Fintech Software Development Services
ZingZee is a fintech software development company in Limassol, Cyprus, delivering the onboarding, wallets, ledgers, card programme integrations, open banking connections, safeguarding, and reporting that an e-money, payment, or lending product requires. Each platform is delivered through the five-phase framework on one codebase, so the first release and the licensed platform are the same system.
- Cyprus, engineers across the globe
- Five-phase delivery
- Typed, tested, handed over
What fintech software development covers
Fintech software development is the design and engineering of a financial product a company operates under its own licence or a partner's: an e-money account, a payment service, a lending product, or a digital wallet, together with the onboarding, ledger, card, open banking, safeguarding, and reporting functions the licence requires. ZingZee provides fintech software development for founders and product teams that need a first release quickly and a licensed platform afterwards, on the same codebase. The ledger, the client record, and the controls are designed for the audit from the first release, and the product features are built around them.
Fintech product use cases
Wallet and card launched under a partner's cover, then moved to the company's own licence
A wallet app with a virtual card launches under a banking-as-a-service partner's licence with the company's own ledger behind it. When the e-money authorisation arrives, the safeguarding account and the reconciliation switch over, and the clients, balances, and history stay where they are.
Business account with onboarding of directors and beneficial owners
An onboarding flow for companies pulls the register entry, identifies directors and beneficial owners, screens each of them, and scores the business under the company's risk policy. The compliance officer reviews the exceptions from a queue, and the account opens with the file complete.
Lending product with reproducible credit decisions
A lending platform takes an application, pulls open banking transaction data with the applicant's consent, runs a versioned credit policy, and produces an offer with a schedule. Every decision stores the inputs, the policy version, and the outcome, so a complaint or an inspection is answered from the record.
Safeguarding statement ready every morning
A reconciliation runs before the working day, compares client funds in the ledger with the safeguarding account and the card settlement in transit, and reports any break with the postings behind it. The statement the compliance officer signs is filed automatically, replacing the spreadsheet built by hand.
First release rebuilt into a licensable platform without a stop
A product that was built quickly and now holds real clients receives a ledger, a compliance queue, and reporting beside the existing app. Balances are migrated by a rehearsed script and reconciled, and the old data store is retired once the supervisor's questions can be answered from the new one.
Why choose ZingZee as your fintech software development company
The ledger, the client record, and the audit trail are designed for the licence audit before the first feature is built, so the product a partner's cover allows and the platform the company's own licence requires are the same codebase. The compliance officer signs off each release.
ZingZee scopes and prices each phase once its requirements are settled, so a founder can commission the first release now and the safeguarding and reporting work when the application timetable requires it, with a known figure each time.
Issuer processors, BIN sponsors, KYC and screening vendors, open banking aggregators, and payment rails sit behind an adapter layer, so the company can change a processor or a sponsor as it grows without rewriting the wallet or the ledger that clients depend on.
Every rail, card settlement, and safeguarding account is reconciled against the ledger daily, and a release is held while a break is open. A migration from a first version is rehearsed until the reconciliation report is clean, and ZingZee schedules no cut-over on a test report alone.
When custom fintech software development is the right choice
Custom fintech software development is the right choice when a company intends to hold its own e-money, payment institution, or lending licence and needs the product it launches under a partner's cover to survive its own authorisation. It is the right choice when a first version built quickly cannot show a supervisor a ledger, a safeguarding position, or a record of who approved what. It suits a lender whose credit decisions must be reproduced for a complaint, a marketplace adding seller wallets beside its core business, and a company whose banking-as-a-service partner is raising prices or leaving the market. The strategic assessment confirms which functions the first release needs and which the licence adds.
When custom fintech software is the wrong choice
Custom fintech software is the wrong choice when the product is a standard prepaid card or a payment acceptance flow that a licensed provider already offers under its own brand with an API, because the provider's platform covers it at a fraction of the cost. It is the wrong choice for a company with no plan for a licence and no compliance officer, because a wallet without a licence framework has nobody to sign off its safeguarding. It is also the wrong choice when the application deadline leaves no time to build the ledger before the supervisor asks to see it, in which case the assessment recommends a partner platform for the first period.
Fintech software development services ZingZee provides
Licensed product platforms for e-money, payments, and lending
ZingZee builds the platform an e-money institution, a payment institution, or a lender operates under its licence: accounts and wallets, payments, cards, lending with schedules and collections, and the compliance, safeguarding, and reporting functions the authorisation conditions name. The first release is scoped to what a partner's cover allows.
Onboarding with KYC and AML
ZingZee builds onboarding that captures identity documents and a liveness check, screens against sanctions and PEP lists, scores risk under the company's policy, and opens the account with the evidence filed. Business onboarding adds company registers, directors, and beneficial owners, and every decision records the rule version and the reviewer.
Digital wallets, ledgers, and card programme integration
ZingZee builds a double-entry ledger with client wallets, fees, and FX, and connects it to an issuer processor and a BIN sponsor for physical and virtual cards. Authorisation, clearing, chargebacks, and tokenised wallets are handled in the integration layer, and the balance in the app is derived from the ledger postings.
Open banking integration under PSD2
ZingZee builds account information and payment initiation features on the open banking standards, so the product can read a client's accounts at other banks and initiate payments from them with strong customer authentication. The same layer serves the product's own API where the licence makes the company an account provider.
Safeguarding, reconciliation, and regulatory reporting
ZingZee builds the daily safeguarding reconciliation that compares client funds in the ledger with the safeguarding account, and the reconciliation of every rail and card settlement against the ledger. The returns on capital, liquidity, transactions, and complaints are produced from the same postings with the workings retained.
