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Senior Backend Engineer (NXJ-183)

Newxel, Poland, Romania, Spain, Ukraine
Формат:
повний remote
Рівень:
senior
Джерело:
jobs.dou.ua
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The Role

Your job is to take ownership of that platform, stabilise it, and then evolve it from a functional commerce stack into a genuine technological edge over incumbents still running decade-old systems. This is a wide-surface, high-autonomy role. The first week is concrete: search, filtering, and product images. The next two years are open-ended: architecture, automation, data structuring, and integrations. You will not be handed a backlog of well-specified tickets — you’ll be expected to look at high-level business problems and bring back solutions. The role suits someone who wants to own a system, not maintain one.

About the Product

The platform serves the Nordic dental distribution market — dental clinics ordering from large supplier catalogues, with the full lifecycle from browsing to fulfilment. It works and it sells, but it’s deliberately lean: very little custom code today, mostly default WooCommerce, with a simple daily stock-import script behind it. That’s the point. The interesting work is ahead, not behind:

Search that actually returns what buyers are looking for (today it too often returns nothing, or the wrong thing)

Real supplier integrations to replace manual and script-based stock/cost updates

A pricing engine that serves many customer groups, each with different prices and discounts off a base cost

Fulfilment automation across the order-to-supplier-to-customer flow

Technology Stack: WordPress / WooCommerce on a dedicated Linux VPS. MySQL for the data layer. PHP for custom components. REST for external connections. Git for version control. The stack is practical, not glamorous — but the engineering problem is real: you’re operating and extending a data-and-commerce system at catalogue scale, not theming a store.

What You’ll Be Doing

Own the search, filtering, and sorting layer across an 80,000+ product catalogue — improving relevance and discoverability for B2B buyers

Structure and work with large datasets — products, customers, purchasing behaviour, logistics — and turn them into something queryable and useful

Drive database and query optimisation to handle large catalogue workloads and WooCommerce performance under real load

Build and extend supplier integrations: stock sync, cost sync, pricing engines — replacing manual intervention with automation

Harden the order-to-fulfilment flow — order processing, supplier handoff, payment flow — with better error handling and monitoring

Build the multi-segment pricing logic: different customer groups, different prices and discounts off a shared base cost

Evaluate and influence architectural decisions — search platforms, headless options, data services, AI-assisted workflows — and decide when (and whether) the current stack should evolve

What We Expect

We’ve deliberately kept the hard requirements loose. Years of experience don’t matter to us — we’ve seen brilliant 25-year-olds and we’ve seen 50-year-olds who couldn’t deliver. A strong junior with the right head can do this; so can a seasoned senior. What matters is the thinking.

Non-negotiable

5+ years of backend / full-stack engineering, with PHP and MySQL among your working tools

Strong analytical and structural thinking — you can take a large, messy dataset and impose order on it

Genuine independence — you bring solutions to high-level problems and don’t need daily instructions to make progress

Comfort in a Linux server environment — deployment, debugging, administration

REST API design and integration

Git

Strong plus

Experience with large-scale e-commerce catalogues (tens of thousands of SKUs, complex pricing)

Search technology exposure — Elasticsearch, Solr, Algolia, or similar

ERP or supplier integration work

Background processing / job queue architecture

Data processing and pipeline experience

WooCommerce / WordPress familiarity

Why This Role Is Worth Your Time

Ownership from day one. No legacy engineering team, no committee approvals, no process bureaucracy. You inherit a 

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