Online Slot Casino Platform Development

I need a seasoned developer or team to create a complete online casino platform centered on slot games only. Each game must feature bonus rounds, progressive jackpots, and multiple paylines, all powered by a certified RNG so every spin is provably fair... (Budget: £750 - £1500 GBP, Jobs: Game Development, HTML5, JavaScript, Payment Gateway Integration, PHP, Unity, Unity 3D, Web Development)