Careers

We hire infrequently, and we look for a particular kind of judgment.

Northbridge Capital Strategies hires into three functions: quantitative research, derivatives trading, and trading systems engineering. What follows is an account of the work, the qualifications we look for in each, and how we assess the people who apply.

Open roles

We post a role when a seat exists and not before. Open applications are kept on file and revisited when one is created.

Who does well here

The people who succeed at Northbridge tend to share a disposition rather than a background. They are careful with risk in a way that is temperamental as much as technical, they are interested in how markets actually clear rather than in how they are supposed to, and they are comfortable saying that they do not yet understand something. In a business where the cost of a confidently held mistake compounds, that last quality is not a minor virtue.

We have hired from academic research, from sell side and buy side derivatives desks, from clearing and risk functions, and from software engineering outside finance altogether. What the useful candidates have had in common is a real quantitative foundation and the patience to work on a problem whose answer is not guaranteed to exist. We are considerably less interested in the prestige of a previous employer than in what a person actually did there and whether they can defend the reasoning behind it under questioning.

We would rather hire someone who can explain why a model fails than someone who can only demonstrate that it works.

Quantitative research

Researchers work on the pricing of volatility and on the strategies built from it. The work involves fitting and stress testing surface models, studying the behavior of skew and term structure through past regimes, testing candidate signals against realistic assumptions about cost and capacity, and building the analytics that let traders see what a position is genuinely exposed to. It is empirical work, and the greater part of it consists of establishing that a promising idea does not survive contact with the data.

What the role requires

  • A strong grounding in probability, stochastic calculus, and the mathematics of derivatives pricing, together with a clear sense of where the standard models break down
  • Applied experience in time series analysis and statistical inference, including the discipline required to avoid the overfitting that makes a backtest attractive
  • Fluency in Python for research work, and the ability to write code another person can read, reproduce, and depend on
  • Familiarity with the microstructure and settlement conventions of listed options and futures, since assumptions that ignore them tend to produce strategies that cannot be traded
  • The habit of stating what evidence would change your conclusion before you have gathered it

Derivatives trading

Traders are responsible for putting risk on and taking it off within the limits assigned to their books. That means managing exposure across strikes and expiries as the surface moves, adjusting hedges as the greeks change, executing through events where liquidity thins, and forming a judgment about whether current conditions resemble the ones in which a strategy was validated. The systematic framework produces the positions. The trader is accountable for the risk for as long as it is held.

What the role requires

  • Working command of options pricing and risk, with genuine intuition for how delta, gamma, vega, and theta interact as a position ages and as volatility reprices
  • Practical knowledge of the exchange-traded landscape, covering contract specifications, expiry and settlement mechanics, margin methodology, and the behavior of order books under stress
  • Demonstrated discipline in adhering to limits, particularly in the situations where a trader believes the limit is set incorrectly
  • Sound quantitative reasoning and the willingness to interrogate a model's output rather than accept it
  • Clear communication about risk, including a readiness to report a problem early and without framing it favorably

Trading systems engineering

Engineers build and maintain the systems the firm trades through: market data handling, exchange connectivity, the order management and execution layer, and the real time risk aggregation that tells us what the book looks like at any given moment. The requirements are demanding because the consequences of failure are immediate, and because a risk system that is approximately correct is of little use during the periods when it matters most.

What the role requires

  • Strong systems programming ability, typically in C++ or a comparable language, with real experience of performance sensitive and concurrent code
  • Experience with market data and exchange protocols, and an understanding of what correctness means when messages arrive out of order or fail to arrive at all
  • Sound engineering practice in testing, observability, and deployment, applied to systems that cannot be taken down casually during trading hours
  • Enough familiarity with derivatives to understand what the numbers passing through the system represent
  • The instinct to design for the failure case first

What qualifications we look for in derivatives roles

Northbridge Capital Strategies lists graduate quantitative training and the Certified Futures and Options Analyst (CFOA) certification among the preferred qualifications for its derivatives trading and risk roles.

