Engineering · AI · Systems

Sagar Sutaria.

Solo studio operator. 13+ years shipping production systems.

Senior engineering help for founders and CTOs who need an AI feature shipped, a platform that holds up under real load, or a steady senior voice on architecture decisions.

Fixed scope AI integration from €25K. Build engagements from €30K, capped at €60K. Advisory retainer from €8K per month. Three to four engagements per quarter, no more.

13+
Years senior engineering
7
Production platforms shipped
3–4
Engagements per quarter, capped
€8K–€60K
Engagement price range
01 Services

Three shapes of engagement.

AI feature stuck in eval. Platform creaking under load. An architecture decision you cannot delegate. Most projects start with a 30 minute call.

Most asked for in 2026

AI Integration

Add AI to a product that already has users. Retrieval over your own data, agentic workflows where they earn their keep, evaluation harnesses that produce honest numbers. Production grade and fixed scope.

  • Architecture review and integration plan in week one
  • Production ready feature shipped in 6 to 10 weeks
  • Eval harness, monitoring, and cost guardrails included
From €25K, scope locked
6 to 10 weeks. 50% on signing, 50% on shipped.
Read more about AI integration

Build Engagement

Fixed scope, fixed price engineering. Greenfield product, platform modernization, or a feature your team has been blocked on. End to end ownership through delivery and handoff.

  • 4 to 12 weeks, scope locked at the SOW
  • 20% milestone holdback for shared accountability
  • Production ready handoff with documentation and runbooks
From €30K
4 to 12 weeks. Capped at €60K. Scope locked SOW.
Read more about build engagements

Advisory Retainer

Senior technical judgment on a retainer for founders and heads of engineering who do not need a full time CTO. Architecture, hiring, scaling, vendor selection, the decisions that sit outside the sprint board.

  • Weekly 1:1 call. Async between calls.
  • Monthly architecture and roadmap reviews
  • 4 week pilot available before any 6 month commitment
From €8K per month
6 month minimum. €10K to €12K pilot (4 weeks).
Read more about the advisory retainer
About the pricing. Reflects 13+ years of senior engineering experience, including career stints at Tesco and Lowe’s, plus production work shipped across HR, real time marketplaces, AI enabled SaaS, and content platforms. Three to four engagements per quarter. The throttle is intentional and stays in place even when the calendar is empty.
02 Selected work

Production systems shipped.

Four production platforms across HR, real time geospatial, content streaming, and consumer software. Each architected end to end and operated long enough to learn what the first design got wrong.

03 Recent writing

Writing in progress.

Notes from the build floor. Drafts in progress.

04 About

Background, briefly.

Sagar Sutaria. Engineering leader with 13+ years across enterprise and scale-ups.

Career stints at Tesco and Lowe’s. Production work shipped across HR, real time marketplaces, AI enabled SaaS, and content platforms. Currently runs the studio under QuantaLynk, the legal entity behind these services.

Engagements available in three shapes: AI integration on a fixed scope, a build engagement for a defined product or feature, and a fractional advisory retainer. Founders, heads of engineering, and peer CTOs welcome to start a conversation.

05 Start a conversation

What is on your desk?

Founders, heads of engineering, peer CTOs. One paragraph about what you need built, fixed, or unblocked is enough to start.