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Oleksandr User

@oleksandruser9

Full-stack engineer building DriveIQ, an Irish driver-theory platform with native Android and iOS apps, live on both app stores.

Ireland

Message

I built and operate DriveIQ, an Irish driver-theory learning platform live on the App Store and Google Play. I developed its NestJS backend and native Android and iOS apps, including in-app payments, device attestation, analytics, and production infrastructure.

As an independent full-stack engineer, I’ve also delivered applications with secure REST APIs and automated CI/CD. Before that, I developed Laravel backend services and APIs, then built and maintained PHP and JavaScript web applications and internal tools.

Experience

Work history, roles, and key accomplishments

Current

Sales Assistant

Current

Retail

Nov 2023 - Present (2 years 11 months)

Held employment while building and shipping software independently.

Current

Full-Stack Engineer

Current

Independent / Product Development

Jan 2023 - Present (3 years 9 months)

Built and operate DriveIQ end to end: architecture, backend, both mobile apps, store submissions, release management and day-to-day production operations. Delivered additional full-stack applications covering relational data modelling, JWT/RBAC security and type-safe, documented API contracts.

NestJS Prisma PostgreSQL Redis Kotlin Jetpack Compose SwiftUI Docker GitHub Actions JWT RBAC CI CD

Backend Developer

PHP / Laravel

Jan 2021 - Jan 2023 (2 years)

Developed backend services and REST APIs in Laravel for a live production system serving daily users. Designed secure authentication, role-based access control and integrations with external service APIs.

PHP Laravel REST APIs Authentication RBAC Database Optimization Indexing

Web Developer

PHP / JavaScript

Jan 2018 - Jan 2021 (3 years)

Built and maintained server-rendered web applications and internal tools: MySQL schema design, form and reporting workflows, third-party API integrations. Owned deployments, bug triage and the incremental refactoring of legacy code into maintainable, tested modules.

PHP JavaScript MySQL Schema Design API Integration Deployment Refactoring