Fintech & Digital Banking Software Development Services
Fintech software development services from SpeedMVPs: neobank, wallet, payments, lending, and KYC/AML builds shipped as a compliant, production MVP in 3-4 weeks.
What You Need to Know
Financial services software has a higher bar than most SaaS: a single mishandled balance, a leaked PII field, or a missing audit trail is not a bug — it is a regulatory and reputational event. That is why SpeedMVPs scopes every fintech build around the constraints that actually matter to a regulated product: ledger correctness, idempotent money movement, KYC/AML onboarding, role-based access, encryption at rest and in transit, and a tamper-evident audit log. We design these in from day one rather than retrofitting them after a security review fails. The result is a digital banking MVP you can put in front of a payments partner, a compliance officer, or an investor with confidence — not a demo that quietly breaks the moment real money flows through it.
Our fintech scope covers the products founders and financial-services teams ask for most. Neobank and banking-as-a-service front ends on top of providers like Unit, Increase, Treasury Prime, or Marqeta. Wallets and stored-value flows with double-entry ledgers. Payment experiences on Stripe, including Connect for marketplaces, payouts, and subscription billing. Lending and BNPL platforms with application intake, underwriting workflows, and servicing dashboards. KYC/AML onboarding wired to vendors such as Persona, Onfido, Alloy, or Plaid for identity, document verification, and sanctions screening. And reconciliation, statement, and reporting tooling that keeps your ops team and your auditors honest. If your product needs a back office as well as a customer app, see our [custom software development services](/custom-software-development-services).
Integrations are where most financial software stalls, so we lead with them. We build against core-banking and ledger APIs, card-issuing and processor APIs, ACH and wire rails, open-banking aggregators like Plaid and MX, and fraud and risk vendors — and we wrap every one in idempotency keys, retry logic, webhook verification, and reconciliation jobs so transactions never silently double-post or drop. For teams that also need bookkeeping, invoicing, or ledger sync inside the product, we pair this with our [accounting software development services](/accounting-software-development-services). The point is a financial system that behaves correctly under partial failure, because in fintech the unhappy path is the path that loses money.
The SpeedMVPs delivery model is built for how financial-services teams actually ship. We work in fixed-scope, fixed-price sprints with senior engineers directly — no account-manager layer, no offshore hand-off that slows iteration when a compliance reviewer comes back with a change. AI-assisted coding cuts our development time by roughly 55%, which is how a regulated fintech MVP that traditional agencies quote at $15k-$150k and 3-6+ months becomes a $5k-$25k, 3-4 week build with us. You own 100% of the code and infrastructure — it deploys to your own cloud account, so data residency and access stay under your control. We have delivered 18+ production AI MVPs in 2-3 week timelines (we budget the extra week for fintech's compliance and integration surface), backed by 30+ technologies mastered, 15+ engineers, and 100% global clients. Curious how the underlying SaaS build works? See our [SaaS development services](/saas-development-services) and the honest [SaaS MVP development cost](/saas-mvp-development-cost) breakdown.
Introduction
SpeedMVPs is a fintech software development partner that builds regulated financial products — neobanks, wallets, payment flows, lending platforms, and KYC/AML tooling — and ships them as a compliant, production-ready MVP in 3-4 weeks at a fixed price. Unlike a generic dev shop, we treat SOC 2 and PCI-DSS awareness, audit logging, data residency, and core-banking integrations as foundational, not bolt-ons. You get clean, ownable code on Next.js, Supabase, and Stripe, built by senior engineers — fixed scope, fixed timeline, fixed price, no hourly meter. This is general information, not legal or compliance advice.
What You'll Get
Neobank & Wallet Front End
Customer banking app on a BaaS provider with double-entry ledger, balances, and transaction history that reconciles.
Payments & Lending Flows
Stripe payments, Connect payouts, BNPL/lending intake, underwriting workflow, and servicing dashboard.
KYC/AML Onboarding
Identity, document verification, and sanctions screening wired to Persona, Onfido, Alloy, or Plaid with audit trails.
Core-Banking Integrations
Idempotent integrations to ledger, card-issuing, ACH/wire, and open-banking APIs with reconciliation jobs.
Compliance-Aware Architecture
SOC 2 / PCI-DSS-aware design: encryption, RBAC, tamper-evident audit logs, and configurable data residency.
Ownable Production Codebase
Documented Next.js + Supabase + Stripe code deployed to your own cloud — no vendor lock-in after handoff.
Why Choose Us
- Regulated-fintech focus: ledger correctness, KYC/AML, idempotent money movement, and audit logging designed in from day one
- Compliance-aware architecture — SOC 2 / PCI-DSS-conscious design with encryption, RBAC, and configurable data residency
- 18+ production AI MVPs delivered in 2-3 week timelines; fintech ships in 3-4 weeks to cover the extra compliance and integration surface
- Fixed scope, fixed timeline, fixed price — no hourly meter and no change-order surprises mid-build
- Senior engineers direct, no account-manager layer — the person you brief is the person who builds
- You own 100% of the code and infrastructure, deployed to your own cloud — no vendor lock-in after handoff
- 30+ technologies mastered, 15+ engineers, 100% global clients across fintech, payments, and lending
Client Signals
- "We needed a wallet with a real ledger and Plaid onboarding, not a clickable demo. SpeedMVPs shipped a reconciling, KYC-gated MVP in under four weeks and we walked into our payments-partner review ready."
