

HOW DURABILITY WORKS

1. DATA REPLICATION

Store multiple copies of data across different servers.

Example:

→ Primary Database
→ Replica 1
→ Replica 2

If one server fails, another copy remains available.

2. PERSISTENT STORAGE

Store data on durable storage instead of temporary memory.

Examples:

→ SSDs
→ Distributed file systems
→ Cloud object storage

3. WRITE-AHEAD LOGS

Record changes in a durable log before applying them to the database.

If the database crashes, the log can be used to recover unfinished operations.

4. BACKUPS

Create periodic copies of important data.

Examples:

→ Daily database backups
→ Point-in-time recovery
→ Off-site backups

5. GEO-REPLICATION

Replicate data across different geographic regions.

If an entire data center goes offline, another region can still contain the data.

REAL-WORLD EXAMPLES

→ Amazon S3 is designed for highly durable object storage.
→ Databases use replication and transaction logs to recover from failures.
→ Banking systems maintain multiple copies and backups of critical transaction data.

DURABILITY VS AVAILABILITY

Durability:
→ Is the data still there?

Availability:
→ Can users access the system?

A system can be highly available but still lose data if it lacks proper durability mechanisms.

BENEFITS OF HIGH DURABILITY

→ Prevents data loss
→ Improves disaster recovery
→ Protects critical transactions
→ Increases customer trust
→ Supports business continuity

CHALLENGES

→ Storage costs
→ Replication overhead
→ Backup management
→ Recovery complexity
→ Cross-region synchronization

RULE OF THUMB

If losing the data would be unacceptable, design for durability from day one.

Grab System Design Ebook:
https://t.co/WIMretQFPE

[Krishna @KrishnaMohanS30]

@MansiCodez Python and Java

[Krishna @KrishnaMohanS30]

@YashHustle_22 Cursor