Senior Full-Stack/Backend Engineer (Python & JavaScript)

**This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior Full\-Stack/Backend Engineer (Python \& JavaScript) in Brazil.** We are seeking a highly skilled Senior Full\-Stack/Backend Engineer to design, build, and maintain scalable systems across multiple internal projects. In this role, you will work on both frontend and backend responsibilities, creating robust APIs, responsive UIs, and seamless integrations with third\-party systems. You will contribute to the full product lifecycle, from MVP development to production release, collaborating closely with cross\-functional teams. This position is ideal for engineers who enjoy solving complex problems, optimizing workflows, and working in a dynamic, fast\-paced environment. Your work will directly impact the delivery of innovative technology solutions for clients globally. **Accountabilities** * Lead the full product lifecycle from MVP through scalable production release. * Build responsive frontend components using modern frameworks such as React or Vue. * Develop backend APIs and manage databases for scalability and maintainability. * Integrate third\-party APIs and ensure smooth data flow across systems. * Collaborate with cross\-functional teams to translate business requirements into technical solutions. * Contribute to data analysis and pipeline development where applicable. * Maintain clean architecture and design patterns, focusing on maintainability and scalability. **Requirements** * 3\+ years of professional experience with Python and JavaScript ( Node.js , frontend frameworks). * Solid understanding of frontend development and frameworks (React, Vue, or similar). * Proven expertise in backend development, API design, and database management (PostgreSQL, MongoDB, Redis). * Experience with cloud services (AWS, S3\) and modern development tools (Git, REST, GraphQL). * Knowledge of data/web scraping, MarTech, or SalesTech is highly desirable. * Strong problem\-solving skills and a self\-motivated, organized approach to complex challenges. * Fluent in Ukrainian and/or Russian; English (upper\-intermediate or higher) is a plus. * Experience with AI\-assisted coding tools (Copilot, Cursor) is a plus. **Benefits** * Competitive compensation in USD. * Opportunity to work on innovative, transformative projects. * Professional development and skill growth. * Remote\-first role with collaborative, friendly, fast\-growing team. * Reduced Fridays during the summer for work\-life balance. **Why Apply Through Jobgether?** We use an **AI\-powered matching process** to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top\-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team. We appreciate your interest and wish you the best! Why Apply Through Jobgether? **Data Privacy Notice:** By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre\-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.