Manual data entry
The team spends hours re-entering information between systems instead of focusing on higher-value business tasks. Every manual step is a potential error.
Custom software development
Connect your systems. Once_
Connect your systems. Once_
and for good
We integrate ERP, CRM, HR, healthcare, banking systems, e-commerce, and payment gateways and KSeF— eliminating data silos and manual work. 20 years of experience in environments where mistakes are costly. Projects for mBank, Medicover, TUI, and Millennium Leasing.
20+
years on the market
150+
delivered projects
75%
client retention
Trusted by_
01 · Problem framing
Data islands cost you more than you think_
IT system fragmentation — known as data silos — affects companies of every size. Employees lose hours manually re-entering information between incompatible applications, and you lose money on errors, delays, and missed opportunities.
No consistent view of the customer
The customer is asked for the same information multiple times. Personalizing offers and building long-term relationships becomes impossible. Frustration on both sides.
Reports from multiple sources
Creating comprehensive reports requires gathering data from different sources — a tedious, error-prone process that often leads to poor management decisions.
02 · Definition
What is IT systems integration_
IT systems integration is the process of connecting different IT systems, applications, and databases to create a unified and consistent operational environment.
The main goal is to ensure smooth data exchange between systems, eliminate information duplication, and automate business processes.
This allows organizations to achieve higher efficiency, reduce operational costs, and improve the quality of decisions based on consistent, up-to-date data.
Types of integration
A2A — Application to Application
Connecting different applications within a company (ERP ↔ CRM ↔ HR) so information flows without human intervention.
Data-level integration
Ensures information consistency across different databases — a single source of truth for the entire organization.
BPM — business process integration
Connecting end-to-end processes, e.g. from an order in a store all the way to accounting in ERP and warehouse shipment.
Integration with external systems
Communication with suppliers, banks, insurance companies, or payment systems (PSD2, KSeF).
03 · Integration methods
Three proven approaches to systems integration_
Each method has its use case. After the audit, we recommend an approach tailored to your scale, budget, and regulatory requirements.
METHOD / 01
Integration via API
Application Programming Interface — the most popular and effective method for integrating IT systems. Uses defined interfaces for automatic data exchange between applications, eliminating manual re-entry.
Ideal for ERP, CRM systems and mobile applications requiring real-time synchronization. API architecture supports building flexible, scalable solutions.
METHOD / 02
Integration platforms and middleware
Software that mediates between different applications. Simplifies integration with ready-made tools for managing data flow, format transformation, and operation monitoring.
ESB (Enterprise Service Bus) type middleware enables centralized integration management — reduces maintenance costs and speeds up the deployment of new connections. Recommended for complex corporate environments.
METHOD / 03
EDA is particularly effective in environments requiring high scalability, flexibility, and real-time processing. Ideal for fintech, e-commerce, and booking systems.
Event-driven architecture
Event-driven architecture — systems communicate through asynchronous events (e.g. a new transaction, customer update).
04 · Architecture
Architecture built to last for years_
A properly designed architecture is the foundation of effective integration — it affects flexibility, scalability, and fault tolerance. We always choose the model based on business goals, not technology trends.
Types of integration
Service-Oriented Architecture
Classic approach with clearly defined services. Works well in corporate environments with many legacy systems.
Microservices
Independent, scalable components. Ideal for modern platforms and projects requiring rapid iteration.
Event-Driven Architecture
Asynchronicity and real-time processing. Essential for fintech, e-commerce, and high-event-volume platforms.
Technology stack
We design all integrations with the highest privacy and auditability standards in mind.
Security and compliance
We design all integrations with the highest privacy and auditability standards in mind.
05 · Specialization
Payment and finance integration_
Money doesn't forgive mistakes. We integrate payment gateways, banking systems, KSeF, and split payment mechanisms — with auditability required by regulators and accounting departments.
01 / GATEWAYS
Payment gateways
Integration with PayU, Przelewy24, Stripe, Adyen, Tpay, Blue Media. Cards, BLIK, installments, recurring payments.
02 / OPEN BANKING
Open Banking PSD2
AIS and PIS — account access, payment initiation, retrieving bank statements. Full PSD2 compliance.
03 / E-INVOICES
KSeF e-invoices
National e-Invoice System — issuing, sending, and receiving structured invoices. We have experience with volumes of 50,000+ invoices annually.
