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Custom Utility Software Development for Billing, Monitoring & Operations
We develop custom billing, monitoring, and operations management systems for SaaS platforms, IT infrastructures, fintech, telecom, and other B2B domains. We integrate automation, real-time reporting, transaction processing, APIs, and business-specific logic tailored to your workflows.
Why should you order this software from us?
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Fully custom-built — no limits of boxed solutionsYour business logic defines the architecture. No compromises.
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Turnkey integration with your existing infrastructure
No need to rebuild your business — we embed the solution into your current processes.
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Strong focus on security and calculation accuracy
We ensure reliability: data protection, backups, and full audit trails.
Top 6 key capabilities
Full billing lifecycle
Support for any billing model — subscriptions, pay-as-you-go, hybrid, multi-currency.
Real-time monitoring module
Track servers, transactions, and user actions with instant alerts and reports.
Payment systems and banking integrations
Stripe, PayPal, LiqPay, banking APIs, webhooks, and encrypted notifications.
Flexible pricing and discount management
Dynamic rules, custom conditions, promotions, and personalization.
Role-based access control
From end users to administrators and auditors — full access management.
Automated reporting and data exportотчётность и экспорт данных
CSV, PDF, Excel, email notifications, and scheduled reports.
Ready to replace your legacy billing system with a custom solution?
Let’s discuss how to combine monitoring, alerts, and finance in one platform
Testimonials
Мы заказывали у KISS Software анимацию для 2D-платформера. Ребята сразу поняли нашу стилистику, предложили интересные решения по эмоциям персонажей, а результат превзошёл ожидания. Игроки отмечают именно «живость» анимации. Будем работать ещё.
Андрей
гейм-дизайнер
Нужно было подключить аутсорс на этапе риггинга и внутриигровых синематиков под Unreal Engine. KISS вошли в проект аккуратно, без долгих вводных, всё отдали в срок, багов — ноль. Отличная техничка, быстрая реакция и понимание продакшн-процесса.
Михаил
продюсер, студия разработки игр
Уже третий проект делаем с командой KISS — всегда всё прозрачно, по делу и вовремя. У них реально хорошее чувство гейм-драмы и движущейся композиции. Отдельно ценим их подход к оптимизации под мобильные платформы.
Денис
CEO
Этапы разработки
The result is a centralized system that controls everything — from subscriptions and payments to technical monitoring and KPIs. Reliable, scalable, and adaptable to your architecture.
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Discovery and analysis
We analyze your current billing flow and stakeholders: accounting, finance, support, and clients. Review existing tools (Excel, CRMs, third-party billing), identify bottlenecks, manual steps, and risks. Conduct sessions with finance, engineering, support, and CTOs. Define monitoring needs and automation scope. Produce system specification and target architecture.
Time to deliver
~ 1-2 days
Module architecture design
Design clear separation of modules: billing, monitoring, analytics, APIs, logging, security. Define scenarios: invoicing, subscription calculation, overuse handling, auto-blocking, alerts. Integrations with banks, gateways, CRMs, and user databases. Role design: accountant, client, supervisor, admin. Offline scenarios and scalability included.
Time to deliver
~ 2-4 days
UX & UI for multiple roles
Interfaces for payments, reports, subscriptions, tickets, real-time monitoring. Clean admin panel, mobile dashboards for executives, automated PDF reports. Logs visualization, metrics charts, status indicators. No-code tariff and integration setup. High performance and data protection focus.
Time to deliver
~ 3-7 days
Development and automation
Implement billing logic: triggers, auto-invoicing, recalculations, fiscal docs, taxes, currencies. Deploy monitoring: event-based, resource-based, SLA monitoring (Prometheus, Zabbix, or custom). Build APIs for external systems. Alerting and escalation flows. Encryption, access control, logging, and auditing included.
Time to deliver
~ 5-15 days
Testing and launch
Validate all calculations — manual and automated. Simulate incidents, payment failures, high load, connectivity issues. Test monitoring and alerts in production-like conditions. Train teams, deliver documentation. Pilot rollout, then scale.
Time to deliver
~ 2-4 days
Support, metrics, and growth
Ongoing support: updates, SLA, hotline. Add new features: custom reports, tariffs, currencies, client types. Analyze KPIs: invoicing speed, incidents, overdue payments, alert efficiency. Performance optimization and zero-downtime releases.
Time to deliver
~ 1-2 days
Technologies and tools we use
Java
Javascript
MySQL
PHP
Java
Javascript
MySQL
PHP
FAQ
Yes. We build custom integrations, including banks and local providers.
Yes. Invoicing, sending, reminders, and notifications are fully automated.
We use encryption, audit logs, access control, two-factor authentication, and API protection.
Want full control over billing and monitoring in one system?
We’ll show how to automate calculations, control, and operations for your business
