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Mihai Moraru
Verified Expert in Engineering
Full-stack Developer
Cluj-Napoca, Cluj County, Romania
Toptal member since May 7, 2021
Bio
Mihai is an expert full-stack React and Node.js developer with 6+ years of experience in building high-quality, scalable, and efficient web applications. He has a proven track record of delivering successful projects for a wide range of clients. His in-depth understanding of front-end and back-end technologies allows him to create seamless and integrated solutions for his clients. Mihai's experience and expertise make him an ideal candidate for any project.
Portfolio
Johnson & Johnson
Node.js, Amazon Web Services (AWS), Apigee, JavaScript, TypeScript, Jenkins
Insomniac Design Inc
Node.js, Next.js, React, GraphQL
Telepass Spa
React, Redux, Redux Toolkit, TypeScript, SCSS, CSS, Sass, Figma, JavaScript
Experience
- React - 8 years
- Node.js - 8 years
- TypeScript - 5 years
- Amazon Web Services (AWS) - 5 years
- Next.js - 5 years
- Tailwind CSS - 3 years
Preferred Environment
IntelliJ IDEA, MacOS, Slack, Jira, Confluence, Git
The most amazing...
...thing I've developed is the lobby and microservices of the #1 online casino platform in the USA.
Work Experience
Senior Node.js Developer
2023 - 2023
Johnson & Johnson
- Developed APIs and proxies for several services and applications to connect and enable them to communicate.
- Achieved 100% success in drastically reducing the costs of operating within the cloud by leveraging AWS capabilities and implementing them within the project.
- Improved developer experience by switching from a polyrepo approach with more than 30 repositories to a monorepo using Nx.
Technologies: Node.js, Amazon Web Services (AWS), Apigee, JavaScript, TypeScript, Jenkins
Senior Full-stack React and Node.js Developer
2022 - 2022
Insomniac Design Inc
- Achieved 100% success in implementing new features with a keen focus on performance.
- Investigated and created guidelines for upcoming features to maintain a scalable architecture.
- Improved the bulk import of new entries by at least 30% by streamlining complexity and refactoring certain sections for greater efficiency.
Technologies: Node.js, Next.js, React, GraphQL
Senior Front-end Developer
2021 - 2022
Telepass Spa
- Reduced the registration and onboarding time from 1 hour to 15 minutes by redesigning the entire flow after in-depth research on client requirements.
- Ensured 100% success in integrating with other Telepass services to allow and manage expenses on every travel-related expense in Italy, including fuel, parking, taxi, toll, train, EV charging, ships, and ferries.
- Achieved a load time of under one second for every page. Improved every aspect of the application, considering performance and optimizing every process from end to end.
- Refactored the state management entirely to using Redux Toolkit and RTK Query. Improved E2E test coverage from 0% to 80% by architecting a transparent and flexible solution.
Technologies: React, Redux, Redux Toolkit, TypeScript, SCSS, CSS, Sass, Figma, JavaScript
Senior Full-stack Developer
2020 - 2021
Betfair Romania Development
- Worked on FanDuel, which reinforced the market leader position with an outstanding 40% market share by launching a rock-solid online casino platform with a fast-paced team.
- Increased gaming revenue by 292%, amounting to $303 million, after the first releases of the mobile MVP and the web platform, by delivering a highly intuitive application with a rock-solid infrastructure.
- Saved an astonishing 3,000 EUR per team member in the project's initial phase by being highly persuasive within my network of top talented developers.
- Improved time-to-first-byte from three seconds to less than one second by designing a custom-tailored solution using server-side rendering principles.
Technologies: JavaScript, Node.js, Express.js, Koa, Amazon Web Services (AWS), Amazon DynamoDB, Amazon S3 (AWS S3), React, Preact, TypeScript, Sass, CSS, Next.js
Full-stack Developer
2019 - 2020
TechSquad
- Achieved 100% success in architecting a highly scalable solution based on Node.js, AWS, and React to handle and monitor all operations.
- Ensured 100% success in integrating the Stripe payment service for every financial operation.
- Discussed projects with the CEO and helped ensure the development team and technologies being selected were aligned with the company's business goals and vision.
Technologies: JavaScript, Bitbucket, React, Node.js, Redux, MongoDB, Amazon Web Services (AWS), Strapi, Sass, Linux, CSS, Next.js, Stripe
Full-stack Developer
2019 - 2019
AROBS Transilvania Software
- Achieved 100% success in creating a new web application 3x faster than the old one as measured by professional performance tools and stated by the clients within a fast-paced SAFe (Scaled Agile Framework) environment.
- Reduced the time of booking and confirming an itinerary to under one hour, compared to the prior period of 1-2 working days.
- Assisted the client in embedding up to 30% more travel agencies following the release of the new application. Managed to ensure 100% safety and zero downtime of the services.
Technologies: JavaScript, React, Node.js, Sass, Redux, Azure, Jira
Full-stack Developer
2017 - 2019
Gentlab
- Made the application one of the top five learning management systems by working in a fast-paced team of five developers and designing a highly-intuitive application, exposing it through both web and mobile interfaces.
- Switched the back-end to a microservice-based architecture and optimized performance by 30% for mobile applications written in React Native.
- Increased the company's profits by over 75% the following year, thanks to the success of the Knolyx application.
Technologies: JavaScript, React, React Native, Redux, Sass, Agile Software Development, Domain-driven Design (DDD), Linux, CSS, MySQL
Experience
Emotion Recognition Software
An application that would identify the emotion a customer feels after visiting a physical store. The application centralizes the data and displays charts and graphs in a dashboard for the store owners to obtain insights about customers' satisfaction levels.
Goal Tracking with Reminders
This is a SaaS platform where users can track personal goals and set reminders via email and SMS. Using this platform, a user can set multiple goals and track their progress and receive help with writing a small message to their future selves to keep on track.
Certifications
MAY 2018 - PRESENT
Software Development Fundamentals
Microsoft
Skills
Libraries/APIs
React, Node.js, Preact, REST APIs, Microsoft Face API, Stripe, Apigee, Salesforce API
Tools
IntelliJ IDEA, Git, Slack, Jira, Confluence, Bitbucket, Redux Toolkit, Figma, Jenkins
Languages
JavaScript, TypeScript, CSS, Sass, SCSS, GraphQL
Frameworks
Redux, Next.js, Express.js, Tailwind CSS, React Native, Koa
Paradigms
Agile Software Development
Platforms
Linux, MacOS, Amazon Web Services (AWS), Mailgun, Azure, Docker, AWS Lambda
Storage
MongoDB, MySQL, Amazon DynamoDB, Amazon S3 (AWS S3), PostgreSQL
Other
API Integration, Strapi, Software Development, Domain-driven Design (DDD)
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