AI Engineer

The AI (Artificial Intelligence) Engineer designs, builds and operates production-grade decision engines spanning machine learning (ML) models, deep learning (DL) models, large language models (LLMs) and decision models. The engineer trains, distils and serves proprietary LLMs on company-owned GPU infrastructure, extends a proprietary autonomous multi-agent platform and deploys systems on company premises, in air-gapped client environments and on Oracle Cloud Infrastructure.

The platform serves organisations whose operations depend on real-time, high-stakes decisions in regulated and often air-gapped environments. Models are measured on the operational outcomes they move, and domain rules and expert judgements are encoded into the knowledge graphs and evaluation sets that models and agents consume.

KEY RESPONSIBILITIES

Own mission-critical ML systems from scoping through deployment and monitoring.

Pre-train, post-train, distil and prune proprietary LLMs; evaluate on real cases before release.

Integrate LLMs and decision models with strict safety and output validation.

Build probabilistic forecasting models with calibrated uncertainty.

Architect low-latency inference pipelines; build and administer GPU servers and inference engines.

Construct knowledge graphs with dense and sparse retrieval and real-time pipelines.

Monitor drift, bias, performance degradation and business KPIs beyond accuracy, with automated retraining.

Establish guardrails, audit trails, explainability, access controls and data lineage.

Communicate model risks to stakeholders; maintain model cards, playbooks and incident guides.

KNOWLEDGE AND SKILLS

General Requirements

Bachelor's or Master's degree in Computer Science, Mathematics, Statistics, Data Science or a related field

Professional working proficiency in English, and Bahasa Indonesia or Mandarin - Mandatory

At least four of: a production ML system; a proprietary LLM with measured gains; a knowledge graph of hundreds of thousands of entities; an inference service meeting a latency target on self-managed GPUs; a peer-reviewed publication or thesis; a top five percent international competition placement - Mandatory

Technical Skills

Candidates must demonstrate depth across all of the following areas, not a subset.

ML and DL: gradient-boosted methods, probabilistic forecasting, deep learning for time series - Mandatory

LLM pre-training, post-training, distillation and pruning - Mandatory

Reinforcement learning agents; neuro-symbolic integration of LLMs with formal solvers - Mandatory

Low-latency inference; model export and runtime optimisation; GPU server build and administration - Mandatory

Containerisation and CI/CD on premises, air-gapped and on Oracle Cloud Infrastructure - Mandatory

Real-time pipelines; knowledge graphs with dense and sparse retrieval; graph analytics at scale - Mandatory

Drift and bias monitoring; guardrails, audit trails, explainability and access controls - Mandatory

Unix-like administration across Linux and BSD variants for air-gapped deployment - Mandatory

Rust, Go, or C/C++ with production code delivered - Mandatory

Domain and Delivery Skills

Building libraries, frameworks and tooling onto proprietary training, inference and agent infrastructure - Mandatory

Encoding operational rules and expert judgements as knowledge graphs, evaluation sets and agent tools - Mandatory

Applied ML in a real-time, high-stakes operational domain, evidenced by delivered or published work - Mandatory

ISIXI is a computing company, specialising in Digital Transformation with the design and manufacture of IoT Devices, Cryptography/Security and Advanced Analytics.

We are passionate in Analytics, Statistics, Algorithms, Physical Computing, Web and Architecture.