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A Practical Guide to Building Secure Scalable and Compliant FinTech Products for Banks and Startups

A Practical Guide to Building Secure Scalable and Compliant FinTech Products for Banks and Startups

January 20, 2026 | Author: Levon Hovsepyan

The financial technology (FinTech) sector has grown rapidly in recent years, reshaping how banking, payments, and financial services are delivered. 

As the industry moves beyond the pandemic-driven digital boom, it’s entering a more stable and sustainable phase, one that comes with increased regulatory attention.

Whether you’re a bank, a payment provider, or a FinTech startup, understanding and navigating today’s evolving compliance landscape is no longer optional; it’s a strategic priority.

Because FinTech operates across borders, companies face a patchwork of regulations. In the past, innovation often moved faster than oversight.

Today, regulators are catching up quickly, introducing new rules for emerging technologies like AI and cryptocurrency, while updating outdated financial laws to reflect current realities.

For executives, product leaders, and compliance teams, staying ahead of these shifts is essential. 

A missed regulation or unstable architecture can stall product launches, damage trust, or prevent entry into global markets. But with the right approach, compliance doesn’t slow innovation; it enables it.

This guide outlines a practical, expert-led framework for developing financial products that are resilient by design and ready for growth.

What We Will Explore 

  • Common challenges banks, payment providers, and startups face at each stage of product development

  • The core principles of building secure, scalable fintech platforms

  • How VOLO’s modular, compliance-first approach supports faster delivery and long-term success

  • Real-world case studies from firms like Finance in Motion and Perr & Knight

  • A checklist to help you evaluate the right technology partner

Whether you’re updating legacy infrastructure or launching an MVP, this guide is designed to help you build smarter, with confidence, speed, and control.

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Source:Slideshare.net

A world map highlighting countries with open banking or open finance initiatives as of February 2023. ~95 countries have introduced data-sharing rules to foster fintech innovation. Regions in dark blue or light blue have some form of open banking regulations in place, reflecting a global regulatory trend toward greater interoperability in financial services.

As the FinTech sector matures, so does the regulatory thinking behind it. Financial authorities around the world are moving from reactive oversight to structured innovation frameworks. 

The goal: enable responsible growth while mitigating systemic risk

That balance between freedom and control is shaping the future of FinTech across markets.

Experimentation Through Regulatory Sandboxes

One of the most visible developments is the proliferation of regulatory sandboxes, controlled environments where FinTech firms can test new products under relaxed requirements and regulatory supervision.

Examples of sandbox leaders:

  • United States: OCC, SEC, and states like Arizona and Wyoming
  • Gulf region: UAE, Saudi Arabia, Bahrain, all with government-backed FinTech hubs
  • Southeast Asia: Singapore continues to lead with MAS’s robust sandbox program

These programs benefit not only startups. They also enable regulators to better understand innovation and adjust rules accordingly, transforming regulation into a learning loop rather than a roadblock.

Why it matters: Sandboxes accelerate time-to-market, mitigate legal uncertainty, and lay the groundwork for more informed long-term oversight.

Growing Cross-Border Collaboration

Innovation doesn’t stop at borders, and regulators know it. That’s why cross-country coordination is becoming a priority

More than 70 regulatory bodies, including the U.S. CFTC, FDIC, and SEC, have joined the Global Financial Innovation Network (GFIN) to exchange insights and pilot harmonized frameworks.

Emerging global norms:

  • Alignment with FATF standards on anti–money laundering (AML) and counter-terrorist financing
  • Joint sandbox pilots under GFIN
  • Growing regional convergence in areas like data residency and KYC requirements

The takeaway: A fully unified regulatory regime may be years away, but the groundwork for global interoperability is being laid.

Open Banking Is Going Mainstream

What began as a European experiment is now a global financial infrastructure trend

Open banking regulations, led by the EU’s PSD2 directive, require traditional banks to securely share customer data with user consent via APIs.

As of 2023, the World Economic Forum reports that over 95 countries have implemented some form of open banking or open finance regulation.

