Java Developer – Mid-Level

AM53 Smart Solutions

. Develop and maintain backend APIs and services using Java and Spring Boot .

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

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing and maintaining backend APIs and services using Java and Spring Boot, with a strong focus on scalable and secure solutions. Proficient in collaborating with cross-functional teams and promoting best practices in code quality and documentation.

Highest-signal resume keywords

Java (Versions 11, 17, 21)Spring BootRESTful APIsSOAP Web ServicesAWS Services (EC2, S3, RDS)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Java (Versions 11, 17, 21)Spring BootRESTful APIsSOAP Web ServicesRelational Databases (SQL Server, PostgreSQL)GitContinuous Integration (CI/CD)System ModernizationAI-Powered Development ToolsClean Code Practices

Soft Skills

CollaborationCode ReviewTechnical Definition Participation

Tools & Technologies

AWS Services (EC2, S3, RDS)GitHub CopilotDevinClaude CodeCursor

Industry Keywords

Banking Sector

Tech Stack

Tools & technologies

AWSEC2JavaPostgresSOAPSpringSpring BootSpringBootSQL

About the role

Key responsibilities & impact

Develop and maintain backend APIs and services using Java and Spring Boot
Design scalable, secure, and high-performance solutions
Participate in technical definitions and architectural decisions
Collaborate with cross-functional teams (Frontend, Product, QA, Architecture, and others)
Develop clean, testable, and well-documented code
Conduct code reviews and promote development best practices
Work on system modernization and integrations

Requirements

What you’ll need

Strong experience with Java (versions 11, 17, and/or 21)
Strong experience with Spring Boot
Experience with RESTful APIs
Experience with SOAP Web Services
Knowledge of relational databases (SQL Server, PostgreSQL, or similar)
Familiarity with Git and Continuous Integration (CI/CD) practices
Knowledge of AWS services (EC2, S3, RDS, and similar)
Experience using AI-powered development tools, such as GitHub Copilot, Devin, Claude Code, and Cursor
Preferred: experience with system modernization projects
Preferred: experience in the banking sector