Sigmaschool
90-Day Roadmap · v1 · AI-assisted · Human-verified
The 90-Day AI-Native Developer Roadmap

From your first line of code to a job-ready AI builder.

A project-based roadmap of 16 weekly missions — build real apps, use AI properly, deploy your work, and create job-ready proof. AI from Day 1, as a tool, never a crutch.

Sigmaschool students building software together around a table
90
Days · 12 weeks
4
Phases
16
Missions
+4
Honours extensions
What this really is

We don't teach you to code.
We turn beginners into real developers who build with AI.

Most courses hand you videos and a certificate. We hand you 16 real missions, a deadline, and a team that won't let you coast. You finish able to take a vague problem, design it, build it, debug it, ship it, and explain every decision — using AI the way working engineers actually do.

01The goal

Become a real developer with AI-native skills.

Not a prompt-monkey. Not a tutorial-follower who freezes the moment the video stops. The goal is a developer who can sit in front of an unfamiliar problem and think, build, and ship — with AI as a force-multiplier, not a replacement for understanding. That's what makes you hireable in an AI-native world.

02The mission

A mission is a real thing you build, ship, and defend — every single week.

No passive lectures. Each of the 16 missions gives you an outcome, a deadline, and a pass gate. You learn exactly what you need to ship it — then you ship it: a GitHub repo, a live deployed link, and a Loom walkthrough explaining what you built and why. The rule that runs the whole programme: if you can't explain it, you can't submit it.

03The philosophy

AI from day one — as a tool, never a crutch.

Every mission has an explicit AI policy that escalates as you grow — from AI as Tutor, to Reviewer, to directing an AI coding Operator. AI explains, generates, and reviews; you decide, verify, and own the result. We grade your understanding, not your output — which is why proof beats promises and nobody hides behind a generated answer.

04The structure

16 missions. 5 phases. 90 days. One weekly loop.

Every mission runs the same engine — Learn → Build → Deploy → Explain → Review → Improve — so the habit compounds week after week. The phases take you from Foundations to Real Apps to AI Products to a Capstone, with optional Honours missions for stronger candidates who want to go further.

05The rhythm

Missions launch Mondays, 7:30–8:30PM. Plan for 25+ hours a week.

Every mission kicks off live on Monday evening (GMT+8) — deliberately after work and after class, so people with real jobs and real lives can actually show up. From there, daily Buildrooms and morning Unblock Hours keep the week moving. We don't clock your hours — but real skill takes real reps, so expect to invest 25+ hours a week actually building.

7:30–8:30PM
Monday launch · GMT+8
25+ hrs
Per week building
5 days
Live Buildrooms / wk
24/7
Discord, all timezones
06Accountability

Green, Yellow, Red. We catch you before you fall.

Every learner carries a live status — it's how we keep the programme honest and keep you moving when things get hard. We measure shipped, explained missions, never attendance. The moment momentum slips, a real human reaches out — not a reminder email.

Green · on track, shipping on time Yellow · slipping — a mentor reaches out Red · two missions missed — we talk, honestly
How the programme works

Four operating principles.

01 / Mission

Every week ships something real.

You don't watch videos. You deploy a real app, repo, or product feature — and explain how it works.

02 / Pass Gate

You can defend what you built.

You don't pass a week until you can explain the decisions, edge cases, and what AI helped with vs. what you verified.

03 / AI Workflow

AI-assisted, human-verified.

AI explains, generates, and reviews. You decide, verify, and own the result. Every mission has an AI usage log.

04 / Build in Public

Proof > promises.

Every mission ends with a GitHub repo, deployed link, Loom, and public LinkedIn + X log entry.

AI-native from day one

How much AI is allowed each mission.

Every mission has an explicit AI policy. AI is treated as a tool you direct, not a substitute for understanding. The policy evolves as missions progress — and there's one mandatory NO-AI gate to prove independent debugging.

🤝
AI as Tutor
Missions 1, 2, 4, 5

AI explains concepts, debugs errors, suggests edge cases. You write code, decide, and verify. AI does NOT generate work you can't explain.

🔎
AI as Reviewer
Missions 3, 6–8, 15, 16

AI reviews architecture, suggests refactors, finds root causes. You accept or reject every suggestion and verify behaviour yourself.

🎛️
AI as Operator
Mission 10

You direct an AI coding agent (Codex) through a full ship cycle — spec, plan, diff review, approve, deploy. You approve plans, reject bad diffs, and own rollbacks.

🛠️
AI as Product
Missions 9, 11, 14

AI is the feature itself. You design prompts, protect API keys, handle limitations, write golden datasets and run evals on output quality.

🧑‍💼
AI as Teammate
Mission 12

AI drafts PRs, case studies, outreach, resume bullets. You verify every claim is truthful. Every mission has an AI usage log — transparency is the standard.

🚫
AI OFF (Gate)
Mission 13 · Optional

NO AI during the 4-hour Debugging Gauntlet. You debug from docs, DevTools and code reading only. Proof you can think without the autocomplete.

💳

Tools, accounts & costs — read this

Most of the stack runs on free tiers — GitHub, Vercel (Hobby), and Supabase (Free) are enough for the whole programme. AI tooling is the exception:

  • Agentic coding (Missions 10 & 15): we use OpenAI Codex — there's a free trial. Beyond it you may need a paid OpenAI / ChatGPT subscription or API credits.
  • AI product features (Missions 9, 11, 14): these call the OpenAI API, which is pay-as-you-go by token.
  • Production readiness (Mission 16): some monitoring / alerting services may need a paid tier beyond free limits.

