09/04/2026 updated
100 % available
Full-Stack Engineer | React, Next.js, TypeScript, Node.js
Espoo, Finland
Only remote
Bachelor's degree in Computer Software EngineeringAbout me
Full-Stack Engineer with 5+ years of experience building web applications with React, Next.js, TypeScript, Node.js, PostgreSQL, and REST APIs. I build responsive UIs, backend features, and reliable products, with a strong focus on quality, performance, and clean code.
AI AgentsTailwind CSSJavaScriptHTML5PostgreSQLNode.jsTypeScriptReact.jsRestful Api
Frontend Development
Expertise in building and maintaining web and SaaS applications using React, Next.js, TypeScript, JavaScript, HTML5, CSS3, with a focus on reusable components, responsive design, accessibility, and performance optimization.
Backend & API Development
Solid knowledge in backend development using Node.js, REST APIs, API Design, PostgreSQL, MongoDB, SQL, as well as Authentication and Authorization mechanisms for scalable and secure architectures.
Testing & Quality Assurance
Proficiency in testing methodologies including Unit Testing, Integration Testing, and End-to-End Testing using tools such as Jest, Cypress, and Vitest to ensure reliable and production-ready software.
AI Development Tools
Daily use of AI-assisted development tools including Claude Code, Cursor AI, GitHub Copilot, and ChatGPT for planning, coding, testing, debugging, and refactoring.
Engineering & DevOps Tools
Experience with Git, GitHub Actions, CI/CD pipelines, Docker, AWS (basic), and Vite for efficient development workflows and deployment processes.
Modular Frontend Architecture
Building reusable component systems and modular frontend architectures to improve consistency, maintainability, performance, and user experience across large-scale applications.
Performance Optimization
Identifying and resolving performance issues through rendering optimization, lazy loading, code splitting, and debugging techniques in large-scale frontend applications.
Full-Stack SaaS Development
Ownership of full-stack SaaS features from technical planning and development through testing and production delivery, including secure REST APIs, authentication flows, and database integrations.
Expertise in building and maintaining web and SaaS applications using React, Next.js, TypeScript, JavaScript, HTML5, CSS3, with a focus on reusable components, responsive design, accessibility, and performance optimization.
Backend & API Development
Solid knowledge in backend development using Node.js, REST APIs, API Design, PostgreSQL, MongoDB, SQL, as well as Authentication and Authorization mechanisms for scalable and secure architectures.
Testing & Quality Assurance
Proficiency in testing methodologies including Unit Testing, Integration Testing, and End-to-End Testing using tools such as Jest, Cypress, and Vitest to ensure reliable and production-ready software.
AI Development Tools
Daily use of AI-assisted development tools including Claude Code, Cursor AI, GitHub Copilot, and ChatGPT for planning, coding, testing, debugging, and refactoring.
Engineering & DevOps Tools
Experience with Git, GitHub Actions, CI/CD pipelines, Docker, AWS (basic), and Vite for efficient development workflows and deployment processes.
Modular Frontend Architecture
Building reusable component systems and modular frontend architectures to improve consistency, maintainability, performance, and user experience across large-scale applications.
Performance Optimization
Identifying and resolving performance issues through rendering optimization, lazy loading, code splitting, and debugging techniques in large-scale frontend applications.
Full-Stack SaaS Development
Ownership of full-stack SaaS features from technical planning and development through testing and production delivery, including secure REST APIs, authentication flows, and database integrations.
Experience
Professional experience0 - 5 years
Freelancer since2024
Languages
EnglishGood
Project history
Owned full-stack SaaS features from technical planning and development through testing and production delivery. Designed and implemented secure REST APIs, authentication flows, database integrations, and scalable backend architecture. Built maintainable React interfaces and reusable components focused on performance, accessibility, and user experience. Used Claude Code, Cursor AI, GitHub Copilot, and ChatGPT daily for planning, coding, testing, debugging, and refactoring.
Budget Tracker: Built an end-to-end SaaS finance application using React, TypeScript, Node.js, PostgreSQL, REST APIs, authentication, database integration, and reusable UI components.
NexPath Career Assessment Platform: Built an AI-assisted testing workflow using React and REST APIs to detect broken user flows and improve software quality.