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Launching a Secure FinTech MVP in 90 Days with Ruby on Rails

Industry Financial Technology (FinTech)

  • Client Revenues

    $10B+ Client Revenues

  • Successful Years

    12+ Successful Years

  • IT Ninjas

    1000+ IT Ninjas

  • Successful Projects

    5000+ Projects

Client's Testimonial

Developers.dev was the perfect partner for our MVP. Their RoR team is incredibly efficient, and their understanding of FinTech security requirements is top-notch. They delivered a high-quality, secure product in just three months, which was instrumental in our successful Series A fundraise. We couldn't have done it without them.

Emily Carter, Co-Founder, FinSecure.

Emily Carter, Co-Founder, FinSecure.

Client Overview

Our client was a US-based startup founded by two financial industry veterans. They had a groundbreaking idea for a platform that simplifies compliance reporting for small to medium-sized investment firms. With seed funding secured, they needed to build and launch a Minimum Viable Product (MVP) quickly to validate their concept with early adopters and secure their next funding round. Their requirements were twofold: speed-to-market was paramount, but as a FinTech product, security and data integrity were absolutely non-negotiable. They needed a partner who could balance rapid development with the rigorous demands of financial-grade software.

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FinTech MVP Development Problem

Problem

The client had a well-defined product vision but no in-house technical team. They needed to build a functional, secure, and professional-looking web application from scratch under an aggressive 90-day deadline. Any delays would jeopardize their funding and first-mover advantage.

Key Challenges

Zero Downtime Migration Challenge

Aggressive Timeline

Building a secure, multi-tenant application in 90 days.

Fast Page Load Speed Challenge

Strict Security Requirements

The platform would handle sensitive financial data, requiring robust security measures from day one.

Unique UX Challenge

Undefined Scope

As an MVP, requirements needed to be flexible to allow for iteration based on early feedback.

High Traffic Handling Challenge

Limited Budget

The project had to be delivered within a fixed, seed-stage budget.

Our FinTech Solution Architecture

Our Solution

We proposed our "AI / ML Rapid-Prototype Pod" on a fixed-fee project basis to provide budget certainty. The team consisted of a full-stack RoR developer, a UI/UX designer, and a part-time QA engineer. The solution focused on leveraging RoR's strengths for maximum speed and efficiency.

🎯 Lean Scoping & Prioritization

We conducted a one-week design sprint with the founders to distill their vision into a core set of features essential for the MVP.

⚙️ Convention over Configuration

We leveraged Rails conventions heavily to accelerate development, using established gems like Devise for authentication and Pundit for authorization.

🔒 Security-First Development

We implemented security best practices from the start, including data encryption at rest and in transit, strict access controls, and protection against common OWASP vulnerabilities.

🏃‍♂️ Agile Sprints

The project was run in six two-week sprints, with a functional demo delivered to the client at the end of each sprint for continuous feedback and alignment.

Implementation and Execution

API-First Design

Sprint 0 (Week 1):

UI/UX design, detailed feature prioritization, and technical architecture setup.

Cloud-Native on AWS

Sprints 1-2 (Weeks 2-5):

Focused on building the core data model, user authentication, and organization management features.

Third-Party Integrations

Sprints 3-4 (Weeks 6-9):

Developed the primary compliance reporting workflow and data import/export functionality.

DevOps & CI/CD

Sprint 5 (Weeks 10-11):

Built the administrative backend and user dashboard.

Agile POD Engagement

Sprint 6 (Week 12):

Conducted thorough security testing, final QA, and deployed the application to a secure cloud environment.

Performance Engineering

Deployment:

The application was deployed on AWS using a secure and scalable configuration.

Positive Outcome

⏰ On-Time Delivery

The MVP was launched in exactly 90 days, meeting the critical deadline.

💰 Successful Fundraising

The high-quality MVP was a key asset in the client's pitch deck, helping them successfully close their $5M Series A funding round.

👍 Positive Early Adopter Feedback

The initial cohort of users praised the platform's ease of use and professional design, validating the core product concept.

🏗️ Secure & Scalable Foundation

The MVP was built on a clean, maintainable codebase that served as a solid foundation for future development.

Positive Outcomes of FinTech MVP

Why Choose Us

⚡ Rapid Development Expertise

We know how to leverage RoR for speed without sacrificing quality.

📈 FinTech Domain Knowledge

Our experience with security and compliance was a key differentiator.

💲 Fixed-Fee Model

We provided the budget predictability the startup needed.

🎨 Integrated UI/UX

Our POD model included design, ensuring a great user experience.

🔄 Agile Process

Our iterative approach allowed for flexibility and client collaboration.

🎯 Focus on Business Goals

We understood the MVP's strategic purpose: securing the next funding round.

🛡️ SOC 2 Certified

Our internal security posture gave the client confidence.

📝 Full IP Transfer

The client owned 100% of their valuable new asset.

👋 Seamless Handoff

We provided full documentation for their future in-house team.

Conclusion

This project demonstrates our ability to operate with the speed and agility of a startup while providing the security and process rigor of an enterprise leader. For founders needing to turn an idea into a secure, market-ready product, Developers.dev is the ideal execution partner.