What services does WislaCode provide and how can you help businesses?
We specialise in custom software development: web applications, mobile apps (iOS/Android, PWA, SuperApp), AI/ML integration, cloud solutions, DevOps, UI/UX, and digital transformation. Our core specialism is Banking and FinTech: digital banks, mobile banking, payment systems, RegTech, Open Banking APIs, anti‑fraud, and KYC/AML automation.
What is your key differentiator for banks and FinTech companies?
Deep domain expertise and regulatory compliance from day one: PCI DSS, GDPR, PSD2, MiFID II, Open Banking. We build scalable microservice platforms handling millions of requests and dozens of integrations, with stringent requirements for security, resilience, and observability.
Which technologies and architectural approaches do you use?
Frontend: React, Next.js, TypeScript. Backend: Node.js, Python (Django/FastAPI), Java/Spring. Data: PostgreSQL, MongoDB. Integrations: REST, GraphQL. Cloud: AWS, Azure. Containers and orchestration: Docker, Kubernetes. Microservices, event‑driven architectures, API gateways, CI/CD, and IaC by default.
Can we come to you with a legacy system?
Yes. We modernise core banking and peripheral systems via API integrations, the strangler pattern, and phased migrations. We progressively extract functionality into microservices, improving performance, security, and release velocity without disrupting the business.
Do you develop mobile banking apps and Super Apps?
Yes. iOS/Android, PWA, and Super App with mini‑apps: payments, transfers, cards, loans, subscriptions, QR payments, biometrics, limit management, push notifications, and an in‑app inbox centre. We deliver neo‑bank experiences and corporate banking with deep UX and accessibility.
When should we choose a PWA vs native?
PWAs are typically 20-30% faster and more cost‑effective for broad reach and a single codebase; critical native capabilities (biometrics, offline secure storage, complex camera/sensors) are use‑cases for native apps. We often go hybrid: PWA plus native wrappers for store publication and device API access.
What do you deliver in AI/ML for financial services?
Anti‑fraud and real‑time anomaly detection Scoring and risk models (including explainable AI) Intelligent chatbots and voice bots (NLP) for support RegTech: automation of compliance procedures and reporting Personalisation, recommendations, and customer segmentation
How do you ensure security and compliance?
Threat modelling, secure SDLC, code reviews, SAST/DAST, secrets management, encryption at rest and in transit, card tokenisation, role‑ and attribute‑based access controls (RBAC/ABAC), logging and audit, WAF/IDS/IPS. Regular pen tests, performance/load testing, Disaster Recovery (DR) and Business Continuity Planning (BCP), and incident response procedures.
Do you integrate payment gateways and acquiring?
Yes. We connect payment providers, 3‑D Secure, tokenisation, Apple Pay/Google Pay, recurring billing, refunds/chargeback processes. We account for local schemes (SEPA Instant, local rails), multi‑currency, and beneficiary validation.
Do you work with Open Banking and bank APIs?
Yes. We integrate with Open Banking (PSD2), build API gateways, map domain models, and ensure user consents, audit, and monitoring. We also support from a product perspective: how to turn APIs into new revenue streams.
Do you build blockchain and crypto solutions?
Yes. Custodial and non‑custodial wallets, secure transactions, smart contracts, reporting, on‑chain anomaly monitoring, and AML compliance practices. We implement exchange components, order types, order book, KYC/AML flows, and integrations with providers.
What are typical budgets and timelines?
Simple web product: from €3k, 2-4 weeks FinTech modules/integrations: from €25k Complex platforms: €100k-€500k+, 2-6 months Enterprise banking: 6-12 months After a rapid requirements review, we’ll provide a detailed estimate and plan.
How is your delivery process structured?
Discovery → systems and business analysis → UX research/prototype → architecture → development (Agile/Scrum) → QA/security → performance/load testing → release/Go‑Live → support/iterations. Transparent demos, metrics, burndown, SLAs.
What engagement models are available?
Fixed Price for well‑defined specifications, Time & Materials for flexible backlogs, and Dedicated Team/Staff Augmentation to extend your team. We also offer strategy consulting, architecture and security audits, and CTO‑as‑a‑Service.
How do you ensure scalability and high availability?
Microservices, horizontal scaling, auto‑scaling, queues/streaming (event bus), caching, read replicas, CDN, canary/blue‑green strategies, circuit breakers and retry patterns, SLO/SLI, and observability (logs/metrics/traces).
Do you build analytics data marts and real‑time dashboards?
Yes. We create data marts and analytics dashboards for risk, transactions, conversions, LTV, and latency. We use event streaming, CDC, and OLAP/columnar databases; role‑based dashboards with drill‑down and alerting.
How do testing and quality assurance work?
Functional, regression, and integration testing; automated tests; performance (load/stress); security (SAST/DAST); usability testing; UAT. For payments, we add failure scenarios and correctness of compensating transactions.
Which industries beyond banking and FinTech do you cover?
HealthTech, e‑commerce, SaaS, EdTech, real estate, manufacturing, automotive/leasing. We help launch marketplaces, tracking systems (GPS/indoor), enterprise super‑apps, and self‑service platforms.
Do you have proven results and case studies?
Yes. Examples include: a banking platform processing £10M+ daily transactions; a digital bank with 50,000+ active users; an AI chatbot cutting response time by 80%; a crypto exchange with enhanced security; a RegTech solution for automated reporting; P2P lending with AI‑based scoring. Also: CleverFit (PWA, 81% engagement) and car‑sharing/leasing platforms.
What about post‑release support?
We offer support packages: 24/7 support, SLAs, monitoring, security updates, regulatory updates (PCI DSS/GDPR/PSD2), performance optimisation, roadmap iterations, and A/B experiments.
How do we start a project and get an estimate?
Email [email protected] or submit a request on the website. We’ll respond within 24 hours, provide a complimentary consultation for qualified projects, clarify goals/requirements, and prepare a phased cost estimate with risks and timelines.
Tell us about your integration challenge and we will respond within one working day.