Fintech
Software Development
We build fintech software for banks, payment platforms, lenders, and crypto businesses. End-to-end engineering from strategy and design through development, deployment, and support.
TRUSTED. CERTIFIED. PROVEN.
$1.76T
Market by 2034
3.5B
Global Users
12+
Years in Fintech
250+
Products Shipped
How we work with you
Source code, ML models, design files, infrastructure-as-code, documentation. Yours from day one, in your GitHub organization. No licensing strings, no per-seat surcharges.
Domain depth
Engineers Who Know Finance
Most of our fintech engineers have spent years on banking, payments, or trading systems. You won't be paying for a generalist team to learn ISO 20022 or KYC workflows on your project.
Scope Clarity
Honest Scope Conversations
If your timeline is tight or your budget doesn't match the scope, we say so before you sign anything. We'd rather pass on a project than agree to one we can't deliver well.
Compliance
Compliance Considered Early
PCI DSS, PSD2, GDPR, SOC 2, and AML/KYC requirements are factored into the architecture from the first sprint. Compliance teams join our discovery sessions, not just our pre-launch reviews.
Working software
Demos Every Two Weeks
You see working software at the end of each sprint not slide decks describing what we plan to build. If something's not working, you find out early, while changes are still cheap.
Access to engineers
Direct Engineering Access
You talk to the engineers building your product. Not just account managers. Slack, email, or call whatever works for your team's rhythm and time zone.
Ownership
You Own What We Build
Source code, ML models, design files, infrastructure-as-code, documentation. Yours from day one, in your GitHub organization. No licensing strings, no per-seat surcharges.
If your timeline is tight or your budget doesn't match the scope, we say so before you sign anything. We'd rather pass on a project than agree to one we can't deliver well.
PCI DSS, PSD2, GDPR, SOC 2, and AML/KYC requirements are factored into the architecture from the first sprint. Compliance teams join our discovery sessions, not just our pre-launch reviews.
You see working software at the end of each sprint not slide decks describing what we plan to build. If something's not working, you find out early, while changes are still cheap.
You talk to the engineers building your product. Not just account managers. Slack, email, or call whatever works for your team's rhythm and time zone.
Source code, ML models, design files, infrastructure-as-code, documentation. Yours from day one, in your GitHub organization. No licensing strings, no per-seat surcharges.
What we build for you
Nine areas where fintech teams hire us. Each can be a single engagement or part of a larger build.
Custom Platform Engineering
Frontend, backend, data, and DevOps for new fintech products. Cloud-native on AWS, Azure, or GCP with infrastructure-as-code and observability from sprint one
AI & Data Engineering
Fraud scoring, credit decisioning, document processing, and customer copilots. Includes feature stores, model deployment, drift monitoring, and human-in-the-loop review.
Core Modernization
Phased migration off mainframe, AS/400, or aging T24 cores. Strangler-fig patterns let new and old systems run in parallel until you're ready to decommission components.
Digital Wallet Engineering
Stored value, P2P transfers, bill pay, multi-currency support, and tokenization. Apple Pay, Google Pay, and regional wallet integrations included where relevant.
API Integration Layer
Open banking (PSD2, FAPI), ISO 20022 messaging, payment rail integrations, KYC providers, and partner APIs built once, documented properly, reused across products.
Legacy System Optimization
Performance tuning, technical debt reduction, observability for systems you can't yet replace. Buy yourself time and stability while planning a longer migration.
IoT & Hardware Integration
ATM firmware, POS terminals, biometric readers, smart card devices, and self-service kiosks. Secure provisioning, OTA updates, and field-telemetry dashboards.
Crypto & Web3 Engineering
Exchange infrastructure, custody integration, stablecoin payment rails, on-chain analytics, and Travel Rule compliance. For VASPs and fintechs adding digital-asset capabilities.
Need just one of these, or a full platform build? Both work. Tell us where you are.
Talk to our teamWhere we spend our engineering time
Six things fintech teams typically tell us they need help getting right. Where we focus our engineering hours, regardless of the specific project.
Fraud signals that are useful
Tuning detection so analysts trust the alerts and customers don't get blocked for normal behavior. Quiet improvement, not flashy dashboards.