What open banking enables:

  • FinTechs can build faster, more personalized payment and finance apps
  • Customers get more control and transparency over their financial data
    Regulators foster competition and innovation without compromising stability

This trend is more about data; it's about reshaping the competitive dynamics of financial services.

Consumer Protection and Cybersecurity on the Front Lines

As FinTech platforms scale, so does their exposure to cyber and compliance risks. Regulators are responding with updated privacy lawssecurity standards, and enforcement frameworks tailored to digital platforms.

Recent shifts include:

  • GDPR-style data laws adopted in the UAE and Saudi Arabia
  • New mandates applying the “travel rule” to crypto fund transfers in the EU and the U.S.
  • Stricter cybersecurity baselines to protect customer data

FinTechs are now expected to design for trust, with compliance baked in, not added later.

Bringing Emerging Tech Under the Regulatory Umbrella

AI, crypto, and DeFi are no longer edge technologies. They’re becoming central to financial services, and regulators are responding. 

The EU’s AI Act is a prime example: a comprehensive framework for the ethical use of AI, expected to shape compliance standards worldwide.

At the same time, crypto regulation is solidifying:

  • The EU’s Markets in Crypto-Assets (MiCA) law enforces licensing and conduct rules across all member states
  • U.S. regulators like the SEC and CFTC are enforcing existing laws aggressively against unregistered crypto activity

The message is clear: innovation is welcome, but no one operates outside the rules anymore.

Regulation as a Catalyst for Growth

Despite challenges, most FinTech firms see regulation heading in the right direction. A 2025 global survey revealed that 62% of firms considered their region’s regulations “adequate” for their operations. 

The rest cited friction from licensing ambiguity and slow inter-agency coordination.

What’s improving:

  • Global AML practices are converging
  • Open banking frameworks are driving new partnerships
  • Sandboxes are shortening innovation cycles

FinTech regulation means becoming a growth enabler, especially for companies ready to scale across regions.


5 Challenges Faced By Banks, Payment Providers, And Startups

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While regulatory clarity is improving, the burden of implementation still falls squarely on the shoulders of fintech leaders. 

Whether you’re running a scaled bank, building a payments platform, or launching a fintech startup, the pressure is about execution. Below are the most pressing challenges faced across segments today.

1. Fragmented Compliance Slows Product Delivery

One of the biggest hurdles is that regulation doesn’t scale cleanly across borders. Even when global frameworks exist, like FATF’s AML guidance or GDPR-inspired privacy rules, local licensing, onboarding, and enforcement vary widely.

  • A payment provider expanding from the UAE to Germany may face three different onboarding flows, four KYC processes, and conflicting API security requirements.
  • A startup building a crypto wallet has to interpret overlapping rules from both securities and commodities regulators, often without clear precedent.

The result? Compliance delays are now a top factor behind missed product deadlines and staggered go-to-market strategies. 

Regulatory complexity has shifted from a legal consideration to a technical bottleneck.

2. Product Architecture Now Carries Compliance Risk

In the past, compliance was managed through documentation and reporting layers. Today, it starts with architecture. 

If your product can’t isolate user data by region, enforce role-based access, or support consent workflows at the code level, you’re not just non-compliant, you’re unshippable.

This shift is especially challenging for:

  • Banks modernizing legacy systems that were never built with digital identity or cross-border flows in mind

  • Fintech startups relying on prebuilt stacks that don’t offer modular controls

Note: Many teams discover too late that their system isn’t compliant by design, forcing costly rebuilds mid-development.

3. Licensing and Partnerships Add Legal Friction

Financial institutions operate in a highly regulated and permissioned environment. Startups must obtain e-money licenses or partner with licensed banks. 

Payment processors need local acquiring agreements. Crypto firms navigate state-by-state MSB licensing requirements in the U.S.

  • A B2B lending platform may need to secure an arrangement with a local financial institution in every region it serves.
  • Even with passporting rules in the EU, reporting obligations and document templates change from country to country.

This patchwork of rules adds delays, introduces legal risk, and increases dependency on external partners, slowing down innovation and expansion.

