Engineer Jobs in Web3

Crypto Bot is one of the biggest products in Telegram for buying, selling, exchanging, and transferring cryptocurrency serving tens of thousands of users each month. Since Crypto Bot's launch, our goal has been to create the most powerful crypto platform in Telegram.

What You’ll Do

● Design and launch a unified AI service: consistent usage rules, storage and re-use of results, and user-friendly interfaces for teams.

● Integrate and balance multiple AI providers, with the ability to switch between them based on defined rules (cost/quality/reliability).

● Ensure privacy: mask personal data, securely store files and parameters, and set reasonable retention periods.

● Build observability and reporting: success and performance metrics, cost dashboards, alerts for failures and budget thresholds.

● Set up background processing, retries, and resilience against failures and overloads.

● Integrate the service into key product domains (statements/receipts, merchants, profiles, anti-fraud, messaging) and provide a simple way to “double-check” and view detailed results.

● Maintain documentation, guidelines, and support product/backend/frontend teams in using AI effectively.

Requirements

● Strong production-level backend skills with TypeScript/Node.js.

● Experience integrating with AI providers (e.g., OpenAI, Anthropic) and understanding their limitations and cost models.

● Experience building reliable services: background processing, queues/schedulers, rate limiting, retries, logging, and monitoring.

● Proficiency with databases (preferably MongoDB), file/storage systems (e.g., S3), and secure secret management.

● Understanding of data privacy and security (masking, minimization, access control).

● Ability to produce transparent reporting on costs and quality (metrics, dashboards). Nice to Have

● Experience with self-hosted or locally deployed AI models.

● Background in fintech, compliance, anti-fraud, or content moderation.

● Experience building internal platforms/SDKs for other teams, and running A/B tests or experiments.

What We Offer

● You’ll work on a real product used by thousands of people every day.

● You’ll be part of a small, strong team where good ideas are noticed and supported.

● We offer room to grow — support team members have moved into compliance, product, and more.

● No bureaucracy, no micromanagement — just clear goals and ownership of your work.