System architecture
Design a coherent system around your requirements, dependencies and constraints. Make the important decisions before complexity takes over.
- Architecture review
- Infrastructure design
Independent infrastructure engineering
Reliable systems.
By design.
System architecture, secure access and operational resilience — from the first decision to everyday operations.
Architecture. Access. Resilience.
Access, by design
Make access explicit.
Define who can reach each service, with permissions that are clear and reviewable.
Areas of expertise
From structure to continuitySecure access
Connect people and services with clearly defined permissions. Keep access manageable as your infrastructure and team evolve.
- Identity & permissions
- Protected connectivity
Operational resilience
Plan for continuity, maintenance and recovery from the start. Build systems that can be understood and operated with confidence.
- Service continuity
- Recovery planning
Engineering in practice
From architecture
to everyday operation.
Selected work in service infrastructure, access control and reliable operations.
01 /Service infrastructure
Services under
your control.
Deployed file collaboration and domain email on self-hosted infrastructure, with encrypted connections and authenticated access.
Control over hosting, configuration and access.
Managed infrastructure
FilesMail
Encrypted service connections
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The challenge
Provide everyday collaboration and communication while retaining control over where services run and how people connect.
The engineering
Configured self-hosted services, encrypted endpoints, user accounts and domain email authentication.
The verification
Checked file access and document viewing under a project account. Tested authenticated mail submission and external delivery.
02 /Access boundaries
The right access.
At the right boundary.
Scoped a shared workspace to project members, with explicit permissions and checks on both allowed actions and restricted routes.
Working access with tested restrictions.
Project member
WorkspaceAllowed
AdministrationBlocked
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The challenge
Give participants the resources they need while keeping unrelated services and administrative functions outside their access.
The engineering
Configured named accounts, group permissions and application restrictions. Kept document-viewing exceptions limited to the required route.
The verification
Checked shared resources and document previews as a project user, alongside denial of restricted applications.
03 /Operational continuity
Move forward.
Keep a way back.
Built a repeatable release process around verified artifacts, post-release checks and a retained previous version.
Verified releases with a defined rollback path.
Controlled change
VerifyReleaseCheck
↶ Previous version retained
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The challenge
Update a running platform while keeping the release scope, deployed version and recovery procedure explicit.
The engineering
Connected build and deployment checks, verified file integrity, retained the previous release and added automatic rollback on failed release checks.
The verification
Matched published files to the approved build, checked application endpoints and confirmed that protected components stayed unchanged.
Details anonymised. Diagrams illustrate engineering principles.
The engineering approach
Clear decisions.
Dependable systems.
Good infrastructure starts with understanding what it needs to do — and what happens when something fails.
Understand the system
Map the requirements, dependencies and risks. Agree on what the system must support.
Design the right boundaries
Define the architecture, access model and recovery strategy. Make the trade-offs explicit.
Make it operable
Plan the rollout and handover. Keep configuration, documentation and recovery procedures understandable.
The engineer behind Tezra
Vitaliy Mishin
Principal Engineer & Systems Architect
Over 15 years of experience designing system architectures and building secure, resilient access to services and infrastructure.
15+years of
engineering experience
engineering experience
Start a conversation
What are you building?
Share your infrastructure challenge, your constraints and where you want to go.
info@tezra.ru Let’s discuss your project.