Alexandru is available for hire
Hire AlexandruAlexandru Marius Musca
Verified Expert in Engineering
Full-stack Developer
Bucharest, Romania
Toptal member since November 5, 2024
Bio
Alexandru is a full-stack developer with 10+ years of experience and a deep passion for creating impactful software solutions. He has worked across various roles and industries, from AI to telecommunications, bringing a comprehensive perspective to software and product development. Alexandru also played a crucial role in developing an AI-powered case study generator—enhancing client contracting processes.
Portfolio
Toptal, LLC
TypeScript, React, Next.js, Node.js, Prisma, PostgreSQL, Kubernetes, BigQuery...
Partnership on AI
React, Gatsby, Algolia, React Apollo, GraphQL, JavaScript, CSS, HTML...
Coastline Academy
Next.js, React, TypeScript, Firebase, GraphQL, E2E Testing, JavaScript, CSS...
Experience
- Databases - 6 years
- Docker - 6 years
- React - 6 years
- Prisma - 5 years
- CI/CD Pipelines - 5 years
- Next.js - 5 years
- TypeScript - 5 years
- E2E Testing - 4 years
Availability
Full-time
Preferred Environment
Slack, MacOS, Linux, Visual Studio Code (VS Code), Terminal, Front-end, Full-stack, Full-stack Development
The most amazing...
...thing I've done is play a crucial role in delivering an AI-powered case study generator that improved the process of contracting new clients.
Work Experience
Senior Full-stack Engineer
2022 - 2024
Toptal, LLC
- Standardized logging and error handling as a tools architectural board lead. Designed a multiphase plan for a large database restructuring and implemented a version history system to support consistency.
- Built React/Next.js components using SSR, SSG, and ISG and published an internal UI library on npm. Developed tools that boosted community engagement and adhered to coding and performance standards.
- Optimized processes and cut operational time by automating SEM tools with Google Ads API and BigQuery. Improved test coverage to 80%, ensuring stable, high-quality code and measurable efficiency gains.
- Led Google Slides and Google Drive API research, establishing the groundwork for development. Streamlined Google Ads API tasks for the SEM team, including campaign management and keyword handling, processing 100,000+ operations with a custom wrapper.
- Handled cross-functional planning, including defining user flows, user stories, and service blueprints. Coordinated with stakeholders and product and data teams to align project scope and deadlines with resource availability.
- Drove cross-team initiatives, boosting productivity by sharing processes and coding standards. Mentored junior engineers, helping enhance skills and technical impact across teams.
- Migrated the repository from private to public with improved documentation, guidelines, and privacy standards. Oversaw Docker image optimizations in Next.js, enabling a reliable self-hosting setup.
Technologies: TypeScript, React, Next.js, Node.js, Prisma, PostgreSQL, Kubernetes, BigQuery, Google Ads API, Docker, E2E Testing, Redis, BullMQ, JavaScript, CSS, HTML, Architecture, Artificial Intelligence (AI), Software Architecture, Front-end, Full-stack, Full-stack Development
Senior Full-stack Engineer
2021 - 2022
Partnership on AI
- Improved the overall performance in delivering a faster and better UI/UX by using code splitting, lazy loading, memoization, prefetching, and image optimization.
- Coordinated with the business owner to refine new feature ideas and develop a viable technical solution.
- Rebuilt and refactored much of the front-end code for improved performance and UX, leveraging React advanced features like memoization, component lazy loading, and custom hooks.
Technologies: React, Gatsby, Algolia, React Apollo, GraphQL, JavaScript, CSS, HTML, Artificial Intelligence (AI), Front-end, Full-stack, Full-stack Development
Senior Full-stack Engineer
2021 - 2022
Coastline Academy
- Led the initiative of adding e2e testing and improving developer experience using a staging environment.
- Implemented major changes to the driving lessons booking system.
- Improved the purchasing system by implementing a similar pattern to event sourcing.
Technologies: Next.js, React, TypeScript, Firebase, GraphQL, E2E Testing, JavaScript, CSS, HTML, Front-end, Full-stack, Full-stack Development
Team Lead
2019 - 2021
Babele
- Collaborated with the business owner to understand the business needs and domain. Developed user stories and user flows that helped create entity models, streamlining the development process and reducing bugs.
- Increased user retention by 23% and achieved 70% faster loading times for pages and API requests after improving UI/UX.
- Hired, trained, and coordinated a team of three engineers. Organized knowledge-sharing and mentoring sessions, created tasks, and managed sprints to reach our deadlines.
