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Oscilar

Sr./Staff JavaScript Developer - Web SDK (Brazil)

Oscilar
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5 months ago
Remote, BrazilSenior / Staff+
H1B Sponsor

Responsibilities

  • Lead the development and maintenance of a high-performance Web SDK for data collection and analysis.
  • Design and implement algorithms for unique device fingerprints and behavior-based insights.
  • Build and maintain a robust CI/CD pipeline with automated testing and release cycles.
  • Continuously optimize SDK performance for resource efficiency and user experience.
  • Stay updated on web technologies and security practices to enhance SDK capabilities.
  • Develop clean, maintainable, and well-documented code following best practices.
  • Conduct code reviews and mentor junior engineers.
  • Collaborate with cross-functional teams to meet quality standards and customer requirements.
  • Ensure data privacy and security principles are integrated into the SDK design.
  • Drive innovation in browser-based solutions for risk and fraud detection.

Requirements

  • Proficiency in JavaScript (ES6+), TypeScript, REST APIs, Git, and version control tools.
  • Extensive experience designing and maintaining Web SDKs or libraries focused on data collection.
  • Deep understanding of browser environments and efficient handling of browser-related data.
  • Strong knowledge of data privacy, encryption, hashing, and obfuscation techniques.
  • Experience in building cross-browser compatible solutions.
  • Understanding of server-side technologies and RESTful APIs.
  • Proficiency in modern build tools and frameworks like Webpack, Babel, or Rollup.
  • Bachelor’s degree in computer science or related field, or equivalent experience.
  • 8+ years of web development experience, with at least 3 years focused on SDKs.
  • Proven track record of contributing to open-source projects or relevant work on GitHub.

Benefits

  • Competitive salary and equity packages, including a 401k.
  • Remote-first culture — work from anywhere.
  • 100% employer-covered comprehensive health, dental, and vision insurance.
  • Unlimited PTO policy.
  • Family-friendly environment with regular team events and offsites.
  • Unparalleled learning and professional development opportunities.
  • Opportunity to make the internet safer by protecting online transactions.