Michel Lima

Senior Software Engineer - C# .NET Contractor

Db

Jun 2026 - Current (5 months)

On the IBS tax-collection program, I developed the reception module for bank agreement files: the layer that detects file arrival in storage, records receipt, checks integrity and duplicates, and forwards the file to sequencing and validation. The work covered event-driven architecture in .NET 9 on Azure (Functions, Blob, Kafka, SQL), OpenTelemetry observability, and automated testing through end-to-end scenarios. Keywords .NET 9
• C#
• Azure Functions
• Event Grid
• Blob Storage
• Apache Kafka
• SQL Server
• OpenTelemetry
• Event-driven architecture
• Idempotency
• Banking integration
• FEBRABAN
• Docker
• Automated testing

Senior Software Engineer C# .Net - Contractor

Db

Jan 2025 - Jun 2026 (1 year 6 months)

As a Senior Software Engineer at DBServer, I am allocated to Pagare, a Brazilian fintech specialized in Banking as a Service (BaaS), payments, and sub-acquiring. I contribute to the development and evolution of the platform that powers regulated products by the Central Bank of Brazil (BACEN), including PIX, credit/prepaid cards, FX, acquiring, and digital wallets. Key Responsibilities Design, develop, and maintain high-performance APIs in C# .NET for payment processing, settlement, and financial reconciliation. Implement complex integrations with acquirers and processors (SafraPay, Adiq, Núclea, RTM), ensuring compliance and reliability. Work on PIX solutions (direct, indirect, and automatic), handling scalability challenges for high-volume

Senior Software Engineer – C# .NET Contractor

Db

Jan 2025 - May 2025 (5 months)

Senior Software Engineer at Impinj (remote contractor) As a Senior Software Engineer contractor at Impinj, I work fully remotely as part of an experienced US-based team. My responsibilities include designing, developing, and maintaining backend systems and APIs that support the company’s RFID and IoT solutions. Key responsibilities: Collaborate with American engineers and product teams to deliver high-quality backend services using .NET and C#. Participate in the migration and modernization of legacy Ruby on Rails systems to .NET, improving reliability and performance. Write clean, maintainable, and well-tested code, following industry best practices and SOLID principles. Work with SQL Server and PostgreSQL for data storage and processing i

Senior Software Engineer - C#

Stone

May 2024 - Nov 2024 (7 months)

Responsible for developing and maintaining applications in the controllership sector, my work ensures seamless processing of millions of daily transactions for calculations, tax obligations, financial reporting, cash flow, and auditing. Leveraging technologies like C# dotnet, Microservices, REST APIs, and databases like SQL Server and PostgreSQL, I manage the entire lifecycle of high-performance applications, from requirement analysis to deployment. Skilled in cloud (Azure CI/CD), Git, Docker, Docker Compose, and Redis for caching, I also focus on delivering quality through unit, functional, and integration testing.

Senior Backend Software Engineer - Java, Kotlin

iFood

Nov 2021 - Nov 2022 (1 year 1 month)

Main activities: development, support and monitoring of critical applications in the most used food delivery app's backend in Latin America with more than 60 million orders per month. Main technologies: Java and Kotlin, Spring Boot, Redis as cache, AWS, Kubernetes, New Relic, Grafana, Main projects: Order Checkout Platform, new company's cart platform

Tech Manager - C#

Pagar.me

Dec 2018 - Nov 2021 (3 years)

Main activities: lead of the integration team at a payment gateway company, developing the detailed design structure after understanding the requirements of new features with diagrams and software documentation, making sure all the project and company guidelines and standards have been applied, removing blocks, and helping team's members, acting as scrum master, creating and manipulating backlogs and Jira's boards, helping team's members to improve their technical and soft skills by continuous feedbacks. Monitoring, improving, and maintaining the environments of our APIs using monitoring and logs modern systems. Main technologies: C# .Net core and full framework, PHP, Javascript, Azure DevOps, CircleCI, Docker and Docker Compose, Rancher, V

Software Engineer - PHP, JavaScript

Pagar.me

Jan 2017 - Dec 2018 (2 years)

Software engineer leader of Mundipagg's module team. Participating in the creation of the architecture of a new e-commerce payment module framework using best practices such as DDD, SOLID, functional and unit tests, continuous integration, continuous delivery, and more. Support and creation of new features for legacy systems. Other attributions: customer support, scrum management, and requirements gathering. Used technologies: Linux, PHP, Git, Github, Javascript, Mysql, Docker, and Docker compose, Rancher, DDD, SOLID, Behat + Selenium, PHP unity, Circle CI, Jira, Confluence, Composer, Scrum fw, knockout js, task automation with PHP Robo, Api's integration, REST and RESTFul concepts, PHP Slim framework, Postman, Newman.

L

PHP Developer

Lojas Americanas S.A.

Jun 2015 - Nov 2016 (1 year 6 months)

Main activities: PHP software developer of the intranet team, developing new integrations, features, integrations, and fixes for the company's intranet. Woking on projects that let the company saves some million dollars by finding gaps in the HR processes and automating bureaucratic tasks. Developing many complex reports and supporting the application's users Main technologies: PHP, Javascript, Mysql, Git Main projects: report systems, integration with Brazil's mail company, and VCS implementation

PHP Developer

SCE - Sistemas Computacionais e Engenharia Ltda

Oct 2013 - Jun 2015 (1 year 9 months)

Main activities: Lead PHP software developer of the web team, developing e-commerces for our customers. Also creating a full integration with the company's ERP system to keep the product's stocks, delivery, and orders updated. Main technologies: PHP, Javascript, Mysql, Opencart, Git Main projects: various new e-commerce websites, integration of the company's ERP with the e-commerce platforms.

M

Freelancer Web Developer

My own company (I am self-employed)

Sep 2012 - Oct 2013 (1 year 2 months)

Main activities: self-employed web developer, creating design, coding, and maintaining websites, applications, and marketing campaigns for small businesses. Main technologies: PHP, Javascript, Mysql, WordPress, Git, Photoshop, CSS, SEO, Google Ads

Jr software developer - PHP, C#, JavaScript

Affero

Feb 2011 - Sep 2012 (1 year 8 months)

Main activities: Jr software developer, at the first moment, working on the company's marketing team, developing new features and fixes for the company's website. Migrating for the e-learning platform team, I could help them to create responsive layouts for the course creator module, and work at the company's Facebook course marketplace app. Main technologies: PHP, C#, Javascript, CSS, Mysql, SQL Server, Joomla, WordPress, Git, Photoshop, SEO. Main projects: Facebook course marketplace app, the company's e-learning platform, the company's website, and market campaigns.

Support Analyst

Spassu

Nov 2009 - Mar 2011 (1 year 5 months)

Main activities: outsource software, hardware, and network level 2 helpdesk.

N

Support Analyst

Nova Prestech Informática

Jun 2007 - Nov 2009 (2 years 6 months)

Main activities: outsource hardware, software, and network helpdesk.

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Michel Lima

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