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Senior technical leadership, without a full-time CTO.

I'm Abishek, an independent SaaS architect who still ships production code. Three advisory clients at a time, never more.

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Will our architecture survive 10x growth?
  • Go
  • React
  • MongoDB
  • AWS
  • GCP
  • TypeScript
  • Python
  • Node.js
  • PHP
  • PostgreSQL
  • MySQL
  • Redis
  • Docker
  • Azure
  • React Native

Four ways to work together

All services
Fractional CTOWeekly technical leadership for a team that has outgrown guesswork.Monthly retainerMost popularArchitecture ReviewA hard look at your codebase and infrastructure, with a ranked fix list.One-time
  • Codebase and infrastructure audit
  • OWASP-aligned security review
  • Database and query review
Product EngineeringI build the hard parts myself: tenancy, AI features, integrations.OngoingTechnical Due DiligenceAn independent read on a SaaS target before you commit capital.Advisory

Selected work

Anonymised engagements, with the measured outcome.

All work
Days → HoursDeploy cycleReleases that took days, shipped in hoursA lending platform where every deploy was a manual, multi-day event.Fintech0Auth incidents after redesignAn auth layer rebuilt so it stops being a riskA multi-tenant HR and payroll platform with authentication handled several ways.HR tech~40%Lower infrastructure costAbout 40% off the cloud bill, with no new infrastructureAn EV network and IoT data platform whose costs grew faster than its usage.Clean energy

AI, tools and free guides

AI and LLM workAssistants, RAG, agents and evals, built to hold up in production.
Ops assistantIllustrative demo

Which customers were affected by last night’s failed deploy?

  • Searching incident log
  • Reading runbooks
  • Checking tenant list

Tenants on the EU cluster saw errors until the automatic rollback finished. No data was lost. Sources: incident log, deploy runbook.

Stack and toolsSee the stack
Free resources

Who I work with

Founders, seed to Series A

Senior judgement on architecture, team and roadmap.

Start withFractional CTO
  • Weekly strategy calls
  • Architecture standards and reviews
  • Team mentoring and code review culture
View Fractional CTO

Latest writing

All posts
GPT-5 vs Claude 4.1GPT-5 vs Claude 4.1: The 2025 Coding Smackdown for DevelopersAI 13 Aug 2025A flat-style digital illustration showing a software developer working with a futuristic AI assistant at a modern desk. The AI is interacting with code on a floating screen, symbolizing autonomous coding. The background features tech elements like circuits and data flows, representing AI integration in development.Build 2025: Copilot Turns Into a Full AI Coding AgentAI 10 Aug 2025work-life-balance-for-developers-blog-feature9 Real Ways Developers Can Actually Balance Work and Life Without Rage QuittingDev Life 7 Aug 2025

Questions founders ask

How many clients do you take on?

Three advisory clients at a time, at most. You work with me directly.

How much time do you commit?

Typically 8 to 20 hours a week, agreed in the proposal.

Is there a long contract?

No. Work is scoped up front and retainers can be cancelled any month.

Do you work with pre-revenue startups?

Yes, including teams that have not shipped a product yet.

Which stack do you work in?

Mostly Go, React, MongoDB, AWS and GCP. Advisory work is stack-agnostic.

How do we start?

A free 30-minute call, then a written proposal with a fixed scope or a monthly retainer.

Three advisory clients at a time.

Ask about current availability. The first call is free and takes 30 minutes.

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