Senior Typescript Engineer

Fingerprint empowers developers to stop online fraud at the source.

We work on turning radical new ideas in the fraud detection space into reality. Our products are developer-focused and our clients range from solo developers to publicly traded companies. We are a globally dispersed, 100% remote company with a strong open-source focus. Our flagship open-source project is FingerprintJS (20K stars on GitHub).

We have raised $77M and are backed by Craft Ventures (previously invested in Tesla, Facebook, Airbnb ), Nexus Venture Partners (previously invested in Postman, Apollo.io, MinIO, Druva) and Uncorrelated Ventures (previously invested in Redis, Rollbar & Gradle).

Fingerprint is the world's most accurate visitor identifier platform, offering a suite of advanced smart signals including bot detection (capable of identifying even stealth plugins from well-known automation tools), industry-leading VPN detection, and browser tampering detection powered by machine learning.

We are seeking a Senior R&D Engineer to join our team and help expand and mature our existing Smart Signals, as well as develop new ones from scratch. The ideal candidate will be an expert in TypeScript with a deep understanding of web technologies. Additionally, we require broad understanding of software engineering and be eager to learn new technologies and approaches to tackle open-ended, challenging problems. Expertise in TypeScript is essential for this position; however, you will also have the opportunity to work with a variety of other technologies and frameworks.

Responsibilities:

• Enhance JS Agent with new features and implement their backend counterparts in Golang.
• Develop and enhance Smart Signals.
• Conduct A/B testing and other experiments to validate solutions.
• Set up and maintain analytical dashboards with various metrics.
• Collaborate with cross-functional teams to develop and deploy new features.
• Stay updated with the latest industry trends and technologies to continuously improve the platform.

Requirements:

• Strong expertise in TypeScript.
• In-depth understanding of web technologies.
• Experience with browser APIs (DOM, AJAX, page lifecycle events, etc.).
• Knowledge of the HTTP protocol and web security practices.
• Broad knowledge of software engineering principles.
• Willingness to learn and work with various technologies and methods.
• Effective communication skills in English, both verbal and written.

Bonus Points if you have:

• Experience in backend development, particularly with Golang.
• Hands-on experience with AWS services and infrastructure.
• Previous experience in …