Oleksandr Shulenin
Oleksandr Shulenin

Senior Full-Stack Engineer

Open to offers · Member since 22 Oct 2026
Location
Bunclody, Ireland
Desired salary
Unspecified
Work preference
Remote Only / Full Time, Part Time
Experience level
Senior

About

Professional summary

I am a full-stack engineer with 8 years of experience delivering production software across backend, web, and native mobile development. I specialize in building secure, scalable applications from initial architecture through deployment and ongoing operations.

I am the sole architect and engineer behind DriveIQ, an Irish driver-theory learning platform available on the App Store and Google Play. I built its NestJS backend, native Android and iOS applications, payment integrations, analytics, security controls, and production infrastructure.

I work extensively with TypeScript, NestJS, Node.js, PHP, Laravel, Python, PostgreSQL, Redis, and REST API design. I am comfortable with data modelling, authentication and authorization, JWT and RBAC security, automated testing, API documentation, and third-party integrations.

I build native mobile products using Kotlin with Jetpack Compose for Android and Swift with SwiftUI for iOS. I have implemented in-app subscriptions and purchases, server-side receipt validation, device attestation, certificate pinning, encrypted token storage, and multilingual offline-tolerant entitlement flows.

I own delivery pipelines and production operations end to end, using Docker, GitHub Actions, Linux VPS hosting, nginx, Cloudflare R2, Sentry, Grafana, and Firebase services. I value reliable CI/CD, protected release processes, monitoring, performance optimization, and maintainable tested code.

I also develop open-source projects, including e-commerce APIs, URL shorteners with analytics, and retrieval-augmented document Q&A systems. I have full permission to work in Ireland and am able to contribute independently across product engineering, backend development, and mobile delivery.

Skills

51 capabilities

Tech stack & tools

Working toolkit

Analytics

Application Hosting

Application Utilities

Data Stores

Languages & Frameworks

Experience

Career history

Full-Stack Engineer Independent / Product Development

I built and operate DriveIQ end to end, including product architecture, a NestJS backend, native Android and iOS applications, app-store submissions, release management, and day-to-day production operations.

I delivered additional full-stack applications involving relational data modelling, JWT and RBAC security, and type-safe documented API contracts. I also ran containerized CI/CD through GitHub Actions, with automated tests, quality gates, protected branches, and pull-request review before production deployment.

Sales Assistant Retail

I have worked part-time in retail while independently building and shipping software products.

This role has been held alongside my full-stack product development work on DriveIQ and other software projects.

Education

Learning history
No education data available.

This professional hasn’t added portfolio projects yet.

This professional hasn’t listed any services yet.

Jobs Talent AI Tools Salaries
Menu