Independent consultancy for delivery‑critical work

Designing, building, and securing production systems

We support teams building and operating software systems where reliability, performance, and risk matter. Engagements focus on pragmatic outcomes: clearer architecture, faster delivery, and stronger security posture — without unnecessary process.

Software delivery
From prototypes to production‑grade services
System design
Architecture, performance, and reliability
Security
Threat modeling, secure design, and reviews

Areas of expertise

Advisory and hands‑on delivery across software development, system design, and security. The emphasis is on practical decisions, clean execution, and maintainable outcomes.

Software development

Backend services, APIs, data‑heavy applications, integration work, and production hardening. Emphasis on clean interfaces and reliable delivery.

System design

Architecture reviews, scalability planning, performance tuning, resilience patterns, and operational readiness (observability, incidents, runbooks).

Security

Threat modeling, secure design reviews, risk analysis, and remediation guidance aligned to real constraints and timelines.

How we work

Structured enough to be reliable, lightweight enough to move quickly. The goal is clarity and forward progress, not documentation for its own sake.

1

Discovery

Understand context, constraints, and objectives. Identify the highest‑leverage issues and agree a scope.

2

Delivery

Hands‑on implementation or guided execution with your team. Clear milestones, transparent progress.

3

Handover

Artifacts that remain useful: architecture notes, decision records, security findings, and prioritized next steps.

Engagement models

A straightforward set of options to match how teams actually operate. All engagements start with a short scoping conversation.

Advisory (lightweight)

Architecture/security reviews, technical direction, and decision support. Suitable for planning and risk reduction.

Project delivery

Defined outcomes over a fixed period. Useful for system design, remediation programs, or new service build‑outs.

Embedded support

Integrate with your team for delivery acceleration and technical leadership, while keeping ownership inside your organization.

Commercial terms are agreed per engagement based on scope, timeline, and required depth.

Contact

Share a short overview and preferred timeline. If it’s a fit, we’ll schedule a brief intro call.

Send a message

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What to include

A
GoalWhat outcome you need (decision, design, delivery, review)
B
ContextStack, constraints, and what’s already in motion
C
TimelineTarget dates and any dependencies
Email: contact@tsiolis.org