FinTech
We build the software layer fintech companies need around regulated financial infrastructure — open banking API integration, onboarding and KYC workflow automation, reconciliation, and the data platforms that connect core-banking systems with modern applications.
- Open banking / PSD2 API integration
- KYC and onboarding workflow automation
- Legacy core-banking data integration
- Payments orchestration integration
- Reconciliation and reporting data platforms
FinTech software development covers the engineering layer that fintech companies build on top of — and around — regulated financial infrastructure: open banking and PSD2 API integrations, KYC and onboarding workflow automation, payments orchestration integration, reconciliation systems, and the data platforms that connect legacy core-banking systems with modern applications. North Tech Labs builds this engineering layer; we are not a licensed payment institution and do not provide regulatory compliance certification.
Sector context
Fintech companies typically sit between regulated infrastructure they don't own — banks, payment service providers, card networks, KYC vendors — and the product experience their customers actually use. The engineering challenge is rarely the financial logic itself; it's integrating cleanly with providers that each expose different APIs, data formats, and failure modes, while keeping the resulting system auditable.
Onboarding and KYC processes are often a patchwork of manual review steps, third-party verification calls, and spreadsheets tracking case status, which slows down customer activation and makes it hard to demonstrate a consistent process. Automating the workflow — routing, status tracking, document handling — is a software problem distinct from the underlying compliance judgment itself.
Many fintech products are built on top of, or alongside, a legacy core-banking system that wasn't designed for modern integration: batch-oriented exports, proprietary formats, or limited APIs. Making that data available to new applications without disrupting the systems of record requires deliberate integration architecture, not a replacement of the core system.
We build the integration, workflow, and data layer that sits around licensed financial infrastructure. North Tech Labs is not a bank, a licensed payment institution, or an e-money issuer, and doesn't provide regulatory compliance certification — that responsibility sits with licensed providers, compliance counsel, and regulators, and our software is scoped and delivered with that boundary in mind.
Operational and digital challenges
- Open banking and PSD2 API integration is fragmentedEach bank or aggregator exposes its own version of open banking APIs, with inconsistent data quality, rate limits, and failure behaviour to design around.
- KYC and onboarding workflows are manual and slowIdentity verification, document review, and case status tracking often happen across email, spreadsheets, and disconnected vendor portals rather than a single workflow.
- Legacy core-banking systems are hard to integrate withBatch exports, proprietary formats, and limited APIs make it difficult to give modern applications timely access to account or transaction data.
- Reconciliation across providers is done manuallyMatching transactions across payment providers, card networks, and internal ledgers is often a manual, spreadsheet-driven process prone to drift and error.
- Fraud and risk data is scattered across systemsSignals relevant to fraud or risk assessment often live in separate systems that were never built to share a common, queryable data model.
- Regulatory reporting data isn't structured for reuseData needed for reporting to regulators or auditors is frequently assembled ad hoc rather than captured in a form that supports repeatable reporting.
Software capabilities
- Open banking / PSD2 API integration layers
- Payments orchestration integration with licensed PSPs and card networks
- Multi-provider payment routing and status tracking
- Transaction and settlement data ingestion
- KYC and onboarding workflow automation (routing, status, document handling)
- Case-management systems for compliance and operations teams
- Merchant and partner onboarding portals
- Reconciliation workflow systems
- Legacy core-banking data integration layers
- Data platforms consolidating multiple providers and internal systems
- Fraud and risk data-preparation pipelines (data engineering, not credit or investment decisioning)
- Regulatory-reporting data platforms structuring source data for reuse
Representative systems
The examples below describe common system types and potential engineering applications. They do not represent undisclosed client projects.
- Open banking data aggregation platformA system integrating multiple open banking / PSD2 APIs into a single consistent internal data model.
- KYC and onboarding workflow platformA workflow system automating case routing, document handling, and status tracking for customer onboarding.
- Payments orchestration integration layerAn integration layer coordinating payment routing and status across licensed payment service providers.
- Core-banking integration layerA system exposing data from a legacy core-banking platform to modern applications without altering the system of record.
- Reconciliation platformA system matching transactions across payment providers, card networks, and internal ledgers.
- Fraud and risk data pipelineA data-engineering pipeline consolidating and preparing transaction and behavioural data for use in fraud or risk models.
- Merchant and partner onboarding portalA self-service portal for merchants or partners to submit onboarding documentation and track application status.
- Regulatory-reporting data platformA system structuring transaction and account data to support recurring regulatory or audit reporting workflows.
