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Fintech integrations for banks and B2B platforms

WislaCode Solutions is a fintech integration engineering firm registered in Warsaw and contracted under EU jurisdiction. We design and deliver client, partner and provider integrations for banks and B2B fintech platforms - payments, lending, KYC and AML, open banking, BaaS - without replacing the buyer's core systems.

  • Min project size
    $50,000+
  • Hourly rate
    $50 - $99 / hr
  • Employees
    10 - 49
  • Locations
    Warszawa, Poland
  • Year founded
    Founded 2023

1 Locations

  • Warszawa , Poland

Select Focus Area
Application Platforms
Other app platform
100%
Frameworks and CMS
Spring MVC
40%
Programming & Scripting
Java
30%
Typescript
20%
User Experience Focus
Industries
Financial services
100%
Clients
Midmarket ($10M - $1B)
50%
Enterprise (>$1B)
30%
Small Business (<$10M)
20%

Pricing Snapshot

Min. project size $50,000+
Avg. hourly rate $50 - $99 /hr
Rating for cost 5 /5

Most Common Project Size

Confidential based on 1 review
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

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Highly Rated Similar Providers

Overall Review Rating

5.0
  • Quality

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  • Schedule

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  • Cost

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  • Willing to Refer

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See all 1 Reviews

WislaCode Solutions Reviews

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Android Middleware Development for Payment Processing Co

  • Custom Software Development Mobile App Development
  • Android App Development
  • Confidential
  • June - Aug. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"What stood out was how WislaCode Solutions handled the unglamorous parts: retries, fallbacks, and error handling."

Oct 2, 2026
Head of Delivery, payabl.
Loukas Charalampous
Verified
  • Financial services
  • Limassol, Cyprus
  • 201-500 Employees
  • Online Review
  • Verified

WislaCode Solutions provided Android development services for a payment processing company. The team built Android middleware between the client's POS partner and their POS terminals.

Showing 1-1 of 1 Reviews

Our Story

WislaCode Solutions is a fintech integration engineering firm in Warsaw, contracted under EU jurisdiction. We build client, partner and provider integrations for banks and B2B fintech platforms - payments, lending, KYC and AML, open banking and BaaS - without replacing the buyer's core systems.

The founders have worked in banking and payments software for over 20 years. The company itself was registered in Warsaw in 2023. Each engagement has a named technical lead and a documented handover.

Locations (1)

18 Stefana Batorego Warszawa, Poland 02-591

6 - 9

Contact WislaCode Solutions

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(1)
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Loukas Charalampous