Senior Software Engineer (React, React Native & Node.js)

Webellian is a well-established Digital transformation and IT consulting company committed to creating a positive impact for our clients. We are driven by shared values, strong principles, and a passion for innovative and disruptive technologies. We are a community of engineers and senior advisors who work with our clients across industries, playing a deep and meaningful role in accelerating and realizing their vision and strategy.

• Master’s degree in Software Engineering, Computer Science, or related technical field
• Must-have technologies: JavaScript, TypeScript, Node.js, React
• Advantage: React Native, Expo, Microsoft Azure
• Fluency in English (minimum B2, C1 preferred)
• Excellent verbal and written communication skills
• Experience with AWS, Docker, PostgreSQL, Git/Bitbucket, and Jenkins
• Familiarity with REST APIs and GraphQL
• Familiarity with SQL and NoSQL databases
• Strong understanding of Agile methodologies and SDLC practices
• Understanding of software architecture trade-offs, scalability considerations, design patterns, and SOLID principles
• Leadership mindset with experience in technically leading projects and architectural decision-making
• Experience working in customer-facing or international environments

Nice to have:

• Experience with CI/CD pipelines and deployment automation for web and mobile applications (e.g., EAS Build for Expo)
• Experience in scaling applications and handling high-traffic workloads
• Experience with cloud-native architectures and distributed systems
• Familiarity with monitoring, observability, and production troubleshooting practices
• Experience in fintech or insuretech environments

• Analyze business and technical functional and non-functional requirements
• Design and develop clean, maintainable, and scalable code, including unit tests
• Prepare and maintain technical documentation
• Propose and implement technical improvements to applications and development processes
• Participate in troubleshooting and resolving complex technical issues
• Collaborate with other engineering teams to design and implement technical solutions
• Contribute to architectural and technical decision-making processes
• Support SDLC activities end-to-end, including development, testing, deployment, and production support
• Take ownership of technical delivery

Please include the following statement in your application: I hereby authorize Webellian Poland Sp. z o.o. to process personal data provided in this document for realizing the recruitment process pursuant to the Personal Data Protection Act of 10 May 2018 and in agreement with Regulation (EU) 2016/679 (General Data Protection Regulation).