4. Talent and Expertise Gaps Slow Execution

Many fintech teams face a critical execution gap, not from a lack of vision, but from a lack of specialized expertise. Legal teams understand regulation, but often don’t speak in code. 

Engineers are agile, but not trained to translate statutes into system logic. And product owners frequently find themselves stuck between contradictory priorities.

This disconnect is especially evident in multi-region rollouts, where minor misalignments (e.g., data retention defaults or UX consent copy) can result in compliance failures.

Without cross-functional fluency, teams lose time interpreting requirements, retrofitting systems, and responding to audits rather than building new features.

5. Rapidly Shifting Expectations Demand Constant Recalibration

Even where a company achieves compliance today, the landscape continues to shift. AI model governance, ESG disclosure requirements, and DeFi rules are all on regulators’ radars. 

That means today’s stable system could need major adjustments six months from now.

Fintech firms must now treat compliance as a living function, a continual part of product maintenance and roadmap planning.

Every stakeholder, whether a CTO, CPO, or compliance lead, is now grappling with a common realization: regulatory pressure isn’t just growing; it’s reshaping how products are designed, shipped, and scaled.

The opportunity? Teams that treat compliance as a strategic design layer are building faster, safer, and more adaptable systems. And they’re better positioned to grow across markets with confidence.

Core Principles For Building Secure, Scalable, And Compliant FinTech Products

Security and compliance work best when they’re embedded in early design, not added as a post-launch fix. 

For FinTech firms, this means working backward from audit and regulatory requirements to define system behavior. 

What that looks like in practice:

  • Defining data retention rules based on region-specific financial laws.
  • Automating audit logs for all customer interactions and transactions.
  • Ensuring that every third-party integration meets agreed risk thresholds.

This approach reduces friction later, especially during licensing reviews, due diligence, or cross-border expansion.

Security Layers That Match Your Risk Profile

A one-size-fits-all approach to security won’t cut it in FinTech. Instead, we help clients build layered defenses tailored to their operating model, threat profile, and regulatory environment.

Key building blocks include:

  • Granular access controls with role- and permission-based authentication.
  • End-to-end encryption for sensitive customer and transaction data.
  • Anomaly detection for real-time fraud monitoring.
  • Secure-by-default infrastructure, whether cloud-native or hybrid.

Each layer reinforces the next, minimizing exposure without slowing the product down.

Operational Transparency From Day One

Real-time visibility into how your systems perform and how your teams interact with them isn't just helpful. It’s essential.

Building with observability in mind means:

  • Integrated monitoring tools that flag issues before they cascade.
  • Clear escalation paths and audit trails for internal teams.
  • Automated dashboards that simplify compliance reporting.

Clients, regulators, and internal teams all benefit from the same thing: transparency. If your platform can demonstrate accountability at every layer, trust follows.

Build With Global Readiness, Even If You Start Local

Every FinTech product has the potential to grow beyond its original market. 

The fastest-scaling platforms don’t wait until international expansion to address regional standards; they bake adaptability into the foundation.

What global readiness looks like:

  • Multilingual and multi-currency support from the outset.
  • Configurable compliance engines tied to local regulatory logic.
  • Clear data residency controls and separation mechanisms.
  • Scalable infrastructure that can isolate, throttle, or duplicate services as needed.

You don’t need to launch in five markets tomorrow. However, you must ensure that your stack won’t hold you back when the opportunity arises.

From regulatory shifts to sudden growth, high-quality FinTech products are engineered to respond with stability and clarity. 

That’s besides complexity, it’s about making smart decisions upfront, grounded in compliance, security, and operational flexibility.

VOLO’s Approach: How We Build FinTech Products That Scale, Comply, And Last

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At VOLO, scalability, security, and compliance are not post-launch considerations; they’re engineered into the product from day one. Whether you're launching a payment platform or rebuilding core banking infrastructure, our team helps you deliver systems ready for growth, regulation, and real-world complexity.

