FRACTIONAL CTO · ARCHITECTURE · EXECUTION · SCALE

I help B2B SaaS founders
ship faster and scale safer.

Fractional CTO and architecture partner. I turn founder vision into production-ready systems — from zero-to-one builds to scaling past Series A. Architecture, delivery, security posture, team growth.

Open to advisory Melbourne, VIC Working globally
15+
Years shipping production software
40+
Systems taken to production
6
Zero-to-one builds led
99.9%
Uptime delivered at scale
§ 01 · HOW I WORK

Make it work. Make it scale. Make it safe.

One opinionated operating model, applied in that order. Most founder pain comes from doing these out of sequence — scaling what doesn’t work, or securing what won’t scale.

PHASE 01
Ship

Make it work

Get a real product into users’ hands. Ruthless scope, boring technology, fast feedback loops. Speed is a feature.

  • MVP architecture & scope
  • Build vs. buy decisions
  • First paying customers
PHASE 02
Scale

Make it scale

Re-architect for the load that’s coming — not the load you have today. No premature complexity, no surprise rewrites.

  • Data model & infrastructure
  • Performance budgets
  • Team, process & velocity
PHASE 03
Secure

Make it safe

Security and reliability as a posture, not a one-off project. Pass the audit, sleep through the on-call.

  • Threat modelling
  • SOC 2 / ISO readiness
  • On-call & disaster recovery
§ 02 · ENGAGEMENTS

Three ways to work together.

Pick the shape that fits where you are. All of them start with a 20-minute call and a straight answer about whether I’m the right person for it.

§ 03 · CASE STUDIES

Selected work, real outcomes.

A few engagements where the numbers moved. Client names are under NDA — happy to make warm intros to references on a call.

FINTECH · SERIES A NDA

The monolith that choked at 5k tenants

A B2B billing platform was falling over under multi-tenant load. I led a strangler-fig re-architecture — no big-bang rewrite, no feature freeze.

-72%
p95 latency
3.4×
tenant capacity
0
downtime windows
Azure .NET 8 PostgreSQL Service Bus
HEALTHTECH · SCALE-UP NDA

SOC 2 Type II in a single quarter

Enterprise deals were stalling on security review. I built the controls, evidence pipeline, and on-call discipline to pass audit without grinding the roadmap to a halt.

90d
to audit-ready
0
critical findings
+$1.2M
unblocked ARR
Azure Terraform Drata GitHub Actions
MARKETPLACE · PRE-SEED NDA

Whiteboard to first 1,000 paying users

Two non-technical founders, an idea, and a deadline. I owned the stack and shipped a v1 that found product-market fit — then hired the team to take it over.

6 mo
to launched v1
1,000
paying users
4
engineers hired
.NET React Azure Stripe
LOGISTICS · GROWTH NDA

Cut cloud spend 41%, broke nothing

Infra cost was scaling faster than revenue. A focused FinOps + architecture pass right-sized the platform without a single customer-facing incident.

-41%
cloud spend
99.97%
uptime held
0
incidents
Azure AKS Redis Grafana
§ 04 · WRITING

Ideas on building SaaS, teams, and systems.

Opinions I’ll defend on a call. Mostly about doing less, more deliberately.

LET’S TALK

Let’s build something that lasts.

Talk to a real human — usually within 24 hours, Melbourne time. No pitch deck, no obligation. Just a straight read on whether I can help.

Email

I read every message myself and typically reply within 24–48 hours.

Engagement types

  • Fractional CTORETAINER
  • Architecture review2-WK SPRINT
  • Zero-to-one buildPROJECT
  • Advisory / sounding boardHOURLY

Availability

  • Fractional retainer1 slot · Q3
  • Architecture reviewsbooking now
  • New zero-to-one buildsQ4

Send a message

Prefer a form? Drop me a line and it lands straight in my inbox.

or email ash@sehajpal.com