Senior Fullstack Developer (Node.js + React)

Trinetix

Poland Remote permanent

Posted: April 22, 2026

Job Description

We are seeking a passionate and skilled Full-Stack JavaScript Developer to join our team. The ideal candidate will have strong expertise in React, Node.js, PostgreSQL, and AWS to build scalable, efficient, and user-friendly applications.

Requirements

• 5 years of professional experience as a Full-Stack JavaScript Developer or similar role

• Strong proficiency in React and Node.js

• Hands-on experience with PostgreSQL or other relational databases

• Knowledge of AWS services (EC2, S3, Lambda, RDS, etc.)

• Understanding of RESTful APIs and web services

• Familiarity with version control systems like Git

• Good problem-solving skills and attention to detail

• Excellent communication skills and ability to work independently or in a team
• English - Upper Intermediate
• Ukrainian - conversational

Nice-to-haves

• Experience with TypeScript

• Knowledge of CI/CD pipelines

• Familiarity with Docker and containerization

• Previous experience working in agile development environments

Core Responsibilities

• Develop, test, and maintain new and existing web applications using React and Node.js

• Design and optimize database schemas using PostgreSQL

• Integrate front-end components with server-side logic and APIs

• Deploy, manage, and scale applications on AWS cloud infrastructure

• Collaborate with cross-functional teams to define technical specifications and deliver high-quality solutions

• Ensure code quality through testing and code reviews

• Stay updated with emerging technologies and industry best practices

What we offer

• Continuous learning and career growth opportunities

• Professional training and English/Spanish language classes

• Comprehensive medical insurance

• Mental health support

• Specialized benefits program with compensation for fitness activities, hobbies, pet care, and more

• Flexible working hours

• Inclusive and supportive culture

About Us

Established in 2011, Trinetix is a dynamic tech service provider supporting enterprise clients around the world.

Headquartered in Nashville, Tennessee, we have a global team of over 1,000 professionals and delivery centers across Europe, the United States, and Argentina. We partner with leading global brands, delivering innovative digital solutions across Fintech, Professional Services, Logistics, Healthcare, and Agriculture.

Our operations are driven by a strong business vision, a people-first culture, and a commitment to responsible growth. We actively give back to the community through various CSR activities and adhere to international principles for sustainable development and business ethics.

To learn more about how we collect, process, and store your personal data, please review our Privacy Notice: https://www.trinetix.com/corporate-policies/privacy-notice

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