Senior Full Stack Developer

3 days ago


Sydney, New South Wales, Australia Cox Purtell Staffing Services Full time $900,000 - $1,100,000 per year

Senior Full Stack Developer (NV1 Required)

Large Federal Government Organisation
Location:
Sydney (Hybrid)

Rate:
$900 - $1,100 per day (contract)

A large Federal Government organisation responsible for national interest programs is seeking a Senior Full Stack Developer to extend and support an internal
analytics and decision-support platform
used by operational, analytical and technical teams.

The environment involves
complex data pipelines
,
high-trust access controls
, and information used to support planning and operational decision-making. The focus is on
reliability, clarity of data access, and correctness
, not rapid commercial feature delivery.

You will work as part of a small multidisciplinary team including data engineers, platform engineers, analysts and operational stakeholders.

Primary Focus of the Role

This role is centred on the
data processing layer
, the
compute layer
, and the
mechanisms analysts use to interact with structured datasets
within a controlled environment.

Responsibilities

Data Processing and Services

  • Build and maintain
    Python
    services for data retrieval, transformation and analysis.
  • Expose structured data access via
    FastAPI
    for internal systems, analytical notebooks and dashboards.
  • Optimise performance, caching and query execution for both real-time and batch workloads.

Storage and Analytical Access

  • Work with
    ClickHouse
    or similar analytical databases to support high-volume, high-selectivity querying.
  • Shape schemas and queries for
    fast and interpretable
    analytical access.
  • Support ETL workflows in
    Azure Synapse
    and maintain data lineage and integrity.

Platform Interoperability

  • Integrate compute and storage components with
    identity and access controls
    aligned to NV1 conditions.
  • Contribute to workflows where
    Palantir Foundry
    is used for collaborative modelling or cross-dataset analysis.
  • Maintain stable interfaces and
    clear data contracts
    across services and teams.

Interface and Visual Interpretation

  • When needed, implement
    minimal, functional
    UI components using
    TypeScript
    (SvelteKit/React/Vue).
  • Produce
    analysis-ready
    visualisations using

    ,
    Apache ECharts
    or similar tools.
  • Prioritise
    interpretability and correctness
    over presentation aesthetics.

Engineering Discipline

  • Participate in peer review with an emphasis on correctness, clarity and traceability.
  • Produce documentation that supports
    audit, continuity and controlled handover
    .
  • Work directly with data scientists and operational users to validate assumptions and edge conditions.
  • Contribute to incremental improvements in deployment, testing and release practices.

Required Skills and Experience

Core Technical

  • Strong
    Python
    in production systems.
  • Experience building
    FastAPI
    or equivalent Python API services.
  • Understanding of
    REST
    , distributed service boundaries, and data access layers.
  • Experience with
    ClickHouse
    or similar analytical storage engines.
  • Practical
    SQL
    (schema, indexing, query optimisation).
  • Proficiency in
    TypeScript/JavaScript
    for targeted UI or tooling development.
  • Experience with
    Azure
    ,
    CI/CD pipelines
    , and
    Docker-based deployments
    .

Data and Analytical Environment

  • Comfortable working with
    large, structured datasets
    .
  • Able to collaborate with data scientists and interpret analytical requirements.
  • Experience producing
    interpretable visualisations
    using , Apache ECharts or similar.

Integration and Interoperability

  • Understanding of
    identity and access management
    in secure environments.
  • Experience with or awareness of workflows involving
    Palantir Foundry
    .
  • Ability to maintain clear and stable
    data interface boundaries
    .

Security and Compliance

  • NV1 security clearance is essential.
  • Able to work within
    controlled data environments
    with traceable change controls.
  • Familiarity with the
    ISM
    or similar government security frameworks.

Professional Practice

  • Structured, precise approach to implementation.
  • Communicates clearly across engineering and analytical domains.
  • Works independently while maintaining alignment with architectural direction.
  • Produces documentation intended for continuity and verification.

Desirable

  • Experience in secure Federal Government, defence, intelligence or regulated sectors.
  • Familiarity with operational, critical infrastructure or national-security data workflows.
  • Exposure to model evaluation or analytical query patterns.
  • Relevant Azure or full stack engineering certifications.

Engagement

  • Sydney based
  • Hybrid workplace arrangement
  • $900 - $1,100 per day, depending on experience

Send me your CV for a confidential discussion?

Desired Skills and Experience
TypeScript, JavaScript, Palantir Foundry, Python, FastAPI, REST APIs, NV1 essential



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