Compliance by Design

For many teams, regulatory readiness is something that comes after a product is built. At VOLO, compliance is an integral part of product design from the start.

We work directly with your legal and product stakeholders to ensure alignment with frameworks such as:

  • PCI DSS for payment security
  • GDPR for data privacy
  • MiCA and other financial sector laws for digital assets

These requirements are translated into technical specifications and system behavior, which are integrated into the architecture from the outset. This approach helps teams:

  • Reduce rework during audits or legal reviews
  • Avoid delays caused by late compliance retrofits
  • Gain early clarity on approval paths across jurisdictions

Architecture Built for Growth

A scalable platform isn’t just one that handles more users. It’s one that evolves with your product and your market.

Our engineers build using modular microservices that separate foundational logic from innovation areas. This allows faster iteration without compromising stability.

We also design around growth-critical features, including:

  • Support for multi-jurisdiction operations
  • Clean data structuring for compliance and reporting
  • Built-in observability to make debugging and monitoring faster

With this setup, your platform can launch with confidence and adapt as new products, markets, or partners come online.

Also, read:

Security Built Into Every Layer

Modern FinTech platforms handle sensitive data and high-value transactions, making security a core business function, not just a technical detail.

Our security practices are integrated from day one and include:

  • End-to-end encryption
  • Role-based access controls
  • Zero-trust design for sensitive workflows
  • Embedded security testing in every release cycle

This approach helps protect client assets, customer data, and regulatory standing, especially in high-risk or cross-border environments.

A Long-Term Technology Partner

We don’t disappear after deployment. VOLO stays involved throughout your growth journey, aligning with your product roadmap and compliance cycles.

Our teams bring hands-on experience working with:

  • Startups preparing for regulatory due diligence and investor scrutiny
  • Established institutions modernizing legacy systems
  • Cross-border FinTechs managing evolving licensing and compliance rules

Whether you're launching a new product or expanding into new regions, we work alongside your teams to deliver software that holds up under pressure and scales with purpose.

Let’s build something that lasts. Schedule a strategy call with VOLO to see how our FinTech teams can support your growth, compliance, and product evolution.

Talk to a VOLO Specialist About Your FinTech Vision

Case Studies: What Scalable, Compliant FinTech Delivery Looks Like In Practice

The best way to understand how VOLO works is through its actual application. Each case below shows how we partner with complex organizations to solve specific challenges, not with a generic tech stack, but with tailored systems that support growth, compliance, and performance in the real world.

1. Finance in Motion

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Industry: Sustainable Investment / Impact Finance
Headquarters: Germany | Operating in 30+ Countries

Challenge
Finance in Motion had outgrown its internal systems. Managing multiple impact-focused funds across regions required consistency, speed, and transparency, but teams were relying on spreadsheets, fragmented workflows, and manual reporting.

How We Helped
We worked side-by-side with their development team to co-create a central platform, Fimpact. The system handles everything from fund-specific indicators to audit-ready disclosures, all in one secure environment.

Results

  • One shared system for impact data across global teams

  • Automated workflows that cut manual reporting time

  • Built-in logic for each fund’s methodology

“What impressed us in VOLO was its no-nonsense attitude… our signature project, our magnum opus, a complex solution at the core of Finance in Motion’s DNA: impact measurement.”
Matteo Snidero, IT Director, Finance in Motion

VOLO Cases | Finance in Motion | Transformative Collaboration

2. Perr & Knight

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Industry: Insurance Consulting & Regulatory Compliance
Region: United States

Challenge

Three of Perr & Knight’s key platforms were unstable due to poor handoff from a previous vendor. Client onboarding slowed, operations were disrupted, and trust in the tools was fading, both internally and externally.

How We Helped

We stepped in to stabilize, rebuild, and modernize each platform. That included resolving core bugs, redesigning the backend, and helping move their tools toward SaaS delivery, with VOLO teams fully embedded in day-to-day development.

Results

  • All core systems stabilized and re-architected

  • Self-serve features rolled out for client compliance workflows

  • Platform usage scaled 5x without performance bottlenecks

This wasn’t just about fixing code. It was about making sure the technology could support the business, not get in its way.

