Kimlic. Blockchain-based KYC

Users interacting with multiple FinTech and Web3 services were forced to repeat identity verification for every new platform – a process that took 15-20 minutes each time and exposed sensitive documents to dozens of separate databases. For businesses, each KYC check cost $5-15 and added days to onboarding timelines. The client needed a decentralized identity layer where users verify once and reuse credentials across platforms, while meeting KYC/AML regulations in 4+ jurisdictions with 99.8% verification accuracy.

The team aimed to:

• Enable secure, reusable identity verification on the blockchain.
• Reduce the need for repeated KYC checks for users and service providers.
• Preserve user privacy while complying with regulatory requirements.
• Provide businesses with compliant, scalable KYC APIs.

We brought a team with hands-on experience in blockchain-based identity systems, compliance-driven architectures and high-load verification pipelines. Our approach combined on-chain credential storage design with cloud-native event processing, delivering verified identity primitives that scale horizontally. We worked in close collaboration with the client’s compliance team to ensure every design decision met regulatory requirements across target jurisdictions from the start.

The backend is built with Elixir and Erlang to provide a highly reliable, fault-tolerant foundation for identity workflows, verification logic and API services. Event-driven communication and state changes are handled through scalable messaging patterns, while real-time processing ensures immediate, consistent updates to identity status. Deployed on AWS and Kubernetes with PostgreSQL as the primary data store, the platform is supported by a modern NextJS frontend and fully automated infrastructure managed with Terraform.

Kimlic features a modern frontend built with React and Next.js for both users and business clients. Users can manage their verified identities and consents through a secure web interface, while businesses can access dashboards and APIs to request and validate KYC proofs.

PostgreSQL stores identity metadata, verification states and audit logs at scale. All components are deployed on Kubernetes and hosted on AWS to ensure high availability, scalability and fault tolerance.

Kimlic enables users to complete identity verification once and store cryptographic proofs on the blockchain. Verified credentials can then be reused across multiple services without resending documents.

Sensitive personal data is not broadly exposed. Users share only the necessary proof with service providers while maintaining control and consent at every step.

The platform provides secure APIs for fintech, exchanges and Web3 applications to request KYC verification, validate identity status and meet regulatory obligations efficiently.

We built a portable credential system that eliminates redundant identity checks by storing verified data on-chain. Our solution enables users to complete onboarding 60% faster than traditional KYC flows. The platform we delivered processes 10,000+ identity verifications daily across integrated platforms – turning a multi-day friction point into a seamless experience.

We engineered blockchain-backed credentials that achieve 99.8% verification accuracy with tamper-proof audit trails built into every transaction. Our team ensured the system meets KYC/AML regulatory requirements across 4 jurisdictions and has maintained a 100% compliance audit pass rate since deployment.

We architected an event-driven, cloud-native infrastructure that handles 3,000+ concurrent verification sessions with sub-3 second response times. Our system maintains 99.9% uptime with auto-scaling during peak onboarding periods, ensuring the platform never becomes a bottleneck as the client’s partner network grows.