code5x
Services · Software

Custom software for the parts of a product that aren't visible on screen — the APIs, the data model, the migration that has to run without losing a single record.
Desk with a laptop and dual monitors showing codeAPIs · data · architecture
What we build

Backend systems and REST/GraphQL APIs for products with real business logic — accounts, payments, permissions
Third-party integrations: payment gateways, CRMs, Salesforce, messaging platforms
Data migrations and ETL pipelines, with validation and batch verification so nothing gets lost in the move
Database architecture and schema design — PostgreSQL and MongoDB, normalized for the actual access patterns
Authentication, authorization, and OAuth middleware for securing application routes
System architecture decisions made upfront, before the code that has to live with them
Stack

Node.jsPythonGraphQLAWSKubernetesTerraformKafkaPostgreSQLMongoDB
Next step

Have a backend or migration to get right?