Backend Java Developer, Mid-Level

Starian

. Contribute to robust, sustainable, and results-oriented solutions .

Posted 10/7/2026full-timeRemote • BrazilMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Java 11+, Spring Framework, and AI development tools while applying SOLID principles and Clean Code practices. Capable of mentoring junior developers and contributing to a quality-focused software engineering environment.

Highest-signal resume keywords

Java 11+Spring FrameworkAI Development ToolsSOLID PrinciplesUnit Testing

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaSpringJUnitMockitoPostgreSQLTDDClean CodeDesign PatternsClean ArchitectureHexagonal Architecture

Soft Skills

MentoringCollaborationCuriosity

Tools & Technologies

WindsurfGitHub CopilotJetBrains AIAnthropicChatGPTGitHibernateWildFly

Industry Keywords

SaaS SolutionsConstructionLegal IntelligenceOperational EfficiencyGovernanceCompliance

Tech Stack

Tools & technologies

HibernateJavaJUnitMockitoPostgresReactSpring

About the role

Key responsibilities & impact

Contribute to robust, sustainable, and results-oriented solutions
Work with technical autonomy
Collaborate in planning activities
Mentor junior developers
Help build a software engineering environment focused on quality, performance, and continuous improvement
Use AI tools such as Windsurf, Copilot, JetBrains AI, and Anthropic to accelerate development and test automation
Work with a technology stack comprising Java, Spring, React, JUnit, Mockito, Git, Hibernate, and other technologies
Apply a digital mindset, curiosity about emerging technologies, and an interest in understanding how Artificial Intelligence can transform processes, experiences, and results
Work on the Sienge product at a company that develops and integrates SaaS solutions for the construction, legal intelligence, operational efficiency, and governance and compliance markets

Requirements

What you’ll need

Experience with Java 11+ and the Spring Framework
Experience applying SOLID principles and strong knowledge of Design Patterns
Practical knowledge of Clean Code and Clean Architecture/Hexagonal Architecture
Solid experience with unit testing
Knowledge of TDD (Test-Driven Development)
Experience with relational databases such as PostgreSQL
Experience with Java application servers, especially WildFly
Experience using AI development tools such as GitHub Copilot, Windsurf, JetBrains AI, Anthropic, and ChatGPT
Knowledge of or interest in Artificial Intelligence technologies, including tools, applications, and concepts

Benefits

Comp & perks

Meal or food allowance
Health and dental insurance
Home office allowance
Profit Sharing and Results Program
Setup Kit voucher
Life insurance
Birthday day off
GoGood | Conexa
Health and wellness promotion program
Partnerships and discounts
Company committed to diversity and inclusion