Who We Are
Xylexthord is a data migration and integration practice operating from Odesa, Ukraine. We work with organizations that need to move, connect, or restructure data across systems — and need that work done without disruption to daily operations.
Our practice is built around a single discipline: moving data reliably between systems that were never designed to talk to each other.
We work with ETL pipelines, API integrations, and legacy database migrations — the kind of work that requires both technical precision and an understanding of what the data actually means to the business.
What this practice actually does
Data migration is rarely glamorous work. It involves mapping schemas, resolving format conflicts, validating row counts, and running the same test cycle several times before a cutover date. We do this carefully, and we document everything.
1. Xylexthord was founded in 2020 with a specific focus: organizations in and around Odesa were managing critical data in aging systems — accounting platforms, CRM installations, and custom databases — with no clear path to modernization. We built a practice to address exactly that problem.
2. Our work typically begins with a data audit. Before any pipeline is built or any migration is scheduled, we need to understand what exists: table structures, data quality issues, undocumented fields, and the business rules encoded in legacy logic. Skipping this step is how migrations fail.
3. From there, we design the migration or integration architecture, build the transformation logic, and run parallel validation before any production cutover. Most of our engagements also include a post-migration support period — because the first weeks after a cutover are when edge cases surface.
Detailed process breakdown
Specialists, not generalists
We are a small team. Intentionally.
Data migration work does not benefit from large teams cycling through tasks. It requires a small group of people who stay close to the data throughout the entire engagement — from the initial audit through post-cutover validation.
Our engineers work on one or two projects at a time. That constraint is deliberate: it means the person who designed your migration schema is also the person running the validation queries and responding when something unexpected appears in production.
Daryna Koval
Lead Migration EngineerSpecializes in PostgreSQL-to-cloud migrations and complex ETL pipeline design. Has handled data volumes from a few gigabytes to multi-terabyte legacy transfers.
Oksana Bilyk
API Integration SpecialistFocuses on REST and GraphQL integration between enterprise platforms. Familiar with ERP connectors, CRM APIs, and custom middleware development.
Verification over assumption
Every row count, every schema mapping, every transformation rule is checked against source data before any cutover proceeds.
Scheduled, not rushed
Migration timelines are set based on actual data complexity. We do not compress cutovers to meet arbitrary deadlines.
Local context matters
Operating in Odesa means we understand the software landscape, regulatory context, and data formats common to Ukrainian businesses.
Direct communication
Clients communicate with the engineer doing the work, not a project manager relaying messages between teams.
A specific question deserves a direct answer
If you have a migration project in scope or an integration problem you have not been able to resolve, leave your email address and a preferred time to talk. We will reach out with a focused response — not a sales call.