Senior Backend Developer (CRM from scratch)

Senior Backend Developer (CRM from scratch)

We’re looking for a Senior Backend Developer to build a CRM system from scratch. You’ll have a strong impact on architecture, product decisions, and business logic.

Responsibilities:

• Design and develop CRM architecture from scratch
• Build and optimize databases
• Develop APIs (REST / GraphQL / Webhooks)
• Implement business logic (sales pipeline, roles, access control)
• Integrate with external services
• Ensure data security and integrity

Must-have:

• 3+ years of backend development experience
• Strong SQL and database design skills (normalization, indexing, optimization, ER-diagrams)
• Experience with APIs (REST / GraphQL / SOAP, Webhooks)
• One of the stacks: Python / Node.js / PHP
• Docker + cloud platforms (AWS / GCP / Azure)
• NoSQL (Redis / MongoDB)
• Understanding of RBAC, audit logging, data security (GDPR, encryption)
• Experience with ETL processes and data handling (validation, cleaning)

Nice to have:

• Experience building CRM systems
• Strong business/system analysis skills

We offer:

• Build a CRM from scratch (no legacy)
• High impact on technical decisions
• Fast processes, no bureaucracy