I create high-quality software.
Hi, I'm Oskar — a fullstack developer with 4+ years of experience in IT. I specialize in developing backend and mobile applications, as well as websites. I have hands-on experience working with Linux systems, test automation, modern development and DevOps tools.
Technical Expertise
Core technologies I use to develop production-grade software — Backend APIs, mobile clients, websites, and infrastructure.
Explore full skillsetBackend & API
Designing and building production-grade server-side systems with modern frameworks, robust APIs, and clean architecture.
- Spring Boot
- Spring Data JPA
- Ktor
- ASP.NET
- Gin/Fiber
- Microservices
- REST API
- GraphQL
- gRPC
- SQL
Mobile Development
Crafting native and cross-platform mobile applications with modern frameworks and best practices.
- Jetpack Compose
- Material 3
- View Models
- Navigation
- Dagger/Koin
- Kotlin Flow
- Flutter
- Dart
- React Native
Web Development
Crafting responsive, cross-platform web applications with modern frameworks and best practices.
- React
- Next.js
- Gatsby
- Svelte
- Astro
- Tailwind CSS
- PostCSS
- SSR
- SSG
Infrastructure & DevOps
Managing containerized deployments, CI/CD pipelines, and Linux environments to ensure reliability and performance.
- Docker
- Linux
- GitHub Actions
- GitLab CI
- SQL
- ORM
Big Data & Analytics
Analyzing and processing large datasets to derive insights and make data-driven decisions.
- Python
- Rust
- SQL
- Bash Scripting
- Automation
- Data Visualization
Quality Assurance & Testing
Implementing comprehensive testing strategies, including unit, integration, and end-to-end tests, to ensure software reliability.
- Unit Testing
- Integration Testing
- Test Automation
- Mocking
Selected Work
Examples of my projects that showcase my skills and experience.
LibrePass
A full-stack, open-source password manager built with end-to-end encryption, zero-knowledge architecture, and a Kotlin/Spring Boot backend for multi-device synchronization.
- Kotlin
- Spring Boot
- Jetpack Compose
- Docker
- Integration Testing
Let's build something together
I'm actively seeking for internships and junior developer opportunities where I can contribute to meaningful projects, solve real-world problems, and continue evolving as an engineer. Have a challenge in mind? Let's talk.