Jaime Monroy

Feb 2025 — Present · Uruguay

Full-Stack Developer · Alabama Solutions

Banking · Mid-Senior

Scope

Banking product development. Migration of banking data. Migration of ASP.NET Web Forms to Angular. New SQL Server Data Model.

What I did

Adopted AI coding assistants, cutting development and refactoring time by up to 25%, rebuilt error handling and the audit log module.

• .NET Core
• Angular
• SQL
• Azure
• CQRS
• xUnit
• Generative AI
• Cursor
• Claude Code
• Codex

Aug 2024 — Feb 2025 · Colombia

Full-Stack Developer · Constructora Legado

Construction · Senior · Team led: 5 people

Scope

End-to-end design, consulting and technical follow-up for an IoT platform that collected data from smart helmets and on-site sensors to monitor workforce location, activity, and safety, supporting operational decision-making on construction sites.

Key Achievements

Set the data governance and architecture for a wearable device platform, and delivered the minimum viable product shown to investors.

• .NET Core
• ReactJS
• Python
• Snowflake
• MongoDB
• Azure
• AWS
• Databricks
• Microservices
• Serverless
• Event Sourcing
• TDD

Jul 2022 — Jun 2024 · England

Full-Stack Developer, Data Analyst · Endava

Insurance, Payments, Banking · Senior

Scope

Banking data migration from eight sources into Snowflake, and an anti-fraud module for online payments.

What I did

Built the ingestion and validation for the migration, delivered in ten months, and shaped the anti-fraud architecture, delivered in eight months.

• .NET Core
• Angular
• Python
• Spark SQL
• Snowflake
• SQL Server
• Azure Functions
• Azure Data Factory
• Databricks
• CQRS
• Apache JMeter

Apr 2022 — May 2022 · Panama

Tech Lead · Scrum Master · KIRU

Online Payments · Team led: 4 people

Scope

End-to-end design, consulting, and technical leadership for an online payment platform that enabled employees to pay subscription and recurring bills through payroll deductions, helping improve on-time payments while offering employees discounted payment benefits.

Key Achievements

Led API development and performance, ran Scrum ceremonies, and mentored the team on what to cover with unit tests.

• .NET Core
• ReactJS
• Python
• SQL
• Azure
• AWS
• REST
• xUnit
• Scrum

Aug 2021 — Apr 2022 · USA

Full-Stack Developer · Arroyo Consulting

Insurance · Senior

Scope

New features and support for an insurance ERP built around risk calculation, with around 50,000 users.

What I did

Built proofs of concept that informed the architecture decisions and met a 90% coverage standard across the whole system.

• .NET Core
• Angular
• SQL
• Elasticsearch
• Azure
• SonarQube
• xUnit
• REST
• GraphQL

Feb 2021 — Jul 2021 · USA

Full-Stack Developer · MAS Global Consulting

Mechanical Engineering · Mid-Senior

Scope

Maintenance and new features for a web product configurator, where a manufacturer's electromechanical devices were assembled and customized piece by piece. New devices were added as configurable elements.

What I did

Improved API performance, optimized SQL and NoSQL queries, and met a 100% coverage standard across the whole system.

• .NET Core
• Angular
• SQL
• Azure
• Azure DevOps
• xUnit
• REST
• Jira

Sep 2019 — Jan 2021 · USA

Full-Stack Developer · Team International

Vehicle Logistics · Mid-Senior · On-site: Charlotte, NC (1 month)

Scope

On-premise system coordinating truck traffic across the seaports of a US region. Each truck ran a seven-station cycle inside the port, and web services exchanged messages in both directions: every station reported the truck's status and received a response.

What I did

Migrated the web client from ASP.NET Web Forms to Angular, keeping the same SOAP contracts with the legacy system.

• .NET Core
• Angular
• ASP.NET Web Forms
• SQL
• Azure
• SOAP
• REST
• Software Architecture Design

Jun 2019 — Aug 2019 · Colombia

Technical Consultant · Full-Stack Developer · Constructora Legado

Construction · Senior · Team led: 3 people

Scope

End-to-end technical consulting for the design and implementation of an ERP, covering project and schedule management, cost control and budgeting, procurement and supplier management, contract and subcontractor management, and materials and inventory management.

