Senior Software Engineer - 18 Month Maximum Term Contract

If you also believe that everyone should be able to achieve their financial potential, then you’ll love contributing to CMC Markets’ company vision of providing the ultimate trading experience. Seize the opportunity to progress your career in the fintech industry by joining a global leader in CFD trading and share investing. Grow yourself personally and professionally with a company that’s growing with you, by global expansion and product offering.

As a Senior Software Engineer in our Market Data squad, you'll work on systems that process millions of data points daily, powering trading decisions for clients across the globe. This is backend engineering where performance matters, where milliseconds count, and where your code directly impacts real-time trading experiences. You'll tackle fascinating technical challenges around scalability, concurrency, and data processing whilst working with modern cloud technologies

Working in a focused squad of three engineers reporting to our Market Data Technical Lead, you'll gain deep expertise in high-performance financial systems, cloud-native architecture on AWS, and building software that operates at scale.

Why You'll like working here

Just some of the reasons you’ll love working here include:

• Leave benefits: Enjoy your birthday off to spend time with family and friends, on us! Utilise a free annual charity day to give back to your community.

• $0 Trades: Staff & family trading accounts with CMC Markets Invest have access to the best brokerage rates in the market - $0 trades for all domestic and international equity orders!

• Continuous learning: Our L&D offering covers both technical and performance training, ensuring you're always learning new skills.

• Unlimited access to a dedicated benefits & wellbeing hub where you can save money through various retailer discounts, and make use of a variety of resources that will enhance your physical and mental wellbeing

• Collaboration: We believe that great things happen when smart people work together, that’s why we’ve made the decision to work five days in the office.

• Office perks: Help yourself to free breakfast cereals, condiments, and coffee to fuel your workday. Our culture club provides opportunities for everyone whether you’re into fitness, pizza making classes, socialising or bringing out your competitive side in trivia or lawn bowls!

What you’ll be working on

• As part of our wider Software Engineering team, under the MarketData squad, you'll be working closely with various other teams, including Business Analysts, Technical Leads, Product Owners and Database Administrators.
• Support the Business Operations team to resolve Marketdata related issues.
• Design and build software solutions for both on-premises and AWS cloud, ensuring scalability, reliability, and maintainability.
• Multi-threaded programming will be central to your work as you optimise for performance and concurrency. You'll craft complex SQL queries and design database schemas that can handle high-volume, low-latency data processing.
• Work independently to resolve technical issues, communicate with vendors and banks for system integrations.
• Conduct technical talks, workshops, and code reviews to improve the skillsets of the team.
• You'll champion testing practices, writing comprehensive unit tests, integration tests, and API tests that has a wide code and function test coverage.
• Support business operations after-hour during allocated On-Call period.

What will help you be successful?

You’re an experienced full-stack engineer who’s confident working across .NET Framework, .NET Core 8+, C#, JavaScript/TypeScript, and SQL. You enjoy building cloud-native solutions on AWS (ECS, Lambda, DynamoDB, CloudWatch) and developing high-performance, multi-threaded applications.

You take ownership of production systems, getting to the root of issues and putting the right monitoring in place to prevent them from happening again. You care about writing clean, efficient code using Entity Framework, solid unit and integration tests, and optimised databases with smart use of stored procedures and indexing. You’re comfortable working with microservices and Git, and you bring a thoughtful, practical approach to designing solutions that balance cost, performance, and maintainability.

You must hold full working rights in Australia to be eligible for this role.

The things we live by

CMC Markets is powered by our people. We are an equal opportunities employer and are committed to creating a diverse and inclusive workplace, where our people feel confident to be themselves, feel valued and are able to do their best work. We don’t just value differences and unique perspectives, we seek them out and we invite them in, because we know it will lead to better outcomes for everyone

Click on the link to find out more about the things we live by at CMC Markets CMC Markets - Culture Video

We’re always on the lookout for great people, so even if you don’t feel you are a 100% fit, apply with your up-to-date CV and we’ll consider you for this role and any other suitable opportunities across the business.

We look forward to hearing from you!

Please be vigilant when applying for jobs online. CMC Markets will never request personal identification details, such as Date of Birth or Tax File Number prior to an offer being made. If your initial application is successful, regardless of whether you've applied directly or through an approved recruiter, you will always liaise with a representative from CMC's Talent Acquisition team. We will only discuss a role you have formally applied for via phone or email (CMC Markets email address); and never via Facebook