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Discipline

AI & Machine Learning

Applied AI engineers who ship production-grade GenAI features. from RAG and agents to evals, guardrails and cost-optimized inference.

LLMs
RAG
LangChain
PyTorch
MLOps
Vector DBs
Evals
Fine-tuning
Tailored consultant

Who you get on day one

Applied AI engineers who ship eval-driven, cost-aware GenAI features into production.

Latest skills
Python
LangGraph
RAG
Evals
Vector DBs
PyTorch
MLOps
Certifications
  • AWS ML Specialty
  • GCP ML Engineer
  • DeepLearning.AI specializations
AI fluency
  • Builds production agents with guardrails and tracing
  • Designs eval harnesses for LLM features
  • Optimizes inference cost via routing and caching

Strategies & playbooks for AI & Machine Learning

Concrete plays our consultants run to resolve the complex problems we see most often in this discipline.

01
Eval-driven GenAI development
Problem

Teams ship LLM features without measuring quality. silent regressions in prod.

The play

Build an eval harness (golden set + LLM-as-judge + human review) before prompt iteration; gate releases on eval scores.

Outcome

Confident model rollouts; regressions caught pre-prod.

02
RAG done right
Problem

First-pass RAG hallucinates and retrieves irrelevant chunks.

The play

Hybrid retrieval (BM25 + vectors), re-ranking, query rewriting, citation-required prompts, and per-doc access controls.

Outcome

Answer quality jumps; trust and adoption follow.

03
Cost & latency optimization
Problem

Inference bill scales linearly with usage; p95 latency too high.

The play

Tiered model routing (small models for easy queries, big for hard), prompt caching, semantic caching, and streaming.

Outcome

30 to 70% cost reduction with maintained quality.

04
Agent guardrails
Problem

Agents go off the rails. wrong tools, infinite loops, prompt injection.

The play

Tool allow-lists, max-step budgets, output schemas, input/output guardrails, full tracing.

Outcome

Production-safe agents with observable behavior.

AI-assisted approach

How AI accelerates AI & Machine Learning

We build with the same AI tooling we deploy. every consultant operates LLMs daily as engineer and as user.

Frontier model orchestration

Multi-model routing across OpenAI, Anthropic, Google and OSS models per task profile.

OpenRouter
LiteLLM
Bedrock
Agent frameworks

Production agents with tracing, evals and human-in-the-loop checkpoints.

LangGraph
CrewAI
OpenAI Agents SDK
Evaluation & observability

Continuous eval pipelines and trace inspection for every prompt change.

LangSmith
Braintrust
Phoenix

Recommended tools we propose as consultants

Curated stack our consultants bring on day one. chosen for fit with your scale, team and existing investment.

Models
  • GPT-5 / Claude / Gemini 2.5 Pro
    Frontier reasoning and multimodal.
  • Llama / Mistral
    Self-hosted when data residency or cost demands it.
Retrieval
  • Pgvector
    Vector search inside Postgres. simplest ops story.
  • Qdrant / Weaviate
    Dedicated vector DBs for high-scale retrieval.
Ops
  • LangSmith
    Tracing + evals for LLM apps.
  • Modal / Replicate
    Serverless GPU inference.
Primer

What this discipline really is

AI & Machine Learning at Codivers spans applied GenAI (RAG, agents, fine-tuning) and traditional ML (forecasting, classification, recommenders). The hard parts are rarely the models. they’re evaluation, data, cost control and integrating safely into real workflows.

GenAI features without evals will silently regress; you only learn from angry users.
Inference cost can dwarf cloud bills if not budgeted per request.
Data quality and access control are now safety controls, not just hygiene.
Agents and tool use multiply both capability and blast radius. guardrails are mandatory.

Key areas inside AI & Machine Learning

1
Applied GenAI

RAG, agents, structured outputs, function calling. applied to real product surfaces.

RAG patterns
Agentic workflows
Function calling
Structured outputs
2
Evaluation & safety

Eval harnesses, regression suites, guardrails, hallucination detection, red-teaming.

Ragas / Braintrust
LLM-as-judge
Guardrails
Red-teaming
3
MLOps

Model registry, feature store, training pipelines, monitoring drift and performance.

MLflow
Feature stores
Drift monitoring
Shadow deployment
4
Classical ML

Forecasting, classification, recommenders, anomaly detection. often the right answer.

XGBoost
Time series
Recommenders
Anomaly detection
5
Cost & latency engineering

Caching, model routing, distillation, prompt compression and budget alerts.

Semantic caching
Model routing
Distillation
Token budgets

Maturity model. where are you today?

Level 1. Ad-hoc

POCs in notebooks, no evals, prompts in code comments.