Decisions that happen in time
Credit checks, onboarding, and risk scoring that complete while the customer is still on the page. Architecture and integration work that earns its keep.
Costs that track with usage
Cloud bills, third-party fees, and AI inference costs that scale with the customers you're serving not ahead of them. We watch this carefully.
Compliance built into the workflow
Audit logs, transaction monitoring, and reporting that produce themselves as platform runs. So compliance teams aren't manually reconstructing things.
Migrations that don't break things
Phased modernization where new and old run in parallel until you're confident. Cutovers happen on a Tuesday morning, not a tense Sunday at 2am.
Not sure which path fits your project?
Tell us where you are and we'll recommend the right approach honestly.
Get a free consultationFintech software we build
Eight areas where fintech teams bring us in. Each card lists what we actually build inside that domain not slogans about it.
Digital banking platforms
For challenger banks, neobanks, and incumbent banks modernizing their digital surface.
- Customer onboarding flows with KYC and document verification
- Account opening, transfers, statements, and self-servicing
- Card management issuing, freezing, limits, virtual cards
- Personal finance features budgets, goals, spending insights
- Core banking integration with Mambu, Temenos, or Finacle
Payment processing systems
Custom payment platforms, or integrations with major processors like Stripe, Adyen, or Visa.
- Authorization, settlement, and reconciliation engines
- Card network integrations and direct bank rails
- Real-time payments FedNow, RTP, SEPA Instant, UPI
- Cross-border FX with corridor-specific compliance routing
- Merchant onboarding and KYB workflows
Digital wallets & E-wallets
Stored-value wallets with the regional features your users expect.
- Multi-currency stored balances and P2P transfers
- Bill pay, mobile top-up, and merchant settlement
- Apple Pay and Google Pay tokenization
- Loyalty, cashback, and reward programs
- Crypto wallet capabilities for custodial and non-custodial use
Lending & credit platforms
End-to-end loan origination platforms with credit decisioning and servicing built in.
- Application intake, bureau pulls, and alternative data scoring
- Automated underwriting and policy engines
- Loan servicing, collections, and restructuring workflows
- BNPL infrastructure for consumer and SME lending
- Compliance reporting for state and federal regulators
Wealth & investment platforms
Portfolio management, advisory, and client reporting tools for RIAs and wealth managers.
- Portfolio aggregation across multiple custodians
- Performance attribution and goals-based reporting
- Robo-advisory engines with rebalancing logic
- Multi-asset support equities, fixed income, crypto, commodities
- Client-facing portals and advisor desktop apps
Fraud & risk management
Real-time fraud scoring, transaction monitoring, and risk dashboards.
- ML-based scoring on every transaction in real time
- Behavioral biometrics and device fingerprinting
- Rule-based and hybrid risk engines for explainability
- Operational risk dashboards for fraud and compliance teams
- Model retraining pipelines without exposing raw PII
RegTech & compliance automation
Software that takes manual compliance work off your operations team.
- AML transaction monitoring and SAR generation
- Sanctions, PEP, and adverse media screening
- Automated regulatory reporting (FINREP, COREP, MiFID II)
- Audit trail systems with cryptographic integrity
- Region-specific RegTech for US, UK, EU, GCC markets
Crypto & blockchain infrastructure
Exchange, custody, and on-chain capabilities for regulated crypto businesses
- Spot and derivatives matching engines
- Hot/cold wallet architecture and key management
- MiCA-aligned onboarding and Travel Rule compliance
- Smart contract development, audit, and deployment
- On-chain analytics integration Chainalysis, TRM Labs
Real software projects we've shipped
Real scenarios where founders, operators, and enterprise teams brought us in to build software that shipped to production:
Content Platform Redesign
How ZAPTA helped redesign and rebuild the V3 experience for a leading content-repurposing platform, bringing clarity, consistency, and a unified design system across every module of a product trusted by 980K+ creators.
AI EdTech Platform
How ZAPTA helped an EdTech client turn traditional tutoring into a personalized, AI-driven experience, intelligently matching students with suitable tutors, with 1,500 students enrolled and 591+ expert tutors on the platform.
