Backend Python Tech Lead

We are looking for a strong Backend Python Tech Lead to build and run the backend of our crypto-banking product. This is a hands-on role: you will own key technical decisions, set engineering practices, and help the team deliver safely and fast. 

What you will do 

• Design, build, and maintain backend services using Python, Django, PostgreSQL. 

• Work deeply with Django ORM: schema design, migrations, query optimization, data integrity, and performance. 

• Integrate and operate Fireblocks for secure digital asset operations (wallets, transactions, approvals, policies). 

• Integrate with external services (KYC/KYT, Travel Rule, banking/FX partners, internal services). 

• Build secure and auditable flows: balances, transfers, limits, status tracking, idempotency. 

• Improve reliability: background jobs, retries, rate limits, error handling, observability. 

• Ensure security and compliance-by-design: permissions, audit trails, secure secrets handling. 

• Mentor engineers, drive code reviews, testing, and release discipline. 

• Work closely with Product/Compliance to turn requirements into clear technical solutions. 

What we expect 

• Strong production experience with Python + Django. 

• Strong PostgreSQL skills (indexes, transactions, query plans, locking basics). 

• Excellent ORM skills (efficient queries, avoiding N+1, correct relations, safe migrations). 

• Solid experience with API integrations (timeouts, retries, idempotency, webhooks). 

• Engineering leadership: architecture ownership, good trade-offs, delivery focus. 

• Security mindset and good coding practices. 

• Fluent English and Russian 

Nice to have 

• Experience with CI/CD pipelines and release workflows. 

• Docker and practical infrastructure basics (environments, secrets, monitoring/alerts). 

• Experience with Fireblocks in production. 

• Fintech / crypto / payments background. 

What success looks like 

• Backend architecture is clear, maintainable, and scalable. 

• Fireblocks and other integrations are stable, observable, and safe. 

• The team ships with predictable quality: reviews, tests, clean releases. 

• Product and compliance needs are translated into simple, secure backend solutions.