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Data Engineering Consulting Services for the data you already have and cannot yet trust.

Data engineering consulting is the work of getting data out of the systems that produce it and into a store that returns a number you can defend.

  • 120+Projects delivered across 12 countries since 2012
  • 100+Senior in-house engineers, six countries
  • 5.0Unified rating across 61 client reviews on Clutch
  • AWS CertifiedSolutions Architects on the team
  • ISO 27001Certified security practice, audited by Quay Audit UK
  • ISO 9001Certified quality management, audited by Quay Audit UK

01Overview

When the data exists and nobody can defend the number

The data exists, the systems already talk, and the number still cannot be defended: that is what this service is for. unicrew builds the layer underneath, meaning the pipelines that move records out of your source systems, the store that holds them, and the record definitions that settle what a figure counts. The first purchase is an assessment, which can end with us telling you to repair what you run.

  • The store is a decision, not a defaultWarehouse, lake, lakehouse, or the operational database you already run. Where rows are independent and reporting is aggregate, plain relational is cheaper, and we say so.
  • Read-only until the design is agreedDuring discovery, access is read-only wherever the work allows, least-privilege, and agreed with your technical contact. Nothing gets write access to production.
  • The handover is the deliverable listSchemas, lineage (where a figure came from) and runbooks are what let your team change a pipeline next year. Name them in the scope.
  • The rest of the data stackPlatform integration when the systems will not talk, cloud migration when moving the estate is the project, a hosted model wired in when the model is the goal.

02Proof

Why clients choose us for data work

A data layer is easy to demo and hard to live with. What decides an engagement is whether your team can still change a pipeline next year.

  • RWTH Aachen University wanted a tool, not a spreadsheetProject leaders were guessing at how their teams' time was spent, or handing the task to somebody else. We built the collection tool underneath the reporting, on the database and SQL depth the client had gone looking for in the first place.
    ~40%more project leaders tracking time, against guessing or delegating the task
  • The AI feature that turned out to be a data jobmeinUnterricht asked for better relevance, filtering and autosuggest. Underneath that sat tagging and embeddings, the numeric representations that let a system match meaning rather than spelling, and that layer is what set up their move to vector search. Our engineer worked the data foundations while the user-facing search shipped on top.
    ~9%higher search success rate, measured in a controlled experiment
  • When the database design is the ceilingSolus Connect ran its multi-factor authentication platform on one database that had outgrown the database technology of its day. No index or query rewrite reaches that, because the limit sat in the shape of the data rather than in the way it was queried. We partitioned it horizontally with sharding, so load spreads across multiple database nodes.
    Shardedthe single-database ceiling removed on an authentication platform that had to carry much larger datasets and transaction volumes

03Compare

Build it with us, hire in-house, or buy a platform?

Pick on whether the data problem ever ends, not on budget: a rebuild has a finish line and a permanent function does not. It cuts against us, so if your sources already match a managed platform's connectors, buy the platform. A fourth answer is to wait, which costs nothing today and bills later as an AI project that stalls on data readiness.

Data engineering with unicrewunicrew Data engineers in-houseHire A managed data platformBuy
Best forA rebuild, a migration or a scaling problem with a definite shape: pipelines that keep breaking, a database out of road, reporting nobody trusts. Best forA permanent function with daily ad-hoc demand, where the domain knowledge is worth keeping inside the company forever. Best forStandard sources into a standard warehouse, where your data already matches what the vendor's connectors expect.
Trade-offWe are a delivery partner, not headcount. The platform comes back documented and runnable, but somebody on your side has to own it. Trade-offThe skill people go looking for is databases plus real SQL depth, and it is scarce. A first hire with no platform to inherit builds alone for months before anything ships. Trade-offYou adapt to the tool. A legacy database, a file whose columns move between loads, or domain logic in the transformation becomes custom work anyway, on top of the bill.
You end up owningThe pipelines, the store, and the schemas and lineage that document them. You end up owningA team that knows your domain, and the payroll line that comes with it. You end up owningA subscription, a connector list, and your export files.

Quick self-check

Tick what is true for you. The read-out updates as you go.

0 of 4 true

Your operational database is doing the job

None of these is a data-platform problem, and a warehouse would be overhead you do not need yet. If the trouble is that two systems will not agree, that is platform integration; if a person is still doing the work by hand, that is business process automation.

Tell us anyway

One report, not a platform

One symptom on its own is rarely the data layer. It is one pipeline or one query, and repairing what you run is a far smaller commitment than replacing it. Fix that, and see whether a second symptom ever turns up.

Talk it through

Measure before you build

Two of these together point at the design of the data layer rather than at any one query. Before committing to a build, buy the measurement: every source in scope, where each one breaks, and what a fix would unblock. Sometimes that document says repair.

