John Jayasankar

Lead Product Manager · New York

I build production AI agents and 0 to 1 financial infrastructure.

For high-stakes workflows. At Quantile (LSEG), that means agents that cut expert work from hours to minutes, and market infrastructure used by global banks. Outside work, I ship independent products end-to-end: RideLens, Daylight, RailDrop, and Gridiron.

  • Quantile (LSEG)
  • OpenGamma
  • Wells Fargo

Agents + markets · Quantile systems

Production AI · human gate · multilateral compression

Hours  to minutes

Schematic · Quantile systems · Offsets inside a risk envelope

Phases1-3 · select to hold

Reading the schematic interfaceTwo production agents, one for compression-run setup and one for incident triage, cut expert work from hours to minutes; their typed actions wait at a human approval gate; and, separately, offsets settle multilaterally through a central settlement service, with 34% more notional reduction per run.

Production AI on Work

What I work across

Production AI, market infrastructure, and 0→1 product work

  • Production AI agents
  • Derivatives compression
  • MCP servers
  • Initial margin
  • Agent evals
  • FX forwards & NDFs
  • Human-in-the-loop controls
  • Portfolio optimization
  • Tool calling
  • CCP clearing
  • 0 to 1 launches
  • Platform & API products

03Labs

Instruments I shipped. Independent products, built end-to-end.

Consumer tools, a live football command center, and a native macOS app, each designed, built, and shipped live. No demos. Four of the eight have case studies here; the whole bench is on Labs.

01 / Consumer

RideLens

Every ride, one comparison.

Live roads. Real rate cards. Uber, Lyft, Empower, and Curb ranked before you open four apps and guess.

02 / Native

Daylight

Your screen, through the day.

Warmth and brightness on a schedule you set: gradual, offline, and honest about what it is doing and why.

03 / Consumer

RailDrop

Know when your train gets cheaper.

Book the trip. Watch every bookable Amtrak option across your window. One email when a listed fare actually drops.

04 / Live data

Gridiron

Every game. Every drive. One view.

A live NFL and college football command center: a 3D field for every game, with the reported ball spot, win probability, and odds beside it.

04Approach

Agents should earn autonomy. Model capability is only one layer.

Consequential workflows need context, bounded tools, deterministic services, human control, and evidence that the system deserves more scope.

Full approach

01

Start with the workflow.

Map handoffs, exceptions, and the cost of being wrong before choosing a model. If the operating model would not change, it is not an agent problem.

In the workSetup Agent

02

Agents should earn autonomy.

Context, bounded tools, deterministic services, and human control are the product. Autonomy grows one rung at a time, on evidence.

In the workIncident AgentAgent Platform

03

Reliability is a feature.

In markets and in agents, a late failure is a product failure. Validation, evals, and operator visibility belong in the design, not in the cleanup.

In the workValuationFX & NDF

06Contact

Hiring for production AI or market infrastructure?

Get in touch

I ship agents that change how real operations run and market infrastructure used by global banks, and I build independent products end-to-end. If that is the bar for your team, email me.

j / k sections & systems · Enter on a system · y link · t top · e email · ⌘K jump