- "They wired the idempotency and webhook handling we didn't even know we were missing. Money movement just works under failure now, and we own every line of the codebase."
Pricing/Packages Table
Benchmarked for Global (remote-first; USA, UAE, EU, and worldwide fintech teams). Final quote depends on scope, integrations, and launch timeline.
| Package | Price Range (USD) | Includes |
|---|---|---|
| Focused Fintech MVP | $5k-$12k fixed (3 weeks) | A single core flow — wallet, payments on Stripe, or a lending intake — with ledger, auth, basic admin, and one provider integration. Best for validating a financial product fast. |
| Digital Banking MVP | $12k-$25k fixed (3-4 weeks) | Neobank or BaaS front end with double-entry ledger, KYC/AML onboarding, multiple provider integrations, reconciliation, and a compliance-aware admin back office. |
| Scale & Harden | Custom | Take a validated fintech MVP toward production scale — SOC 2 readiness support, observability, multi-tenancy, and additional rails. For teams growing past first users. |
A fixed-price fintech build lands at $5k-$25k versus $15k-$150k and 3-6+ months for a traditional agency, with AI-assisted coding cutting dev time ~55%. Startup credits (Google Cloud up to $350k, AWS up to $100k) further offset infrastructure during the MVP stage.
FAQ
What does fintech software development cover at SpeedMVPs?
We build customer-facing and back-office financial products: neobank and banking-as-a-service front ends, wallets and stored-value flows, payment experiences on Stripe, lending and BNPL platforms, and KYC/AML onboarding. Every build includes a double-entry ledger where money moves, idempotent integrations to your banking and payment providers, role-based access, and a tamper-evident audit log — shipped as a production MVP in 3-4 weeks at a fixed price.
How do you handle compliance like SOC 2, PCI-DSS, and KYC/AML?
We design with these requirements in mind from day one: encryption at rest and in transit, role-based access control, audit logging, configurable data residency, and onboarding wired to identity and sanctions-screening vendors. We do not store raw card data — we use Stripe and tokenized provider flows so PCI scope stays minimal. We help you ship a compliance-ready architecture, but we are engineers, not your auditor or counsel. This is general information, not legal or compliance advice.
Can you integrate with our existing core-banking, card, or open-banking provider?
Yes. We build against core-banking and ledger APIs, card-issuing and processor APIs, ACH and wire rails, and open-banking aggregators like Plaid and MX. Each integration is wrapped in idempotency keys, retry logic, verified webhooks, and reconciliation jobs so transactions never double-post or silently drop. We commonly work with providers such as Unit, Increase, Treasury Prime, Marqeta, Stripe, Persona, Onfido, Alloy, and Plaid, and can adapt to your existing stack.
How long does it take to build a fintech MVP?
Most fintech and digital banking MVPs ship in 3-4 weeks. We budget slightly longer than our standard 2-3 week SaaS timeline because regulated products carry extra surface area: KYC/AML onboarding, ledger correctness, provider integrations, audit logging, and a human security pass. AI-assisted coding cuts development time by roughly 55%, which is how a build that traditional agencies quote at 3-6+ months lands in weeks with us — without skipping the compliance-aware work.
How much does a fintech software build cost?
Our fixed-price range is $5k-$25k depending on scope and the integration and compliance surface — versus $15k-$150k and 3-6+ months for a traditional agency. A focused wallet or payments MVP sits at the lower end; a neobank front end with KYC/AML, lending, and multiple provider integrations sits higher. You get fixed scope, fixed timeline, and fixed price with no hourly meter. Book a scoping call for an exact number tailored to your product.
Do we own the code and our customer financial data?
Yes, fully. We deploy to your own cloud account, so your customer and transaction data never leaves infrastructure you control, and data residency stays in your hands. At handoff you receive 100% of the source code, all credentials, and documentation, and SpeedMVPs retains no ongoing access. There is no SaaS dependency on us and no per-seat licensing — you can extend, audit, or migrate the product freely.
How is this different from your AI Solutions for Fintech page?
Our AI Solutions for Fintech page focuses on applying AI and ML to financial workflows — fraud detection, credit scoring, and robo-advisory. This page is for teams that need the full product built: the actual neobank, wallet, payments, lending, or KYC/AML application, including the ledger, integrations, dashboards, and compliance-aware architecture. Many clients combine both — a built fintech product with AI features layered in where they add real value.
Can you build the back office and admin tooling, not just the customer app?
Yes. Regulated fintech needs an ops and compliance back office as much as a customer app: transaction monitoring, reconciliation and statement generation, dispute and chargeback handling, KYC review queues, and role-based admin access with full audit logging. We build these alongside the customer experience so your operations and compliance teams have the controls and reporting they need from launch — a common request covered by our [custom software development services](/custom-software-development-services).
What technology stack do you use for financial software?
Our core stack is Next.js for the frontend, Supabase (Postgres) for data, auth, and row-level security, Stripe for payments and billing, and Vercel for deployment, accelerated with Cursor and v0 plus OpenAI and Claude for any AI features. For fintech we add a double-entry ledger, idempotent integration layers to your banking and KYC providers, and audit logging. We have 30+ technologies mastered and adapt the stack to your provider and data-residency requirements.
Ready to ship a compliant fintech or digital banking MVP in 3-4 weeks? Book a scoping call with SpeedMVPs for a fixed-price quote.
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