Marius Manastireanu
Verified Expert in Engineering
Java Developer
Cluj-Napoca, Cluj County, Romania
Toptal member since March 21, 2022
Marius is a software developer with a decade of experience specializing in Java. He has developed solutions for trading systems, healthcare services, retail, and library services. Marius is passionate about automation, innovation, and performance, and he takes ownership of providing the best solutions to enable clients to achieve their goals. He enjoys his work and tackling the challenges that come with it.
Portfolio
Experience
Availability
Preferred Environment
MacOS, IntelliJ IDEA, Slack, GitLab, Jira, Git
The most amazing...
...things I've designed and implemented were automated jobs that saved 80+ hours of work per month for my colleagues.
Work Experience
Senior Java Developer
CodeBliss
- Founded CodeBliss driven by a passion for software development, quality, and performance. Helped the business grow together with us.
- Built an online tutoring platform from scratch. It enables the networking of students and tutors and makes education accessible and convenient for everyone by providing a shared platform with full access to online resources and classes.
- Supported a social fintech platform that allows users to reach their financial goals more easily, enabling their friends and family to integrate with loan providers from the United States.
- Helped an online music licensing platform to succeed in its goals by providing proofs of concept with different architectural approaches, improving the performance and capabilities, and cutting down maintenance costs of the existing platform.
Senior Software Engineer
Tora
- Migrated the codebase of a legacy desktop trading application to Java 11. The application fully supports order and portfolio management, compliance, analytics, and more.
- Came up with technical and functional solutions and implemented them with a strong focus on performance and memory footprint.
- Adapted the trading platform to accommodate new instrument types.
- Refactored code and entire functionalities to improve performance and memory consumption.
- Automated manual flows to increase team performance and reduce time to market.
Java Software Engineer
Yonder
- Worked on multiple projects with local and European clients. Came up with new initiatives and technical propositions for the clients and technical teams.
- Optimized, digitized, and automated the entire process of sharing and exchanging patient data among multiple parties for a Dutch market leader in healthcare services.
- Assisted a major Dutch auto dealership in implementing business automation and supported its daily business flows.
- Integrated complex mathematical formulas and algorithms to optimize and maximize the dealer's profit and provide clients with a clear payment schema and schedule.
- Designed the database and architecture of a small platform that allows users to browse, search, filter, and borrow books from a library in an attractive and user-friendly way.
Experience
Online Music Licensing Platform
https://www.iceservices.comOnline Tutoring Platform
http://app.equalifai.comSocial Finance App
http://letshyve.comNetwork Monitor Application
Trading Platform
https://tora.comPlatform for General Practitioners
Web Platform for a Dutch Car Leasing Company
Web Platform for Maintaining and Borrowing Books from a Library
Gesture-based Navigation System for Google Maps and Street View
https://github.com/mariusmanastireanu/leapmapsEducation
Bachelor's Degree in Computer Science
Technical University of Cluj-Napoca - Cluj-Napoca, Romania
Certifications
Understanding Capital Markets
Skills
Libraries/APIs
Lombok, REST APIs, React, Google Maps, OpenAPI
Tools
IntelliJ IDEA, Slack, Jenkins, GitLab, PyCharm, Jira, RabbitMQ, YourKit, GitHub, Git, Visual Studio, CometChat, Terraform, Amazon Athena, AWS CLI, AWS IAM, Amazon Simple Queue Service (SQS)
Languages
Java, SQL, Python, JavaScript, TypeScript, GraphQL, HTML5, CSS, Java 11
Frameworks
JUnit, JMockit, Mockito, Swing, Spring Boot, Spring, Angular, Vaadin, JPA, Redux, Hibernate, Hadoop
Paradigms
Agile, Scrum, Unit Testing, Design Patterns, REST, Microservices, Database Design, Automated Testing
Platforms
MacOS, Windows, Oracle, Docker, Google Cloud Platform (GCP), Mailgun, Amazon Web Services (AWS), AWS Lambda
Storage
Relational Databases, MySQL, Microsoft SQL Server, Spring Data JPA, PostgreSQL, Spring Data Elasticsearch, Elasticsearch, Spring Data, Amazon DynamoDB
Other
Multithreading, Integration Testing, APIs, Computer Science, Distributed Systems, OOP Designs, Software Design, SOAP, Scripting, API Design, Networking, Image Processing, Artificial Intelligence (AI), Computer Networking, Protocol Buffers, Liferay, Software Project Management, CI/CD Pipelines, Capital Markets, Leap Motion, Java 17, Amazon Kinesis, Back-end, Front-end, Full-stack
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