Fintech Software Development Nearshore for the US & Europe
Secure web and mobile platforms for payments, lending, investing and financial operations, built by a nearshore engineering team in Buenos Aires.
A senior engineering team in Buenos Aires working in English, in your time zone.
Why Fintech & Financial Services Companies Choose TAIT
Financial products live or die on reliability, security and auditability. TAIT designs fintech platforms with those constraints from the first sprint: least-privilege access, encryption in transit and at rest, audit logs, idempotent payment flows and clear separation between your core ledger and third-party providers. We integrate with banking, KYC and payment APIs so your team can focus on the product, and we work alongside your compliance advisors on the regulatory side.
Security by Design
Role-based access, secrets management, encrypted data stores and audit trails built into the architecture, not added later.
Reliable Money Movement
Idempotent transactions, reconciliation jobs and webhook handling that tolerate retries and provider outages.
Reduced PCI Scope
Tokenized card handling through providers like Stripe or Adyen so sensitive card data never touches your servers.
Scalable Cloud Infrastructure
Infrastructure as code on AWS with monitoring and alerting, so the platform grows with your user base.
Custom Modules & Features
Every component is designed around the way your business actually operates.
Customer Onboarding & KYC
Identity verification and KYC/AML checks through providers such as Onfido, Persona or Sumsub.
Payments & Wallets
Card, ACH, SEPA and open-banking payments, balances, payouts and transaction history.
Lending Workflows
Applications, decision rules, repayment schedules and collections dashboards.
Investment Dashboards
Portfolios, performance charts and real-time market data from your data providers.
Banking & Open Banking APIs
Integrations with Plaid, TrueLayer, banking-as-a-service platforms and core banking systems.
Back Office & Reporting
Internal tools for operations, support and finance, with exports your auditors can use.
How We Handle Your Code and Data
Security in fintech starts with how the development team works, not only with the architecture it delivers.
NDA Before Any Data
We sign an NDA before you share specs, credentials or data, and can work under your own security policies and vendor agreements.
Access Through Your Accounts
Repositories, cloud and tools stay in your organization. We get least-privilege access with two-factor authentication, removed when the engagement ends.
No Production Data in Development
We build and test with synthetic or anonymized data. Production access is limited, logged and only granted when a task requires it.
Secrets Out of the Code
API keys and credentials live in a secrets manager or environment configuration, never in the repository.
Reviewed, Scanned Code
Pull requests are reviewed before merging and dependencies are scanned for known vulnerabilities.
You Own the IP
Source code, documentation and intellectual property belong to you, and we hand over everything needed to operate the platform.
Ways to Work Together
Pick the model that fits your stage. You can move from one to another as the product grows.
Fixed-Scope Project
An MVP or a defined feature set with a written scope, phases, timeline and price agreed before development starts.
Team Extension
Our engineers join your team, working in your repositories, tools and sprint cadence with daily time-zone overlap.
Monthly Retainer
Ongoing development, maintenance and monitoring after launch, with priorities agreed with your team each month.
How we build your platform.
Discovery & Architecture
We review your goals, workflows and existing systems, then deliver a written scope, architecture and estimate.
Full-Stack Development
We build in short sprints with React, Next.js and Node.js, with demos you can review every step of the way.
Integrations & Cloud
We connect your third-party tools and data, and deploy on AWS or Vercel with monitoring from day one.
Support & Growth
After launch we maintain, monitor and improve the platform, including performance and technical SEO.
Fintech & Financial Services Development FAQ
Can you work under our compliance and security requirements?
Yes. We follow your security policies, access controls and review processes, sign NDAs, and document architecture decisions so your compliance team can assess them.
Do you build MVPs or only large platforms?
Both. Many fintech projects start with a focused MVP on top of existing providers, then move to more custom infrastructure once volume justifies it.
Which technologies do you use?
React and Next.js for web, React Native for mobile, Node.js for APIs, PostgreSQL for transactional data and AWS for infrastructure.
How do you collaborate with an in-house team?
We can own a product end to end or join your team as an extension, working in your repositories, tools and sprint cadence with daily time-zone overlap.
How much does fintech development cost?
Projects start at USD 350 for small scopes. Fintech platforms are quoted after a discovery call, because cost depends on features, integrations and security requirements. You receive a written scope with phases, timeline and price before any development starts.
Who owns the code and intellectual property?
You do. The code lives in your repositories from day one, and all source code, documentation and intellectual property are transferred to you.
Can you support a PCI DSS or SOC 2 audit?
We can build with the technical controls those frameworks expect, such as access control, logging, encryption and change management, and document them for your auditors. The certification itself belongs to your organization and its auditors.
How long does a fintech MVP take?
It depends on the scope and the providers involved. After discovery we send a timeline by phase, so you know when each part will be ready for review.
How do we get started?
Book a call or message us on WhatsApp. We review your product and requirements, then send a written scope and estimate.