ClickMasters
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Software Development

Backend Development Company Building High-Performance Server-Side Systems FAQs

What is backend development?

Backend development covers the server-side logic, APIs, and databases that process requests and return data to frontend clients (web, mobile, integrations).

Which language should I use?

Node.js is our default for SaaS APIs; Python for AI and data processing; Go for high-throughput microservices needing maximum efficiency.

How do you handle authentication?

We use JWT with refresh rotation (RS256), OAuth 2.0 PKCE for social login, and SAML/OIDC for enterprise SSO (Azure AD/Okta).

How do you ensure performance?

Via database query optimization, Redis caching, async job queues, connection pooling (PgBouncer), and k6 load testing before launch.

What database should I use?

PostgreSQL is our standard for B2B backends due to ACID compliance and RLS. Redis is used for caching and queues; MongoDB for genuinely document-oriented data.

What is a background job queue?

It processes tasks like emails or data exports asynchronously, allowing the API to respond immediately while the work completes in the background.