In-Demand Javascript developer Jobs in Padstow, Nsw

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Performance Test Engineer - 18 month maximum contract role

CMC Markets -
Sydney NSW

Apply Now

Job Details

Full-time

Benefits

Extended annual leave
Free food

Qualifications

CI/CD
Cloud architecture
RESTful API
Responsive web design
Performance testing
Functional testing
AWS
REST
Scripting
GitHub
APIs
Financial services
JSON
HTTPS
Communication skills

Full Job Description

Introduction

We are looking for an experienced Performance Test Engineer to join our Engineering & Architecture, Core Services team on an 18 Month Maximum Term Contract. This is a newly created position, you will be building a performance and load testing framework and defining the overall test strategy. You will be defining and implementing comprehensive performance testing strategies, including best practices and standards.

You will be responsible for developing and executing a range of tests, including load, stress, endurance, and scalability testing. Analysing system behaviour under load and providing actionable insights to improve performance Collaborating with engineering teams to integrate performance testing into the development lifecycle.

This is a hands on engineering role where you can take ownership of your work, contribute to building from the design to execution phase, make technical decisions, and help build a strong, scalable platform that supports our trading platform.

Why you'll like working here

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

Leave benefits: Accrue 5 additional annual leave entitlements each year called My Days, as well as enjoying 5 extra annual leave days once you pass 12 months. 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?

This role focuses on performance testing of C#/.NET applications deployed in AWS, using k6 as the primary performance testing tool. You will work closely with developers, architects, and DevOps teams to ensure our platforms are scalable, reliable, and performant under real-world load. You will also play a key part in building platforms from scratch, ensuring they are designed and tested to perform effectively under real world conditions.

You’ll lead performance and non-functional testing across critical trading platforms, ensuring they remain scalable, resilient, and responsive. You will design, execute, and continuously improve performance testing for high-availability systems across both on premise and cloud-based environments.

Design, develop, and execute performance, load, stress, endurance, and scalability tests using k6
Build and maintain reusable performance test frameworks and scripts
Analyse test results to identify bottlenecks across application, database, and infrastructure layers
Collaborate with developers to diagnose performance issues and validate fixes
Test cloud-native architectures deployed in AWS
Integrate performance tests into CI/CD pipelines
Define and monitor performance KPIs, SLAs, and non-functional requirements
Produce clear performance test reports with actionable recommendations
Support capacity planning and performance tuning initiatives
Advocate for performance testing best practices across teams

This is a key role in shaping how performance quality is built and measured across our Trading platform. Offering the opportunity to make a real impact from the ground up. You will be an integral part of the team, contributing to both the enhancement of our existing platform and the development of new capabilities.

What will help you be successful?

Must have 5+ years of experience as a Performance Tester
Strong experience in performance and non-functional testing
Must have strong experience with K6 (JavaScript-based scripting)
Experience testing C# / .NET applications
Solid understanding of AWS cloud architecture and distributed systems
Experience with REST APIs, HTTP protocols, and JSON
Ability to analyse performance metrics (CPU, memory, latency, throughput, error rates)
Familiarity with CI/CD tools (e.g. GitHub Actions)
Strong problem-solving and communication skills, able to communicate effectively with stakeholders
An understanding of financial services or stockbroking platforms will be beneficial, but not essential

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

Apply Now

Refine Your Search

javascript developer jobs in padstow, nsw

Performance Test Engineer - 18 month maximum contract role

Senior Software Engineer II

Senior Software Engineer II

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Delivery Consultant: Agentic AI FullStack SDE, AWS Professional Services

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