.NET Developer – Senior

Domo Inovação

Senior .NET Developer at Banco Mercantil, driving innovation through technology. Involves extensive software development and problem-solving across diverse systems.

Posted 6/25/2026full-timeRemote • 🇧🇷 BrazilSeniorWebsite

Tech Stack

Tools & technologies

ASP.NET.NET

About the role

Key responsibilities & impact

Elicit business requirements from requesting areas to understand and map needs;
Perform analysis and development activities by specifying and coding programs according to models defined together with the systems architecture team, in both projects and system maintenance;
Execute unit and integration tests of programs and systems, including test scripts and preparation of test data, to verify operational behavior and compliance with user requests;
Validate system processes with users, providing technical support and guiding them in operation and acceptance testing;
Support the deployment process, assisting the operations team and monitoring outcomes to ensure proper functioning;
Identify potential infrastructure, performance, or system failure points and propose solutions/improvements to eliminate issues in the short, medium, and long term;
Monitor quality and performance indicators of systems, services, and components, aiming for continuous improvement of service quality.

Requirements

What you’ll need

Bachelor's degree in Computer Science, Information Systems, Computer Engineering, or related fields;
Strong experience with .NET Core, .NET Framework, C#, and ASP.NET Web API;
Advanced experience in REST API design and data persistence;
Hands-on experience with messaging/queues and DevOps/containers environments;
Experience with software architecture and engineering;
Knowledge of agile methodologies.
Candidates will stand out if they have:
Experience working with financial systems;
Experience in integrating and modernizing legacy systems and microservices.

Benefits

Comp & perks

Health insurance and dental plan
Wellhub (Gympass)
Transportation allowance
Meal and food allowance
Domo School (learning platform) and partnerships with educational institutions
Private pension plan
Life insurance
Day off
Extended maternity and paternity leave.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

.NET Core.NET FrameworkC#ASP.NET Web APIREST API designdata persistencemessaging/queuesDevOpscontainerssoftware architecture

Soft Skills

business requirements elicitationtechnical supportguidance in operationmonitoring outcomesproblem-solvingcontinuous improvement

Certifications

Bachelor's degree in Computer ScienceBachelor's degree in Information SystemsBachelor's degree in Computer Engineering