3. Gap International

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Industry: Management Consulting

Reach: 65+ Countries

Challenge

Gap International had a deeply nuanced consulting model, but its digital tools were outdated and disjointed. They needed a way to deliver their expertise online, at scale, without compromising its depth or quality.

How We Helped

VOLO became their long-term technology partner. Together, we translated their consulting methodology into an intelligent digital platform that supports real-time collaboration, faster onboarding, and mobile-first delivery for clients and consultants worldwide.

Results

  • Fully digitized consulting operations

  • 10x more users supported across geographies

  • 4x faster onboarding for new clients and engagements

4. JUNO Hospitality Suite (934 Ltd.)

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  • Industry: Hospitality Technology, Hotels, Payments

  • Client: 934 (WeAre934)

  • Region: Global

Challenge

Hotels were managing payments through disconnected systems, front desk, online bookings, restaurants, and reconciliation were all fragmented, increasing manual work and errors.

Solution

Together with 934, we built the JUNO Hospitality Suite: a cloud-based platform that integrates with existing PMS and hardware to unify hospitality payments and operations.

Key Capabilities

  • Unified payments from all guest touchpoints

  • Real-time financial dashboard and automatic reconciliation

  • Middleware to connect modern platforms with legacy tools

  • Nexus module for certified card readers

  • Secure universal token system for guest data

Results

  • Simplified operations across departments

  • Oracle-certified and integrated with Shiji, Infor, Protel, Sihot, and others

  • Scalable architecture used across hotel groups

  • Enabled global payment support through partners like Wallee

“It’s really about the opportunities to increase efficiency, operational excellence in hospitality, sports, and entertainment.”
— Christian Frei, Owner, 934 Ltd.

Why This Matters

In each of these partnerships, the priority wasn’t just clean code or modern, it was building systems that remove friction, reduce risk, and make scaling across borders and regulations much more manageable. 

These aren’t isolated wins. They’re proof that with the right partner, complex FinTech products can move faster and stay reliable, even as they grow.

Ready to move from tech debt to long-term scale?

Schedule a consultation with our FinTech specialists

Checklist For Choosing A FinTech Development Partner

Finding the right technology partner is one of the most important strategic decisions a FinTech company can make. Whether you're building a new platform, modernizing legacy systems, or preparing for regulatory audits, your partner will shape the speed, security, and sustainability of your product.

Use this checklist to assess whether a development firm is equipped to deliver what your business truly needs, not just code, but strategic alignment and domain understanding.

1. Do They Understand FinTech Compliance Frameworks?

A capable partner should be fluent in industry-critical standards such as:

  • PCI DSS for secure payment systems
    GDPR / CCPA / UAE Data Laws for privacy and consent
  • MiCA / SEC / CFTC regulations for crypto and digital assets
  • KYC/AML standards for onboarding and anti-fraud

Look for evidence of this knowledge in their architectural decisions, not just their marketing.

2. Can They Build for Scale and Complexity?

It’s not enough to launch a product. You need one that grows with you.

Ask:

  • Do they design modular architectures for iterative releases?
  • Have they built multi-region platforms with jurisdiction-specific logic?
  • Can they handle real-time data processing and API-heavy ecosystems?

3. Do They Work Well With Both Business and Engineering Teams?

Success depends on translating strategic goals into working systems. Look for a team that:

  • Understands product roadmaps and stakeholder priorities
  • Can bridge compliance, legal, and development conversations
  • Embeds into your team rather than operating in a silo

 4. Do They Provide Operational Visibility and Support?

Ask how they handle:

  • Testing and QA – Do they provide structured regression testing, performance testing, and automated CI/CD pipelines?
  • Monitoring – Are observability tools in place for issue detection and root cause analysis?
  • Post-launch – Do they offer ongoing iteration support, updates, and team continuity?