Key Achievements

Delivered a document management web application designed end to end, and reviewed unit tests and code across the team.

• .NET Core
• Angular
• SQL
• MongoDB
• Azure
• Jenkins
• xUnit

Jan 2017 — May 2019 · Colombia

Full-Stack Developer · Heinsohn Business Technology

Logistics, SAP · Senior · On-site: Tempe, AZ (6 months)

Scope

Browser access to SAP Business One for Colombian clients, and a machine learning system that read 25 invoice formats.

What I did

Recreated the SAP Business One interface in Angular, and built an OCR system that read scanned invoices and learned from corrections.

• C#
• .NET Core
• Python
• SAP Business One
• SAP HANA
• Angular
• Amazon SageMaker
• spaCy
• Tesseract
• OCR
• scikit-learn
• XGBoost

Aug 2013 — May 2016 · Colombia

Full-Stack Developer · Heinsohn Business Technology

Logistics · Mid-Level

Scope

Business intelligence for DHL's global air logistics operation, and document management for its billing operation.

What I did

Built the ETL processes, modeled the data warehouse and its OLAP cubes, and designed the dashboards and reports on top.

• C#
• SQL Server
• SSIS
• SSAS
• SSRS
• SSDT
• Dimensional Modeling
• OLAP
• TIBCO Spotfire
• ASP.NET Web Forms
• AngularJS
• SOAP

Mar 2013 — May 2013 · Colombia

Full-Stack Developer · Vidycom

IoT · Junior

Scope

Maintenance and deployment of an ASP.NET Web Forms application (.aspx) connected over serial and USB to a network of parking devices, with a back end and a user interface to operate it.

What I did

Fixed defects in the Web Forms interface and corrected the SQL Server data model.

• ASP.NET Web Forms
• .NET Framework
• SQL Server
• Oracle Database

Aug 2011 — Feb 2013 · Colombia

Full-Stack Developer · Celbit

Biomedical · Junior

Scope

Medical wearable hardware that needed software to read and operate it.

What I did

Wrote the C++ firmware for the microcontrollers that acquired the sensor signals, and built the applications that operated the devices.

• C++
• Texas Instruments MSP
• Windows Forms
• ASP.NET Web Forms
• PHP
• PostgreSQL
• MySQL

Jul 2010 — Nov 2011 · Colombia

Information Technology Teacher · Unitecnica

Education

Scope

IT training at a technical education institute.

What I did

Taught object-oriented programming fundamentals and basic data analysis.

• C#
• .NET Framework
• Visual Studio
• SQL

Feb 2025 — Present · Uruguay

Full-Stack Developer · Alabama Solutions

Banking · Mid-Senior

Scope

• Banking product development
• Migration of banking data
• Migration of ASP.NET Web Forms to Angular
• New SQL Server Data Model

What I did

• Adopted AI coding assistants, cutting development time on existing features by 25% and on new features by 10% - measured sprint by sprint against hand-written code
• Cut the time spent refactoring existing features by 25%
• Improved and refactored error handling
• Fixed unnoticed timeouts on external service calls
• Fixed race conditions in the user interface to coordinate asynchronous processes
• Moved the audit log to its own database to speed up the system
• Secured the audit log entries with hash chaining and digital signatures
• Made the audit log queryable by outside consultants, without going through the development team

• .NET Core
• Angular
• ReactJS
• JavaScript
• TypeScript
• Python
• SQL
• Azure
• Azure SQL Database
• Docker
• Postman
• Git
• Gitflow
• GitHub
• Jenkins
• SonarQube
• xUnit
• Generative AI
• Ollama
• Cursor
• Claude Code
• Codex
• CQRS
• REST
• JSON
• YAML
• SOAP
• Agile
• Scrum
• Kanban

Aug 2024 — Feb 2025 · Colombia

Full-Stack Developer · Constructora Legado

Construction · Senior · Team led: 5 people

Scope

End-to-end design, consulting and technical follow-up for an IoT platform that collected data from smart helmets and on-site sensors to monitor workforce location, activity, and safety, supporting operational decision-making on construction sites.