04 / SPLIT PAYMENT
Split payment mechanism
MPP support, VAT taxpayer whitelist, automatic VAT amount extraction to a VAT account. Compliance with tax law.
05 / RECONCILIATION
Payment reconciliation
Automatic matching of payments to invoices and bookings. Handling deposits, additional payments, refunds. Eliminating manual reconciliation.
Payments in action
real numbers_
Three integration projects where we handle real financial flows — daily, in production.
50 000
e-invoices annually · Medicover
The Self Billing system issues, sends, and archives invoices in a full cycle, integrated with accounting.
850K+
payments · TUI
Deposits, additional payments, refunds — integration with online payment gateways and bank statements.
8 TU
calculators · Millennium
Automation of payment handling and reporting new insurance policies to insurers.
06 · Implementation process
5 steps to a working integration we work_
We work according to a plan that is both structured and flexible. We ensure transparent communication and stay in constant contact with your team. The project doesn't end for us with implementation.
01
Audit of current systems
We analyze the architecture, identify integration points, and map data flow. We detect systems without APIs.
02
Solution design
We define the target architecture, technologies, timeline, and KPIs. Technical spec tailored to regulations.
03
Iterative implementation
We work in sprints. Every module undergoes regression testing. We deliver working components every 2-4 weeks.
04
UAT and phased rollout
User Acceptance Testing with the business client. Deployment with rollback capability — we minimize production risk.
05
Monitoring and maintenance
Continuous monitoring of data flow, SLA, incident response, development planning. Full service support.
07 · Case studies
Integrations that work in environments
Integrations that work in environments
where mistakes are costly_
Three integration projects that showcase our approach — from healthcare to leasing and fintech.
08 · Costs and ROI
An investment that
An investment that
pays for itself quickly_
Integration costs are often seen as a barrier, but in reality it's an investment with a measurable return.
Long-term benefits from smooth data flow and process automation significantly outweigh the initial expenses, leading to increased efficiency and business competitiveness.
How we minimize costs
Middleware platforms
Ready-made connectors and tools reduce expenses by 30-40% compared to building from scratch.
Phased implementation
Spreads costs over time and allows monitoring ROI after each module.
Proprietary V.API platform
Shortens time-to-market and reduces implementation costs. Proven in 150+ projects.
Types of integration
-60%
Time on manual processes
Eliminating data copying between systems
3-5x
Faster reporting
One source of truth for the entire organization
-85%
Data errors
Validation at the integration level, not human
25%
Increase in sales efficiency
Consistent customer view = better personalization
09 · Support and maintenance
Integration isn't a project.
Integration isn't a project.
It's a continuous process_
After deployment, the real work begins: monitoring data flow, optimization, adapting to changing regulations and business needs. Our SLA agreements guarantee fast response, incident management, and integration development planning. 3 out of 4 clients continue working with us — because our software actually works.
What support includes
24/7 monitoring
Continuous monitoring of data flow and integration performance
Incident response
Fast identification and resolution of issues according to SLA
Updates and regulations
Adapting to GDPR, KSeF, PSD2 changes — without downtime
Performance optimization
Quarterly audits, bottleneck identification, refactoring
User training
Team onboarding, documentation, knowledge transfer
10 · Industries
Experience across 6 regulated industries_
We specialize in environments where an integration error carries real business and legal risk.
Fintech & Banking
mBank, Oney, BPS · PSD2 compliance
Healthcare
Medicover, CM Damiana · GDPR + HIPAA
Leasing
Millennium, Raiffeisen, EFL, BOŚ
Insurance
Nord Partner, Oney · 8 insurer calculators
Travel & e-commerce
TUI · 200 offices, 850K+ customers
11 · FAQ
Frequently asked questions_
Everything worth knowing before starting an integration project.
The duration depends on project complexity, the number of systems to integrate, and API availability in existing applications. Small integration projects can take a few weeks. More complex integrations involving multiple ERP, CRM, or banking systems take from several months to a year. Thanks to our iterative approach and proven methods, we aim to optimize costs while maintaining the highest quality. The audit is the first step toward a precise timeline.
Usually not — that's one of the biggest advantages of our approach. Our integration methods focus on leveraging available APIs and middleware platforms that act as an intermediary layer between different systems. If a system doesn't have a good API, we can apply dedicated solutions: custom connectors, data adaptations, or an abstraction layer. The goal is to create smooth data flow without the need for costly rebuilding of core software.
