Crypto, TON and GRAM development
Crypto backend · TON · GRAM · Wallets · Ledger · P2P
Crypto, TON and GRAM development
I develop backend logic for crypto products, TON/GRAM integrations, wallets, transactions, internal balances, P2P mechanics and related financial workflows.
These systems require explicit state transitions, precise arithmetic, idempotent processing, audit history and protection of every critical operation.
Product components
Wallet integrations
Address management, deposit detection, withdrawal workflows and blockchain provider integration.
Internal ledger
Balances represented by immutable operations rather than values that can be changed without history.
P2P workflows
Orders, matching, reservations, confirmation states, disputes and controlled release of funds.
Administration and monitoring
Search, operation review, limits, alerts and manual handling of ambiguous states.
Engineering approach
Financial state must be reconstructable from recorded operations, not guessed from the latest balance value.
Discovery
I clarify the users, business process, data sources, integrations, constraints and failure scenarios before choosing an implementation.
Requirements · workflows · risksArchitecture
I define the application structure, API boundaries, data model, permissions, queues and external integration points.
Backend · API · database · securityIncremental delivery
The work is split into testable stages so that the critical path can be reviewed before the entire system is complete.
Milestones · reviews · predictable scopeLaunch and support
I verify real workflows, logging, error handling and background jobs, then help maintain and extend the solution.
Monitoring · logs · support
Risk controls
Idempotency
Repeated callbacks or requests cannot repeat a credit, debit or transfer.
State machines
Only valid transitions are allowed and concurrent actions are handled deliberately.
Auditability
Important decisions and manual actions retain actor, time, reason and related operation identifiers.
Technology and delivery
Expected result
A crypto backend with traceable balances, explicit transaction states, controlled failure recovery and operational tools for reviewing sensitive actions.
Crypto Backend · TON · GRAM · Wallets · Ledger · P2P · Queues · Audit
Discuss your project
If you have a project involving Python, Laravel, Node.js, CRM, Telegram, AI/RAG, API integrations, automation or TON/GRAM logic, send me a short description of what you need.
You can simply explain what exists now, what is not working, what outcome you expect and which services are already involved.