Fullstack Software Engineer (Middle+)

🚀 Join RiskSeal as a Fullstack Software Engineer for our platform!

We’re building a cross-browser Fingerprint SDK and a high-performance backend for fraud detection and risk analysis. We’re looking for a Software Engineer who enjoys working close to the browser, handling large-scale data, and solving non-trivial engineering problems.

Responsibilities

• Develop and maintain a cross-browser Fingerprint SDK using Vanilla JavaScript/TypeScript, focused on performance, accuracy, and resilience against ad blockers and privacy restrictions
• Build backend services with Node.js (Express) to process and analyze large volumes of collected data
• Work with ClickHouse for analytical workloads and MySQL for transactional data
• Design and optimize raw SQL queries for high-performance data access
• Contribute to fraud detection and risk analysis systems by identifying patterns and anomalies in data
   

Requirements

• 3+ years of experience with JavaScript/TypeScript and raw Node.js (Express)
• Strong experience with JavaScript in the browser
• Experience writing and optimizing raw SQL queries
• Familiarity with high-volume data processing or analytics systems
• Bonus: experience with fingerprinting, anti-fraud systems, or cybersecurity

Nice to Have

• Experience dealing with ad blockers, tracking prevention (Safari/Firefox), or similar constraints
• Background in security, fraud detection, or risk analysis

What We Offer

• A collaborative and dynamic work environment with minimal bureaucracy, allowing for quick decision-making and efficient workflows.
• Opportunities for professional growth and development.
• The chance to work on cutting-edge technologies and challenging projects.
• Competitive salary and benefits package.
• Flexibility in work hours and location.

Interview process (2 steps):

Step 1 — Recruiter screening

Step 2 — Technical interview

📩 Ready to Join?
Send your resume, and let’s achieve great results together!