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AM53 Smart Solutions

Mid-Level .NET Developer

AM53 Smart Solutions

. Work on system modernization and integrations .

Posted 11/12/2026full-timeSão Paulo • BrazilMid-LevelSeniorWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in .NET Framework and C# for developing scalable and secure backend services, with a strong focus on API development and system modernization in the financial sector. Proficient in collaborating with multidisciplinary teams and employing CI/CD practices to enhance software delivery.

Highest-signal resume keywords
Solid Experience With .NET Framework/.NET And C#Experience With RESTful APIsKnowledge Of Relational DatabasesFamiliarity With Git And CI/CD PracticesExperience In The Financial And Banking Sectors

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills
.NET FrameworkC#RESTful APIsSOAP Web ServicesSQL ServerPostgreSQLJavaSpring BootAWSSystem Modernization
Soft Skills
CollaborationCode ReviewTechnical Definition
Tools & Technologies
GitContinuous IntegrationContinuous DeliveryGitHub CopilotDevinClaude CodeCursor
Industry Keywords
Financial SectorBanking Sector

Tech Stack

Tools & technologies
AWSJavaPostgresSOAPSpringSpring BootSpringBootSQL.NET

About the role

Key responsibilities & impact
  • Work on system modernization and integrations
  • Develop and enhance APIs and backend services
  • Develop applications and backend services using .NET and C#
  • Design scalable, secure, and high-performance solutions
  • Participate in technical definitions and architectural decisions
  • Collaborate with multidisciplinary teams (Frontend, Product, QA, Architecture, and others)
  • Write clean, testable, and well-documented code
  • Conduct code reviews

Requirements

What you’ll need
  • Solid experience with .NET Framework/.NET and C# (version 4.5 or later)
  • Knowledge of relational databases (SQL Server, PostgreSQL, or similar)
  • Experience with RESTful APIs
  • Experience with SOAP web services
  • Familiarity with Git and Continuous Integration/Continuous Delivery (CI/CD) practices
  • Experience using AI development tools such as GitHub Copilot, Devin, Claude Code, and Cursor
  • Previous experience working at Santander
  • Knowledge of or experience with Java (versions 11, 17, and/or 21)
  • Knowledge of Spring Boot
  • Knowledge of AWS environments
  • Experience with system modernization projects
  • Experience in the financial and banking sectors