SDD
Engineering PracticeSpecification-driven development for complex software changes
How I make scope, constraints, architecture decisions, acceptance evidence, and handoffs explicit before implementation.
Engineering Notes
Notes about the decisions, constraints, and evidence involved in designing and evolving backend and business systems.
CURRENT WORK
Recent Engineering Notes
The current practice extends beyond a framework list: data integrity, concurrency, authorization, system design, and disciplined delivery.
AI-assisted Engineering
Engineering PracticeHow I structure specialized AI agents for software engineering
I separate planning, implementation, review, and release decisions so complex AI-assisted changes remain inspectable.
PostgreSQL
Engineering PracticeDesigning PostgreSQL RLS for multi-tenant SaaS
Tenant isolation is a system boundary: trusted context, application authorization, database policies, and tests must agree.
EARLIER WORK
Earlier Engineering Notes
The earlier archive remains available for context.
Topic
Current engineering themes
Architecture, PostgreSQL, concurrency, authorization, SDD, and review practices for systems that must remain understandable as they evolve.
The current practice extends beyond a framework list: data integrity, concurrency, authorization, system design, and disciplined delivery.
PostgreSQL and data integrity
Relational constraints, transaction boundaries, tenant isolation, and reliable state changes.
Concurrency and authorization
Optimistic concurrency, authorization boundaries, and workflows that remain safe under change.
Specification-driven engineering
SDD, architecture reviews, specialized responsibilities, evidence, and release gates.
Distributed workflow design
Durable handoffs, idempotency, and asynchronous patterns considered with explicit trade-offs.
AI-assisted engineering
Bounded specialized roles that support analysis and implementation while engineering decisions remain human.