Junior Full Stack Developer (Telecommunication)

SigmaSoftware2

Ukrainka, Kyiv Oblast, Ukraine Remote permanent

Posted: April 1, 2026

Job Description

Ready to work on cutting-edge solutions in the telecom domain? We are looking for a Junior Full Stack Developer to join our team and contribute to a high-impact project in data management and system integration.

At Sigma Software, we value innovation, collaboration, and professional growth. You’ll be part of a team that delivers scalable, cloud-native solutions for a global leader in Information and Communication Technology.

Why join us? You’ll work with modern technologies, gain experience in SAFe Agile processes, and enjoy Sigma Software’s supportive culture and benefits.

CUSTOMER

Our customer is a global leader in Information and Communication Technology (ICT), serving telecom service providers worldwide. They deliver innovative products and services for mobile and fixed communication networks, radio systems, and transmission infrastructure. Recognized for driving innovation in connectivity, the company enables next-generation communication solutions and operates in over 100 countries.

PROJECT

The team will work on a Product Information Service — a scalable, cloud-native system designed to manage product-related data and enable integration across multiple systems. The solution focuses on data management, APIs, and system integration, ensuring reliable and efficient information flow between platforms.

Key Technologies: Python, React, PostgreSQL, Node.js

• Develop and support backend and frontend parts of the Product Information Service
• Implement REST APIs and help integrate them with other systems
• Work with PostgreSQL databases (design and basic maintenance)
• Build simple and responsive user interfaces using React
• Write unit and basic end-to-end tests to support code quality
• Take part in code reviews and follow team development practices
• Create and maintain technical documentation
• Collaborate with the customer via conference calls and meetings
• Engage in SAFe Agile ceremonies including estimation, grooming, and planning sessions

• 1.5+ years of professional software development experience using Python
• Experience in implementing RESTful APIs and contributing to their design
• Hands-on experience with PostgreSQL
• Strong skills in React for building responsive UIs
• Understanding of backend system design principles
• Intermediate level of English or higher

WILL BE A PLUS

• Experience with Node.js

PERSONAL PROFILE

• Strong problem-solving skills and attention to detail
• Ability to work collaboratively in a distributed team environment
• Proactive communication and willingness to engage with stakeholders
• Adaptability to changing requirements and priorities

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