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48H Paid Engineering Challenge100% OnlineTop builders get job offers
BUILD ITSHIP ITWIN IT!
Total Prize Pool · Up to
€0
Grand prize · company bounties · people’s choice award
A 48-hour paid engineering challenge. Pick a real task from a hiring company, ship it with AI, and win real cash — or get hired directly by the team you built for.
Everything happens online. Pick a real task, build with AI, ship in 48 hours. Judges score publicly. Top builders win cash — and hiring managers are watching.
01Tasks TBA
BROWSE TASKS
Real dev challenges posted by hiring companies — AI features, backend integrations, automation. Each task comes with a brief and optional starter repo.
02
LOCK YOUR SPOT
Register below. Your spot is confirmed instantly. The 48-hour window starts the same time for everyone when the challenge opens.
03
BUILD WITH AI
48 hours. Fork the starter repo or create your own. Build with AI as a core part of the solution. Submit your repo link and a short note explaining what you built and why.
04
WIN & GET HIRED
Companies review your code and submission note directly on the platform. Top submissions win the prize. Every company is actively hiring — your repo is your interview.
How Judging Works
EVERY SOLUTION MUST USE AI
A paid engineering challenge with real constraints. Each company posts a task brief and optional starter repo. You fork it (or create your own), build with AI as a core part of the solution, and submit a repo link plus a short note. Companies review your code directly — no pitch deck, no whiteboard. If you’ve shipped AI tooling before, this is built for you.
AI is core to the solution — visible in the code and explained in your submission note. Cosmetic use doesn't count.
2
Problem Fit
Does your solution solve the company's stated task? Their brief defines the constraints — your job is execution.
3
Code Quality
Clean, readable code that could land in a real codebase. Judges read the repo, not just the output.
4
Submission Note
A clear written explanation of what you built, why the AI choices, and how to run or review it. Required for repo-access tasks.
5
Working Output
A deployed URL or runnable result helps — but judges evaluate the repo directly. Some tasks don't need a public URL.
Prize Breakdown
UP TO €5,000 UP FOR GRABS
+€0
Grand Prize
Best overall AI solution across all tasks. Selected by the judge panel.
€0
Company Prizes
Each company funds a per-task prize for the best solution to their specific challenge. Top 3 submissions per task get paid.
Per-Task Prize Distribution · Top 3 Submissions Get Paid
Illustrative split based on a single company task prize — not the total pool.
1st Place60%
2nd Place25%
3rd Place15%
Winner takes most
Runner-up
3rd place
GETTING HIRED IS THE REAL PRIZE
Every company posting a task is actively hiring. Your submission is your interview — judges are the hiring managers. Ship something real, get hired on merit.
Post a real task. Engineers compete to solve it in 48 hours with AI. You see working code built for your actual problem — then hire the best builder directly. Only 5 company slots per edition.
Prize contribution
Goes entirely to engineers. Your only upfront cost.
€150–500
Placement fee
Only if you hire. No percentage, no recruiter markup.
€999 flat
REAL SIGNAL
See working AI-powered code, not CVs. Engineers solve your actual problem under real time pressure.
AI-FIT TALENT
Every submission proves practical AI skills on a real task — not whiteboard theory.
MEET BUILDERS
Online showcase after the challenge. Review all submissions and reach out to the ones you want.
€150–500 TOTAL
Your prize contribution is your entire assessment cost. No agency fees, no recruiter markup.
Participation in DemoDay does not guarantee employment. Companies reserve the right to evaluate submissions independently and are under no obligation to extend a job offer to any participant, including top-ranked candidates. Prize awards and hiring decisions are made solely at the discretion of each participating company.