Roman Sova
Senior Java Developer | Full-Stack & Integration
Salary / Daily rate
Luxembourg
Freelance
Can come onsite
Skills
Languages
About me
Intro
Senior Full-Stack Developer with 20+ years of experience specializing in Java, Spring, and Angular for FinTech and Healthcare sectors. Successfully designed microservices architecture and modernized legacy applications for major clients including Clearstream, EuroControl, and the Department of Veterans Affairs. Delivering scalable, performant solutions with API-first approach and DevOps expertise to transform your complex technical challenges into efficient, future-proof applications.
Work experience
Full Stack Developer
Luxpayroll. Clients: Clearstream, EuroControl, ESM, EIB, Ravago, Credit SuisseFreelance
Oct 2017 - Present
9 years 1 month
Luxembourg
Successfully designed and build brand-new and modernized legacy applications. API-First approach to build large-scale, multi-tiered apps. Swagger, Postman, SmartBear. Built well-bounded Micro-services with Springboot, JPA, Camel, Sql/NoSql, RabbitMq. Performant front-end apps with Angular, NgRx, RxJs, NodeJS, KendoUI. Experienced Ruby on Rails developer custom UI components, Azure clients, REST API. Testing & Automation: JUnit, Mockito, Karma, Jasmine, Protractor, Selenium, Cucumber. Practicing and coaching Agile: TDD, Pair Programming, Best Practices, Scrum, Kanban. Experience with DevOps: CI/CD, IBM Cloud, Docker, Maven, Jenkins, Artifactory, Nexus, Git.
Software Developer (REMOTE), Contractor
DEPARTMENT OF VETERANS AFFAIRS
Apr 2015 - Oct 2017
2 years 7 months
Hawaiian Islands
Designed and Developed a Ruby/Sinatra web app to produce HL7 Messages (2.4 - 2.6 standard). Front-end: AngularJS 1.4, HTML5, UI-Select, Bootstrap 3. Mobile ready, Responsive design. Back-end is written in Ruby, super fast Ox XML Parsers to efficiently process large XML schema, Caching (Diskcached). Sinatra server, REST, JSON. Interface with Ensemble production for HL7 validation. Integration with templates defended in MWB (Messaging Work Bench). Using standard and custom HL7 DataTypes. Flexible configuration through property files, including custom schema, rules for generating custom messages and integration endpoints. Well tested (80% test coverage) and packaged code (GEM). Designed and implemented (Java 8, Spring) services interfacing SSO infrastructure (WebAgent, SiteMinder, LDAP) to provide admin and user interfaces for testing user traits and configuration updates.
Software Developer, Contractor
Eleu Pacific Partners (IPO - VA/DoD)
Dec 2012 - Aug 2016
3 years 9 months
Hawaiian Islands
As a Senior Developer designed and implemented apps to integrate VA/DoD legacy system with modern Enterprise SOA BUS. Wrote number of services to provide interfaces for clients using various messaging standards, such as HL7, CDA, FHIR. Produced Decision Support solutions using OpenCds and Semantic Web frameworks. Data warehouse, BI and Data Visualization experience with QlikView product family. Successfully Implemented number of prototypes and pilots using rapid development - Groovy, Spring Boot, Ruby, Cloud Foundry.
Software Developer, Contractor
U.S. Department of Veterans Affairs
Nov 2008 - Dec 2012
4 years 2 months
Salt Lake City, UT, USA
As a Senior J2EE Developer, provided technical expertise for the VA legacy and modern (HDR) data stores. Provided technical solutions for Electronic Health Record (EHR) to HDR and VA Informatics & Computing Infrastructure (VINCI) initiatives.
Software Developer, Contractor
Overstock.com
Apr 2008 - Dec 2008
9 months
Salt Lake City, UT, USA
As a Technical Consultant developed J2EE components of Overstock’s complex Web Application hosted on state of art UNIX server cluster.
Software Developer, Contractor
Command Information
Oct 2005 - May 2008
2 years 8 months
Herndon, VA 20170, USA
As a Technical Consultant delivered number of successful agile projects to clients such as Fannie Mae, Care First, Capital One, Voxant, Arbitron
Software Developer, Freelance
ScholarOne | Thomson Reuters
Jan 2004 - Jan 2005
1 year 1 month
Charlottesville, Virginia Area
Worked on releases and new features for ScholarOne Manuscript Central online application. Weblogic, Struts, Spring, Hibernate.
Application Architect
Jenzabar
Feb 2003 - Dec 2004
1 year 11 months
Harrisonburg, VA, USA
Team lead and Architect for the Admission module. SWING, Middle tier, J2EE EJB, Servlets, JMS.
Software Developer
Aether Systems
Jul 1998 - Mar 2003
4 years 9 months
Owings Mills, MD, USA
As a Mobile Software Developer built edge-cutting wireless applications for Charles Schwab, Merrily Lynch, Bear Stearns.
Education
University of Maryland
Bachelor of Science
1998 - 2000
2 years 1 month
Moscow State Technical University
Bachelor of Engineering (B.E.)
1984 - 1990
6 years 1 month
Licenses & certifications
Ruby on Rails 6 Essential Training
Issued: Nov 2021
Elasticsearch Essential Training
Issued: Aug 2021
Cloud Computing: Core Concepts
Issued: Aug 2021
AWS Essential Training for Developers
Issued: Aug 2021
Cassandra Data Modeling Essential Training
Issued: Jan 2020
Docker: Continuous Delivery
Issued: Jun 2019
Developing and Delivering Software with Docker (8 course path)
Issued: Jun 2019
Spring: Spring Cloud
Issued: Apr 2019
Spring: Design Patterns
Issued: Apr 2019
Spring Developer
Issued: Apr 2019
Kubernetes: Microservices
Issued: Apr 2019
JHipster: Build and Deploy Spring Boot Microservices
Issued: Apr 2019
Extending, Securing, and Dockerizing Spring Boot Microservices
Issued: Apr 2019
Cloud Native Twelve-Factor Applications
Issued: Apr 2019
Spring: Spring Security
Issued: Mar 2019
Spring: Framework In Depth
Issued: Mar 2019
Angular: Material Design
Issued: Feb 2019
Spring Boot Essential Training
Issued: Jan 2019
Microservices Foundations
Issued: Jan 2019
Learning Kubernetes
Issued: Jan 2019