Financial Workflow Automation & Banking Integration Platform Development

How Azati helped enhance a financial automation platform that centralizes banking connections, transaction synchronization, reconciliation workflows, ledger management, financial reporting, secure API access, and AI-assisted transaction categorization. The team strengthened core financial processes, supported banking integrations, improved automated testing and platform reliability, enabling continued product development.

Improve financial workflow reliability
6

core platform domains enhanced

10+

security mechanisms maintained and improved

Tens

of banking integrations and financial data sources supported

Technologies used

Ruby on Rails
Ruby on Rails
Ruby
Ruby
JavaScript
JavaScript
React
React
SvelteKit
SvelteKit
PostgreSQL
PostgreSQL
Redis
Redis
Sidekiq
Sidekiq
Docker
Docker
Amazon S3
Amazon S3
OpenAI
OpenAI
Plaid
Plaid
Stripe
Stripe
Tailwind CSS
Tailwind CSS
GitHub Actions
GitHub Actions

Motivation

Tesote Technologies, Inc. is a FinTech company operating in Latin America, with particular relevance to the Colombian and US markets. They developed a financial automation platform to help organizations centralize financial operations across multiple banks and external systems.

The project's goal was to strengthen core financial workflows, improve platform maintainability, support banking integrations, expand automated testing, modernize parts of the user interface, and help the client continue product development without compromising financial correctness.

Business challenges

Challenge 01

Complex reconciliation and ledger workflows

The platform processed financial data across multiple accounts, institutions, and transaction sources. Maintaining accurate reconciliation workflows and ledger logic required careful handling of financial records where inconsistencies could affect reporting precision and operational decision-making.

#1
Challenge 02

Multiple banking integrations and transaction synchronization

The product relied on integrations with banking platforms and third-party services responsible for account synchronization, transaction imports, monitoring, and data processing. Sustaining reliable synchronization processes while supporting bank-specific behaviors increased operational complexity.

#2
Challenge 03

Maintaining financial correctness across interconnected workflows

Any updates to transaction, reconciliation, or ledger workflows had to ensure consistent and accurate data across all interconnected financial processes.

#3
Challenge 04

Balancing product evolution with ongoing product delivery

The application existed before Azati joined the project and continued evolving rapidly. New functionality needed to be delivered while improving existing code quality, expanding automated test coverage, maintaining documentation, and stabilizing legacy components that supported critical financial workflows.

#4

Why Azati?

Ruby on Rails expertise

Azati's deep proficiency in the Ruby on Rails ecosystem allowed our senior engineers to integrate seamlessly into the client's mature environment. We deployed experienced backend and full-stack developers who contributed immediately to the platform's complex network of interconnected services and workflows.

Secure financial automation systems development

Azati has growing expertise building software for regulated industries and supporting secure access control, auditability, and API security patterns relevant to financial applications.

Focus on maintainability and software quality

Beyond feature delivery, Azati invested in enhancing automated testing coverage and documentation, alongside legacy code stabilization to help reduce delivery risk and improve confidence when evolving business-critical functionality.

Flexible engineering augmentation

The team integrated directly into the client's delivery process, working inside established communication, planning, and task management workflows while providing additional engineering capacity.

AI-enhanced workflow automation

Azatians have successfully integrated AI-assisted capabilities into existing business workflows, including financial automation scenarios. Besides AI process automation for regulated banking and insurance sectors, the team provides managed AI, process re-engineering, and legacy-to-AI modernization services.

Strengthen financial automation platforms

Ask Azati to help improve financial software, modernize Rails applications, and support complex banking integrations.

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Solution

Financial automation platform modernization and stabilization

Azati helped improve financial workflows, banking integrations, synchronization processes, reporting capabilities, and platform maintainability.

Key capabilities:
  • Banking connection management
  • Transaction synchronization
  • Reconciliation workflows
  • Ledger management
  • Financial reporting
  • API access management
  • Automated transaction categorization
  • Integration monitoring
  • Documentation support
  • Automated testing
01

Banking сonnectivity and transaction aggregation

The platform centralized financial data from multiple banking institutions and external financial services, giving business users a single source of truth for account activity and transaction data. Azati improved the consistency and availability of financial information across connected systems.

Key capabilities:
  • Bank onboarding
  • Account synchronization
  • Transaction synchronization
  • Missing-data recovery
  • Integration monitoring
  • Third-party financial services
02

Financial operations and accounting workflows

Azati supported the evolution of these business-critical processes, helping maintain correctness across transaction processing, accounting operations, and financial record management while enabling continued product development.

Key capabilities:
  • Reconciliation workflows
  • Ledger management
  • Financial accounting logic
  • Counterparty management
  • Transaction processing
  • Financial consistency controls
03

Reporting and financial visibility

The solution ensured visibility into financial activity across accounts, transactions, and operational workflows. Azati contributed to functionality used by business stakeholders to access and analyze financial information.

Key capabilities:
  • Cash flow dashboards
  • Financial reporting
  • CSV exports
  • PDF exports
  • Operational visibility
04

Enterprise financial APIs and integrations

To support enterprise customers and external systems, the platform exposed financial data through APIs and integration mechanisms. Azati helped maintain and extend functionality that enabled secure programmatic access to financial information while supporting developer experience and integration workflows.