Book a discovery call

The trust problem has outgrown one-report fixes

Three of these together, and no amount of patching a report gets the number back. What is left to settle is which sources come first, and whether the store is built or repaired.

Book a discovery call

Start with the assessment, then build in slices

All four describe a data layer that has outgrown its own design, which is what a staged rebuild is for. Sequence it against one narrow question, and budget for somebody on your side owning it afterwards. Most engagements start within two to four weeks.

Start with discovery

Organizations with clean, well-structured data in accessible APIs deploy agents faster and get better results. Organizations with fragmented data across legacy systems often find that the data engineering work is the longer phase of the project.

Andrii BurdaSenior Engineering Manager, unicrew

04Capabilities

What we build: pipelines, stores, and the rules around them

A pipeline, a store, and the rules that keep what comes out of it defensible. Every one of these eight starts from the same question: what does a record actually mean in the system it came from?

  • Data pipeline development

    Data pipelines and ingestion

    ERP, CRM, APIs, flat files

    Automated pipelines out of your ERP, CRM, supplier and carrier APIs and the flat files nobody owns. Source formats fight back: an Excel template whose columns move between loads costs more than the transport ever will.

  • Cloud data migration services

    Cloud data migration

    AWS or Azure, in slices

    Move data off legacy systems onto AWS or Azure one source at a time. The slow part is not the copy, it is proving the new side matches: expect real time spent spot-checking integrity on both sides before anything is switched over.

  • Data architecture consulting

    Data architecture and scaling

    Partitioning, sharding, read paths

    When the bottleneck is the database design itself, query tuning never reaches it. Indexes and caching raise the ceiling without removing it, and re-partitioning live data costs a great deal more than tuning it, which is the argument for deciding deliberately rather than late.

  • Data warehouse and lakehouse design

    Warehouses, lakes, and lakehouses

    Snowflake, Postgres, Neo4j

    A warehouse for known business questions, a lake for exploration, a lakehouse for both: on Snowflake or Databricks where the volume earns them, on Postgres or MS SQL where it does not, and on a graph database like Neo4j when the questions run along relationships rather than sitting inside one record. Sometimes the answer is no new store.

  • AI data readiness

    AI-ready data foundations

    Schemas, lineage, freshness

    AI-ready means a model can reach the data, trust it, and use it safely. Retrieval systems and agents fail quietly on messy records: they return the wrong one, or fill a gap with something invented. Schemas, lineage, access controls and freshness go in first.

  • Data governance consulting

    Data governance and security

    Access, encryption, retention

    Access controls, encryption, retention rules, and an audit trail for who touched what, under the ISO 27001:2022 and ISO 9001:2015 certifications we hold, with GDPR shaping the architecture where it applies. Security as an engagement of its own is cybersecurity consulting.

  • Reporting and analytics engineering

    Analytics and reporting enablement

    Reports and the tools that feed them

    Clean data only counts when somebody acts on it, so the reporting layer and the collection tools that feed it are one job. A collection tool is won or lost on how little effort it costs the person filling it in; when that cost is real, people quietly stop, and the reporting stops being true.

  • Data capture automation

    Data capture and entry automation

    Recognition, validation, exceptions

    When the only way data gets in is a person typing it, the source is the bottleneck rather than the store. Document recognition, validation and an operator screen for the exceptions, as on the product databases of a Munich software company that could only be filled from hand-typed datasheets. Where the process itself is the problem, that is business process automation.

05Trust

A data layer you can trust

Three things are worth demanding from a data engagement, ours or anyone else's: a written picture of where your data breaks before anything is built, the documents your own team needs to run what replaces it, and something usable in production before the platform is finished.

  • Written firstA map of your sources and where each one breaksWith the fixes ranked by what each one unblocks
  • In the scopeSchemas, lineage and runbooks as named deliverablesDocumentation nobody named in the scope is documentation nobody writes
  • EarlyA first trusted dataset in productionNot a demo environment, and not at the end

06Stack

The stores and tools we build on

The stack is the cheapest decision on a data project. The expensive part is agreeing what a record actually means in each source system, and no tool settles that for you. Snowflake and Databricks are on this list where the volume earns them, and Postgres is on it because more often it does not.

BackendServices, APIs, and business logic
CloudWhere it runs, and what it costs

07Engagement

How you engage us on a data project

All three start in the same place, a look at what you actually run. What differs is how much you commit before the first pipeline lands, and who owns the platform after it does.

  • An assessment first

    Decision first

    On a data layer nobody has measured, the honest first deliverable is a document rather than a pipeline: where data lives, where it breaks, and which fixes unblock what. The build afterwards is a separate decision.

    Best when
    Nobody has measured the data layer, so the scope is a guess
    You pay
    Billed hourly, quoted per project
    Typical start
    Two to four weeks
  • A scoped build

    Defined scope

    A named set of sources, a target store, and an agreed definition of done for each one, quoted once the assessment has made the scope real enough to price.

