Solutions & Integration Engineer

Systems that
work in reality.

I turn fragmented processes and legacy systems into reliable production integrations — connecting applications, data, infrastructure, and business operations.

Explore selected work Start a conversation
Python / PHPBackend systems
Linux / DockerProduction operations
APIs / SQLIntegration & data
9 yearsE-commerce ownership

01 / Expertise

One engineer across the whole system.

From a vague operational need to architecture, implementation, deployment, and incident resolution.

01

Integration engineering

Reliable connections between APIs, databases, files, marketplaces, and systems without a clean public interface.

  • REST APIs & webhooks
  • Data mapping & SQL
  • Retries, validation & idempotency
02

Production systems

Hands-on ownership across application code, containers, operating systems, databases, networks, and failures.

  • Linux, Docker & Proxmox
  • Monitoring & troubleshooting
  • Deployments, backups & security
03

Automation & modernization

Replacing fragile manual work and legacy constraints with maintainable pipelines and controlled change.

  • Python process automation
  • Legacy PHP modernization
  • AI-enabled workflows

02 / Selected work

Evidence over buzzwords.

Selected public work and anonymized evidence from private repositories. The summaries show the engineering scope without exposing source code, clients, vendors, or confidential implementation details.

CASE / 01

Private engineering work · Anonymized

Multi-platform product catalog synchronization

Built a modular integration that synchronizes product data and media between a commerce platform and an external marketplace, including category and attribute mapping.

PythonDjangoDockerData mappingModular adapters

Engineering evidence

Catalog data
Media assets
Taxonomy mapping Repository remains private; summary intentionally omits identifying details.
CASE / 02

Private integration · Anonymized

Retail loyalty and digital-wallet integration

Connected a Django application to an external retail system, combining customer and loyalty data with persistence, administration tools, a web interface, and mobile-wallet pass generation.

PythonDjangoREST APIDigital walletAdmin workflows

Engineering evidence

External API
Application state
Wallet passes Repository remains private; summary intentionally omits identifying details.
CASE / 03

Private automation · Anonymized

Public-record data extraction pipeline

Created a Python workflow for collecting records from a public source, structuring the results, and checking exported CSV data for downstream use.

PythonBrowser automationCSVValidationData extraction

Engineering evidence

Source navigation
Structured export
Data checks Repository remains private; summary intentionally omits identifying details.
CASE / 04

Private product work · Anonymized

Business calculator embedded in a CMS

Developed a custom web plugin that turns domain-specific rules into an interactive calculation flow, with a PHP integration layer and a compiled JavaScript/SCSS interface.

PHPJavaScriptSCSSWebpackCMS plugin

Engineering evidence

Business rules
Interactive UI
CMS integration Repository remains private; summary intentionally omits identifying details.
PUBLIC / 01

Hackathon project · Open source

HackNation Anomaly

A Python project developed in a time-boxed team environment, showing rapid problem framing, prototyping, and delivery.

PythonRapid prototypingTeam delivery
View on GitHub↗
01

ETHWarsaw 2024

CoinSwipe — 1st place in the DragonSwap bounty

Recognized for turning an idea into a working technical solution under hackathon constraints.

42 Warsaw recognition ↗
02

HumanTech Hack 2024

Warsaw Moss — 3rd place

Awarded at HumanTech Hack 2024 for an innovation-for-good project delivered by the Warsaw Moss team.

View project ↗ HumanTech Hack 2024 third-place diploma for Dmytro Kolida View diploma

03 / About

Technical judgment shaped by operating a real business.

I work where application code, infrastructure, imperfect data, and business reality meet.

My engineering experience spans Python and PHP applications, APIs, SQL, Linux, Docker, production troubleshooting, and legacy modernization. Nine years of e-commerce ownership taught me to judge technology by operational cost, risk, and outcomes — not novelty.

I’m at my best when the requirements are ambiguous, several systems have to cooperate, and someone needs to own the result after deployment.

How I workDiscover → design → deliver → operate
Current focusReliable cloud integrations & controlled AI automation

04 / Toolkit

Tools in service of outcomes.

Build

Python · PHP · JavaScript · FastAPI · Django · Flask

Integrate

REST APIs · Webhooks · SQL · ETL · CSV / JSON / XML

Operate

Linux · Docker · Proxmox · CI/CD · Logging · Backups

Data

PostgreSQL · MySQL · Redis · Validation · Data mapping

Expanding

AWS · Terraform · Kubernetes · Observability · AI evals

Business

Discovery · Architecture · E-commerce · Mentoring · Ownership

05 / Contact

Have a difficult system to connect?

dmytrokolida@gmail.com ↗ GitHub ↗ CV PDF — coming soon
Email copied