Data engineering for AI and analytics

We design the data pipeline: pull from APIs, databases, and files, land it in a layered warehouse with marts, and add quality checks. In 6-8 weeks we launch a pilot on three sources.

We build ingestion, storage, and marts so reports reconcile and quality checks run before publication.

Pricing

from ₽1,200,000

per project

This is the lower bound of a project. We scope the exact quote after a brief: it depends on volume and the number of integrations.

What's included

Capabilities

Ingestion from sources

We pull data from APIs, databases, and files with a connector, cursor, and retry on a dropped connection. You set the schedule, and a repeat run closes a missed interval.

Warehouse and marts

We build warehouse layers: raw, cleaned, and analytics. Marts are shaped for reports, so an analyst gets a table with clear fields and freshness within the last hour.

Quality checks

Every run checks empty required fields, duplicate keys, and amount mismatches between source and mart. A mismatch stops publication and sends an alert within 15 minutes.

Lineage and monitoring

The lineage line links a mart column to its source table and transformation step. A dashboard shows freshness, volume, and pipeline status, so a failure shows before a complaint.

How we work

From request to result

  1. 1

    Source audit

    We review systems, owners, and access methods: API, database, file, or an export from an accounting system. We record refresh cadence and required fields.

  2. 2

    Warehouse model

    We design layers and marts for your reports: which tables you need, how keys connect, and where a metric is calculated. We agree the schema with your analyst.

  3. 3

    Pipelines and checks

    We build ingestion and refresh, then add quality checks and lineage. Every pipeline gets a schedule, a retry, and an alert, and the result lands on the dashboard.

  4. 4

    Pilot and handover

    We launch a pilot on three sources and up to 5 TB, then reconcile the numbers with your reports. We hand over documentation, tests, and instructions to your team.

Who it fits

Check if it fits you

Good fit

  • Three sources or more

    Data sits in a CRM, billing, and files while an analyst assembles the summary by hand. The pipeline brings the sources into one warehouse and refreshes marts.

  • An analytics owner

    An analyst owns the metrics and confirms the calculation rules. They set source priority and accept the pilot.

Not a fit

  • No access to sources

    A vendor closed the API and withholds an extract, while the database sits with a contractor. Access or an official export comes first.

  • Ad-hoc extracts only

    Reports are assembled by hand once a month, and one person holds the repeatable process. A pipeline pays off when a report is needed more often.

Track record

What you get

3 sources

Sources in the pipeline

The base pipeline collects 3 sources: an API, a database, and files. Each source is listed on the map and added to the schedule.

5 TB

Warehouse volume

The base warehouse holds 5 TB: a raw layer, a cleaned layer, and marts. Volume grows with the sources, and the retention policy sets a lifetime.

2 pipelines

Pipelines at work

The base setup runs 2 pipelines: loading and mart refresh. Schedule, retries, and alerts are set in the first stage, so runs stay automatic.

Scope of work

What the delivery includes

A source map

The source map lists systems, owners, refresh cadence, and access method. It shows which APIs and tables feed the warehouse.

Pipelines

Pipelines pull data on a schedule and land it in warehouse layers. Every run records status, volume, and duration, and a repeat run closes an interval.

A quality dashboard

The quality dashboard shows the share of empty fields, duplicate keys, and mismatches between source and mart. It tracks data freshness and check results.

How it works

How the system is built

  1. Ingestion

    Ingestion pulls from APIs, databases, and files on a schedule or an event. Each source gets a connector, cursor, and retry rule, so a load resumes from the point where it stopped. Raw records stay in the warehouse.

  2. Transformation

    Transformation brings raw records into one schema: types, dictionaries, and keys settle into a single layer. The model splits raw, cleaned, and analytics layers, and logic lives in SQL and versions with the code.

  3. Quality and lineage

    Quality and lineage checks run at every step: checks count empty fields, duplicates, and amount mismatches. The lineage line links a mart column to its source table, so a dispute about a number opens the path.

Limitations and cost

Where the solution pushes back

  • 01

    Source quality

    Source quality sets the ceiling for mart accuracy. Duplicates, mixed date formats, and empty fields surface on the first run, so the audit comes before model design. An ingestion check adds 10–15 minutes per source to the pipeline run, and a mismatch surfaces before the mart is published.

  • 02

    Data ownership

    Data ownership sits with your analyst, who confirms metric rules and source priority. We hand over documentation, tests, and instructions, so your team runs the pipelines.

  • 03

    Latency and cost

    Latency and cost move together: streaming refresh updates marts in minutes and uses more compute, while a nightly batch costs less at volume. We size both modes on your data.

Stack

Technologies

The technologies we use in our work and their role in a project.

Ingestion, storage, and analytics

Ingestion runs through Airflow, streaming events land in Kafka, transactional data sits in PostgreSQL, analytics queries hit ClickHouse, and files and archives live in MinIO.

Pipeline orchestrator: schedules, step dependencies, and retry runs are code, versioned in the same repository.Streaming bus: takes events from applications and hands them to consumers with an on-disk buffer.Transactional database: keeps reference tables and operational data, runs read replicas, and enforces integrity at the schema level.Columnar database: counts aggregates over millions of rows in seconds and holds the marts analysts query for reports.Object storage: keeps raw extracts, archives, and large files on your hardware, with an S3-compatible API.
Budget estimate

Cost calculator

This is an indicative range, not a quote. We scope the exact estimate after a brief: it depends on volume and the number of integrations.

Data sources

3

Volume, TB

5

Pipelines

2

Warehouse

Add-ons

Support

Year one: updates and monitoring, a reply within 2 business days.

Service

Data engineering for AI and analytics

The estimate covers our team's work. Hardware, third-party service licences and travel are added on request.

Estimated cost

₽1.95M

Timeline

8 wk

Questions

Frequently asked questions

Which stack do you use?

The stack: Airflow for scheduling, Kafka for events, PostgreSQL for transactions, ClickHouse for marts, MinIO for files. We pick it for your sources and volume.

How do you choose a warehouse?

We look at query type and volume. Transactions go to PostgreSQL, aggregates over millions of rows to ClickHouse, files to MinIO. Up to 5 TB, PostgreSQL and ClickHouse cover the job.

How long does the project take?

A pilot on three sources and two pipelines takes 6-8 weeks. The first two weeks cover the audit and model, then come pipelines and checks. We size it after the source list.

How do you ensure data quality?

Checks count empty fields, duplicate keys, and amount mismatches with the mart. You set the threshold, for example an empty-field share below 1%. A mismatch stops publication, and an alert arrives within 15 minutes.

Ready to discuss your task?

Leave a request – we'll get back with a proposal and a preliminary estimate.

Contact us