Free

150 pattern-wise problems with test cases - no card, no catch

Start solving
PreparationStreetBuilt by an Architect, for Architects
TRISHULComplete learning tracks

TRISHUL

Complete learning tracks

Explore

Roadmaps

AI Architect21 phases · 63 projects · Multi-LLM, RAG & agentsEverything About System DesignLLD + HLD + theory · 76 patterns, 380 questions

Problem solving

Everything About DSA56 patterns covering 95% of interview questionsAlgorithmic Accelerator88 algorithms · 401 curated problems

Start free

150 Problem SheetFreeStory-driven problems for absolute beginnersAll TRISHUL tracksSee everything included in one place
Full Time Mentorship (FTM)Long Term Personalized Paradox

Full Time Mentorship (FTM)

Long Term Personalized Paradox

Explore

Tracks

3 Month SprintFocused push for one clear, near-term goal6 Month TransformationMulti-track rebuild · TRISHUL Elite included12 Month MasteryMost chosenZero to architect level · long-term guidance

How it works

The weekly cyclePlan, execute, review, re-plan - every weekMeet your mentorProof of work - every number publicly verifiable
1:1 MentorshipBook a single session

1:1 Mentorship

Book a single session

Explore

Career tracks

Become an AI Engineer 2026Roadmap to landing an AI engineering roleCrack a Remote JobPositioning, outreach and remote interviewsDSA / Algorithmic MasteryPattern gaps found and fixed on a callDevelopment MasteryArchitecture and code review with a senior

Interview prep

Mock InterviewFAANG-level round with honest feedbackInterview AcceleratorLast-mile prep before the real roundsResume TransformationRewritten to survive a 7-second screenCareer Guidance SessionWhere you are, where to go, what to do next
PricingPlans & access
Get Started
PreparationStreet
TRISHULComplete learning tracks
AI Architect21 phases · 63 projects · Multi-LLM, RAG & agentsEverything About System DesignLLD + HLD + theory · 76 patterns, 380 questionsEverything About DSA56 patterns covering 95% of interview questionsAlgorithmic Accelerator88 algorithms · 401 curated problems150 Problem SheetFreeStory-driven problems for absolute beginnersAll TRISHUL tracksSee everything included in one place
Full Time Mentorship (FTM)Long Term Personalized Paradox
3 Month SprintFocused push for one clear, near-term goal6 Month TransformationMulti-track rebuild · TRISHUL Elite included12 Month MasteryMost chosenZero to architect level · long-term guidanceThe weekly cyclePlan, execute, review, re-plan - every weekMeet your mentorProof of work - every number publicly verifiable
1:1 MentorshipBook a single session
Become an AI Engineer 2026Roadmap to landing an AI engineering roleCrack a Remote JobPositioning, outreach and remote interviewsDSA / Algorithmic MasteryPattern gaps found and fixed on a callDevelopment MasteryArchitecture and code review with a seniorMock InterviewFAANG-level round with honest feedbackInterview AcceleratorLast-mile prep before the real roundsResume TransformationRewritten to survive a 7-second screenCareer Guidance SessionWhere you are, where to go, what to do next
PricingPlans & access
Get Started
  1. About us
  2. What we do
  3. What we've built
  4. How it works
  5. How we build
  6. The founder

About Preparation Street

One platform, from yourfirst line of code to placement.

Preparation Street is an EdTech platform for DSA, Development, AI Engineering, System Design and DevOps. Structured learning paths, full-time personalized mentorship and 1:1 sessions - built and taught by a practising AI Architect, not a content team.

Start free See plans
1,00,000+
Engineers learning
5
Learning paths
1200+
Curated problems
220+
Patterns & algorithms
4.98/5
Learner rating

01 - What we do

Four ways in.One platform.

Start free, go premium when you want the depth, bring a mentor in when you want the speed. Everything shares one account, one progress trail and one certificate wall.

  • Free forever150 Problem Sheet150 story-driven problems across 3 progressive sprints - programming foundations for absolute beginners, zero cost.Start free
  • 4 premium pathsTRISHULAI Architecture, System Design, Algorithms and DSA - every premium path, benchmarked against the market, in one platform.Explore TRISHUL
  • 3, 6 or 12 monthsFull-Time Personalized MentorshipA sprint-based mentorship - your week planned, your progress reviewed every weekend, mock interviews and re-planning until you're placed.See FTM plans
  • 45 min sessions1:1 MentorshipBook a single focused session on exactly what you need - AI engineering, DSA, resume, mock interviews, career strategy and more.Book a session

02 - What we've built

Not a course library.A full curriculum.

Every path is written, sequenced and taught by the founder - here is exactly what sits inside the platform today.

  • Prong IAI Architect21 phases · 63 projects
  • Prong IIEverything About DSA10 categories · 56 patterns
  • Prong IIIAlgorithm Accelerator22 categories · 88 algorithms
  • Prong IVEverything About System Design9 categories · 76 patterns
  • Free forever150 Problem Sheet150 problems · 3 sprints · test cases

03 - How it works

Learn, practise,get mentored, prove it.

  1. 01

    Learn

    Follow a structured path - phases, sprints and patterns in the order that builds real depth.

  2. 02

    Practise

    Every problem, topic and project is tracked, so you always know exactly where you stand.

  3. 03

    Get mentored

    When you need a human in the loop - FTM for the long run, 1:1 sessions for a single push.

  4. 04

    Prove it

    Finish a path and earn a certificate with a credential ID anyone can verify.

04 - How we build

Four rules everythinghere is held to.

Architect level, not tutorial level

Everything is taught the way it is used in production - why it works, not just how.

Patterns over memorising

Recognise the pattern and the problem opens up - instead of memorising a thousand answers.

No fluff

Only what actually works - built from the path that took our founder from a Tier 3 college to 10+ remote offers.

Built for the AI era

DSA and fundamentals alongside AI engineering - multi-LLM, RAG and agents - the stack teams hire for now.

Prince Singh - AI Architect & Mentor AI Architect Founding Engineer
100K+
Community
40K+
Sessions
4.98/5
Rating

The man behind it

Tier 3 college.10+ remote jobs. AI Architect.

Hey! I'm Prince Singh. I came from a Tier 3 college with no senior, no network, no roadmap. Just raw hunger to figure it out.

I cracked 10+ remote SDE jobs not because I was the smartest in the room, but because I built the right systems, followed the right patterns, and never stopped shipping.

Today I build production AI systems - LLMs, RAG pipelines, multi-agent architectures - at a Founding Engineer level. And I teach everything I know on Preparation Street.

1,00,000+ engineers are already on this journey. Come build with us.

Get started now See the full proof of work
@princesinghcse@princesinghcse 10K+ subscribers
Prince SinghPrince Singh 72K+ followers

Start where you are.Go as far as you want.

Start free Explore TRISHUL
Support
PreparationStreet
PreparationStreetBuilt by an Architect, for Architects
AboutMentorPrivacy PolicyTerms & ConditionsCancellation & Refund

Copyright © 2026 Preparation Street  |  All rights reserved