Services

Engineering that makes systems stronger, faster, and simpler.

Posseth Software delivers focused technical contributions to .NET platforms that are too important for half-measures. No consultancy theater. Concrete architecture, security, and implementation.

Offerings

Where Posseth Software adds direct value

Platform architecture

Design and review of .NET architecture that remains scalable and maintainable.

  • Platform choices: Razor Pages, Minimal APIs, modular monolith vs. services
  • Data flow and integration patterns without hidden complexity
  • Technical roadmap and refactoring strategy
Discuss architecture

Security-first web engineering

Hard security defaults as part of the design, not an afterthought.

  • Strict nonce-driven CSP (A+ baseline) via SafeWebCore
  • Headers, transport security, COOP/COEP, Permissions Policy
  • Security reviews and hardening of existing applications
View SafeWebCore

Refactoring & technical debt

Remove technical debt instead of moving it. Make systems understandable again.

  • Deep code reviews and architecture analysis
  • Incremental refactoring with measurable improvement
  • Modernize legacy .NET to .NET 10 / C# 14
Start refactoring conversation

Production-grade delivery

From analysis to implementation that keeps working in production.

  • Performance optimization with Span<T>, ArrayPool and real measurements
  • Observability, logging and error handling that actually helps
  • Deployment, hardening and monitoring as part of delivery
Discuss delivery

Open source tooling

Libraries that help teams ship faster and safer

SafeWebCore

Strict security headers for ASP.NET Core

A+ CSP baseline with nonce support for Razor. One-line setup, no jQuery, no unsafe-inline.

View project GitHub

SharpCoreDB

High-performance embedded database for .NET 10

SQL, encryption, file-based storage. Zero-allocation patterns, transactional writes, C# 14.

View project GitHub

How an engagement looks

Every project is different, but the approach is consistent: first understand, then measure, then targeted changes with clear rationale.

  1. Discovery: technical context, pain points and goals
  2. Analysis: architecture, security, performance and maintainability
  3. Proposal: concrete deliverables with scope and criteria
  4. Execution: implementation, review and knowledge transfer
  5. Wrap-up: documentation, measurements and handover
Start a conversation