Junior Software Developer contributing to full - stack development of web - based applications in a geospatial intelligence company. Collaborating in an agile team with exposure to innovative projects.
About the role
- Senior Full Stack Developer optimizing performance of embedded solutions on Stay22’s platform. Collaborating on development and maintenance of the core infrastructure.
Responsibilities
- Continuously optimize script load times and execution efficiency (minification, caching, lazy loading).
- Build reliable methods to inject content and widgets across different sites (DOM manipulation, dynamic layouts).
- Develop precise event handlers to track user interactions with embedded elements.
- Implement fingerprinting techniques to track user sessions while respecting privacy requirements.
- Create and maintain Node.js/Python scrapers to collect data from partner sites or APIs, with fallback sources to ensure resilience.
- Troubleshoot and adapt script logic for real-world conditions and handle conflicts with other third‑party scripts.
- Oversee the full stack of embedded products (scripts, SDKs, APIs) and collaborate with teams to integrate new features.
Requirements
- Proficiency in English to collaborate with international colleagues.
- Deep experience with vanilla JavaScript / ES6+ or TypeScript, without relying on frameworks (React/Vue not required).
- Strong understanding of the event loop, DOM/CSSOM, and web performance optimization (FCP, LCP, etc.).
- Proficiency with Node.js for APIs and scrapers; Python is a plus. Familiarity with HTTP, REST/JSON and proxies.
- Understanding of fingerprinting techniques and privacy implications (cookies, sessions, CORS, GDPR).
- Open source contributions or public GitHub projects are a plus.
- Bachelor’s or Master’s degree in Computer Science or equivalent practical experience.
Benefits
- Comprehensive benefits: health, dental, retirement plans, training and development opportunities, social activities and team-building events, including memorable company retreats.
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