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

INFUSE; Poland; Remote; PLN 218,000 - 365,000; Full time

Job summary

A tech-driven company is seeking a Senior Full-Stack Developer with a strong MVP mindset to work on innovative projects. This role requires experience in backend and frontend responsibilities, including building robust APIs and systems designed for scalability and maintainability. Strong knowledge of modern frameworks and tools is essential. The position offers competitive compensation and a flexible tech stack.

Benefits

Opportunity to work on innovative projects

Competitive compensation in USD

Professional, friendly, fast-growing team

Qualifications

• Solid knowledge and hands-on experience with frontend technologies and frameworks.
• Proven expertise in backend development, API design, and database management.
• Experience with data analysis and pipeline construction is a plus.
• Skilled in modern development tools and AI-assisted coding.

Responsibilities

• Drive the full product lifecycle from MVP through scalable production release.
• Build frontend components delivering responsive UIs.
• Develop backend APIs and databases that are scalable and maintainable.
• Integrate and manage third-party APIs for seamless data flow.
• Collaborate closely with cross-functional teams.

Skills

Frontend technologies

Backend development

API design

Database management

Data analysis

Problem-solving

Organizational skills

Language: Ukrainian/Russian

Fluent English

Tools

Python

Node.js

React

Vue

PostgreSQL

MongoDB

S3

Redis

REST

GraphQL

AWS

Git

Job description

Remote

Overview

INFUSE is committed to complying with applicable data privacy and security laws and regulations. For more information, please see our Privacy Policy. At INFUSE, innovation drives us. We unite forward-thinkers who anticipate how technology shapes business and deliver high-impact projects with real potential.

We are looking for a startup-savvy Senior Full-Stack with a strong MVP mindset and proven experience building scalable, maintainable systems with extensive integration work. You will be involved in multiple internal projects with both backend and frontend responsibilities. Our products will feature well-designed, robust APIs enabling seamless integration with other systems, built for scalability and ease of maintenance by future teams.

Key Responsibilities

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

Qualifications

• Solid knowledge and hands-on experience with frontend technologies and frameworks (mid-level or higher).
• Proven expertise in backend development, API design, and database management.
• 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.

Personal Attributes

• Self-motivated with strong organizational skills
• Problem-solver who thrives on complex challenges

Additional Information

• Contract duration aligns with project milestones and deliverables.
• Tech stack is flexible and to be defined; you should have experience with Python and Node.js, React and/or Vue; PostgreSQL and/or MongoDB, S3, Redis, REST or GraphQL, AWS, Git.
• Language: Ukrainian/Russian required, fluent English (upper-intermediate or higher) would be a plus.
• 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.

We offer

• Opportunity to work on great innovative and transforming projects;
• Competitive compensation in USD;
• Professional, friendly, fast-growing team;