Key Achievements

• Set the data governance and architecture for wearable device readings
• Built a modular monolith with some microservices and serverless functions, communicating over REST, with event sourcing on the device readings
• Built the APIs with test-driven development
• Launched a public website for the company and its services
• Delivered a minimum viable product used to present the project to investors

• .NET Core
• ReactJS
• JavaScript
• TypeScript
• Python
• SQL
• Snowflake
• MongoDB
• Elasticsearch
• Azure
• Azure SQL Database
• Docker
• Postman
• AWS
• DynamoDB
• Azure Data Factory
• Databricks
• Power BI
• Git
• Gitflow
• GitHub
• Jenkins
• xUnit
• Software Architecture Design
• Data Architecture
• Data Analysis
• TDD
• Microservices
• Serverless
• REST
• JSON
• YAML
• SOAP
• Event Sourcing
• Generative AI
• Ollama
• Agile
• Scrum
• Kanban
• English

Jul 2022 — Jun 2024 · England

Full-Stack Developer, Data Analyst · Endava

Insurance, Payments, Banking · Senior

Project · Data Migration

Migration of banking data from eight Oracle and SQL Server sources into a new Snowflake model. ELT with Azure Data Factory into a raw SQL Server layer, then Azure Databricks for the transformations.

What I did

• Built Azure Functions that unified ingestion from Amazon S3, Azure Blob Storage and on-premise directories, writing the same validation traces the rest of the pipeline relied on
• Implemented checks that compared the loaded data against the original sources in Data Factory, not only against the previous step
• Designed validations that ran after each transformation in Databricks, because a step can produce the right table structure with the wrong values
• Wrote format validations in the Data Factory cleansing stage and in several of the Databricks transformations, with Spark SQL and Python

Result

Migration delivered in 10 months.

Project · Anti-Fraud Module

In-house product for online payments. Fraud detection started as a rules engine, too rigid to catch the patterns, so an AI model was added to score transactions using signals such as geolocation and regional fraud statistics. Microservices with CQRS and event sourcing, with an audit log that traced each transaction end to end so a confirmed fraud could be reversed.

What I did

• Built rules for the anti-fraud engine, from a functional specification written by banking security experts
• Designed parts of the architecture that made the AI model and the rules engine share the same decision flow
• Wrote unit tests for the model integration
• Wrote load and stress tests with JMeter inside Jenkins and TeamCity, finding the breaking point that the infrastructure team used to plan load balancing and capacity

Result

Module delivered in 8 months.

• .NET Core
• Angular
• ReactJS
• JavaScript
• TypeScript
• Python
• Spark SQL
• SQL Server
• Snowflake
• Cosmos DB
• MongoDB
• Elasticsearch
• Redis
• Azure
• Azure SQL Database
• Docker
• Postman
• AWS
• Azure Functions
• Azure Data Factory
• Amazon S3
• Databricks
• Power BI
• Ollama
• Apache Kafka
• RabbitMQ
• Azure Service Bus
• CQRS
• Git
• Gitflow
• GitHub
• Jenkins
• TeamCity
• SonarQube
• xUnit
• Apache JMeter
• REST
• JSON
• YAML
• SOAP
• Jira
• Agile
• Scrum
• Kanban
• English

Apr 2022 — May 2022 · Panama

Tech Lead · Scrum Master · KIRU

Online Payments · Team led: 4 people

Scope

End-to-end design, consulting, and technical leadership for an online payment platform that enabled employees to pay subscription and recurring bills through payroll deductions, helping improve on-time payments while offering employees discounted payment benefits.

Key Achievements

• Led API development and improved the performance of the existing APIs, organized in sprints that gave the client a delivery schedule
• Contributed to a proof of concept covering the architecture of the whole system
• Ran Scrum ceremonies, gathering requirements with the business and turning them into backlog stories the team could pick up
• Reviewed code and mentored the team on how to decide what to cover with unit tests

• .NET Core
• ReactJS
• JavaScript
• TypeScript
• Python
• SQL
• Snowflake
• Elasticsearch
• Azure
• Azure SQL Database
• Docker
• Postman
• AWS
• Power BI
• Git
• Gitflow
• GitHub
• xUnit
• REST
• JSON
• YAML
• SOAP
• Agile
• Scrum
• Kanban
• English

Aug 2021 — Apr 2022 · USA

Full-Stack Developer · Arroyo Consulting

Insurance · Senior

Scope

New features and support for an insurance ERP built around risk calculation, with around 50,000 users.