Fintech product engagement scope
Deliverables
The agreed platform in production, source code and infrastructure definitions in the company's repositories, the ledger and data model documentation, the integration specification for each processor, vendor, and rail, the test suite with results, the reconciliation reports, the runbook, and the control documentation for the licence application.
Included as standard
A strategic assessment with the founders and the compliance officer, architecture and ledger design, build in reviewed increments, automated and manual testing, an independent penetration test on the client app and the API, a migration rehearsal where a first version exists, go-live support, and an aftercare phase.
Priced separately
Additional rails, card programmes, or currencies beyond the agreed set, further KYC or screening vendors, white-label versions for partner brands, processor and vendor fees, ongoing support after the aftercare phase, and any function the assessment identifies outside the original brief.
What the client provides
The business plan and the authorisation conditions applied for, the compliance and safeguarding policies the platform must enforce, the product and fee design, sandbox credentials for the processor, sponsor, vendors, and rails, and a sponsor who can approve controls.
Outside the engagement
The licence application itself, legal advice on the regulatory framework, the compliance and safeguarding policies, and the agreements with the BIN sponsor, the safeguarding bank, and the payment rails remain with the company, with ZingZee supplying the technical documentation each needs.
How a fintech product engagement with ZingZee runs
for Fintech products work.
A fintech product engagement with ZingZee runs through the five-phase delivery framework, in step with the licence timetable. The strategic assessment reads the business plan, the authorisation conditions applied for, and the partner's cover for the first release, and maps which functions the first release needs and which the licence adds. The AI roadmap produces the ledger design, the data model, the integration specification for each processor, vendor, and rail, and a security design that names each control and its owner. Integration and deployment builds in reviewed increments, with the first release scoped to the partner's cover and the safeguarding, monitoring, and reporting functions following on the application timetable, each passing functional, performance, and penetration testing, and any migration from an existing version rehearsed until the reconciliation is clean. Adoption and enablement trains the operations and compliance teams and hands over the runbook and the evidence pack. Governance, optimisation and scale covers hypercare and the aftercare arrangement agreed at go-live.
Strategic assessment
We assess how the business operates today: its processes, its data and the systems it runs on. From that we identify the use cases with the highest return and confirm the organisation is ready to adopt them, so the programme starts from a defined baseline.
AI roadmap
Findings become a phased roadmap that balances early wins with the longer build. ZingZee sets the milestones, the resourcing and the governance that keep delivery on schedule and aligned to business objectives.
Integration and deployment
Our engineers develop, validate and deploy the solution into your production environment, integrated with the enterprise systems you already run and sized for the workloads it will carry.
Adoption and enablement
Enablement programmes prepare business users and technical teams to work with the new capability, and structured change management ensures the organisation captures the full value of what has been deployed.
Governance, optimisation and scale
Ongoing governance, monitoring and optimisation keep the solution accurate, compliant and performing. Proven solutions are then scaled across departments and regions under the same data governance standards.
Fintech product technology stack
ZingZee builds fintech products on a technology stack chosen for correctness under audit, long support horizons, and the availability of engineers who can maintain it. The stack covers:
- TypeScript services for the API, the wallet, and the client app, with one shared type model
- PostgreSQL with append-only posting tables, point-in-time recovery, and row-level access
- Issuer processor, BIN sponsor, and card scheme sandboxes for virtual and physical cards
- KYC, screening, and open banking aggregator APIs behind one adapter layer
- A reconciliation engine for rails, card settlement, and the safeguarding account
- React web and native mobile apps with strong customer authentication and device binding
- Regulatory return templates in the schema the supervisor publishes
Fintech product engineering practices
Every ledger ZingZee builds for a fintech product is double-entry with append-only postings, so a wallet balance is the sum of its history and a correction is a new posting that references the one it reverses. Client funds are posted to safeguarding accounts separate from operating funds, and the daily reconciliation is stored with its workings. Access follows segregation of duties: the person who changes a limit or a rule cannot approve it, and privileged actions record a second approver. Secrets and card data live in a managed vault, client data is masked outside production, and every release carries a change record with the approver and the rollback plan.
Cost and time for fintech software development
The cost of fintech software development depends on the functions in the first release, the rails, processors, and vendors to integrate, the licence type and the reporting it requires, the number of currencies, and whether an existing version has clients to migrate.
A first release with onboarding, a wallet, and a virtual card under a partner's cover is a matter of months from assessment to production. Adding the safeguarding, monitoring, and reporting functions an e-money or payment institution licence requires takes a further period on the application timetable. ZingZee provides a written estimate after the strategic assessment and prices each phase once its scope is fixed.
Fintech software development from the first release to the platform that passes the licence audit
Fintech companies ZingZee builds for
ZingZee builds fintech software for founders launching an e-money account or a digital wallet under a partner's cover with their own licence application in progress, and for payment institutions adding a card programme, open banking, or a new rail to a platform that already holds clients. It builds for lenders whose credit decisions must be reproducible and whose collections run on a schedule. It builds for established companies adding a financial product beside their core business, such as a marketplace with seller wallets. It also builds for licensed institutions replacing a first version that has become the risk in their next inspection, in Cyprus and across the European Economic Area.
What happens next?
You send a description of the product, the licence you hold or are applying for, the functions you need in the first release, and any system you run today.
An engineer reads it and replies within two working days with the shape of a strategic assessment and the questions you and your compliance officer will be asked.
You sign a non-disclosure agreement if you need one, and you receive a proposal with the phases, the deliverables, the team, and the order in which the functions would go live.
Frequently asked questions
Straight answers on Fintech products work with ZingZee.