Key capabilities:
  • API access
  • API key management
  • External client integrations
  • OpenAPI documentation
  • Developer tools
05

Security and access management

Given that the platform handled sensitive financial information, secure access control and data protection were critical architecture considerations. Azati worked within an environment that incorporated authentication, authorization, API security, auditability, and financial data protection mechanisms designed to support secure financial operations.

Key capabilities:
  • User authentication
  • Role-based access control
  • Policy-based authorization
  • Session management
  • API bearer token authentication
  • Secure API key management
  • Signed webhook verification
  • Encrypted financial data fields
  • Audit logging
  • Rate limiting and login throttling
06

AI-Assisted transaction categorization

To help automate financial data processing workflows, Azati used OpenAI-powered models and confidence-based decision logic. Transaction categorization requests were processed asynchronously through background jobs while remaining integrated into broader financial operations and review processes.

Key capabilities:
  • OpenAI integration
  • AI-assisted categorization
  • Confidence-based processing
  • Human-review support
  • Asynchronous workflows
  • Background jobs

What Azati did

AreaAzati contribution
Financial workflowsSupported reconciliation processes, transaction processing, and ledger-related functionality
Banking integrationsAssisted with synchronization workflows, bank-specific integrations, and monitoring processes
AutomationMaintained background jobs and financial automation workflows
Platform qualityExpanded automated testing and improved confidence in legacy code modifications
DocumentationUpdated and maintained technical documentation and API-related materials
User experienceParticipated in modernization of selected platform interfaces
StabilizationImproved maintainability and reliability of existing platform components
SecuritySupported authentication, authorization, API security, webhook verification, audit logging, and secure financial data handling
DeliveryEmbedded senior Rails engineers directly into the client's development process

Operational challenges Azati encountered

Financial correctness requirements

Unlike conventional business applications, financial platforms require a high degree of consistency and traceability. Changes involving reconciliation workflows, transaction processing, or ledger functionality took careful validation to avoid introducing inconsistencies into financial operations.

Bank-specific integration behavior

Different financial institutions expose different integration patterns, synchronization constraints, and operational edge cases. Supporting bank-specific logic necessitated continuous attention to synchronization reliability and data quality.

Existing platform constraints

The team worked within an established architecture while continuing to add functionality and improve existing components. This required balancing modernization efforts with business continuity and platform stability.

Remote delivery in a highly collaborative environment

Azati operated as an external remote engineering team integrated into the client's workflow. Effective communication and coordination were critical to maintaining delivery velocity while supporting a product that evolved rapidly.

Modernize financial software safely

Azati helps FinTech companies improve financial workflows, stabilize existing platforms, and strengthen banking integration ecosystems. Capitalize on our firsthand experience with fast-moving client teams, bank-specific integrations, and user-facing functionality modernization within existing products.

Talk to a FinTech engineer

Major achievements

While improving financial workflows and automated validation, Azati helped strengthen the reliability of reconciliation and ledger-related processes without disrupting ongoing platform development. The engagement combined feature delivery, legacy stabilization, integration support, and software quality improvements.

MetricValue
Senior engineers embedded2
Engagement duration4 months
Core platform domains enhanced6
Banking integrations and financial data sources supportedTens
Security mechanisms maintained and improved10+
Third-party services integrated and supported8+

Results & business impact

Improved reliability of financial operations

Azati strengthened reconciliation, ledger, and transaction-processing workflows that support day-to-day financial operations across connected institutions.

Better visibility into financial data

The platform continued to provide centralized access to accounts, transactions, reporting, and financial insights through synchronized banking connections and reporting workflows.

Reduced risk when evolving core financial logic

Expanded automated testing, documentation updates, and legacy stabilization improved confidence in modifying business-critical financial workflows.

Strategic wins

More sustainable platform growth

By combining feature delivery with modernization efforts, Azati helped improve maintainability while supporting continued product evolution.

Stronger foundation for future platform expansion

Enhancements across integrations, APIs, security controls, and workflow automation established a more maintainable foundation for future product development.

Financial system-specific security mechanisms Azati employed

  • Device-based authentication
  • Role-based access control
  • Policy-based authorization
  • User invitations
  • Session timeout and tracking
  • API bearer token authentication
  • API keys stored as secure HMAC digests
  • Signed Plaid webhook verification
  • Financial and account fields encryption
  • Request rate limiting and login throttling
  • Credentials and secrets management
  • Audit logging
  • Sentry error filtering before reporting production errors

Engagement & delivery

Dedicated team model with engineering augmentation

Azati participated as an embedded engineering partner, providing senior Ruby on Rails expertise while working inside the client's established development processes.

Collaborative delivery approach

The workflow followed a continuous delivery model centered around task-based prioritization, direct communication, and iterative implementation. Development activities were coordinated through the client's existing tooling and operational processes.

Team composition

The engagement was delivered by senior Ruby on Rails engineers responsible for backend development, financial workflow improvements, integration support, platform stabilization, testing enhancements, and modernization initiatives.

The described expertise is relevant for

  • Financial automation platforms
  • FinTech application development
  • Banking integrations
  • Reconciliation software
  • Ledger and accounting systems
  • Ruby on Rails modernization
  • Transaction processing platforms
  • Financial reporting systems
  • API-driven financial products
  • Legacy FinTech platform improvement

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