What I did

• Built proofs of concept that informed the architecture decisions
• Wrote unit tests to meet a 90% code coverage standard that applied to the whole system
• Wrote and refined user stories with the business

• .NET Core
• Angular
• ReactJS
• JavaScript
• TypeScript
• SQL
• Elasticsearch
• Azure
• Azure SQL Database
• Docker
• Postman
• Git
• Gitflow
• GitLab
• SonarQube
• xUnit
• REST
• JSON
• YAML
• GraphQL
• SOAP
• Agile
• Scrum
• Kanban
• English

Feb 2021 — Jul 2021 · USA

Full-Stack Developer · MAS Global Consulting

Mechanical Engineering · Mid-Senior

Scope

Maintenance and new features for a web product configurator, where a manufacturer's electromechanical devices were assembled and customized piece by piece. New devices were added as configurable elements.

What I did

• Optimized SQL and NoSQL queries
• Refined backlog stories
• Improved API performance
• Wrote unit tests to meet a 100% code coverage standard that applied to the whole system

• .NET Core
• Angular
• ReactJS
• JavaScript
• TypeScript
• SQL
• Azure
• Azure SQL Database
• Docker
• Postman
• Azure DevOps
• Power BI
• Git
• Gitflow
• GitHub
• xUnit
• REST
• JSON
• YAML
• SOAP
• Jira
• Agile
• Scrum
• Kanban
• English

Sep 2019 — Jan 2021 · USA

Full-Stack Developer · Team International

Vehicle Logistics · Mid-Senior · On-site: Charlotte, North Carolina (1 month)

Scope

On-premise system coordinating truck traffic across the seaports of a US region. Each truck ran a seven-station cycle inside the port, and web services exchanged messages in both directions: every station reported the truck's status and received a response.

What I did

• Migrated the web client from ASP.NET Web Forms to Angular, changing the architecture pattern but keeping the same SOAP contracts with the legacy system, so they stayed isolated and ready for a later migration
• Supported the system in production, including a period of work on hotfixes

• .NET Core
• Angular
• ReactJS
• JavaScript
• TypeScript
• SQL
• Azure
• Azure SQL Database
• Docker
• Postman
• Azure DevOps
• Git
• Gitflow
• xUnit
• Software Architecture Design
• REST
• JSON
• YAML
• SOAP
• Agile
• Scrum
• Kanban
• English

Jun 2019 — Aug 2019 · Colombia

Technical Consultant · Full-Stack Developer · Constructora Legado

Construction · Senior · Team led: 3 people

Scope

End-to-end technical consulting for the design and implementation of an ERP, covering project and schedule management, cost control and budgeting, procurement and supplier management, contract and subcontractor management, and materials and inventory management.

Key Achievements

• Delivered a web application for document management, designed end to end
• Wrote user stories and took part in planning sessions
• Reviewed unit tests and code across the team
• Optimized SQL and NoSQL queries

• .NET Core
• Angular
• ReactJS
• JavaScript
• TypeScript
• SQL
• MongoDB
• Azure
• Azure SQL Database
• Docker
• Postman
• Power BI
• Git
• GitHub
• Jenkins
• xUnit
• Agile
• JSON
• YAML
• Scrum
• Kanban
• English

Jan 2017 — May 2019 · Colombia

Full-Stack Developer · Heinsohn Business Technology

Logistics, SAP · Senior · On-site: Tempe, Arizona (6 months)

Project · SAP Business One Customizations

Web platform for SAP Business One, an on-premise desktop ERP, giving Colombian clients in healthcare, transport and hardware retail browser access to their own installation, on the SGI Solutions module framework.