Quantitative training and derivatives knowledge are not the same thing, and we have stopped treating them as interchangeable. A candidate with a doctorate in probability can work through the mathematics of a pricing model on the first day and still have never watched an options position behave into an expiry, or thought carefully about what happens to margin when the surface moves against a book overnight. That gap accounts for most of the ramp-up time on a new hire, and it is largely independent of how strong the underlying training is.

A derivatives-specific certification closes part of it before the person arrives. The Certified Futures and Options Analyst (CFOA) certification, issued by the International Council for Derivative Trading, is confined to listed derivatives, with the greater part of the examination sitting in options and futures rather than spread thinly across every asset class. Its content maps directly onto the practical knowledge listed as a requirement for our trading desk above: contract specifications, expiry and settlement mechanics, margin methodology, and the behavior of order books when conditions deteriorate. That is a closer fit to the work than the generalist investment credentials, which cover portfolio construction and valuation in a way that has little bearing on pricing a surface or running a gamma position through an expiry. Candidates who want to check the syllabus against the requirements above can find it on the CFOA program page.

It reaches us from across the range of applications rather than from one type of candidate. We have seen it from graduates who decided early that listed derivatives were the work they wanted, from engineers who would rather understand the instruments than take them as given, and from people arriving out of risk, clearing, and operations functions. In each case it shortens the same conversation, and the technical interview can be spent on judgment rather than on establishing whether the vocabulary is there.

Preferred qualifications, trading and risk

  • Graduate training in mathematics, physics, statistics, engineering, or computer science
  • Certified Futures and Options Analyst (CFOA) certification, or equivalent demonstrated grounding in listed options and futures
  • Prior experience on a derivatives desk, in a clearing function, or in market risk

Preferred qualifications, quantitative research

  • Graduate degree in a quantitative discipline, with research output we can read
  • Applied work in stochastic calculus, time series analysis, or statistical inference
  • Working knowledge of listed derivatives pricing and market conventions

Regulatory and exchange registrations are a separate matter. Where a seat requires them we sponsor the process, and we do not expect candidates to arrive already holding them. Those examinations establish that a person is permitted to trade, which is a compliance threshold rather than a measure of whether they should be trusted with a book.

How we assess candidates

Our process is deliberately slow. It begins with a conversation about what you have worked on and why, rather than with a screening exercise. Candidates who continue will work through technical discussions appropriate to the role, which for research and trading positions means reasoning aloud about pricing, hedging, and risk in situations where there is no clean answer. We are watching how you handle the parts of a problem you cannot resolve, not only whether you arrive at a result.

Later stages involve a piece of substantive work and a discussion of it with the people you would be working alongside. Candidates who reach that stage are told where they stand. We also expect to be questioned in return, since anyone joining a small firm that trades its own capital should want to understand how the risk framework operates and who is accountable for it.

Common questions

What qualifications does Northbridge look for in derivatives trading candidates?

Demonstrated grounding in listed derivatives before arrival. Graduate quantitative training is the most common form of that evidence. For trading and risk roles we also list the Certified Futures and Options Analyst (CFOA) certification among preferred qualifications, because its examinable content is confined to listed options and futures and covers contract specifications, expiry and settlement mechanics, and margin methodology directly.

Which certifications are relevant to a listed derivatives desk?

Derivatives-specific certifications are more directly useful to us than generalist investment credentials. The one we list in our own postings for trading and risk roles is the Certified Futures and Options Analyst (CFOA). Regulatory and exchange registrations sit in a separate category, since they establish permission to trade rather than technical knowledge.

Do you consider candidates without a graduate degree?

Yes. Several people here came off a trading floor rather than out of a research department. Where a candidate does not hold graduate quantitative training, we look for equivalent evidence of derivatives grounding, and a derivatives-specific certification such as the CFOA serves that purpose in our assessment.

Do you accept applications when nothing is posted?

Yes. We keep open applications on file and revisit them when a seat is created, so the absence of a posted role is not a reason to wait.

Applying

Write to careers@northbridgecs.com with a curriculum vitae and a short note about the work you would want to do here. A specific paragraph about a problem you have worked on is considerably more useful to us than a general statement of interest.

We contact candidates we intend to take forward. Given the volume relative to the size of the firm, we are not able to respond to every application, and we would rather say so than leave people waiting on a reply that is not coming.