You are responsible for your own accounts, credits and tokens — including any paid subscription or API usage beyond free trials and free tiers. Always set a billing cap, and never commit an API key to GitHub.

How it works · the weekly engine

Your week has a heartbeat.

A mission a week, built live with your cohort. We don't track your hours — we care whether you ship the mission and can explain it. The Programme is intensive, but the structure is yours.

Two Sigmaschool students pair-programming at a laptop during a live Buildroom session
Pair-programming in a live Buildroom
🔨 Live every weekday 7:30 – 8:30 PM · Mon–Fri · GMT+8

Daily Buildroom

The daily anchor — one hour, live with mentors and your cohort. Build alongside others, ship together, debug together. Skip a session and someone will text you the same day.

  • Mentors live on camera every session
  • Cohort mates pair-programming in breakout rooms
  • Daily push: ship what you said you would
Unblock Hours
7:30 – 8:30 AM · Mon–Fri

Morning drop-in if you're stuck. 1-on-1 with a mentor to break through whatever's blocking your mission before the day starts.

📹
Mission Submission
When you ship it

GitHub repo + deployed link + a Loom walkthrough explaining what you built and why. That's how we test understanding — not attendance.

💬
Discord, Always-On
24 / 7 · all timezones

Mentors and peers in the same channels you are. Async help when you don't need to schedule a call.

How it works · the team

You're not figuring this out alone.

An entire team is in your corner — from the first line of code to a signed offer.

Education Team

👩‍🏫 Instructors

Deliver the curriculum. Deep subject-matter expertise, and genuinely there to teach and mentor.

Education Team

🧑‍💻 Teaching Assistants

Help you troubleshoot code, understand concepts, and finish your missions when you're stuck.

Careers Team

🤝 Placement Officers

Maintain hiring-partner relationships and help place graduates into the right roles after the Programme.

Careers Team

🎯 Career Coaches

Guide your job search — resume, interview prep, and navigating offers.

Operations Team

🗓️ Programme Manager

Runs the operations end to end, from scheduling to smooth weekly delivery.

Operations Team

💚 Student Success Manager

Focused on retention and momentum — academic support and helping you over the hurdles.

How it works · accountability

We catch you before you fall.

Every learner has a status. It's how we keep the Programme honest — and how we keep you moving when things get hard. We don't measure your time; we measure shipped, explained missions.

Green

On track

Shipping missions on time, submitting Loom walkthroughs, asking good questions. Keep building.

Yellow

Slipping

Submission late or thin. A mentor reaches out — short call, recalibrate, no judgment.

Red

Two missions failed in a row

We pause and have a real conversation about pace, fit, and the path forward.

How it works · platform & community

Everything in one place.

You learn what you need to ship each mission — from Sigmo lessons, your mentor, the cohort, Discord, and AI.

A Sigmaschool cohort together — students, mentors and alumni in one community
One cohort, one community — mentors, peers and alumni

📚 Sigmo

Our learning platform — ~135 micro-lessons across 13 modules. Pull exactly what a mission needs, when you need it. A guided path, not an endless course library.

🔨 Live Buildroom

Daily cohort build sessions + morning Unblock Hours. Real humans, live, every weekday.

💬 Discord community

Your cohort, mentors, and alumni in one always-on space. Pair up, swap wins, get unstuck async.

🚀 Build & proof stack

GitHub, Vercel, and Loom — where you ship, deploy, and prove understanding on every mission.

🤖 AI tooling

OpenAI Codex for agentic coding and the OpenAI API for product features — used responsibly, with an explicit policy per mission.

🎓 Careers engine

Portfolio, case studies, mock interviews, hiring-partner intros, and a 30-day job-search plan — built into the final missions.

Want the full programme — mentors, cohort, placement?

This roadmap is the curriculum. The Programme wraps it in live Buildrooms, a team in your corner, and a job-readiness engine.

The 16 missions

The roadmap, mission by mission.

12 core missions + 4 optional honours, grouped by phase. Every mission follows the same loop. Tap any card for the full brief.

Every mission follows the same rhythm
Learn Build Deploy Explain Review Improve
What you graduate with

A body of proof — not a certificate.

By the end of the 90 days, the goal is proof you can build, debug, deploy, explain and improve real software. Judged by one question: “If an employer asked why they should trust this beginner, what proof can you show?”

Sigmaschool graduates celebrating after completing the AI-native developer programme
From first line of code to job-ready in 90 days

📦 Proof assets

  • 4–6 deployed projects
  • 2–3 polished portfolio projects
  • 1 AI-enabled capstone
  • GitHub profile + history
  • Portfolio website
  • Resume + LinkedIn profile
  • Project case studies
  • Loom demos + debugging walkthroughs
  • PR / code-review sample
  • Mock interview practice
  • Job application tracker
  • 30-day job search plan

🛠️ What you can do

  • Build frontend apps
  • Build full-stack apps
  • Use APIs & connect databases
  • Implement authentication
  • Deploy apps
  • Use AI as a dev tool from Day 1
  • Build AI-powered product features
  • Debug issues & read documentation
  • Modify existing code
  • Create pull requests & review code
  • Explain & present your work clearly
  • Handle beginner technical interviews