Engineering Blog
Short, practical notes from the systems Z-SOFT builds and operates.
Capacity and cost engineering for growing SaaS
Connect unit economics, workload budgets and performance tests so growth improves margins instead of multiplying waste.
Testing distributed systems: contracts, chaos and production verification
Combine deterministic tests, failure injection and progressive production evidence for systems that cannot be proven in one environment.
Disaster recovery that proves RPO and RTO
Design backups, failover and regional recovery around measurable data loss and service restoration objectives.
Secrets and encryption-key management for multi-tenant SaaS
Control secret distribution, envelope encryption, tenant key policy, rotation and emergency revocation.
Secure SaaS APIs beyond authentication
Apply least privilege, short-lived credentials, object authorization, signed webhooks and auditable key rotation.
Observability for SaaS: SLOs before dashboards
Connect metrics, traces and logs to user journeys, tenant impact and error-budget decisions.
Sagas and durable workflows for distributed transactions
Coordinate long-running business processes with explicit state, idempotent steps and honest compensation.
Zero-downtime database migration with expand and contract
Evolve schemas safely across mixed application versions, large tables and long-running backfills.
CI/CD is more than a build: quality gates with GitLab CI and GitHub Actions
Verify source, lint, test, build and security before producing signed, traceable deployment artifacts.
Scale the database by removing contention
Manage connection budgets, query shape, indexes, replicas and partitioning before reaching for distributed complexity.
Every technology decision made today will have an impact for years to come.
Talk with the Z-SOFT team to assess your current state, define your goals and choose an architecture aligned with your business's growth direction.