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Models that survive production

Machine Learning Development

A model that scores well in a notebook and a model that holds its performance for a year in production are different engineering achievements. We are hired for the second.

Engagements from $10,000 to $100,000+Serving USA · UAE · UK · Canada · EuropeYou own the code and the IP
The problem

Why models degrade after launch

Three causes, all preventable, all commonly ignored.

Training-serving skew: features computed one way in training and another way in production. We prevent it by using one feature pipeline for both, which sounds obvious and is skipped constantly.

Drift: the world changes and yesterday's patterns stop holding. We monitor input distributions and live performance against outcomes as they arrive, and alert before anyone in the business notices something is off.

Silent failure: a model returning plausible but wrong predictions produces no error and no alert. Monitoring against realised outcomes is the only defence.

  • One feature pipeline shared by training and serving
  • Input drift and prediction drift monitored continuously
  • Live performance tracked against realised outcomes
  • Alerting before business impact, not after
  • Challenger models validated before promotion
  • Single-step rollback to the previous version
Use cases

Model types we build

Classification

Churn, risk, eligibility, categorisation and routing.

Regression

Pricing, valuation, duration and quantity prediction.

Time series forecasting

Demand, capacity and revenue over a horizon.

Anomaly detection

Fraud, faults and outliers in transactions and telemetry.

Recommendation

Product, content and next-best-action ranking.

Clustering and segmentation

Customer and behavioural segmentation for targeting.

Architecture

Model lifecycle

Eight stages. Most failed ML projects skipped one of the last three.

01 Data preparationCollection, cleaning, deduplication, leakage checks and a documented train/validation/test split.
02 Feature engineeringDomain features built with your subject experts — consistently the highest-leverage stage.
03 Model developmentBaselines first, then complexity only where it measurably earns its place.
04 TrainingCross-validation, hyperparameter search and class-imbalance handling, all versioned and reproducible.
05 EvaluationMetrics chosen for your business cost of error, not for the leaderboard. Slice analysis by segment.
06 DeploymentBatch or real-time serving with the same feature pipeline used in training, to prevent skew.
07 MonitoringInput drift, prediction drift and live performance against outcomes as they arrive.
08 RetrainingA defined cadence and trigger conditions, with challenger models validated before promotion.
  • Training and serving share one feature pipeline
  • Every experiment tracked and reproducible
  • Business cost of false positives versus false negatives set before modelling
  • Rollback to the previous model version in one step
How we deliver

Ten stages from first call to a system your team trusts

Every AI engagement runs this sequence. Small projects compress stages; regulated projects expand them. Nothing gets skipped silently.

Discovery

A working session with your operations and engineering leads to map the process, the systems it touches, and where the cost actually sits.

AI Opportunity Assessment

We score candidate use cases on data readiness, volume, error tolerance and payback, then rank them. Some come back "do not use AI for this" — you get that answer too.

Solution Architecture

Model selection, retrieval design, tool boundaries, data flow, failure modes and hosting topology, documented before code.

Proof of Concept

A narrow build against your real data to prove accuracy on the cases that matter, typically 2–4 weeks. Go / no-go decision at the end.

MVP

One workflow, end to end, in the hands of real users. Evaluation sets and quality thresholds are defined here, not retrofitted.

Production Development

Hardening: error handling, retries, fallbacks, cost controls, rate limits, observability, and a human escalation path for every automated decision.

Integration

Wiring into your CRM, ERP, HRMS, data warehouse, ticketing and messaging channels through APIs, webhooks and event queues.

Security Testing

Prompt-injection testing, access-control verification, PII handling review, dependency scanning and penetration testing before go-live.

Deployment

Staged rollout on your cloud or ours, with CI/CD, versioned prompts and models, and rollback in place from day one.

Monitoring & Optimization

Quality dashboards, drift detection, cost-per-transaction tracking and a retraining or re-prompting cadence agreed in writing.

Security & Governance

Security-conscious architecture, from the first design review

Enterprise AI fails on governance more often than on models. Every system we build is designed to support enterprise security requirements and to give your risk team answers rather than assurances.

Data privacy & residency

Your data stays in the region and tenancy you nominate. We architect for no-training-on-your-data configurations and document exactly which vendor endpoints see which fields.

Role-based access control

Retrieval and tool permissions inherit your existing roles. A user cannot surface a document through the AI that they could not open directly.