    Best when
    The rebuild or migration has a definite shape and a finish line
    You pay
    Outcome based, quoted per project
    Typical start
    Two to four weeks
  • A named senior pod on your roadmap, which is the shape that fits when the data work never really ends: new sources, new questions, and pipelines that need an owner.

    Best when
    The demand never closes and you want one team answerable for all of it
    You pay
    Billed monthly, per team member
    Typical start
    Two to four weeks
You already run a data platform

An assessment first, and the rebuild is a separate decision

Not every platform that feels wrong needs replacing. A pipeline that fails silently, a store that was right two years ago, and a report nobody ever checked against the system it came from all look the same from the outside and cost very different amounts to fix. Taking one over starts with reading it, so the first weeks buy understanding rather than features, which is the trade for not starting again. You get a written document with the fixes ranked, and handing us the build afterwards is a separate decision. There is no minimum engagement period.

08Industries

Industries we do data work in

The definitions are the hard part, and only your sector can settle them: what counts as a completed shipment, which system's customer record wins, how long you are obliged to keep a transaction. We ramp on those rules rather than learning them on your budget.

Deepest expertise

Logistics and transportation

Lead, job-order, document, billing and call-center data all have to resolve behind one customer record, as they do on a US moving-company SaaS built from scratch.

Deepest expertise

Hospitality and leisure

Booking, membership and payment systems that each hold a piece of the same guest, including a venue platform whose operators need one view of them.

Fintech and accounting

The data layer carries the compliance surface, not just the reporting. On an accounting platform taken over mid-build the software now reconciles transactions against invoices automatically, and we go deeper on accounting software.

Commodity trading (CTRM/ETRM)

Positions, curves and settlement data have to reconcile across systems never designed to agree. We built a B2B commodity trading platform with its CRM integrated into the marketplace, and the same problem shows up in energy and utilities.

EdTech and learning

On a library of curated material, search is what decides whether a teacher finds the right worksheet. We built the tagging and embeddings underneath a German edtech platform's search while its user-facing features shipped on top.

E-commerce

Product, pricing and order data that has to stay consistent across storefronts, an ERP and several marketplaces, as for a European manufacturer selling into seven EU countries.

Start with the number you cannot defend

Discovery is where the scope and the estimate come from, so the first conversation is about your sources and the state they are in. If the honest answer is that you do not need a data program yet, we will say that.

Let's talk

What happens after you contact us

  1. We reply within one business dayThe reply names which of your source systems we would need to see before anyone could scope this.
  2. A call about your sources and what nobody trustsWhich systems the data lives in, and whether you need a data program at all yet.
  3. A written map of your sources and failure pointsWhere data breaks, where it is slow, and the fixes ranked by what each unblocks.
  4. Then an architecture, and a start dateThe store and the pipelines decided before anything gets built. Most engagements start within two to four weeks.

09Delivery

How do Data Engineering Services work?

What sets the pace here is rarely the number of sources. It is how long it takes to find the person who can say what a field actually means. Access is agreed under NDA before any of it starts.

  1. Discovery and data assessmentWhere data lives, where it breaks, where it is slow, and where nobody trusts the numbers. From you we need read access agreed with your technical contact, and one person per source who knows what the fields actually mean.You getA written map of your sources and failure points, with the fixes ranked by what they unblock.
  2. Architecture and designThe store, the pipelines and the governance model that fit your questions and your team's skills, including the version where we repair what you already run. The reasoning gets written down, so the next engineer inherits decisions rather than guesses. From you we need whoever can settle which system's figure wins when two disagree.You getAn architecture blueprint covering store, pipelines and governance, with the trade-offs recorded.
  3. Development in slicesThe first reliable pipeline or cleaned reporting dataset ships early. If one decision or report is driving the project, we sequence toward it and name the dependency chain up front. From you we need somebody who will actually open the environment between sprints.You getA first working pipeline or trusted dataset in production, not a demo environment.
  4. Validation and handoverNothing should become the store a report is taken from until somebody has checked it against what it replaces, on both sides. That check is worth naming in the contract rather than assuming, and it needs one engineer or analyst on your side, because a handover only works if somebody catches it.You getDocumented schemas and lineage, and your own team able to run the platform.
  5. Support and optimizationVolumes grow, sources get added, and version upgrades arrive on somebody else's schedule. Support after handover is a separate decision rather than a default, and taking the platform in-house at this point is a perfectly good version of it. From you we need the person who will own it.You getA post-launch warranty period on fixed-scope work, its length agreed at contract.

10Client voices

Our clients say

See our client reviews
5.0 unified ratingacross 61 verified client reviewsRead them on Clutch

11Case studies

Our case studies

One reporting tool that lives or dies on whether people fill it in, and one search team whose real bottleneck was the tagging and embeddings underneath. Data work rarely arrives with its own name on it.

