Insights

DeltaDex Technologies on cognitive systems in production.

Engineering notes and strategy briefings from the DeltaDex Technologies practice — spanning MLOps platform design, generative AI governance, and the specialised work authorisation questions that shape how advanced AI teams are built.

Work Authorization

STEM OPT I-983 Formal Training Plans for Machine Learning Researchers

How to build a defensible Form I-983 training plan for machine learning researchers, with measurable learning objectives, supervision structure and evaluation cadence.

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Work Authorization

CPT Work Authorization for Graduate AI and Data Science Engineers

What integral-to-curriculum really means for graduate AI placements, and how to structure CPT engagements so the academic link is documented from day one.

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Work Authorization

H-1B Specialty Occupation Proof for Deep Learning and NLP Specialists

Building the specialty occupation record for deep learning and NLP roles: degree nexus, industry evidence and job descriptions that read like engineering.

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Immigration Strategy

Navigating O-1A and EB-1A Visa Pathways for AI Innovators and Researchers

A comparison of O-1A and EB-1A for AI researchers, including which evidentiary criteria map cleanly onto modern machine learning careers.

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Immigration Strategy

Prevailing Wage Nuances for High-Tier Data Science and MLOps Roles

Occupational classification, wage levels and alternative surveys — why senior data science and MLOps roles are so often mispriced in wage determinations.

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MLOps

Solving Model Drift: Continuous Training Pipelines in Production MLOps

Detecting, diagnosing and remediating drift with continuous training pipelines that retrain on evidence rather than on a calendar.

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Generative AI

Optimizing Large Language Model Inference Costs for Enterprise Deployments

Where enterprise LLM spend actually goes, and the levers — routing, caching, quantisation, batching — that reduce it without degrading quality.

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Data Engineering

Feature Store Architecture: Centralizing Data Inputs for Machine Learning

How offline and online stores, point-in-time correctness and a shared registry eliminate training-serving skew across a model portfolio.

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Governance

Zero-Trust Data Governance for Generative AI Corporate Integrations

Applying zero-trust principles to enterprise generative AI: identity-scoped retrieval, prompt boundaries, egress control and audit-grade logging.

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Applied AI

Real-Time Fraud Detection Systems: Architecting Low-Latency Neural Networks

Designing sub-hundred-millisecond fraud decisioning: streaming features, hybrid rule and model scoring, extreme class imbalance and cost-based thresholds.

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