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ESNEIDER
BRAVO

Senior Backend Engineer · Python · FastAPI · AWS

Senior Software Engineer with 8+ years building scalable fintech platforms. Specializing in Python, FastAPI, microservices, and AWS — shipping systems that combine performance, reliability, and AI-first thinking.

Esneider Bravo — Senior Backend Engineer specializing in Python, FastAPI, and AWS
8+

Years of logic

The Philosophy

"I believe in intentional architecture. Every line of code must support the weight of future scale."

I have built and evolved distributed systems at LendingFront — designing Python microservices with FastAPI and Flask, scalable REST APIs, Kafka-driven pipelines, and React frontends. My constant objective is transforming technical complexity into reliable, measurable products deployable on AWS at scale.

AI-First Architecture

Tools, platforms and protocols I use to build and ship AI-powered products.

AI Coding Assistants

GitHub CopilotCursorChatGPT (GPT-4o)Claude (Anthropic)

LLM APIs & Orchestration

OpenAI APIAnthropic APILangChainLangGraph

Model Context Protocol

GitHub MCPJira MCPPostgreSQL MCPConfluence MCPFigma MCP

Design & Prototyping

Figma Dev ModeFigJam

AI Dev Workflow

OpenSpec CLIArtifact-Driven ChangesSkillsAgentsSub-agents

Technical Skills

Frontend

  • React.js
  • Next.js
  • MUI v5
  • TypeScript
  • Auth0
  • Redux
  • Webpack
  • Formik
  • Recharts
  • jQuery
  • HTML5
  • CSS3

Backend & Languages

  • Python (FastAPI, Django, Flask)
  • SQLAlchemy
  • Alembic
  • Celery
  • Marshmallow
  • Node.js
  • PHP (Laravel)

Data & Messaging

  • PostgreSQL
  • MySQL
  • Redis
  • Kafka
  • AWS S3
  • Elastic APM
  • Snowflake
  • Fivetran
  • Looker
  • dbt

Cloud & DevOps

  • AWS
  • Docker
  • Jenkins
  • Ansible
  • GitHub Actions
  • Kubernetes

APIs & Architecture

  • REST APIs
  • GraphQL
  • Microservices
  • Distributed Systems

Integrations

  • Salesforce
  • Twilio
  • Sendgrid
  • Rollbar
  • Plaid
  • Looker

Core Capabilities

Clean ArchitectureSOLID PrinciplesTest-Driven Development (TDD)System Design (Scalable Systems)SQL Query OptimizationScalable API DesignPerformance TuningObservability & MonitoringAI-First ArchitecturesAI Integration in MicroservicesTechnical LeadershipCode ReviewsMentoringAgile / ScrumMultidisciplinary Team Leadership

Work History

Experience

LendingFront

Senior Software Engineer

CurrentJun 2024 – Present
  • Developed backend solutions using Python (FastAPI, Django)
  • Designed scalable REST APIs for financial systems
  • Applied clean architecture and best practices

LendingFront

Integration Team Lead

Aug 2023 – Jun 2024
  • Aligned Development and QA teams
  • Ensured high-quality software delivery
  • Removed bottlenecks and improved processes

LendingFront

Software Engineer II

Nov 2022 – Oct 2023
  • Built backend systems using Python and Flask
  • Led transition to microservices with Node.js
  • Managed a team of 3 developers
  • Optimized SQL queries (MySQL / PostgreSQL)
  • Implemented CI/CD pipelines with Jenkins and Docker

LendingFront

Software Engineer

Mar 2021 – Oct 2022
  • Developed REST APIs with Node.js
  • Built applications with Python (Flask)
  • Improved database performance
  • Implemented automated testing
  • Contributed to CI/CD processes

Ladys Confecciones SAS BIC

Web Developer

Aug 2020 – Mar 2021
  • Built e-commerce marketplace with PHP & Laravel
  • Integrated payment gateways
  • Developed REST APIs
  • Implemented testing with PHPUnit
  • Improved frontend performance

Universidad del Magdalena

Web Developer

Feb 2019 – Aug 2020
  • Developed academic web systems (PHP, jQuery)
  • Optimized database performance
  • Implemented testing frameworks
  • Worked with Agile methodologies
  • Documented systems and gathered requirements

Featured projects

FinTech Growth

Marketplace Expansion Platform

Designed and evolved a partner onboarding platform with typed workflows, business validations, and eligibility automation.

Impact: Faster onboarding, stronger frontend/API consistency, and reduced operational effort.

Lending Core

Origination Core API

Consolidated origination logic into versioned APIs to support continuous change without breaking existing integrations.

Impact: Higher release stability, lower regression risk, and better functional traceability.

Payments & Servicing

Loan Servicing Engine

Strengthened payments and loan-state services with robust rules, observability, and safer critical operations.

Impact: Better operational traceability, fewer incidents, and stronger confidence in transactional flows.

READY TO BUILD SOMETHING BIG?

Let us talk about your next product, architecture, or modernization initiative.

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