What I did

• Built customizations in C# and .NET on the SGI Solutions framework for SAP Business One
• Recreated the SAP Business One interface as an Angular web application, with the ERP still hosted on the client's own servers
• Built proofs of concept for a centralized, multi-tenant SAP Business One, where clients would sign in with their own credentials and host no infrastructure; the model was not adopted

Project · Invoice Data Extraction

Machine learning system for a logistics client, trained on 25 invoice formats to read new incoming ones automatically, replacing manual mapping.

What I did

• Ran proofs of concept with Amazon SageMaker and spaCy to understand what machine learning could do
• Built a system that read scanned invoices with OCR and identified the values automatically
• Prepared the extracted data for the client's Certified Public Accountants (CPAs) to review before their IRS filings
• Built a web application where reviewers corrected what the system had read, feeding every correction back as new training data

• C#
• .NET Core
• Python
• SAP Business One
• SAP HANA
• SGI Solutions
• Angular
• JavaScript
• TypeScript
• AngularJS
• ASP.NET MVC
• SQL
• SQL Server
• MongoDB
• Azure
• Azure SQL Database
• Docker
• Postman
• Power BI
• Git
• GitHub
• Jenkins
• xUnit
• Agile
• JSON
• YAML
• Scrum
• Kanban
• Amazon SageMaker
• spaCy
• Tesseract
• OCR
• pandas
• scikit-learn
• XGBoost
• doccano
• English

Aug 2013 — May 2016 · Colombia

Full-Stack Developer · Heinsohn Business Technology

Logistics · Mid-Level

Project · Business Intelligence

Business intelligence and data integration for DHL's global air logistics operation, covering airports and aircraft.

What I did

• Built ETL and ELT processes with SQL Server Integration Services, developed in SQL Server Data Tools
• Modeled fact and dimension tables for the data warehouse, and built OLAP cubes in SQL Server Analysis Services
• Designed dashboards in TIBCO Spotfire and reports in SQL Server Reporting Services
• Optimized SQL Server queries feeding dashboards and reports

Project · Document Management

Document management for DHL's billing operation, consolidating documents that arrived from many different sources so any department could find them in one place.

What I did

• Built document management applications in ASP.NET - Web Forms and MVC - with SOAP web services, Windows services and SMS notifications
• Migrated screens from Web Forms to AngularJS, and later to an Angular 2 release candidate

• SQL Server
• SQL
• SSIS
• SSAS
• SSRS
• SSDT
• TIBCO Spotfire
• Visual Studio
• Dimensional Modeling
• OLAP
• ASP.NET Web Forms
• ASP.NET MVC
• AngularJS
• JavaScript
• C#
• SOAP
• JSON
• Windows Services
• English

Mar 2013 — May 2013 · Colombia

Full-Stack Developer · Vidycom

IoT · Junior

Scope

Maintenance and deployment of an ASP.NET Web Forms application (.aspx) connected over serial and USB to a network of parking devices, with a back end and a user interface to operate it.

What I did

• Fixed defects in the Web Forms interface
• Applied corrections to the SQL Server data model

• ASP.NET Web Forms
• .NET Framework
• Visual Basic
• SQL Server
• SQL
• Oracle Database
• PostgreSQL

Aug 2011 — Feb 2013 · Colombia

Full-Stack Developer · Celbit

Biomedical · Junior

Scope

Medical wearable hardware that needed software to read and operate it.

What I did

• Wrote C++ firmware for Texas Instruments MSP microcontrollers, cross-compiled and flashed over USB, to acquire motion and body-sensing signals from the devices
• Built desktop applications in Windows Forms and web applications in ASP.NET Web Forms and PHP that connected to the device modules

• C++
• Texas Instruments MSP
• Windows Forms
• ASP.NET Web Forms
• PHP
• Apache HTTP Server
• WebSockets
• PostgreSQL
• MySQL
• English

Jul 2010 — Nov 2011 · Colombia

Information Technology Teacher · Unitecnica

Education

Scope

IT training at a technical education institute.

What I did

• Taught object-oriented programming fundamentals and basic data analysis with Excel

• C#
• .NET Framework
• Visual Studio
• SQL
• Microsoft Excel