Security, verification and reliability
Engineering disciplines that check systems behave as required and can be operated with the right controls.
Access control, testing and recovery are designed into the system from the start rather than added at the end. Each is chosen for the system and the environment it operates in.
What this covers
Specialist security testing or formal assurance is scoped separately when the work requires it.
Define authentication, authorization, roles, and service access. Integrate access controls with application behaviour and infrastructure, including the handling of credentials and secrets.
Build checks for components, interfaces, and complete user or system flows. Select coverage around business rules, integration risks, expected behaviour, and known failure conditions.
Compare implementation options and measure behaviour under defined conditions. Use prototypes, benchmarks, and representative workloads to inform architecture and implementation decisions.
Define expected behaviour during dependency failures, deployment changes, and operating incidents. Establish monitoring, recovery procedures, and acceptance checks appropriate to the service requirements.
Assess trust boundaries, data handling, access, and relevant engineering requirements. Record findings and remediation responsibilities. Specialist security testing or formal assurance is scoped separately when required.
Work that used this capability
Case studies, described as they were built.
Workspace-level permissions that carry down to every project and asset
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Building a test suite that makes releases predictable for a growing AI and data platform
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Running user code and parsing documents in isolated services
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A controlled three-environment release pipeline on Azure
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Live run monitoring and cancellation across server instances
Read case studyServices that draw on it
Common questions
Can you add automated tests to an existing system?
Yes. One case study added unit, integration and end-to-end tests to a Python backend that had no test suite, covering its databases, orchestration, storage and language model calls.
How do you approach authorization?
We define roles and rules once and enforce them on every request. Our case studies include a central authorization service built in Rust with Casbin and permissions that carry down from workspaces to every project and asset.
Discuss your initiative
Share the initiative, what it needs to achieve, and the constraints you already know. We can discuss the engineering work involved and whether CharCentric is the right partner.