- Impacted the effort needed to add new features by leveraging new design patterns to speed up development.
Technologies: React, Web Project Management, Leadership, Redux, RxJS, CI/CD Pipelines, Next.js, JavaScript, CSS, HTML, Architecture, Software Architecture, Front-end, Full-stack, Full-stack Development
Full-stack Engineer
2017 - 2018
Infomoss Europe Ltd
- Worked on a white-label app that allows hotel owners to personalize the app's skin with their hotel's brand design in minutes and manage features like ordering room service, switching TV channels, and changing the room temperature.
- Developed a React Native app for streaming video content. One challenge was integrating a native Android module responsible for the digital rights management content into the React Native project.
- Engaged in designing a system for tracking and managing Intel NUC smart devices mounted on board travel buses. Managed GPS location, collected and reported big data, and handled LTE signal prediction heat maps.
Technologies: React, React Native, CI/CD Pipelines, Redux, Android, ELK (Elastic Stack), Node.js, Redis, Docker, JavaScript, CSS, HTML, Front-end, Full-stack, Full-stack Development
Full-stack Engineer
2015 - 2017
Aznog
- Developed and maintained features for the main product, an Android VoIP calls app. Features included authentication or registration systems, navigation and routing, UI/UX, and ads playback.
- Engaged in DevOps tasks like setting up, deploying, and maintaining Docker-based systems.
- Collaborated as a core team member of a small team, developing internal tools such as an ad delivery platform, a stats and metrics platform, and a data warehouse.
- Contirbuted to designing and building internal tools like the ad delivery system and ETL data warehouse.
Technologies: Android, VoIP, JavaScript, Bash, MongoDB, PHP, C++, CSS, HTML, Front-end, Full-stack, Full-stack Development
Experience
Case Study Generator
A web-based tool developed in Next.js, React, and TypeScript for creating case studies based on generated content. It involved LLM model interactions for processing a large volume of data in a standardized way. I was involved in the initial discovery, planning, architecting, and 3rd-party integrations.
Google Ads Campaign Builder
A Next.js, React, and TypeScript web-based tool that provides a user-friendly UI for creating and managing Google Ads campaigns and resources.
The main functionality included bulk creating and publishing more than 100,000 resources in a reliable and fail-safe way. It also consists of a complex and reliable multi-approval system with built-in notifications, status tracking, and integration with other tools. I led the development of the Google Ads API wrapper, which enabled a high volume of data creation, rollback system, and validation.
The main functionality included bulk creating and publishing more than 100,000 resources in a reliable and fail-safe way. It also consists of a complex and reliable multi-approval system with built-in notifications, status tracking, and integration with other tools. I led the development of the Google Ads API wrapper, which enabled a high volume of data creation, rollback system, and validation.
AI Incident Database Explorer
https://incidentdatabase.ai/An open-source tool for gathering and searching real-world incidents caused by intelligent systems. I was responsible and involved in the following:
• Improving its overall performance in delivering a faster and better UI/UX through code splitting, lazy loading, memoization, prefetching, and image optimization.
• Coordinating with the business owner to refine new features and ideas and devise a viable technical solution.
• Rebuilding and refactoring much of the front-end code for improved performance and UX using React advanced features like memoization, component lazy loading, and custom hooks.
• Improving its overall performance in delivering a faster and better UI/UX through code splitting, lazy loading, memoization, prefetching, and image optimization.
• Coordinating with the business owner to refine new features and ideas and devise a viable technical solution.
• Rebuilding and refactoring much of the front-end code for improved performance and UX using React advanced features like memoization, component lazy loading, and custom hooks.
Education
2011 - 2014
Bachelor's Degree in Cybernetics, Statistics, and Economic Informatics
Bucharest University of Economic Studies - Bucharest, Romania
Skills
Libraries/APIs
React, Node.js, Google Ads API, RxJS
Tools
Prisma, Slack, Terminal, BigQuery, React Apollo, ELK (Elastic Stack)
Languages
TypeScript, JavaScript, HTML, CSS, C++, GraphQL, Bash, PHP
Frameworks
Next.js, Redux, React Native
Storage
Databases, PostgreSQL, Redis, MongoDB
Paradigms
E2E Testing
Platforms
MacOS, Linux, Visual Studio Code (VS Code), Kubernetes, Docker, Firebase, Algolia, Android
Other
Full-stack, Front-end, Full-stack Development, Algorithms, Data Structures, BullMQ, Gatsby, Web Project Management, Leadership, CI/CD Pipelines, VoIP, Architecture, Artificial Intelligence (AI), Software Architecture
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