Job Description

Full Stack Engineer | TypeScript, Node.js, React, AWS and AI

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Location: Sydney, NSW

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Employment type: Full time

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Working arrangement: On site, five days per week

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Experience required: Minimum 4 years of commercial software development experience

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Applications from candidates who do not meet these requirements may not progress to the next stage.

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Important information before applying

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This is a hands on, mid level software engineering role.

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- You are currently based in Sydney, or are able to commute reliably to our Sydney office five days per week.
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- You have current Australian working rights.
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- You have at least 4 years of professional commercial software development experience.
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- You have recent commercial experience with Node.js and Express.js or NestJS.
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- You have recent commercial experience with React or Next.js.
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- You have experience developing and maintaining REST APIs, databases, authentication systems and third party integrations.
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- You have practical experience deploying and supporting production applications in AWS.
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- You are comfortable working across both back end and front end development.
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- You have experience taking ownership of an existing application or unfamiliar codebase.
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This role is not suitable for graduate developers, front end only developers, data analysts, project managers, candidates seeking a fully remote position, or applicants without commercial TypeScript and Node.js experience.

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Applications that do not clearly demonstrate the mandatory requirements may not progress to the next stage.

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About KazGard

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KazGard develops practical software and AI solutions for organisations operating in regulated and complex industries.

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Our products support areas including enterprise compliance, audit, disability services, membership management, document processing and business process automation.

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We are looking for a capable and motivated Full Stack Engineer who can take ownership of existing applications and contribute to the development of current secure, reliable and maintainable products.

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About the role

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You will work across the full application lifecycle, from understanding business requirements and reviewing existing codebases, through to development, testing, deployment and production support.

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This is a role for an engineer who is comfortable investigating problems independently, working through complex business logic and taking responsibility for delivering complete solutions.

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Your strongest skills may be in back end development, but you must also be comfortable implementing and maintaining front end functionality.

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You will collaborate with software engineers, IT, project management, UX and UI designers and client stakeholders.

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Key responsibilities

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- Develop and maintain full stack web applications using TypeScript, Node.js and React based technologies.
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- Take ownership of existing software products following a structured technical handover.
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- Review unfamiliar codebases, diagnose issues and implement maintainable solutions.
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- Design,



develop and maintain REST APIs, authentication systems, data models and third party integrations.
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- Implement complex business logic, calculations, validation rules, permissions and workflow automation.
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- Build responsive and accessible user interfaces from established UX and UI designs.
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- Integrate AI and large language model services into practical business applications.
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- Develop document processing, contextual retrieval, Retrieval Augmented Generation and structured output capabilities.
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- Improve AI generated outputs for relevance, accuracy, consistency and reduced duplication.
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- Integrate applications with third party APIs, webhooks, Microsoft 365 and enterprise systems.
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- Support automated testing, deployment, monitoring, troubleshooting and production releases.
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- Maintain transparent technical documentation, including README files, architecture notes, technical decisions and deployment instructions.
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- Communicate technical decisions, risks, limitations and dependencies clearly to both technical and non technical stakeholders.
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You should be able to debug issues across multiple application layers, understand unfamiliar code and identify the underlying cause of technical problems.

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Back end development

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Commercial experience with Node.js and Express.js or NestJS.

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You must be comfortable designing and maintaining:

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- REST APIs
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- Authentication and authorisation systems
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- Third party integrations
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- Business logic
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- Calculations and validation rules
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- Complex conditional workflows
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- Error handling and production troubleshooting
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Commercial experience with React or Next.js.

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You must be able to implement responsive, accessible and maintainable interfaces from established designs.

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You should understand component architecture, state management, API integration, form validation, error handling and cross device behaviour.

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Databases

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Hands on experience with MongoDB or another non relational database.

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You should be able to design structured and maintainable data models.

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Experience with relational databases and SQL is advantageous.

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AWS and production delivery

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Practical experience deploying, maintaining and supporting production applications in AWS.

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You should understand:

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- Source control and branching practices
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- Continuous integration and deployment
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- Production releases
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- Logging and monitoring
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- Troubleshooting
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- Backup and recovery
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AI and LLM integration

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Experience integrating AI or large language model services through APIs.

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You should have a practical understanding of:

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- Context management
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- Retrieval Augmented Generation
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- Structured outputs
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- Evaluation of AI generated results
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- Improving relevance, accuracy and consistency
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Experience with embeddings, vector databases, AI agents or MCP integrations is highly regarded.

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Software quality and documentation

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You should have a practical approach to automated testing, code reviews, debugging and software quality.

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You must be able to document your work clearly enough for another engineer to understand, maintain and extend it.

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Security expectations

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Our applications may process confidential, financial, operational and personal information.

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Security awareness must be part of how you design, develop, test and review software.

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You should understand the fundamentals of:

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- Authentication and role based access control
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- Data privacy and appropriate handling of sensitive information
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- Encryption in transit and at rest
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- Secrets and credential management
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- Logging and auditability
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- Dependency and vulnerability management
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- Backup and recovery
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Deep cybersecurity specialisation is not required, but experience with OWASP, ISO or NIST practices is advantageous.

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Highly regarded experience

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Experience in one or more of the following areas would be advantageous:

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- Enterprise compliance, audit or governance platforms
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- NDIS, disability services, healthcare or regulated industries
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- Retrieval Augmented Generation
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- Embeddings and vector databases
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- Document processing and information extraction
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- MCP integrations
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- OAuth, Single Sign On or equivalent authentication technologies
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- Workflow, case management or approval systems
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- Automated quality assurance and AI evaluation frameworks
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- Accessibility standards, including WCAG
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- Cybersecurity or secure cloud architecture
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- Microsoft Power Apps and Power Automate
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- Microsoft 365 integrations
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- Python
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How you will work

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We are looking for someone who takes ownership rather than waiting for individual tasks to be assigned.

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You should be able to:

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- Investigate technical problems independently
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- Ask precise and relevant questions
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- Identify risks and dependencies early
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- Translate complex requirements into maintainable software
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- Communicate progress clearly
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- Follow work through from requirements to production
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- Take responsibility for the quality and reliability of your work
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- Work on practical software and AI solutions used by real organisations.
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- Take meaningful ownership of products and technical decisions.
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- Contribute across the full application lifecycle.
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- Solve complex problems involving AI, documents, automation, compliance and workflows.
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- Work directly with a multidisciplinary Sydney based team.
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- Help improve our software development, testing, documentation and security practices.
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- Join a growing organisation with opportunities to expand your technical responsibilities.
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Join KazGard and help us build secure, reliable and effective software solutions for complex real world challenges.

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📌 Full Stack Engineer | TypeScript, Node.js, React, AWS and AI | Sydney Based (New South Wales)
🏢 KazGard
📍 New South Wales