# Guilherme Duart

Guilherme Duart is a remote worker on Himalayas, Analista Mainframe at GFT Technologies, based in Brazil.

Source: https://himalayas.app/@guilhermeduart

```text
Mainframe Analyst at GFT Technologies who contributed to Bradesco's alphanumeric CNPJ system updates.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | Brazil |
| Authorized to work in | Brazil |
| Salary expectations | 33k+ BRL |
| Job categories | Mainframe Developer |
| Skills | COBOL, JCL, DB2, CICS, SQL, NATURAL, VSAM, Mainframe Systems, Impact Analysis, Integration Testing, Web Testing, Functional Testing, Compatibility Testing, Performance Testing, Agile |

## About

```text
At GFT Technologies, I participated in the Bradesco project to update systems for the alphanumeric CNPJ, including COBOL impact analysis, program changes, JCL adjustments, and integration validation.

At Santander, I developed and maintained systems involving credit and debit notes, limits, registrations, and credentials, using COBOL, CICS, SQL, JCL, NATURAL, and DB2.

At Banco do Brasil, I worked on the cards and authorizer team, supporting online programs and specific requests. I also developed and tested software against client requirements and addressed system compatibility and performance issues.
```

## Experience

### Analista Mainframe

[GFT Technologies](https://himalayas.app/companies/gft). Aug 2025 - May 2026

```text
Participated in a project for Bradesco to update systems for alphanumeric CNPJ using AI, involving COBOL impact analysis, program changes, JCL adjustments, and validation of system integrations.
```

Skills: COBOL, SQL, JCL, CICS, Hexavision, Jira

### Analista Desenvolvedor l

[Santander](https://himalayas.app/companies/santander). Feb 2023 - Jun 2024

```text
Worked with credit and debit notes, limits, registrations, and credentials. Developed and maintained systems in COBOL, CICS, SQL, JCL, NATURAL, and DB2, and participated in agile squads focused on web application testing.
```

Skills: COBOL, CICS, SQL, JCL, NATURAL, DB2, KDZ, SISBB, TSO, Roscoe, Agile, Scrum

### Analista Desenvolvedor l

Banco do Brasil. Jan 2021 - Feb 2023

```text
Worked in the cards and authorizer team (SDV), focusing on online programs and specific demands. Developed and tested software according to client requirements, ensuring efficiency and quality, and resolved system compatibility and performance issues.
```

Skills: COBOL, CICS, SQL, JCL, NATURAL, DB2, Software-Testing, Problem-Solving

## Education

### Estácio

Análise e Desenvolvimento de Sistemas, Análise e Desenvolvimento de Sistemas. 2025 - Present

```text
Pursuing a degree in Análise e Desenvolvimento de Sistemas, ongoing since August 2025.
```

## Tech stack

- Node.js
- Jira
- JavaScript
- Microsoft Excel
- SQL
- Microsoft Word

To contact Guilherme, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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