5. Do They Show a Track Record of Long-Term Partnership?

Review:

  • Case studies with measurable results
  • Duration and depth of past engagements
  • Executive testimonials that go beyond generic praise

A vendor builds once. A true partner evolves with your business.

Technology alone won’t future-proof your business. But the right tech partner, with sector knowledge, architectural rigor, and long-term commitment, can. 

If you’re evaluating partners for an upcoming FinTech initiative, this checklist is a solid place to begin. Bring it into your next RFP conversation.

Future-Proofing Your FinTech Vision

Building a secure fintech platform requires more than regulatory checkboxes. It calls for clear planning, strong technical foundations, and deep alignment with industry standards. 

Whether you're developing an MVP fintech app, modernizing banking systems, or managing fintech integrations, every decision shapes your ability to scale and compete. 

With a structured approach to fintech software development, companies can build platforms that are secure, reliable, and ready for long-term growth. 

VOLO helps teams launch with confidence and grow with control, delivering systems that meet today’s demands and support tomorrow’s opportunities.

At Glance Background
levon hovsepyan avatar

Levon is an experienced technology consultant leading the strategic direction of VOLO. His work focuses on AI enablement, digital transformation, and how organizations adopt and govern technology at scale.

 

With a background in engineering and product leadership, he brings a systems-level perspective to technology and business decisions. His writing explores AI adoption, engineering discipline, and leadership in building reliable digital systems in complex, regulated environments.

Levon Hovsepyan Chief Business Officer

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Frequently Asked 
Questions

Still have a question?

Contact us We'll be happy to help you.

Levon HovsepyanNune Darbinyan

When selecting a tech stack for fintech software development, it’s essential to prioritize modularity, security frameworks, and compliance support. Look for backend technologies that support real-time data processing, strong encryption protocols (such as TLS and AES), and frameworks that allow for seamless integration with KYC/AML and transaction monitoring tools. A modern tech stack should also enable continuous deployment and infrastructure-as-code to help your platform scale securely over time.

A secure fintech platform is designed to protect sensitive data from breaches, fraud, and unauthorized access. This includes encryption, access controls, and real-time monitoring. A compliant platform, on the other hand, meets specific financial regulations such as PCI DSS, GDPR, or MiCA. Security prevents breaches; compliance ensures you're operating legally. For a successful fintech product, you need both to be embedded from the start.

Fintech integrations should be part of your earliest product planning discussions. Integrations with payment processors, identity verification services, banking APIs, or blockchain networks can introduce technical and regulatory complexity. Planning for them early helps avoid architectural rework and accelerates your time to market. Choose vendors with robust documentation and security credentials to simplify integration.

A solid MVP fintech app roadmap typically includes discovery and compliance scoping, architectural planning, initial feature selection (such as onboarding, KYC, or core transaction flows), rigorous testing, and go-live with observability tools. While minimal in scope, an MVP should never compromise on data protection or compliance fundamentals.

No, banking modernization also benefits fintech startups using outdated or rigid development frameworks. Whether you're updating a core banking platform or building a new app from scratch, modernization means adopting modular microservices, secure-by-default infrastructure, and APIs that enable future growth. The objective is to build flexible systems that adapt quickly to regulatory change and market demand.

You can validate scalability through performance testing, infrastructure audits, and regulatory simulations. This means simulating high user loads, ensuring data residency compliance in target regions, verifying readiness for multilingual and multicurrency use, and stress-testing your fintech integrations. A scalable platform handles both traffic spikes and regulatory complexity without disruptions.

Frequent pitfalls include underestimating compliance during early product design, selecting insecure or non-modular tech stacks, delaying fintech integrations, or lacking alignment between legal, product, and engineering teams. Building an MVP fintech app without considering long-term scale and regulation also creates costly roadblocks later. A development partner experienced in secure fintech platform delivery can help navigate these risks.

In some cases, yes. You may launch a limited-scope MVP that excludes regulated functions or operates in a test environment. For anything involving transactions or data handling, you’ll need licensing or a licensed partner such as a bank-as-a-service provider. This allows you to validate core features and collect early feedback while pursuing full regulatory clearance.

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