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Appsierra · AI & ML engineering

AI that survives contact with production.

Most companies do not need a moonshot. They need the demo that impressed everyone to become a system that holds up under real traffic, real costs and a real audit — which is a different engineering problem, and the one this pod is built for.

Sold by Appsierra AI & ML engineering Reply in one business day
6 weeks
to a first agentic release

Four weeks for generative and LLM work — the only published time-to-first-release on the engineering side.

3
frameworks prepared for

The EU AI Act, the NIST AI Risk Management Framework and ISO/IEC 42001, which the governance work maps evidence to.

0
of your data trains a shared model

Stated in the group security ledger, and the reason self-hosted and VPC-isolated deployment is offered.

7 days
to a productive pod

Every engineer is evaluated through the group's own platform before they reach you.

01

What AI & ML engineering is

Appsierra designs, builds and operates production LLM and ML systems: agents and copilots that use tools under human supervision, retrieval pipelines grounded in your own data, fine-tuned or adapted models, and the LLMOps layer that keeps all of it accurate, fast and affordable. The pod is an AI engineer, an SDET and a platform engineer — the test engineer is in it by default, because the evaluation gate has to be staffed rather than assumed.

The distinctive deliverable is the control plane. Agents ship with an Agent Operation Centre: dashboards to monitor every run, inspect the decisions and tool calls, replay traces, set limits, and pause or roll back behaviour. Around them sit scoped permissions, typed and validated tool inputs and outputs, and guardrails tested under adversarial pressure — prompt injection and jailbreak red-teaming, not a policy document.

Quality is measured, not asserted. Evaluation sets are built from your real prompts and edge cases, versioned like code, scored automatically and reviewed by people, then wired into CI as a gate. Agentic work is held to task success rate, generative work to a faithfulness score, and governance work to gate pass rate. Published time to a first release is six weeks for agentic systems and four for generative ones.

02

What it does

What the pod actually hands over. Retrieval quality and the evaluation harness are where most of the value sits, and both are unglamorous.

01

RAG pipelines that retrieve well

Document pipelines, a chunking strategy chosen rather than defaulted, embeddings and a tuned vector store on pgvector, Pinecone or Weaviate. Good retrieval is usually the single biggest driver of answer quality, ahead of the model choice.

02

Agents with stop conditions

Goals, a reasoning loop, tools, memory and — critically — explicit stop conditions, shipped inside a maintainable codebase. Multi-agent work runs a planner, a researcher and a tool-runner under an orchestrator with shared memory and defined handoffs.

03

Agent Operation Centres

A control plane for running agents: monitor every run, inspect decisions and tool calls, replay a trace, set limits, and pause or roll back behaviour. No other service in the group ships an operational surface like this.

04

Fine-tuning, when it earns it

Dataset preparation, parameter-efficient tuning with LoRA, and a rigorous before-and-after evaluation so the adapted model is genuinely better rather than merely different. RAG is the default where knowledge changes; tuning is for behaviour the base model does not have.

05

The LLMOps layer

Versioned prompts and models treated as engineering artefacts, automated evaluation gates in CI, observability across quality, latency and token spend, safe rollback, and token budgets set per feature so cost is a design constraint rather than a monthly surprise.

06

Guardrails and red-teaming

Scoped permissions, input filtering, output validation and policy enforcement, tested by deliberately trying to break the system with prompt injection, jailbreaks and edge cases before real users or attackers find them.

03

How it runs

The engagement shape is the same across the engineering practice; what changes here is what gets measured.

  1. A free thirty-minute scoping call

    What exists, what it has to do, and which of the three shapes it is: a retrieval problem, a behaviour problem or a governance problem. Pricing is quoted after this, once the scope is real.

  2. Pod matched in a week

    An AI engineer, an SDET and a platform engineer, drawn from a pre-vetted bench and productive in about seven days. You interview them first, and nothing is subcontracted without your written consent.

  3. Build the evaluation set first

    Golden datasets from your real prompts and edge cases, versioned, with automated scoring and human review. Without this there is no way to tell whether the next change helped, which is why it comes before the model work.

  4. Ship behind a gate

    The pipeline, prompts, retrieval and guardrails go in together with the evaluation gate in CI, so a release either passes on score movement or does not go. Cost and latency are observed from the first deploy, not after the first bill.

  5. Operate, then hand over

    The Agent Operation Centre, the runbooks and the evaluation sets are yours. Exit is documented rather than negotiated: no lock-in, and IP transfers at the end.

04

Who it is for

Four buyers, and each arrives from a different failure — which is why the first call is about the failure rather than the technology.

CTOs and VPs of engineering

The demo worked and nothing has reached production. What is missing is usually not model capability but the evaluation, the guardrails and the operational surface that make a release decision possible.

Heads of AI and ML leads

A prototype that hallucinates, costs more than expected and frustrates users at the tail of the latency distribution. All three are addressed by measurement rather than by a bigger model.

Chief risk and compliance officers

AI regulation arriving faster than the internal portfolio can be documented — turning a sprawl of experiments and shadow AI into a managed portfolio with evidence mapped to the EU AI Act, NIST AI RMF and ISO/IEC 42001.

Product leaders shipping AI features

When AI ships inside your product, every regression is customer-facing. The gate on score movement is what stops a prompt change from becoming a support queue.

05

What it does not do

The scope fence, and one thing the practice refuses to sell.

  • We do not claim to replace people. The published position on agentic work is that it augments teams with autonomous workflows, and it is stated twice on the source pages for a reason.
  • Testing the AI system as an ongoing quality discipline — evaluation sets, hallucination and bias checks, release gates on score movement — belongs to the quality practice. Quality engineering →
  • Penetration testing and application security assessment are a separate discipline; red-teaming a model is not the same as testing the estate it runs in. Enterprise IT security →
  • Building the data foundation the model retrieves from is data engineering work, and doing it badly is the most common reason a retrieval system underperforms. Data & analytics →
  • We publish no accuracy, hallucination-rate, cost-reduction or latency figure. Those numbers depend entirely on your data and your task, and quoting someone else's would be meaningless.
06

Answers

When should we fine-tune rather than use RAG?

Use retrieval when answers depend on changing or proprietary knowledge, and fine-tune when you need a consistent tone, format or task behaviour the base model does not have. Many production systems do both, and the choice is made against cost and accuracy targets rather than fashion.

Which models do you work with?

We are model-agnostic and select on accuracy, latency, privacy and cost. That includes leading commercial models such as Claude and GPT, and open models you can self-host — benchmarked against your task before anything is committed to.

Does our data train your models?

No. Your data never trains a shared model. AI governance is ISO 42001-aligned, every AI decision carries its evidence for an audit, and self-hosted or VPC-isolated deployment is available where your policy requires it.

How do you keep an agent safe and reliable?

Every agent ships with guardrails, an evaluation harness and human-in-the-loop checkpoints. It operates within scoped permissions, decisions are logged, high-impact actions are reviewed by a person, and the Agent Operation Centre can pause or roll back behaviour mid-flight.

How do you control cost and latency in production?

Model size is evaluated against the task, simple requests are routed to cheaper models, prompts and context windows are optimised, results are cached and batched where possible, and token spend is budgeted per feature and monitored continuously.

What is AI red-teaming?

Adversarial testing where engineers deliberately try to break the system — prompt injection, jailbreaks and edge cases — to surface unsafe, biased or non-compliant outputs before real users or attackers do. It runs against your guardrails, not against a generic benchmark.