Custom Banking Software Development
Discover how we delivered custom banking software development to enhance flexibility and scalability for a Fintech SaaS platform.
Our Customer
Credit Score Financial Tool
SavvyMoney offers a Smarter Credit Score Solution for online and mobile banking platforms. The company provides comprehensive credit score analysis, full credit report, monitoring, and personalized offers — all in one dashboard.
With SavvyMoney credit score solutions consumers have convenient unlimited access to their credit score anytime and anywhere. Company’s key goals are to empower customers’ control over financial health, to help see how financial decisions might impact scores, to ensure real time monitoring alerts which report about any fraudulent activity, and to provide users with the best savings opportunities on an ongoing basis.
The Challenge
Scaling and Building New Product Features
SavvyMoney’s primary challenges included growing their audience (at the beginning of our partnership it was around 10K users) and improving the website performance and scalability by over 80% so the system could maintain a higher number of users.
Other important challenges were:
- development of the SavvyMoney Pro feature with options of registration, enrolling accounts, and personalized payment plans suggestions
- development of a credit product based on SSN and personal users info
- integration with the SSO solution and other web resources.
The Solution
SaaS Banking Platform Development
SavvyMoney decided to choose AWS as their main hosting platform due to its scalability, reliability, constant innovations, and low latency. Romexsoft has successfully utilized a range of AWS tools during the development of the SavvyMoney’s app, ensuring the app’s high performance, global availability, and security.
Our dedicated team helped SavvyMoney to increase development speed, ensured flexibility in the development process as well as effective scaling of their technical capabilities. We helped the client to decrease their Total Cost of Ownership in comparison to establishing and managing an in-house team.
Romexsoft gathered and analyzed the client’s requirements, defined project roles and functions, established the SDLC, ensured team’s performance, and controlled quality and delivery of consistent results.
At the beginning Romexsoft provided Rescue Mission service and improved website performance from 80% up to 98% by using REST architecture. This gave an opportunity for the system to maintain big amounts of users without crashes.
The rapid traffic growth led to a need of adding resources on Amazon Web Services every time it happened and terminating such resources when the traffic fell for the sake of cost reduction. By adding the AWS auto-scaling feature we created a cost-effective model and reduced man-hours.
The dedicated team built the solution’s microservice architecture in Java Spring Boot framework. For the SaaS banking solution to be even more secure our dedicated team used AWS CodeCommit which securely hosts private Git repositories and makes it easy for teams to collaborate on code, and AWS Parameter Store which provides secure and hierarchical storage for configuration data management.
Our dedicated team developed the credit scoring software aimed at financial health monitoring which allowed the transition into the B2B model targeting credit union users and creating co-branding pages. The key features included:
- credit report card and credit risk score generation
- personalized loan account
- custom payoff plan
- evaluation of debt and expenses related to user’s income
- production of personalized recommendations
- DIY Payoff Newsletter
- high level of safety and data encryption
- backup and restore strategies.
Romexsoft ensured that the solution was in line with SavvyMoney’s vision and expectations and that it worked seamlessly 24/7.
The Result
Scalable Banking Software
Romexsoft’s high-performing dedicated team of software developers built a custom SaaS banking platform on AWS to help SavvyMoney to scale up faster.
The improvements, our dedicated team implemented,which helped SavvyMoney to increase the number of users by 250 times and keep it growing.
Our specialists made sure that the application provided limited access to sensitive data (i.e. all passwords for database access, API tokens or any other sensitive configuration parameters for Production instances) and that the strict separation of application’s codebase from its configuration was in place.
More than 600 banks and credit units across more than 35 digital banking platforms have already integrated SavvyMoney’s credit score solution to accomplish their goals.
Why Romexsoft
Trusted AWS-based Banking Software Development Vendor
Romexsoft delivers end-to-end AWS application development services for FinTech companies. With this service line we help financial organizations expand functionality, improve operational stability, support smooth migrations and modernize cloud workloads with confidence for their solutions.
Our work focuses on building systems that align with financial operations and support well thought-out software evolutions aligned with efficient SDLC. Below are the core development services we provide:
- AWS-ready architecture built for financial workflows, automated operations, and stable performance under changing load
- Custom app development for digital banking, payment systems, trading and investment platforms, and more
- Modernization of legacy apps with AWS through cloud migration, application reengineering, re-architecting, and infrastructure optimizations
- API development and integrations connecting platforms with payment providers, partner systems, and internal financial tools
- MVP and PoC development that rapidly builds core prototypes to validate market fit and technical feasibility.
Frequently Asked Questions
A long-term engineering team includes backend engineers, frontend engineers, QA, delivery manager, a solution architect, and an AWS-certified DevOps specialist who maintains environments and delivery pipelines. The architect guides the technical direction from day one, ensuring decisions support future growth rather than short-term fixes. A delivery manager keeps priorities, timelines, and communication aligned so the team evolves the product in a predictable, scalable way – something that’s difficult to achieve with ad-hoc or feature-only development.
We monitor a mix of availability, performance, and operational metrics to keep the application stable after launch. We track response times, error rates, and throughput to confirm the system performs consistently under real traffic. We also watch CPU, memory, database load, and queue depth to spot bottlenecks early. In addition, we review access patterns, failed logins, and configuration changes to maintain security and compliance.
Yes, our dedicated team can take over your existing codebase and stabilize it before new development begins. We start with a targeted audit of the architecture, security, and delivery pipelines, fix critical issues like failed deployments or database bottlenecks, restore clean CI/CD processes, improve observability, and document the system so future development can move forward safely and predictably.
We support compliance-heavy clients through a DevSecOps approach that embeds security and governance into every stage of delivery. We design AWS environments with proper segmentation, strong access controls, encryption, and audit-ready logging, and we maintain strict separation of environments and documented change management.
