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Senior Quant C# Developer

3XPartners - AU1Sydney, New South Wales🇦🇺AustraliaPosted 13 Oct 2026

Quick Overview

Salary
A$160k - A$190k/yr
Seniority
Mid Senior
Employment type
Full Time
Work mode
Hybrid
Location
Sydney, New South Wales, Australia
SQLC#REST

Job Description

This stable, FS firm will keep you very busy and challenged.
Opportunity to get exposed to Financial Markets Systems and Trading systems. this is NOT a 'Front Office' role as such.

5 things a Senior Quant Developer is NOT

You get sold all kinds in IT. Whether it's recruiters ringing you with "Hey check out this job, it's SUPER different than the last 500 you've seen". Or "So hey we've got an idea for the next Google. Will you do some coding for us for the next year. For free. Until we get funding?"
We're here to keep it real. Here's five things a Senior Quant Developer is not:
1. A ninja, a guru, a wizard, a rockstar or a presenter on Masterchef. You're a Senior Quant Developer. A person, that's enough.
2. A full stack developer. Building UI's.

Playing around with Jscript libraries.
3. An unbelievable opportunity. The only unbelievable opportunities are, literally, unbelievable. Because they're not true.
4. Life changing. Okay, so, in the way that technically anything, like eating a biscuit, is life changing, they're life changing. But you're not going to start living like royalty or playing for the Wallabies because you took a new job.
5. A startup backed by a powerful VC pummelling squillions of dollars into a product about to replace humans with robots. All on board? Good. Stay with me. Time for some honesty.

Here are 5 things this Senior Quant Developer role is

1. $160k - 190k pkg + bonus, (dependent on your performance of course). Some flex for the right person.
2. Working in a supportive/open environment all of whom are experienced - oh and super competent, relaxed tech lead ;-)
3. You are happy>ok doing feature dev & enhancements with C#/SQL legacy systems & willing to learn new tech/techniques with a long-term aim to deliver a completely encompassing system.
4. Involved in lots of integration, migration & troubleshooting for mission-critical trading, clearing & ops systems.

5. Gaining broad experience across financial instruments such as OTC products, futures, options, interest rates etc.

Funnily enough, there's an opportunity just like that.
We can't fit all the details in an ad, but we know there's more you'll want to know.
All you need to do is apply, and we'll tell you the rest.
Or, if it's easier, email your CV to me, Craig E: and I'll get in touch.

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