See all case studies

12Questions

FAQ about Data Engineering with unicrew

Two things decide the bill on a data project, and only one of them is visible from outside: how many sources are in scope, and how bad the data is inside each one.

Data engineering is the layer that collects, moves and stores your data so the rest of the business can use it: pipelines out of your source systems, a store that holds the result, and the record definitions and access rules that keep it trustworthy. You need it when the data already exists, the systems already talk, and turning it into a reliable number still takes an engineer and a day.

The driver is not how many source systems there are, it is how bad the data is inside each one, and that is invisible from the outside, which is why the estimate comes out of discovery. Four things move it: how many sources have to be connected, the state of the data in each of them (the one that surprises people), whether the target store is built or repaired, and how much governance the sector demands. You get the estimate before you commit budget. Where the work never closes, the answer is team extension instead, billed monthly per team member.

Value arrives in stages rather than at one big finish. Discovery and architecture come first; from there the build runs in increments, so a first reliable pipeline or cleaned-up reporting dataset lands early. If a specific decision or report is driving the project, we sequence toward it and tell you the honest dependency chain before the number you care about becomes trustworthy. One thing to settle at the start rather than at the end: decide what counts as success and instrument it first, or the number will not stand up to the first person who asks how it was produced.

Yes. Pipelines out of an ERP, a CRM, payment or billing providers, supplier and carrier APIs and a pile of exported files nobody owns are the normal starting point rather than an add-on. The connector is rarely the hard part; agreeing what a record means in each system is. One food producer's ERP integration was worth doing because it made one definition of a record hold across every organizational unit, and on a moving-company SaaS lead, job-order, document and billing data all had to resolve behind one customer record. Where two systems disagree, we settle which one wins before writing code. Where the systems will not talk at all yet, that is platform integration rather than this.

Yes. We build on AWS, Azure and Google Cloud, and we work to the platform you already run rather than pushing a migration you do not need. Where a move genuinely helps, that is a scoped cloud migration we plan with you. The architecture fits your stack and your team's skills, so you can maintain it after we hand over.

No, and waiting for a perfect data layer is how AI programs stall indefinitely. AI-ready data is data a model can reach, trust and use safely: consistent records, documented schemas and lineage, access controls so a model only sees what it should, and pipelines that keep it fresh. Build that alongside one use case narrow enough to work with what you already have. On a German edtech platform's search team the tagging and embeddings underneath went in while the user-facing search work shipped on top. Avoid a first use case that needs perfect data or carries high regulatory exposure. Where the model is hosted and the job is wiring it into a live system, we scope the two together.

Often, yes, and it is usually the cheaper path. We start with an assessment: where data breaks, where it is slow, where nobody trusts the numbers. Sometimes the answer is targeted fixes to pipelines and governance; sometimes one component is beyond economical repair and we rebuild that piece alone. We tell you which is which, rather than defaulting to a full rebuild that bills more.

That is a question to settle in the scope rather than after go-live. Alerting on a failed load, a freshness check on each table that feeds a report, and a named person who receives both are cheap to build in and expensive to retrofit, so agree them as deliverables when you agree the work, with us or with anyone else. If a stale dashboard is how you find out today, put it at the top of the assessment, and check whether the pipeline has an owner at all before buying tooling for it.

Our information security management system is built on ISO 27001 standards and verified by external audit: we hold ISO 27001:2022 and ISO 9001:2015, renewed through a multi-stage audit with Quay Audit UK. On a data engagement that shows up as encryption in transit and at rest, least-privilege access agreed with your technical contact, an audit trail for who touched what, and retention rules written into the design, with GDPR shaping the architecture where it applies.

Pipelines, a store and engineers are what every full-service vendor offers, this page included, so the useful questions sit under the category. Four of them can be checked from outside a proposal, and all four should be put to us too. Ask what handover contains, and whether documented schemas, lineage and runbooks are named deliverables rather than something that happens if there is time left. Ask whether the assessment can be bought on its own, and what happens if you stop there. With us the build afterwards is a separate decision. There is no minimum engagement period. Ask which certifications a vendor actually holds and which it lets you assume: we hold ISO 27001:2022 and ISO 9001:2015, audited by Quay Audit UK, and we do not hold SOC 2. And ask for review URLs rather than a rating, because every client quoted here links straight to the review their words came from.

Three of them, and each is better said on the call than after a contract. If nobody in your organization owns the numbers, no pipeline fixes that: whose figure wins is a question for people first. If what you need is one analyst answering ad-hoc questions in your weekly operations meeting, hire that person rather than engage a delivery partner. And if your data already lives in one clean system and the reporting works, do not start a data program just to have one.

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