Fintech sub-sectors we
know well
Six fintech sub-sectors where most of our recent work has happened. If your project sits inside one of these, we can usually start with shipped-product context, not a learning curve.
Retail & commercial banking
Mobile and online banking, account servicing, treasury management, and SME banking portals. Comfortable on Mambu, Temenos, or building fully custom depending on what fits your business.
Capital markets & trading
OMS/EMS, FIX gateways, market surveillance, and post-trade automation. Built for institutional desks, brokers, and trading platforms with low-latency requirements.
Payments & cards
Issuing, acquiring, real-time settlement (FedNow, SEPA Instant, UPI), 3DS, tokenization, and cross-border FX. PCI DSS-aligned design across the payment perimeter.
Wealth & asset Management
Robo-advisory, model portfolios, performance attribution, ESG analytics, and investor reporting. For RIAs, family offices, and institutional asset managers.
Crypto, web3 & digital assets
Exchange and custody infrastructure, on-chain analytics, MiCA-aligned compliance, Travel Rule, stablecoin issuance, and tokenized real-world asset platforms.
Our three-phase delivery process
We follow the same shape on every engagement, with durations adjusted to scope. Most full builds run 12–20 weeks; integrations and AI features usually 6–10 weeks
Consult and align
- Discovery workshop to align goals, users, workflows, and outcomes.
- Requirement gathering and stakeholder interviews business, and compliance.
- Technology selection based on scale, performance, security, and long-term maintainability.
Discovery, regulatory mapping, and scope. You leave with a fixed-scope proposal.
Design & engineer
- High-fidelity UX in Figma web, mobile, dashboard, and admin interfaces.
- System architecture covering data models, APIs, integrations, auth, and compliance.
- Agile sprints with weekly working demos and live client feedback loops.
UX, architecture, build, and ongoing review with working demos every two weeks.
Deploy & evolve
- Deployment to AWS, GCP, or Vercel with CI/CD pipelines and zero-downtime releases.
- Observability with Datadog, Sentry, or Grafana live from day one tracing, errors, and performance.
- Security hardening, access controls, and compliance-ready audit logging.
Cloud deployment, observability, & iteration as the platform earns traffic.
Want this process applied to your project? We'll share a roadmap within a couple of working days.
Tell us about your projectOur fintech technology stack
The tools we tend to reach for. Selection always depends on your platform, throughput, and compliance context we'll explain the trade-offs during discovery.
What our clients say
Meticulous attention to detail and unwavering commitment to deadlines fuelled a fantastic project collaboration. Their consistent quality output showcases their reliability and deep understanding of the project, making them a true partner, not just a vendor. Bravo, ZAPTA!
Fintech development FAQs
Structured for AI search engines and Google rich results. Implement FAQPage JSON-LD.
Most fintech MVPs we ship run 12–20 weeks from kickoff. Larger platform builds run 9–24 months in phased rollouts. Integrations and AI features usually ship in 6–10 weeks. After a 30-minute discovery call we share a milestone-driven timeline, and you can decide from there.
Yes. We've integrated with Mambu, Temenos, Finacle, Avaloq, FIS, Fiserv, and a number of legacy mainframe cores. We rarely recommend rip-and-replace. Most of the modernizations we do build modern surfaces and AI layers on top of cores that are still doing their job.
Yes. We've integrated with Mambu, Temenos, Finacle, Avaloq, FIS, Fiserv, and a number of legacy mainframe cores. We rarely recommend rip-and-replace. Most of the modernizations we do build modern surfaces and AI layers on top of cores that are still doing their job.
Yes. We've built for crypto exchanges, custody platforms, on-chain analytics tools, stablecoin issuers, and tokenized RWA platforms. We bring MiCA, Travel Rule, and VASP compliance experience alongside Solidity, ethers.js, and Fireblocks integration depth.
You do fully, from day one. Source code, ML models, design files, infrastructure-as-code, and documentation. Full IP assignment is signed before sprint one. Your codebase lives in your GitHub organization, operable by your team after handoff.
Fixed-scope projects, dedicated teams, nearshore development centers, and time-and-materials. Most fintech engagements run as dedicated teams with fixed milestones. We'll recommend a model during discovery based on your scope, timeline, and how you prefer to manage risk.