Job Description
This range is provided by Intrinzic. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.
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Base pay range
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A$******/hr - A$******/hr
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Direct message the job poster from Intrinzic
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Co-Founder & Director at Intrinzic | DevOps / Cloud / SRE
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$900-$****/day (incl. super) + GST
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Greenfield Trading Platform Build
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Intrinzic are proud to partner exclusively with an exciting tech start-up in Sydney CBD, who are building out a trading platform from scratch. The company is backed with a wealth of experience in this sector and are looking for a Full-Stack Engineer on a 6-month contract, to compliment their Engineering Team that has quickly grown to 15.
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About The Role
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We are looking for a Full-Stack Engineer who understands the reasoning behind frameworks, not just how to use them. You will work across both the front-end and backend of the platform, building scalable, secure, and performant systems that power real-time financial applications.
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You have solid experience in Node.js back-end development paired with strong front-end skills. You enjoy tackling complex product challenges and are confident shaping both architecture and user experience from the ground up.
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In this role, you'll work across our entire product suite—including payments, registration, trading, and internal tools—taking full ownership from system design through to delivery.
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Build Tools: Vite, Webpack
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Back-End: Node.js (Express or similar), REST APIs, GraphQL
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Testing: Playwright, Jest
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Infrastructure: AWS (Lambda, API Gateway, CodeBuild)
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Key Responsibilities
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Full-Stack Development: design, develop, and maintain scalable apps across front and back end
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API Development - craft and optimize secure Node.js REST/GraphQL APIs and integrate with third-party services
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Database Design - implement and fine-tune relational and NoSQL schemas for scale and performance
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Front-End Development - build responsive, high-performance UIs for financial apps and tools
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Tech Selection - recommend and implement technologies across the stack with scalability, security, and UX in mind
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Collaborate & Lead - work cross-functionally, contribute to agile processes, and drive projects end-to-end
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Core Projects
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Payments Gateway: secure APIs + React front-end for multi-vendor payments and account flows
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Registration & Accounts: end-to-end sign-up, login, KYC workflows & account dashboards
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Back Office Tools: internal apps for customer service, reconciliation & workflows
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Key Experience
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Deep React experience (plus comfort with other frameworks)
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Database experience (PostgreSQL, DynamoDB, or similar)
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Familiarity with build tools, testing frameworks & CI/CD pipelines
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Experience with AWS (Lambda, API Gateway, RDS, S3)
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Bonus: containerization (Docker) and microservices
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If you're an Engineer who embraces taking ownership, accountability and initiative to solve technical problems and produce high-quality work, in a fast-paced environment, this could be for you!
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To submit your profile for consideration or for further information on this role, please click APPLY or email
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Seniority level
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Seniority level
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Employment type
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Job function
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📌 Full-Stack Engineer - 6-Month Contract (New South Wales)
🏢 Intrinzic
📍 New South Wales