Available to hire
Hi! I’m Marcello Ruja, a full-stack developer who enjoys turning ideas into reliable software. I’ve built end-to-end web apps across remote teams in the UK, USA, and Romania, focusing on scalable architectures and clean interfaces.
I love refactoring for maintainability, mentoring interns, and using automation, including LLM-powered targets extraction. I’m excited to contribute to teams delivering impactful solutions in software and digital experiences.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Language
English
Advanced
Romanian, Moldavian, Moldovan
Fluent
Work Experience
Frontend Developer at KOIN Network
February 28, 2025 - September 24, 2025Built a React dashboard with authentication, password management, FAQ, profiles, and filtering. Enhanced the Next.js NFT marketplace by integrating features like profile, history, quests, gifts system and ensuring consistency. Optimized the Marketplace by reorganizing its project structure for scalability and performance. Developed a reusable component that enables data refetching based on filtering, fully customizable with sticky columns and highly configurable settings.
Frontend Developer at KOIN Network
February 1, 2025 - September 24, 2025Built a React Dashboard with authentication, password management, FAQ, profiles, and filtering. Enhanced the Next.js NFT marketplace by integrating features like profile, history, quests, gifts system and ensuring consistency. Optimized the Marketplace by reorganizing its project structure for scalability and performance. Developed a reusable component that enables data refetching based on filtering, fully customizable with sticky columns and highly configurable settings.
Full-Stack Developer at DitchCarbon
February 1, 2025 - PresentImplemented an organization-level forecast to predict target achievement based on past emissions and reduction goals. Implemented a feature to edit incorrectly extracted assurances generated by AI. Implemented a Top 10 Emitters feature to help companies prioritize emission reduction investments. Developed a fully automated system using LLMs to extract reduction targets from sustainability reports.
Frontend Developer at KOIN Network
February 1, 2025 - September 24, 2025Built a React Dashboard with authentication, password management, FAQ, profiles, and filtering. Enhanced the Next.js NFT marketplace by integrating features like profile, history, quests, gifts system and ensuring consistency. Optimized the Marketplace by reorganizing its project structure for scalability and performance. Developed a reusable component that enables data refetching based on filtering, fully customizable with sticky columns and highly configurable settings.
Full-Stack Developer at DitchCarbon
February 1, 2025 - PresentImplemented an organization-level forecast to predict target achievement based on past emissions and reduction goals. Implemented a feature to edit incorrectly extracted assurances generated by AI. Implemented a Top 10 Emitters feature to help companies prioritize emission reduction investments. Developed a fully automated system using LLMs to extract reduction targets from sustainability reports.
Full-Stack Developer at DitchCarbon
February 1, 2025 - PresentImplemented an organization-level forecast to predict target achievement based on past emissions and reduction goals. Developed a feature to edit incorrectly extracted assurances generated by AI. Implemented a Top 10 Emitters feature to help companies prioritize emission reduction investments. Built a fully automated system using LLMs to extract reduction targets from sustainability reports.
Frontend Developer at KOIN Network
February 1, 2025 - September 24, 2025Built a React Dashboard with authentication, password management, FAQ, profiles, and filtering. Enhanced the Next.js NFT marketplace by integrating features like profile, history, quests, gifts system and ensuring consistency. Optimized the Marketplace by reorganizing its project structure for scalability and performance. Developed a reusable component that enables data refetching based on filtering, fully customizable with sticky columns and highly configurable settings.
Full-Stack Developer at DitchCarbon
February 1, 2025 - PresentImplemented an organization-level forecast to predict target achievement based on past emissions and reduction goals. Implemented a feature to edit incorrectly extracted assurances generated by AI. Implemented a Top 10 Emitters feature to help companies prioritize emission reduction investments. Developed a fully automated system using LLMs to extract reduction targets from sustainability reports.
Full-Stack Developer at I TO IT
December 31, 2024 - September 24, 2025Leading the refactoring of a platform designed for students preparing for grid-based university exams. Revamping the site’s UI/UX with new features and updated content to boost engagement. Ensured that everything implemented is fully reusable for new platforms like med.grile.info. Mentored two interns by supporting their feature implementation efforts and providing ongoing assistance throughout their development process.
Full-Stack Developer at I TO IT
December 31, 2024 - September 24, 2025Leading the refactoring of a platform designed for students preparing for grid-based university exams. Revamping the site’s UI/UX with new features and updated content to boost engagement. Ensured that everything implemented is fully reusable for new platforms like med.grile.info. Mentored two interns by supporting their feature implementation efforts and providing ongoing assistance throughout their development process.
Full-Stack Developer at I TO IT
December 1, 2024 - September 24, 2025Leading the refactoring of a platform designed for students preparing for grid-based university exams. Revamping the site’s UI/UX with new features and updated content to boost engagement. Ensured that everything implemented is fully reusable for new platforms like med.grile.info. Mentored two interns by supporting their feature implementation efforts and providing ongoing assistance throughout their development process.
Full-Stack Developer at I TO IT
December 1, 2024 - September 24, 2025Leading the refactoring of a platform designed for students preparing for grid-based university exams. Revamping the site’s UI/UX with new features and updated content to boost engagement. Ensured that everything implemented is fully reusable for new platforms like med.grile.info. Mentored two interns by supporting their feature implementation efforts and providing ongoing assistance throughout their development process.
Erasmus+ Hardware Engineering Intern at M.E.P. Europrojects S.L.
July 31, 2021 - September 24, 2025Maintained and optimized CPUs, GPUs, RAM, and storage in a 6-person team, cutting hardware failures by 30%. Boosted system efficiency by 20% through proper application of thermal paste and optimizing hardware performance.
Erasmus+ Hardware Engineering Intern at M.E.P. Europrojects S.L.
July 1, 2021 - September 24, 2025Maintained and optimized CPUs, GPUs, RAM, and storage in a 6-person team, cutting hardware failures by 30%. Boosted system efficiency by 20% through proper application of thermal paste and optimizing hardware performance.
Erasmus+ Hardware Engineering Intern at M.E.P. Europrojects S.L.
July 1, 2021 - September 24, 2025Maintained and optimized CPUs, GPUs, RAM, and storage in a 6-person team, cutting hardware failures by 30%. Boosted system efficiency by 20% through proper application of thermal paste and optimizing hardware performance.
Erasmus+ Hardware Engineering Intern at M.E.P. Europrojects S.L.
July 1, 2021 - September 24, 2025Maintained and optimized CPUs, GPUs, RAM, and storage in a 6-person team, cutting hardware failures by 30%. Boosted system efficiency by 20% through proper application of thermal paste and optimizing hardware performance.
Education
B.Sc. in Computer Science at Politehnica University of Timisoara
October 1, 2023 - July 1, 2026High School Diploma at "Lucian Blaga" National College Sebes
September 1, 2019 - June 1, 2023B.Sc. in Computer Science at Politehnica University of Timisoara
October 1, 2023 - July 31, 2026High School Diploma at Lucian Blaga National College Sebes
September 1, 2019 - June 30, 2023B.Sc. in Computer Science at Politehnica University of Timisoara
October 1, 2023 - July 1, 2026High School at Lucian Blaga National College Sebes
September 1, 2019 - June 1, 2023B.Sc. in Computer Science at Politehnica University of Timisoara
October 1, 2023 - July 1, 2026High School Diploma at "Lucian Blaga" National College Sebes
September 1, 2019 - June 1, 2023Qualifications
Industry Experience
Software & Internet, Education, Professional Services, Media & Entertainment, Other, Telecommunications
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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