Boldizsar Akos Mezei
Verified Expert in Engineering
Team Lead and Full-stack Developer
Budapest, Hungary
Toptal member since March 17, 2020
Boldizsar is a Java/Scala back-end developer who has worked at Morgan Stanley on a group of microservices. His primary focus is backend development but he is also open for Android development. Boldizsar considers himself a hybrid in the sense that he is highly business-focused. When dealing with tasks, he would rather choose the inconvenient, unusual way to achieve the best outcome both for the client and the project itself.
Portfolio
Experience
- Technical Leadership - 6 years
- Firebase - 6 years
- Microservices - 6 years
- React - 6 years
- TypeScript - 6 years
- Team Leadership - 6 years
- Back-end - 5 years
- Java - 3 years
Availability
Preferred Environment
Linux, MacOS, Visual Studio Code (VS Code)
The most amazing...
...thing I have done was reduce the data size transferred over the network between micro services by 50%.
Work Experience
Lead Back-end Developer
Buildcore.io
- Developed back-end functions that monitor and replicate Farcaster data into a PostgreSQL database hosted on Google Cloud.
- Created triggers that monitor the Farcaster protocol data and publish new data to the protocol and Warpcast.
- Developed back-end endpoints for Farcaster Frames.
- Minted and airdropped community tokens on Base network.
Senior Full-stack Developer and Team Lead
Soonaverse
- Developed an open source platform for communities to create and manage decentralized autonomous organizations (DAOs), NFTs, projects, companies, and markets on the feeless infrastructure of the IOTA network. (github.com/buildcore-io/core).
- Transitioned the back-end from Firebase Cloud Functions and Firebase Firestore to Google Cloud.
- Oversaw launch processes and platform upgrades with no downtime while serving several thousands of crypto enthusiasts.
- Managed a team of 1-3 developers and worked as a full-stack developer.
Team Lead and Full-stack Developer
NXT Mortgage
- Worked as a full-stack developer and tech and team lead.
- Oversaw the complete development lifecycle of the project that relied entirely on a Cloud infrastructure.
- Created CI/CD pipelines that highly increased team productivity.
Java/Scala Developer
Morgan Stanley
- Upgraded a group of microservices to use a more efficient way of serializing and sending data through the web—transferring the same amount of information in a 50% smaller size reduced the execution time and running costs for the firm.
- Collaborated with peers worldwide (India, London, New York) to upgrade a legacy Java system to use the most up-to-date Java, Gradle, and Spring versions.
- Created an API for an immense Scala-based back-end project. This allowed several upstream services to communicate directly with this component, thus allowing the smoothest flow for a million dollars worth of transactions.
- Onboarded Agile methodologies that increased developer productivity by 30% and reduced time to market by 20%.
- Mentored several new team members and junior software developers, both personally and professionally.
Experience
Portfolio Risk and Margin Calculator
Loan Providing Web App
https://raha.fi/lainat/lainojen-yhdistaminen/Client testimonial: "I can highly recommend Boldizsar for demanding software development jobs. Boldizsar cares about his work and you can really see it through his communication and professionalism. He managed to grasp our business context and application very quickly and fixed messy code written by the previous developer. Boldizsar delivered tasks always on time and most important were pro-actively fixing issues or suggesting improvements."
Parseports
In the beginning, I was the back-end developer for this project. As the project grew and we hired more developers, I became a full-stack developer and tech/team lead. My role was to oversee the complete development lifecycle of the project, add and upgrade new features on the back-and-front-end site, and organize tasks among team members.
PHirst App
Initially, I was the back-end developer for this app. My role was to provide a stable and highly scalable back-end service for the iOS/Android-based front end. Soon, as the project grew, I took the initiative and became the tech/team lead and full-stack developer. After that, my job became more complicated as I had to manage the team and be responsible for the Android front end.
Education
Bachelor's Degree in Computer Science
Babeș-Bolyai University - Cluj Napoca, Romania
Skills
Libraries/APIs
React, REST APIs, Node.js, Stripe API, Stripe, Stripe Connect API
Tools
GitHub, Jira, Firebase Authentication, GitLab, GitLab CI/CD, Git, IntelliJ IDEA, Android Studio, Gradle, SendinBlue, Perforce, Mongoose
Languages
Kotlin, SQL, TypeScript, JavaScript, Java, CSS, HTML, Scala, Rust, GraphQL
Frameworks
Jest, Hibernate, Spring 4, Spring, Ktor, React Native, Spring Boot, Flutter, JUnit, Material UI, Google Protocol Buffer, Express.js
Paradigms
Requirements Analysis, Scalable Application, Back-end Architecture, Web Architecture, Asynchronous Programming, Concurrent Programming, Microservices, Microservices Architecture, REST, Agile Software Development, Mobile Development, Agile, Model View ViewModel (MVVM), Clean Architecture, Scrum, Testing, Test-driven Development (TDD), DevOps
Platforms
JVM, Firebase, Linux, Blockchain, Android, Docker, Windows, Visual Studio Code (VS Code), Amazon Web Services (AWS), Azure, MacOS
Storage
Cloud Firestore, Google Cloud, Databases, PostgreSQL, NoSQL, MySQL, MongoDB, Google Cloud SQL
Other
Web App Deployment, Single-page Applications (SPAs), Back-end, Scalable Web Services, Serverless, Lambda Functions, SaaS, Firebase Cloud Functions, Web App UI, Communication, Web Development, Infrastructure, Front-end, User Interface (UI), Software Architecture, API Integration, Back-end Development, RESTful Microservices, Multithreading, APIs, Architecture, Full-stack Development, Cryptocurrency, Minimum Viable Product (MVP), Fintech, Stripe Payments, Team Leadership, Technical Leadership, Remote Team Leadership, Message Queues, Full-stack, Supabase, Cloud Storage, Software Development, IOTA, Farcaster, Warpcast
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