Web application development
Full-stack web applications, from greenfield products to rebuilds of existing systems. We build frontend, backend, and everything in between, and we deliver code your team can keep working with after handover.
Services
What we deliver.
KYC Code Systems builds secure web applications and maintains them after launch. Our work spans greenfield products, integrations with external services, and technical review of existing systems.
Backend & API engineering
Server-side engineering: REST and GraphQL APIs, DB architecture, background processing, message queues, and scalable architectures.
Secure engineering
Security is engineered in from the start, not bolted on later. Authentication, encryption at rest and in transit, least-privilege access principle, audit logs, and secure PII handling are standard practice in everything we ship.
Third-party integrations
We connect and integrate web applications with external APIs, payment systems and identity verification providers. KYC, AML, and compliance flows are a specialty: we wire provider SDKs, webhooks, and admin tooling into real user lifecycles.
Code audit & technical review
We review existing codebases for security gaps, maintainability issues, and architectural risks. You get a written report with concrete findings, prioritised by impact, and a proposed action plan. A common kickoff for teams inheriting legacy code.
Maintenance & ongoing support
We keep existing codebases running: dependency upgrades, security patches, bug fixes, and incremental feature work. Hourly or retainer-based, with weekly status updates and clear ownership of what we touch.
How we engage
Fixed-price projects
For well-defined scope. We provide a written estimate after a research and a review of your requirements.
Hourly / time-and-materials
For ongoing work or projects where scope will evolve. Weekly time reports and invoices.
Floating cost
For teams that need an audit of existing systems and solutions.
Tell us about your project.
We respond to every enquiry within two business days.