Radomir Lazovic
Verified Expert in Engineering
Software Engineer and Developer
Belgrade, Serbia
Toptal member since December 5, 2024
Radomir is a seasoned software engineer with over 15 years of experience designing and implementing scalable back-end solutions across diverse industries. He specializes in building service-oriented architectures, integrating 3rd-party platforms, and optimizing workflows. Radomir will be a great addition to any team.
Portfolio
Experience
- REST - 18 years
- SQL - 16 years
- Java - 10 years
- Ruby on Rails (RoR) - 9 years
- Ruby - 9 years
- Hibernate - 8 years
- Spring Boot - 8 years
- System Design - 4 years
Availability
Preferred Environment
Linux, Ruby
The most amazing...
...team I've led was a team of developers working on Uber-like functionality but for limousines, covering every major city on the planet.
Work Experience
Senior Software Engineer
Toptal
- Owned end-to-end implementation of integration between the company's SaaS platform and Salesforce.
- Implemented workflow automation between the company's platform and GitLab API.
- Implemented back-end services for syncing data with ID verification providers.
- Collaborated with the front-end team on the implementation of API using GraphQL and REST.
Senior Software Engineer
GroundLink (acquired by Dav El-Boston Coach)
- Contributed to a team tasked with developing the next-generation global limo service management platform, enabling comprehensive fleet and affiliate coverage at major airports and venues worldwide.
- Exposed APIs for mobile clients, 3rd-party integrations, and internal tools. Implemented back-end services for booking, dispatching, and tracking of vehicles.
- Spearheaded the team implementing core business functionality such as auto-assignment, driver tracking, fleet management, and ride pricing.
Software Engineer
Peopleclick (acquired by PeopleFluent)
- Developed an encrypted document repository for internal use.
- Created a system for matching jobs and potential candidates using predefined criteria.
- Developed a system for automatically onboarding new hires using a custom workflow engine.
Experience
Auto Affiliate at GroundLink
The system covers the world and uses a sophisticated matching and pricing algorithm to select the best-suited driver. It collects real-time data such as driver availability, geolocation, and flight times and matches it with user-stored preferences to provide the shortest pickup time.
Real-time data, such as geolocations, are processed by queue and stored in the PostGIS database. For high-demand markets, a cache is used to ensure quick response.
The system includes mobile applications for consumers and drivers, public websites, and call center applications.
Skills
Tools
Git, Jira
Languages
Java, Ruby, SQL, GraphQL, Scala, JavaScript
Frameworks
Ruby on Rails (RoR), Spring Boot, Hibernate, Spring, JPA, Spring 6, Apache Struts, Ruby on Rails 7
Paradigms
REST
Platforms
Docker, Linux, Apache Kafka
Storage
JBoss AS, Redis, PostGIS
Other
System Design, HornetQ
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