We designed and built Icon's core web application and financial platform across employer, individual, and administrative experiences. Employers could onboard their organization, connect bank accounts, establish plans, process contributions, and manage activity through a dedicated dashboard. Individuals could join an employer plan, create an IRA account, connect external banking, make contributions and withdrawals, and manage their account through their own dashboard. Behind the experience, we architected an API layer connecting onboarding, KYC verification, account creation, money movement, and trading to third-party financial infrastructure. This integration connected Icon to the U.S. banking system and ACH network while supporting compliance, IRA account management, contributions, withdrawals, and trade execution.