Staff JavaScript Developer

About the Company

Oscilar is building an advanced AI Risk Decisioning™ Platform. Banks, fintechs, and digitally native organizations rely on Oscilar to manage fraud, credit, and compliance risk using the power of AI.

Responsibilities

• Lead the development and maintenance of a high-performance Web SDK for collecting and analyzing browser and device-related data
• Design and implement algorithms to create unique device fingerprints and capture behavior-based insights
• Build and maintain a robust CI/CD pipeline with automated cross-browser testing and release cycles
• Optimize SDK performance to minimize resource usage
• Develop clean, maintainable, and well-documented code
• Conduct thorough code reviews and mentor junior engineers
• Collaborate with cross-functional teams to meet high-quality standards and customer requirements
• Ensure data privacy and security principles are embedded in the SDK design

Requirements

• 8+ years of experience in web development
• 3+ years focused on building and maintaining SDKs
• Proficiency in JavaScript (ES6+), TypeScript, REST APIs, and Git
• Extensive experience designing Web SDKs or libraries for data collection, tracking, or analytics
• Deep understanding of browser environments, APIs, and efficient data handling
• Strong knowledge of data privacy, encryption, hashing, and obfuscation techniques
• Experience with modern build tools like Webpack, Babel, or Rollup
• Bachelor’s degree in Computer Science, Software Engineering, or equivalent experience

Preferred Qualifications

• Experience with AI-driven analytics, risk systems, or fraud prevention technologies
• Familiarity with JavaScript SDKs, gestures, and interaction data processing
• Prior experience in a high-scale, distributed environment

Benefits

• Competitive salary and equity packages
• 401k
• 100% employer-covered comprehensive health, dental, and vision insurance (US)
• Unlimited PTO
• Remote-first culture