Relevant services
- Custom Software DevelopmentDesign and development of secure, scalable custom software for companies across Sweden and the Nordic region.
- API Development & Systems IntegrationAPI design, partner integrations, and systems-integration engineering connecting ERP, MES, WMS, and third-party platforms into a reliable data flow.
- Data Engineering & AnalyticsData pipelines, warehousing, quality validation and BI reporting built to make scattered operational and sensor data reliable enough to trust.
- AI DevelopmentProduction-oriented AI systems, assistants, RAG platforms and intelligent automation for Nordic businesses.
Delivery considerations
- Clear boundary with licensed providersEngagements are scoped so it's explicit which parties hold regulatory licences and compliance responsibility, and which parts North Tech Labs is building as the software layer around them.
- Phased rollout around live payment flowsChanges to payments, onboarding, or reconciliation systems are sequenced to avoid disrupting live transaction volume, typically piloted on a limited scope first.
- Working alongside compliance and legal counselCompliance judgment and regulatory sign-off remain with the client's compliance function or external counsel; we build the workflow and data systems that support their process.
- Provider-dependency awarenessTimelines and architecture account for dependency on third-party providers' own release cycles, uptime, and API stability.
Architecture, data & integration considerations
- Resilience against third-party API instabilityOpen banking, PSP, and card-network integrations are designed to tolerate rate limits, outages, and inconsistent data from providers North Tech Labs doesn't control.
- Data integrity for financial recordsTransaction, ledger, and reconciliation data is modelled and stored to preserve accuracy and prevent silent data loss across integration boundaries.
- AuditabilityStructured, timestamped data capture across payments, onboarding, and reconciliation flows sufficient to support later audit or regulatory review.
- Legacy-system integration boundariesIntegration with core-banking or legacy systems is designed at a clear boundary, reading and writing through defined interfaces rather than bypassing the system of record.
Security, privacy & compliance considerations
- Not a licensed payment institutionNorth Tech Labs is a software engineering studio, not a licensed payment institution, bank, or e-money issuer, and we do not provide regulatory compliance certification (PSD2, e-money licensing, or similar). Licensing and compliance certification sit with the client's regulated entity, its compliance function, and legal counsel; we build the software layer around that responsibility.
- Data protection and access controlAccess to financial and personal data is scoped by role and purpose, following the client's own data-protection requirements and applicable regulation.
- Auditable data handlingPayments, onboarding, and reconciliation systems are built to preserve a traceable record of data handling, supporting — not replacing — the client's own compliance and audit processes.
- Secure integration with regulated providersIntegrations with banks, PSPs, and KYC vendors follow the authentication, encryption, and data-handling requirements those providers themselves impose.
Where this fits
Frequently asked questions
Is North Tech Labs a licensed payment institution or bank?
No. North Tech Labs is a software engineering studio. We are not a licensed payment institution, bank, or e-money issuer, and we do not provide regulatory compliance certification such as PSD2 or e-money licensing. We build the integration, workflow, and data software that sits around licensed financial infrastructure — licensing and compliance certification remain the responsibility of the regulated entity and its compliance and legal counsel.
What is fintech software development?
It's the design and engineering of the software layer fintech companies build around regulated financial infrastructure — open banking API integration, KYC and onboarding workflow automation, payments orchestration integration, reconciliation, and data platforms connecting legacy core-banking systems with modern applications.
Can you integrate with open banking / PSD2 APIs?
Yes — integrating with open banking and PSD2 APIs exposed by banks and aggregators is a core part of most fintech engagements, including handling the inconsistencies between different providers' implementations.
Do you build fraud-detection or credit-decisioning models?
We build the data-engineering pipelines that consolidate and prepare transaction and behavioural data for use in fraud or risk models. We don't make credit, underwriting, or investment decisions, and any model logic built as part of an engagement is scoped and validated alongside the client's own risk and compliance function.
Can this integrate with our existing core-banking system?
In most cases, yes — legacy core-banking systems typically expose some combination of batch exports or limited APIs, and we build the integration layer that makes that data usable to modern applications without altering the system of record.
Further reading
- GDPR-Relevant Engineering Practices for Software TeamsA technical guide to data minimization, erasure, portability, consent, and residency for engineering teams building GDPR-relevant software.
- Software Security Fundamentals for Engineering TeamsA practical guide to threat modeling, secure SDLC, dependency hygiene, authentication, and least-privilege design for engineering teams.
Working in FinTech?
Tell us which fintech systems need to talk to each other — core banking, payment providers, KYC vendors — and we'll scope the engineering from there.