Backend-Driven Fintech Systems AI-Ready Platforms

Full Stack Developer with strong backend ownership

Shipping secure APIs, financial workflows, and production systems that need to work every time.

Backend-focused engineer with 4+ years building banking and cooperative financial platforms across .NET, C#, APIs, microservices, SQL-heavy systems, and regulated integrations, with growing depth in AI, NLP, and LLM-backed solutions.

See Selected Work Contact

Backend .NET C# APIs Microservices Fintech SQL Server PostgreSQL LLMs

Core Strength Backend architecture and business-critical logic

Domain Banking, credit operations, collections, and compliance-sensitive workflows

Growth Edge Applied AI, NLP, and LLM integration for smarter internal platforms

About

Building backend systems where correctness, traceability, and operational stability matter.

I am a Systems Engineer with professional experience delivering software for banking and financial cooperative environments. My strongest work sits at the backend layer: designing APIs, implementing business rules, integrating external services, optimizing data access, and supporting the reliability of production workflows used by internal operations teams.

I also work comfortably across the full stack when the product requires it, but my clearest value is as a backend-focused engineer who can translate financial business requirements into robust technical execution. That includes microservices, reporting systems, database-heavy applications, CI/CD workflows, and architecture decisions that reduce operational friction.

Senior Signals

Owned backend logic for production systems in regulated financial environments.
Designed integrations with external services and compliance-oriented workflows.
Worked across legacy modernization, microservices adoption, and delivery automation.
Balanced backend depth with enough frontend range to ship complete user-facing features.
Pursuing deeper AI capability through a Master's Degree in Applied Artificial Intelligence.

Experience

Production delivery across banking platforms, cooperative systems, and internal operational products.

Full Stack Developer

Integrity Solutions for Banco Guayaquil

May 2025 - Present

Delivering internal banking solutions with backend-heavy responsibilities around integrations, data logic, and production change delivery.

Implemented APIs and external service integrations for contract and approval workflows, including digital signature services.
Optimized SQL Server logic through stored procedures, views, and backend-side performance improvements.
Contributed to continuous enhancements for systems used across multiple business areas, with attention to reliability and operational continuity.
Worked within Azure DevOps-based delivery workflows to support controlled releases and production deployments.

Software Developer / Project Leader

CoopMego Savings and Credit Cooperative

Dec 2021 - May 2025

Led and built systems for financial products, collections, reporting, and internal operations with strong ownership across backend design, implementation, and delivery.

Defined technical solutions and supervised implementations while remaining hands-on in development.
Built APIs and core backend logic in .NET for credit, collections, and operational workflows.
Delivered advanced reporting and query optimization across SQL Server, PostgreSQL, and Sybase.
Improved platform stability through maintenance and migration of legacy systems into more maintainable solutions.
Implemented integrations aligned with compliance and internal automation needs, including SRI and PEP-related solutions.
Worked with CI/CD, microservices, Docker, Jenkins, GitLab, and gRPC in agile delivery environments.

Selected Projects

Production-oriented work presented around business value, architecture, and engineering ownership.

Fintech Mobile Platform Role: Backend Lead / Full Stack Contributor

Gestiona App

Mobile and operational platform for financial field workflows, sales execution, profile management, and route-based collection support inside a cooperative environment.

Impact

Supported real financial field operations through a mobile-first workflow that connected user actions, scheduled tasks, and collections activity in one platform. The product reduced operational fragmentation by centralizing key flows used by internal staff in day-to-day execution.

Architecture

Backend-driven application built around service-backed business logic, operational data flows, and transactional integrity. The platform combined mobile UI, backend APIs, authentication flows, profile management, scheduling, and route-aware map capabilities to support reliable execution in the field.

Role

Contributed across the stack while keeping backend concerns central: designing and implementing supporting APIs, business rules, integration points, and the application behavior required to make mobile financial workflows stable and production-ready.

Backend

.NET, C#, APIs, business logic, authentication, service integration

Frontend

Mobile UI, workflow screens, profile management, route interaction

Platform

Operational workflows, field execution support, production delivery

Civic Platform Role: Full Stack Engineer

Loja Sostenible Web

Multi-surface web and mobile platform for sustainability content, surveys, public participation, and ODS-aligned information flows.

Loja Sostenible public content feed with sustainability publications — Public content feed displaying sustainability publications, ODS categorization, and community-driven information.

Mobile Experience

Mobile publication feed — Mobile content feed with real-time publications.

Mobile post detail with comments — Post detail view with comments and user interaction.

Mobile survey participation — Survey participation and structured input flows.

Impact

Enabled publication management, social content, surveys, ODS content discovery, and community-facing interaction flows in a single platform. The system supported both public-facing consumption and admin or moderator workflows, making it more than a simple content site.

Architecture

Full-stack platform with role-sensitive interfaces, publication and survey management, media handling, navigation across public and administrative views, and structured data flows for content retrieval and user interaction. Designed to support multiple application surfaces without losing coherence in the backend model.

Role

Built and integrated both user-facing and administrative experiences, shaping the data structures, feature flows, and application behavior necessary to support publishing, moderation, content detail views, survey workflows, and profile-level interactions.

Backend

API-backed content flows, data modeling, publication logic, survey processing

Frontend

Public feed, profile views, forms, responsive web screens, mobile experiences

Platform

Admin workflows, moderation, media-rich content, information architecture

Banking Integration Role: Backend Engineer

Digital Signature Workflow Integration

Integrated digital signature providers into contract workflows for internal banking systems, improving execution reliability for compliance-sensitive approval processes.

Impact

Reduced manual friction in document execution and supported more controlled approval flows.

Architecture

External service integration, API orchestration, database-backed workflow states, internal platform connectivity.

Data Platform Role: Backend / Data Engineer

Advanced Reporting and Query Optimization

Designed reporting and data access logic for SQL Server, PostgreSQL, and Sybase environments where operational reporting quality and performance directly affected business visibility.

Impact

Improved reporting dependability and supported faster access to operational and financial data.

Architecture

Stored procedures, views, query optimization, cross-database reporting logic, maintainable data access patterns.

AI Exploration Role: AI / Backend Builder

AI and NLP Information Processing

Built academic and exploratory solutions using Python, NLP, and LLMs to process and analyze information with an eye toward practical backend integration.

Impact

Established a concrete path for adding intelligent services to future internal platforms and automation flows.

Architecture

Python pipelines, information extraction, prompt-driven analysis, AI-assisted processing workflows.

Technical Stack

Grouped to match how engineering leaders evaluate backend and platform candidates.

Backend

Databases

Frontend

DevOps & Delivery

AI Direction

Strengths

Contact

Available for backend and full-stack roles focused on building reliable, production-grade systems.

I am especially aligned with fintech, SaaS, and engineering teams building API-first products, internal operational systems, or AI-enhanced workflows that need reliability, clarity, and backend depth.

franzbm98@gmail.com +593 961100356 Quito, Ecuador Spanish / English

What I bring

Strong backend development experience building scalable APIs and business-critical systems.
Ability to design and implement clean architectures using microservices and distributed systems.
Focus on performance, reliability, and maintainability in real-world applications.
Full-stack capabilities to deliver end-to-end solutions when needed.