Software Engineer

McKkr's Training & Internships; North Sydney Council; On-site; AUD 120,000 - 160,000; Full time

Job summary

McKkr's Training & Internships is seeking a skilled backend engineer to design and implement scalable services, APIs, and data pipelines in Sydney. You will integrate AI models, collaborate with product and AI teams, and drive secure, high-performance software across the stack.

The role emphasizes building robust backend architecture, contributing to product features from discovery to release, and mentoring juniors while ensuring code quality and maintainability in a fast-paced startup

Qualifications

• A bachelor’s degree or higher qualification.
• At least five years of relevant experience and/or vendor certification may substitute for the formal qualification.

Responsibilities

• Design, build, and maintain scalable backend services, APIs, and data pipelines.
• Integrate AI/ML models into consumer-facing products.
• Collaborate with product and AI teams to deliver personalised AI experiences.
• Develop and optimize backend services, APIs, and databases for performance and reliability.
• Ensure secure, scalable backend services and APIs; follow best practices for testing and deployment (CI/CD).
• Troubleshoot and resolve bottlenecks as the company scales.
• Prepare technical documentation and handover knowledge across the team.
• Assist in debugging and resolving production issues across the stack.

Skills

TypeScript

Backend development

APIs

CI/CD

Security

Performance optimization

Code reviews

Mentorship

Education

Bachelor's degree or higher qualification

Tools

Databases

CI/CD tooling

Cloud services

Job description

McKkr's Training & Internships – North Sydney NSW

Core Flow AI Pty Ltd is an Australian technology company operating in the artificial intelligence sector. The business develops AI-powered technology solutions, including software, automation and intelligent systems to support business operations and product development. Core Flow AI Pty Ltd is one of the fastest-growing startups globally, serving 20 million users in our first year. We are an in-person company based in Sydney, Australia.

Role Overview

The position involves designing and developing scalable backend services, APIs and data pipelines, implementing new product features, integrating AI models and third-party technologies, and contributing to system architecture, performance, security and reliability. The role is focused on delivering personalised, interactive AI experiences to the company's 20 million users, supported by broader full-stack product development.

Key responsibilities

• Integrate advanced AI/ML models (chat, image, and video generation) into consumer-facing products.
• Collaborate with product and AI teams to deliver personalised, interactive AI experiences.
• Design and build the backend services, APIs, and data pipelines that serve AI/ML models in production.
• Experiment with and evaluate new AI technologies (e.g., generative AI models, AI/ML tooling, cloud AI services) to drive product innovation.

2. Product Development & Feature Implementation

• Design, build, and maintain scalable software solutions to support the startup’s core product and user needs.
• Collaborate with product managers and designers to translate requirements into functional, efficient code.
• Rapidly prototype and iterate on features based on user feedback and business priorities.
• Develop and maintain high‑quality, scalable software and services using TypeScript.
• Contribute to the full product lifecycle: from discovery and UX research to development, API integration, and release.
• Develop and optimize backend services, APIs, and databases to ensure performance and reliability.
• Design and implement secure, scalable backend services and APIs.
• Implement best practices for code maintainability, testing, and deployment (CI/CD).
• Troubleshoot and resolve bottlenecks in infrastructure as the company scales.
• Ensure code quality, application security, and performance across core systems.

4. Cross-Functional Collaboration & Support

• Work closely with frontend engineers to integrate UI components with backend logic.
• Assist in debugging and resolving production issues across the stack.
• Research and integrate third‑party tools, libraries, or frameworks to accelerate development.
• Prepare technical documentation and support knowledge handover across the engineering team.

Qualification requirements

• A bachelor’s degree or higher qualification.
• OR
• At least five years of relevant experience and/or relevant vendor certification may substitute for the formal qualification.

Experience & Other Requirements

• At least 1 year of relevant experience in a similar field.
• Database management & query optimization.
• Cross-functional leadership.
• Engineering mentorship: secure coding, API integration, performance best practices.

Salary and location

The duties will be performed at the company’s Sydney office at Level 6, 77 Pacific Highway, North Sydney NSW 2060. The attractive salary is offered per annum, exclusive of superannuation, with compulsory superannuation contributions paid in addition.

Only eligible and short-listed applicants will be considered.