Authentication & authorization

SSO via OIDC/SAML, short-lived tokens for agent tool calls, and per-tool scopes so an agent holds the narrowest possible privilege.

Encryption

TLS in transit, AES-256 at rest, managed keys via your cloud KMS, and encrypted vector stores for embedded content.

API security

Gateway-level authentication, signed webhooks, IP allowlisting, request validation and quota enforcement on every exposed endpoint.

Audit logging

Every prompt, retrieval, tool call, model version and human override is logged with a trace ID, so any output can be reconstructed months later.

Data isolation

Per-tenant separation at the storage, index and key level for multi-entity groups and regulated environments.

Secure prompt handling

System instructions are server-side, user content is treated as untrusted input, and we test against prompt-injection and tool-abuse patterns.

PII protection

Detection, masking or tokenisation of personal data before it reaches a model, with configurable redaction policies per field.

Human approval workflows

High-impact actions — payments, refunds, contract sends, record deletion — route to a named approver instead of executing autonomously.

Monitoring & anomaly detection

Alerting on unusual tool usage, cost spikes, refusal rates and quality regressions.

Rate limiting & abuse control

Per-user and per-tenant throttles, spend caps and circuit breakers so a runaway loop cannot become a runaway invoice.

Secure deployment

Private networking, secrets in a managed vault, immutable builds, dependency scanning, and infrastructure as code.

On compliance: Ezulix designs compliance-ready architecture aligned to frameworks such as GDPR, HIPAA and SOC 2 control objectives. Certification status for any specific standard should be confirmed directly with our team before contract. [VERIFY: current Ezulix certifications]
Reference builds

The kind of systems we are asked to build

Representative scopes drawn from the categories Ezulix works in. Client names and outcome figures are withheld until verified.

Customer Support · SaaS

AI Customer Support Platform

Tier-1 ticket deflection using RAG over product documentation and past resolved tickets, with confidence-gated handoff to human agents and full conversation audit.

[CASE STUDY METRIC]Deflection rate
[PROJECT RESULT]First-response time
Revenue · B2B

AI Sales Agent

An agent that qualifies inbound leads against ICP criteria, enriches company data, writes a researched first-touch email and books directly into rep calendars.

[CASE STUDY METRIC]Speed to lead
[PROJECT RESULT]Meetings booked
Knowledge · Enterprise

Enterprise RAG Knowledge Assistant

Permission-aware assistant over SharePoint, Confluence and a contract repository, with hybrid retrieval, re-ranking and mandatory source citation on every answer.

[CASE STUDY METRIC]Search time saved
[PROJECT RESULT]Answer accuracy
Illustrative scopes. These are hypothetical/demo project shapes, not published client work. Metrics are placeholders — replace [CASE STUDY METRIC] and [PROJECT RESULT] with signed-off figures, and add [CLIENT NAME] only where you hold written permission.
FAQ

Questions enterprise buyers ask us first

How much data do we need for machine learning?
It depends on problem complexity and signal strength. Some tabular classification problems work usefully with a few thousand labelled examples; rare-event prediction needs enough positive cases specifically, which is usually the binding constraint. We assess your data during discovery and will tell you plainly if there is not enough.
What accuracy will the model achieve?
We do not quote a number before seeing data, and neither should anyone else. We establish a simple baseline first, then measure improvement over it on a held-out set. The relevant question is usually whether the model beats your current process, not whether it hits an abstract threshold.
What does a machine learning project cost?
A proof of concept on existing data typically starts around $15,000. Production systems with pipelines, serving, monitoring and retraining infrastructure run $40,000 to $100,000+. Data preparation is usually the largest share of effort.
Do you use classical ML or deep learning?
Whichever performs better on your problem, which for structured tabular data is very often gradient-boosted trees rather than a neural network. We start with strong simple baselines and add complexity only where it measurably earns its place.
Project brief

Talk to an AI solution architect

No junior sales rep, no discovery deck. The person on the call is the person who will design the system.

  • Response within one business day
  • Mutual NDA signed before detailed discussion
  • Written scope, one price, one delivery date
  • You own all source code, models and IP at launch
Email: sales@ezulix.com [VERIFY]

We use these details only to prepare your scope and estimate. Your idea stays yours — mutual NDA before any detailed discussion.

Next step

Bring us the process that is costing you the most.

Book a 45-minute call with a solution architect. You leave with a use-case shortlist, a reference architecture sketch and a realistic build envelope — whether or not you build it with Ezulix.