FullStack Developer Mid-level

Starian

FullStack Developer at a SaaS company transforming challenges into real solutions in construction and legal sectors. Collaborating with teams using AI tools for enhanced development.

Posted 5/19/2026full-timeRemote • BrasilMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

JavaScriptJestReactTypeScript

About the role

Key responsibilities & impact

Contribute to robust, sustainable, and results-oriented solutions;
Act with technical autonomy, collaborating in planning and mentoring more junior developers;
Participate in building a software engineering environment driven by quality, performance, user experience, and continuous improvement;
Use AI tools (such as Windsurf, Copilot, JetBrains AI, Anthropic) to accelerate development and test automation;
Technologies in our stack include: React, JavaScript, TypeScript, CSS, Git, and other frontend ecosystem tools;
Collaborate in evolving reusable components, interface patterns, and frontend development best practices;
Digital mindset, curiosity about new technologies, and interest in understanding how Artificial Intelligence can transform processes, experiences, and outcomes.

Requirements

What you’ll need

Strong experience with React.js, including hooks, Context API, componentization, state management, and integration with REST APIs;
Proficiency in JavaScript, HTML, and CSS (knowledge of TypeScript is a plus);
Knowledge of Design Systems and user experience (UX), focusing on consistency, maintainability, and scalability; (experience with Storybook and Material-UI is a plus);
Experience with automated testing (unit and integration) using Jest and React Testing Library;
Experience using AI tools in development such as GitHub Copilot, Windsurf, JetBrains AI, Anthropic, ChatGPT, among others;
Knowledge or interest in Artificial Intelligence technologies: tools, applications, and concepts.

Benefits

Comp & perks

Meal allowance / food voucher;
Health and dental plan;
Work-from-home allowance;
Profit Sharing (PLR - Participation in Profits and Results);
Voucher for setup kit;
Life insurance;
Birthday day off;
GoGood | Conexa (employee assistance programs);
Health and well-being promotion program;
Partnerships and discounts.

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 & Tools

React.jsJavaScriptTypeScriptCSSHTMLautomated testingunit testingintegration testingcomponentizationstate management

Soft Skills

technical autonomycollaborationmentoringcuriositydigital mindsetfocus on qualityuser experiencecontinuous improvement