Self-directed project
Frontend Engineering with Prediction Game
Junior Front-End Engineer · Software Engineering · July 2026
A ProoV case study · educational project, not employment
Built a complete World Cup prediction game end to end: rendered the fixture board, implemented exact-result and result-only scoring, derived team strengths from real historical results, and used those strengths in a Poisson-based house bot. Also persisted and ranked player, bot, and friend totals in localStorage and shipped the finished experience to a live Netlify URL.
Graded against
- Scoring engine correctness30%
- Prediction model genuinely from real data25%
- Game completeness and leaderboard soundness25%
- Shipped and shareable: live deployed URL20%
Passed · pass mark 60/100
What stood out6
- Implemented the exact 5/2/0 scoring rule and passed all four canonical scorePick checks, including draw handling.
- Computed team attack/defense strengths from a real-results sample and used both teams' strengths in botPredict via a Poisson-based model.
- Built a full playable flow with fixture cards, score entry, scoring, and a ranked leaderboard that survives reloads.
- Shipped the game to a live Netlify HTTPS URL, making the project shareable and reviewable on any device.
- Leakage-Free Game Logic
- Data-Driven Prediction Modeling
The work I submitted17 tasks
9 tasks · 11 lines · HTML, JavaScript · 8 written answers · 581 words
- Lab OrientationHTML · 2 lines
- Example Score Pick46 characters
- Act2 Scoring FunctionJavaScript · 2.2k characters
- Act3 Compute Strength108 characters
- Act3 House Bot108 characters
- Act4 LeaderboardHTML · 2.8k characters
- Act1 Fixtures FormJavaScript · 3.8k characters
- Act5 Assemble2 lines
- Final Submission93 characters
- Lab Orientation115 words
- Example Score Pick1 word
- Act2 Scoring Function115 words
- Act3 Compute Strength1 word
- Act3 House Bot1 word
- Act4 Leaderboard97 words
- Act1 Fixtures Form143 words
- Act5 Assemble108 words
Summarised on purpose — the submitted code and writing stay private so this page cannot be reused as an answer key. The full submission sits behind the verified certificate.