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

Overview INFUSE is looking for a startup-savvy Senior Full-Stack / Backend Engineer with a strong MVP mindset and proven experience building scalable, maintainable systems with extensive integration work. This is a project-based contract focused on delivering an internal product primarily backend-driven (80%) with some frontend responsibilities (20%). Our internal product will feature well-designed, robust APIs enabling seamless integration with other systems, built for scalability and ease of maintenance by future teams.

We are looking for candidates who can work well in a dynamic, fast-growing environment and contribute to end-to-end product development.

Key responsibilities - Develop backend APIs and databases that are scalable and maintainable.

• Integrate and manage third-party APIs for seamless data flow.
• Build frontend components delivering responsive UIs with modern frameworks.
• Analyze data and build efficient data pipelines (preferred but not mandatory).
• Drive the full product lifecycle from MVP through scalable production release.
• Collaborate closely with cross-functional teams to translate business needs into technical solutions.

Qualifications - Proven expertise in backend development, API design, and database management.

• Solid knowledge and hands-on experience with frontend technologies and frameworks (mid-level or higher).
• Experience with data analysis and pipeline construction is a plus.
• Skilled in modern development tools and AI-assisted coding (e.g., Cursor, Copilot).
• Prior experience in data/web scraping, MarTech, or SalesTech is highly desirable.
• Strong architectural mindset focused on scalability, maintainability, and clean integration points.
• Tech stack includes Python and JavaScript (Node.js and frontend frameworks), with everything hosted primarily on AWS.
• Language: Ukrainian/Russian required, fluent English (upper-intermediate or higher). Personal attributes - Self-motivated with strong organizational skills
• Problem-solver who thrives on complex challenges We offer - Opportunity to work on great innovative and transforming projects;
• Professional development;
• Competitive compensation in USD;
• Professional, friendly, fast-growing team;
• Reduced Fridays during summer.

Work schedule Monday to Friday from 1:00 PM to 9:30 PM/10:00 PM EEST (Kyiv Time), including a 30-minute/1-hour break INFUSE is committed to complying with applicable data privacy and security laws and regulations. For more information, please see our Privacy Policy.