Software Developer & Systems Analyst

Douglas Souza

Software developer and systems analyst with experience supporting, maintaining, and improving enterprise applications across multiple industries. Skilled in production systems, legacy modernization, cloud technologies, requirements gathering, backlog management, documentation, and full SDLC support. Experienced in .NET, SQL Server, PostgreSQL, VB.NET, React, AWS, and GraphQL.

Core Competencies

  • Requirements gathering and stakeholder communication
  • Agile delivery including Scrum and Kanban
  • Backlog and sprint management
  • Legacy system modernization
  • Production support and incident resolution
  • System documentation and process mapping
  • Cross-functional collaboration
  • Release planning and SDLC support

Professional Experience

June 2022 - Present

Senior Technology Lead / Technology Analyst

Infosys · Saskatoon, Saskatchewan

Nutrien Mining Operations

  • Led end-to-end development, support, and modernization of a mission-critical legacy application used across multiple mining sites.
  • Managed requirements, release planning, incident resolution, and stakeholder communication.
  • Modernized legacy systems including migration from OPC DA to OPC UA.
  • Served as system owner responsible for architecture decisions, roadmap planning, and long-term stability.
  • Established a predictable monthly release cycle, improving operational reliability.
  • Delivered a major upgrade from version 1.0 to version 2.0 at a site not updated in more than a decade.
  • Collaborated with infrastructure, networking, operations, automation, and security teams.
  • Managed Jira boards using Scrum and Kanban, and onboarded new team members.

Heineken B2B E-Commerce

  • Supported a large B2B e-commerce application for Latin America, managing roughly seventy ServiceNow tickets monthly.
  • Performed manual and regression testing, and reviewed pull requests to maintain code quality.
  • Created and deployed releases using Azure DevOps.
  • Configured production environments and validated APIs using SQL and Postman.

Vale Enterprise Web Application

  • Acted as primary business analyst for a .NET Core and React application.
  • Led weekly requirement-gathering sessions and stakeholder communication.
  • Owned backlog management, sprint planning, and Agile implementation.
  • Delivered new features and maintained the application, combining business analysis and development responsibilities.

February 2022 - May 2022

Full Stack Developer - BRF Project

Buhler Group · Curitiba, Brazil

  • Developed and deployed C# APIs for BRF plant operations.
  • Participated in plant design activities using internal software.
  • Installed and configured APIs directly in plant environments.
  • Collaborated with engineering and operational teams to validate requirements.

October 2019 - December 2021

SAP Business One Developer

Agrotis · Brazil

  • Developed and maintained a custom SAP Business One addon using C#.
  • Maintained SAP HANA calculation views, procedures, and reporting components.
  • Built SAP Business One screens using SAP Business One Studio.
  • Developed Crystal Reports for business users.

June 2018 - September 2019

Junior System Analyst

BRW Sports Group · Pinhais, Brazil

  • Developed internal C# APIs and SQL Server reports.
  • Assisted in SAP Business One development and data migration.
  • Created system manuals and documentation.
  • Provided continuous support to software users and resolved technical issues across systems, computers, networks, and printers.

March 2017 - June 2018

IT and Systems Intern

Bagozzi · Curitiba, Brazil

  • Provided IT and audiovisual support, and installed and maintained Windows, Linux, and Android systems.
  • Scheduled and prepared audiovisual rooms and equipment.
  • Assisted with CCTV monitoring, access control, biometric attendance, and mobile devices.

Technical Skills

Languages & Frameworks

  • C#
  • .NET Framework
  • .NET Core
  • .NET 8
  • VB.NET

Frontend

  • React

Databases

  • SQL Server
  • PostgreSQL

Cloud

  • AWS
  • S3
  • SQS
  • Lambda
  • CloudWatch

APIs

  • C# REST APIs
  • GraphQL

Enterprise Systems

  • SAP Business One
  • SAP HANA

Reporting

  • Crystal Reports

Tools

  • Azure DevOps
  • Jira
  • ServiceNow

Industrial Technologies

  • OPC DA
  • OPC UA
  • Scanners
  • Scales

Education

UNIFACEAR University Center

Diploma in Analysis and Systems Development, three-year program

2016 - 2022

Languages

English: Fluent

Portuguese: Fluent

Contact

Let's build something solid.

If your team needs strong backend ownership, reliable execution, and someone comfortable with complex environments, I would love to talk.