We use a wide range of modern technologies tailored to the project:
API & communication REST, SOAP, gRPC, GraphQL, Webhooks for real-time communication.
Event-driven : message queues Apache Kafka, RabbitMQ — for high scalability and event processing.
Data transformation : ETL/ELT tools for database and data warehouse synchronization.
Proprietary our V.API platform shortens time-to-market and reduces implementation costs, ensuring robust data flow.
API & communication REST, SOAP, gRPC, GraphQL, Webhooks for real-time communication.
Event-driven : message queues Apache Kafka, RabbitMQ — for high scalability and event processing.
Data transformation : ETL/ELT tools for database and data warehouse synchronization.
Proprietary our V.API platform shortens time-to-market and reduces implementation costs, ensuring robust data flow.
Yes — it's one of our specializations. We integrate:
Payment gateways: PayU, Przelewy24, Stripe, Adyen, Tpay, Blue Media — cards, BLIK, installments, recurring payments.
Open Banking PSD2: AIS (account information access), PIS (payment initiation), retrieving MT940/CAMT statements.
KSeF: issuing, sending, and receiving structured e-invoices (FA(2), XAdES). We have experience with volumes of 50,000+ invoices annually.
Split Payment Mechanism: MPP support, VAT taxpayer whitelist checking, automatic VAT amount extraction. For TUI we handle deposits, additional payments, and refunds with integration to online payment gateways and bank statements — over 850,000 customers served.
Payment gateways: PayU, Przelewy24, Stripe, Adyen, Tpay, Blue Media — cards, BLIK, installments, recurring payments.
Open Banking PSD2: AIS (account information access), PIS (payment initiation), retrieving MT940/CAMT statements.
KSeF: issuing, sending, and receiving structured e-invoices (FA(2), XAdES). We have experience with volumes of 50,000+ invoices annually.
Split Payment Mechanism: MPP support, VAT taxpayer whitelist checking, automatic VAT amount extraction. For TUI we handle deposits, additional payments, and refunds with integration to online payment gateways and bank statements — over 850,000 customers served.
The cost depends on several factors: complexity of existing systems, number of integration points, chosen technologies, and project scope. Expenses include: licenses for integration platforms, developer work, consulting, testing, and training. Using middleware and phased implementation can significantly reduce costs. After a free audit, we provide a specific quote and ROI estimate. Request an audit — we'll respond within 48 hours.
Yes. Security and compliance are the foundations of every integration project. All our solutions are designed with the highest standards in mind: GDPR, ISO 27001, PSD2, KSeF.
This includes access management (SSO, identity federation), data encryption in transit and at rest, and regular security audits. Process auditability is key to maintaining full transparency.
This includes access management (SSO, identity federation), data encryption in transit and at rest, and regular security audits. Process auditability is key to maintaining full transparency.
This is a common scenario, especially in legacy environments. We have several proven approaches:
Custom connectors: we create a dedicated intermediary layer that understands the old system's format and translates it to a modern API.
Database-level integration: direct synchronization at the database level with CDC (Change Data Capture) mechanisms.
Robotic Process Automation (RPA): in exceptional cases, we automate the user interface when no other method is possible.
Custom connectors: we create a dedicated intermediary layer that understands the old system's format and translates it to a modern API.
Database-level integration: direct synchronization at the database level with CDC (Change Data Capture) mechanisms.
Robotic Process Automation (RPA): in exceptional cases, we automate the user interface when no other method is possible.
We offer flexible support models, including SLA agreements with guaranteed response times. Support includes: 24/7 data flow monitoring · Incident management · Performance optimization · Updates resulting from regulatory changes · Integration development planning · User training. 3 out of 4 of our clients continue long-term collaboration — that's our best recommendation.
12 · Let's talk
Let's discuss your project_
Within 24 business hours we'll reach out with a proposal for an initial, no-obligation consultation. We don't sell — we advise. This is the first step to understanding whether Veloce is the right partner for your organization.
- Free 30-minute consultation with a senior developer and business analyst
- Initial feasibility assessment, technology recommendations, and budget estimate
- NDA signed before discussing any details about your business
- No sales pressure — you can simply benefit from our expertise
Direct contact_