Solve the $100 Trillion problem.

We are engineers, traders, researchers, builders, all working together to design interbank
market infrastructure that is trusted, governed and built to last.

CareersIDBX Corporation · London

No legacy to maintain.Everything here is version one.

Interbank market infrastructure is rebuilt about once a generation, and this is the generation. There is no twenty year old matching engine to keep alive, no migration to inherit, and no team that owns the part you need to change. The matching engine, the netting, the settlement design, the intelligence layer: each is being written for the first time, by a small number of people, and you would be one of them.

Senior people, deep ownership, and a build where the thing you ship is the thing institutions trade on.

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London --:-- New York --:-- Singapore --:--

Why Join


You will work on problems
that are complex, consequential
and quietly important.

Why now

The last generation electronified the phone call. This one re-architects the venue itself.

Interbank markets still run on infrastructure shaped by the constraints of another era: per-ticket brokerage, fragmented execution, settlement chains that add risk instead of removing it. The platforms that modernised trading twenty five years ago are now the incumbency. IDBX starts from a clean sheet subscription based execution, atomic settlement in central bank money where available, and intelligence governed from day one. Nothing here is a retrofit. Everything is the first version, and you would be among the people who write it.

IDBX Engineering

Design and build low latency systems that operate at institutional scale, where reliability, clarity and resilience matter more than novelty.

AI Research

Work on agentic AI that supports human decision making in global regulated markets, with governance, accountability and real world constraints built in from day one.

How we build

Four commitments. No exceptions.

Correctness before cleverness.

Market infrastructure fails loudly and expensively. We prove behaviour before we admire it.

Latency is a feature of trust.

Determinism and speed are how a venue earns the right to sit between counterparties.

Governance is architecture, not paperwork.

AIDANN operates inside limits, controls and audit by construction regulated markets deserve intelligence they can inspect.

Small team, whole problems.

You will own systems end to end. There is nowhere to hide, and nothing more satisfying.

$0T
The problem we're solving
0
Commitments. No exceptions.
0
Weeks to a decision
How we hire

Deliberately.

IDBX is a dedicated founding team, and we intend to remain difficult to join. There is no application portal and no talent community. Write to us about a problem in market structure you believe is worth years of your life every note is read by the founder. One conversation about the problem. One technical session on real work. A decision inside two weeks.

Introduce yourself →

Inside the building

A small floor, and the whole problem on it.

Most people who work on market infrastructure spend their careers on one component of someone else’s system, several layers away from the institution using it. Here the person who writes the matching engine sits near the person who traded on one for twenty years, and both of them are in the room when a bank explains what is actually wrong with its settlement flow.

01

Frontier technology, with a real user at the end of it

Agentic systems, real-time tokenisation and sub-millisecond data are among the most interesting problems in software right now. Here they are pointed at something concrete: a trade that has to settle, for an institution that will tell you plainly if it did not.

02

People across the whole spectrum

Engineers who have built exchanges, traders who have run books through three crises, researchers, designers and regulatory specialists, on one floor. The range is the point: nobody here only speaks their own language.

03

Nothing between you and the change

No ticket queue, no committee that owns the module you need to alter, no quarter-long wait for a decision. If you can argue for it you can build it, and you will know by the end of the week whether it was right.

04

Your work carries your name on it

You present your own design to the institution that will use it. On a team this size there is nowhere for good work to be absorbed into someone else’s slide, and nowhere for weak work to hide either.

05

Built to be handed over

Everything is written to be read by the next engineer and by a regulator: deterministic, tested, and explainable. It is a discipline that raises the standard of everyone working inside it.

06

Room that grows with the venue

Early people end up owning more than they were hired for, because the surface expands faster than the headcount. What your job covers in two years is not something either of us can write down today.

Where the work is

Built in London. Used across three sessions.

Interbank markets do not stop, and neither do the conversations that shape them. The venue is built in London; the institutions, central banks, custodians and venues it connects to are not, which means the work regularly happens in their rooms rather than ours. Onboarding an institution, presenting to a central bank’s market infrastructure team, sitting with a desk through its first week on the platform: none of that is done over email. As the venue expands into new currencies and jurisdictions, the people who built each part are the ones who go and explain it.

The clock below is your own. The session marked open is the one trading as you read this, which is roughly how the working day is organised here.

SessionsLive
London Where it is built. Sterling, euro and the European session. --:--
New York Dollar liquidity, and the counterparties that set it. --:--
Singapore The Asian session, and the fastest moving tokenisation work. --:--

Five divisions

Pick the part of the venue you want to own.

An end to end trading venue is five machines that have to agree with each other: the intelligence layer, the exchange core, the data spine, the screen a dealer actually works on, and everything that happens after the trade. Choose a division and you will see what sits inside it.

How we hire

Four conversations. No take-home exercise.

You are senior enough that your time is the expensive part of this process, so it is short and it is specific. You will meet the people you would work with, not a panel of proxies, and you will get an answer either way.

01

A conversation, not a screen

Forty five minutes on what you have built and what you want to build next. No competency grid.

02

The real problem

We put an actual design question from the division in front of you and work through it together, at a whiteboard or in an editor.

03

The people around you

Time with the engineers and the desk you would sit beside, so you can interview us as hard as we interview you.

04

Terms, then a decision

An offer with the scope written down, or a straight no with the reason. Nobody is left waiting.

Send us your work → See who you would be working with →

Write to us even if nothing above is an exact fit. Tell us which division you belong in and what you would want to own inside it: on a team this size, the role is usually shaped around the person rather than the other way round. A repository, a paper or a system you can describe in detail is worth more to us than a covering letter.

Modernise interbank flows without
replacing your infrastructure.

We integrate alongside existing systems, supporting progressive
adoption and flow by flow migration.

Discuss institutional onboarding
Talk to our team

Come and build it

The first version of anything
is written by very few people. Be one of them.

If one of the five divisions is obviously yours, say so. If none of them is an exact fit but you can see where you would belong, say that instead: on a team this size the role is usually shaped around the person rather than the other way round.

Send us your work → Not looking yet? Introduce yourself anyway →

Tell us which division you belong in, what you would want to own inside it, and point us at one thing you have built that you can describe in detail. A repository, a paper, a system you designed: any of those is worth more to us than a covering letter. Every application is read by someone who would work with you, and you will get an answer either way.

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