Solution Architecture Case Studies
Independent Project / Solution Architecture / Cloud / Cybersecurity / Resilience
Recruiter-facing solution architecture portfolio demonstrating how business requirements are translated into secure, resilient, governable technical designs through three complete case studies: secure cloud migration, zero-trust enterprise access, and resilient data and application platform design.
Problem or objective
Organizations need architecture decisions that connect business drivers, security boundaries, resilience objectives, operational constraints, costs, and implementation risks rather than diagrams without decision context.
Rachel's role
Sole solution architect and full-stack portfolio builder responsible for requirements decomposition, target architecture, trust boundaries, ADRs, tradeoff analysis, risk registers, resilience planning, implementation roadmaps, UI/UX, testing, and public documentation.
Process
- 01Business problem and stakeholder analysis
- 02Functional and non-functional requirements
- 03Constraints and assumptions
- 04Architecture principles
- 05Target architecture and trust boundaries
- 06Security and resilience controls
- 07Architecture decision records and alternatives
- 08Tradeoff analysis
- 09Risks and mitigations
- 10Phased implementation roadmap
- 11Validation and quality checks
Architecture components
Case studies
- Secure Cloud Migration
- Zero-Trust Enterprise Access
- Resilient Data & Application Platform
Decision artifacts
- Architecture decision records
- Alternatives considered
- Tradeoff analysis
Security controls
- Identity-first access
- Least privilege
- Private services and secrets management
Resilience
- Multi-zone availability
- Backups and restore testing
- Graceful degradation and disaster recovery
Case study
Business problem
Architecture diagrams alone do not explain why a design is correct. This portfolio translates business outcomes into technical requirements, constraints, security boundaries, resilience objectives, and operational realities, so each decision can be traced back to the driver behind it.
Three architecture case studies
- Secure Cloud Migration: workload assessment, landing zone design, migration sequencing, and security boundaries
- Zero-Trust Enterprise Access: identity-first access, device and session posture, segmentation, and least-privilege authorization
- Resilient Data & Application Platform: availability targets, data protection, degradation modes, and recovery design
Architecture decision records
- Explicit context statement for every decision
- Decision recorded with the alternatives that were considered
- Benefits and tradeoffs stated openly rather than only upside
- Operational impact captured alongside the technical choice
Security and resilience
- Identity-first access, least privilege, and private services
- Secrets management and observability as first-class design concerns
- Multi-zone availability with backups and tested restores
- Graceful degradation and disaster recovery planning tied to stated objectives
Risk and implementation planning
- Synthetic risk register with likelihood, impact, and mitigation
- Named ownership roles rather than unassigned action items
- Phased reference roadmaps that sequence work by dependency and risk
- Validation activities defined for each phase
Responsible portfolio boundaries
- All organizations, scenarios, and data are hypothetical and synthetic
- Architectures are illustrative references, not deployed systems
- No production deployment or real environment connection
- No certification, assessment, audit, or compliance claim
Engineering quality
- TypeScript, React, and TanStack Start with typed content modules
- Automated tests covering case study and decision data
- Typecheck clean with 0 errors
- Lint clean with 0 errors
- Successful production build
Tools and technologies
- TypeScript
- React
- TanStack Start
- Tailwind CSS
- Solution Architecture
- Cloud Architecture
- Zero Trust
- Architecture Decision Records
- Risk Management
- Disaster Recovery
- Resilience Engineering
Security and ethical considerations
- Hypothetical organizations, synthetic data, and illustrative reference architectures only
- Identity-first access, least privilege, private services, and secrets management modeled as design guidance
- No production deployment, live environment connection, or customer data of any kind
- No certification, assessment, audit, or compliance claim is made or implied
- No secrets, credentials, or private configuration in the public repository
Outcome
A public, documented solution architecture portfolio presenting three complete case studies with target architectures, trust boundaries, architecture decision records, tradeoff analysis, synthetic risk registers, and phased implementation roadmaps, verified with automated tests, typecheck, lint, and a clean production build.
Portfolio project using hypothetical organizations and synthetic data only. All case studies, decision records, risks, roadmaps, and metrics are illustrative. Nothing here reflects a production deployment, and nothing constitutes certification, assessment, audit, or a compliance claim.