Level 2. Repeatable

Some prompts versioned, manual evals, basic monitoring.

Level 3. Defined

Eval harness in CI, guardrails, cost dashboards, structured outputs.

Level 4. Optimized

Continuous evals, automatic regression gates, model routing, model risk management.

Best practices we apply

  • No evals = no AI feature in production. Period.
  • Track cost per request and per feature; alert on regressions like you do for latency.
  • Use structured outputs (JSON schemas) wherever the downstream consumer is code.
  • Treat prompts and tools as code. versioned, reviewed, tested.
  • Start with the smallest model that meets the eval bar; scale up only with evidence.

Common pitfalls & how we fix them

Vibes-based evaluation
Fix: Build a 100 to 1000 example eval set and a CI gate from day one.
Single huge model for everything
Fix: Route by task; use small/cheap where possible.
Prompt injection ignored
Fix: Treat all model output as untrusted; apply allow-lists and sandboxing.
PII in prompts/logs
Fix: Pre-prompt PII redaction + log scrubbing + retention policy.

Outcomes you can expect

  • Production-grade GenAI features
  • Eval-driven model rollouts
  • Cost-optimized inference
  • Safe, monitored deployments

Engagement models

GenAI feature build
Design and ship a customer-facing GenAI capability end-to-end.
RAG platform
Retrieval pipeline, vector store and evaluation harness.
MLOps foundation
Training, deployment and monitoring infrastructure for ML models.

KPIs we commit to

Tracked per release
Eval accuracy
Optimized per request
Inference cost
Monitored & gated
Hallucination rate
4 to 8 weeks
Time-to-feature

Tools & technologies

LLM providers
OpenAI
Anthropic
Google
Mistral
Bedrock
Frameworks
LangChain
LlamaIndex
DSPy
Haystack
Vector & retrieval
Pinecone
Weaviate
Qdrant
pgvector
Training & MLOps
PyTorch
JAX
Hugging Face
MLflow
Weights & Biases
Evals & safety
Ragas
Braintrust
Guardrails
NeMo Guardrails

What you get

  • GenAI feature design with guardrails
  • RAG pipeline with eval harness
  • Cost & latency budget per feature
  • Model monitoring (drift, hallucination, PII)
  • Fine-tuning / RLHF where justified
  • MLOps platform for training & serving

How we deliver

  1. 1
    Discovery
    Workshops to scope outcomes, constraints, success metrics and risks.
  2. 2
    Match
    Ranked consultants with score, availability and pre-vetted skills.
  3. 3
    Pre-onboarding
    Stack simulation aligns the consultant with your conventions before day one.
  4. 4
    Delivery
    Two-week cadence with transparent metrics, demos and async updates.
  5. 5
    Knowledge transfer
    Documentation, runbooks and pairing so capability stays in-house.

Roles available on the bench

RoleLevelIndicative rate
Applied AI EngineerSeniorFrom €750/day
ML EngineerSeniorFrom €750/day
AI ArchitectStaffFrom €950/day

Rates are indicative; final pricing depends on seniority, location and engagement length.

Common stack overlap

Python
TypeScript
PyTorch
Kubernetes
AWS
GCP

Certifications on the bench

  • AWS ML Specialty
  • GCP ML Engineer
  • Hugging Face Certified
Case study

Support automation with RAG + agents

Problem

60% of support tickets were repetitive, response time averaged 8h.

Solution

RAG over knowledge base + agent workflow with tool use, deployed with eval gates and PII filters.

Result

Auto-resolved 47% of tickets, response time down to 12 min, CSAT held steady.

Why teams choose Codivers

Pre-vetted consultants graded on skills, domain depth and soft skills.
Pre-onboarding simulation = day-one productive engineers.
Transparent scorecards, weekly health checks and replaceable on demand.
Senior bench across 8 disciplines. scale up or rebalance without re-hiring.

Glossary. speak the language

RAG
Retrieval-Augmented Generation. ground LLM answers in retrieved context.
Eval harness
Automated suite scoring model output against expected behaviour.
Drift
Change in input data distribution over time, degrading model performance.
Prompt injection
Attack where untrusted input overrides system instructions.
Distillation
Training a smaller model to mimic a larger one for cost/latency.

Recommended reading

Anthropic. Building Effective Agents
Article
Pragmatic patterns for agentic systems.
Designing Machine Learning Systems (Huyen)
Book
MLOps and production ML reference.
OWASP Top 10 for LLM Applications
Reference
The current canonical security checklist for LLM apps.

Frequently asked

Which LLM providers?
OpenAI, Anthropic, Google, Mistral and open-source models via vLLM or Bedrock.
Do you handle safety?
Yes. guardrails, evals, red-teaming and PII handling are core to delivery.

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