Hi, my name is

Carlos Wosiak

Carlos Wosiak at Machu Picchu

Hi! I am Carlos, a Software Engineer. I develop scalable and cost-efficient applications using C#, .NET, AWS, Azure, Angular, Node.js, and SQL Server, following the best practices for security and performance.

I have a bachelor's degree in Software Engineering, AWS certifications, domain expertise in the FIX Protocol and financial trading exchanges. I am passionate about learning new technologies and sharing knowledge with others.

I have given training courses and presented at conferences on various topics related to software development.

Check out my course!

01. Where I’ve Worked

2025 - present

Senior Software Engineer @ Sunshift / CAA AMA - Alberta Motor Association

  • Consulting for CAA AMA - Alberta Motor Association.
  • Working on membership modernization initiatives, developing serverless systems primarily using Node.js Lambdas orchestrated with AWS Step Functions.
  • Building and maintaining data processing solutions, including file-based workflows and internal transaction systems between memberships.
  • Developing and enhancing an email delivery service designed for event-driven architectures, enabling integration and use across multiple teams.
  • Building the backend for frontend (BFF) behind the CAA mobile app, which serves over 100,000 users.
  • Creating operational dashboards with Azure Workbooks.
  • Contributing to scalable, cloud-native architectures that align with modernization and automation goals within the organization.
  • Node.js
  • AWS
  • Azure
  • Angular
  • Docker

2024 - 2025

Senior Software Engineer @ ConectCar

  • Company in the vehicle toll-tag industry. Focus on developing robust, scalable solutions using .NET Core, with a strong emphasis on chatbot integration and advanced cloud infrastructure.
  • Developed a .NET application to manage email and WhatsApp preferences, updating configurations dynamically in SQL Server.
  • Implemented a system to process client communication data from channels such as WhatsApp, Facebook, Instagram, and web widgets, defining message routing destinations.
  • Resolved flow issues in the chatbot built with Botpress, improving functionality and user experience.
  • Designed and implemented scalable .NET Core solutions tailored to ConectCar’s operational needs, integrating chatbot systems with cloud-based infrastructure for enhanced performance and reliability.
  • C#
  • Azure
  • BotPress
  • Angular
  • .NET
  • Docker

2021 - 2024

Software Engineer @ Itaú Unibanco

  • Develop highly scalable AWS Lambda functions using Python and .NET, efficiently processing millions of trading operations daily, resulting in a significant increase in productivity and cost savings for the organization.
  • Play a key role in the successful migration of the company’s infrastructure to the AWS cloud.
  • Build and ship systems using mostly AWS services, such as DynamoDB, RDS, Lambdas, Step Functions, CloudWatch, S3, SNS, SQS and EC2 instances.
  • Recognized as a top talent within the organization, receiving 100% monthly salary bonus as a recognition for the results presented.
  • Deliver high-quality, robust production code for a diverse array of projects, including trading sessions with Bloomberg, CitiBank, JPMorgan and Credit Suisse.
  • Implement data analytics using AWS tools (Kinesis, Glue, Firehose) to extract insights, enhancing decision-making within the corporate treasury.
  • Automated 80% of trade processing operations, handling millions of transactions, resulting in increased efficiency and significant cost savings.
  • C#
  • AWS
  • Python
  • Angular
  • .NET
  • Docker
  • Kafka

2020 - 2021

Software Engineer @ Kolina Labs

  • Developed dockerized applications in Node.js, Laravel, Vue, Python and Svelte.
  • Maintained a reliable platform with millions of dollars transacted monthly.
  • Gave training courses and shared knowledge with the team, increasing the tech stack used across our projects.
  • Collaborated with other engineers to create a very complex system to calculate required equipment in the photovoltaic industry.
  • Vue
  • Node.js
  • Quasar
  • Angular
  • PHP
  • Laravel

2020 - 2020

Self-employed

  • Built and shipped a platform to subscribe to a monthly healthy food basket delivery service, using Angular, Ruby on Rails, PostgreSQL, and stripe for payment on a Digital Ocean infrastructure.
  • Architected and implemented a system to register and hire academic text reviewers, using React, Ruby on Rails and PostgreSQL
  • Created a React Component to process X-Ray for a clinical diagnostics company.
  • Improved an item selection page for a food delivery company.
  • Ruby on Rails
  • React
  • Angular
  • PostgreSQL

2015 - 2020

Web Developer @ Almix Internet

  • Developed the company website and internal systems on Angular, PHP and MySQL.
  • Using Agile methods migrated all printed tickets to digital, highly increasing productivity and reducing paper waste.
  • Created the advertisement design and marketing of the company using Adobe Illustrator and Photoshop.
  • PHP
  • Angular
  • MySQL

02. Some Certifications I’ve Got

03. Some Projects I’ve Delivered

Screenshot of Ideal Reviewer

Featured Project

Ideal Reviewer

A platform where undergraduate, master's, and doctoral students can hire reviewers to evaluate their thesis, dissertation, or academic work. The system serves as a bridge, allowing reviewers to register and offer their services to students seeking expert feedback and guidance on their scholarly writings.

  • Figma
  • Ruby On Rails
  • React
  • PostgreSQL
  • Docker
Screenshot of Compre do Campo

Featured Project

Compre do Campo

Subscription service to get rural products directly from farmers, allowing subscribers to choose a plan to receive a basket of fruits and vegetables weekly for a fixed price. By connecting consumers directly with local farmers, its aim is to provide fresh and high-quality produce while maintaining an attractive price.

  • Ruby On Rails
  • Angular
  • PostgreSQL
  • Docker

04. My Degrees

Pontifícia Universidade Católica - PUC logo

Post Graduate Degree in Software Engineering

Pontifícia Universidade Católica - PUC

Ranked amongst the top universities in Brazil and the World by The Times Higher Education Ranking.

UniGuairacá Centro Universitário logo

B.Sc. in Software Engineering

UniGuairacá Centro Universitário

UniGuairacá Centro Universitário logo

B.Sc. IT in Software Analysis and Development

UniGuairacá Centro Universitário

Get In Touch

Do you have an interesting project and want someone to help you with it? My inbox is always open!

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