
Lionel Tesolin
Verified Expert in Engineering
Software Developer
Málaga, Spain
Toptal member since June 26, 2019
With over 18 years in IT, Lionel excels in Kotlin, Java, Spring Boot, AWS, Angular, and cloud computing, bringing expertise to diverse industries. He has a solid technical foundation, is passionate about cutting-edge technologies, and actively contributes to open-source projects. Always eager to stay current, Lionel continuously explores innovative tools and development opportunities.
Portfolio
Experience
- Java - 16 years
- Oracle - 15 years
- Spring - 12 years
- Spring Boot - 6 years
- Docker - 6 years
- TypeScript - 2 years
- Angular - 2 years
- Kubernetes - 2 years
Availability
Preferred Environment
Spring Boot, Java, Git, IntelliJ IDEA, Kotlin
The most amazing...
...thing I've done was migrate a strategic financial application from a multidimensional language (HOLOS) into a modern Java-based web application.
Work Experience
Sales Consultant
Oracle
- Provided pre-sales technical/functional support to prospective clients and customers while ensuring customer satisfaction with minimal supervision, through online/in-person sales efforts.
- Acted as a technical resource for less experienced Internet Sales Consultants.
- Developed and delivered high-quality standard Oracle presentations and demonstrations.
- Presented and articulated advanced product features and benefits, product future direction, and overall Oracle solutions.
- Designed, validated, and presented Oracle software solutions to include advanced product concepts, future direction, and 3rd party complimentary products.
- Developed and managed reference sites through high-quality technical and professional client relationships.
- Supported sales team in online/in-person selling efforts with minimal supervision.
- Developed and delivered proposed solutions to customers, including demo applications made in Angular 7 and Spring Boot.
- Developed and delivered internal applications used on Event and Convention to show how to use Oracle Services with open-source frameworks like Helidon.io, Angular 7, Spring Boot, Kubernetes, and Docker.
Java and Kotlin Engineer
Latch Systems, Inc.
- Developed SMS and push notification system (SNS).
- Implemented a complete local environment for developers with LocalStack.
- Split the monorepo per business domain. Migrated several modules outside the monorepo and changed the entire infrastructure stack from ECS to Kubernetes, updating Gradle and dependencies, and converting from Guice to Spring Boot.
- Migrated several legacy applications from Java to Kotlin.
Technical Architect
CGI
- Created an outage monitor that automatically restart the application on the disaster recovery site.
- Created batch execution for offline execution of long financial consolidations.
- Oversaw the entire cycle of migration from HOLOS to Spring Boot application.
Technical Expert
SFEIR - RBC
- Analyzed existing tech stack and mavenized projects for the Luxembourg Chamber of Deputies.Produced comprehensive documentation and managed deployments on a WebSphere portal.
- Reviewed code, conducted performance testing, and created unit tests at the Royal Bank of Canada. Redeveloped a synchronization mechanism to dynamically exchange bug notifications between two bug-tracking tools.
- Contributed to the development and maintenance of the main fund application using Java and Apache Synapse.
Technical Expert
IKE Consulting - ING Bank
- Created several new services exchanging with the mainframe (SOA).
- Acted as the lead developer of the new internal invoices and payroll management tool for internal employees.
- Developing the entire architecture of the new technology stack (mostly Java and Flex) and the old mainframe.
Technical Architect
Delogica - Banco Inversis
- Served as the lead architect for the migration of the internal/external portal from Web 1.0 to a modern portal in Inversis Bank.
- Developed a new logistic application for CLH (leader company for transportation and storage of oil products).
- Developed the new internal HR application for Inditex company (Zara, Bershka).
Associate
Particules
- Developed and sold a digital signage product for hotels and insurance.
- Rewrote and modernized an existing application in the field of waste collection and recycling and industrial waste.
- Performed installation of the whole hardware infrastructure in hotels and Insurance.
Java Expert
Transhotel
- Worked as a developer for a global tourism provider.
- Tracked and fixed bugs in the platform, doing weekly releases of the back end.
- Integrated our booking system with different partners like Amadeus and eDreams.
Experience
Banco Inversis
Impact Event ChatBot
Door App
https://door.com/Education
Master's Degree in Computer Engineering
Università degli studi di Padova - Padova, Italy
Postgraduate Degree in Physics
Università degli studi di Padova - Padova, Italy
Certifications
Oracle Cloud Infrastructure 2018 Certified Architect Associate
Oracle
Building Cloud Native Applications using Visual Builder Ed 1 LVC
Oracle
Skills
Libraries/APIs
Lombok, OpenAPI, MyBatis, Sikuli, REST APIs, FlatBuffers, Smart GWT, JDBC, JAXB, jQuery, AMF, Axis, Node.js, Java Message Service (JMS), JMX
Tools
Amazon Simple Notification Service (SNS), Amazon Elastic Container Registry (ECR), AWS CloudFormation, MapStruct, Apache Maven, Gradle, Oracle DBaaS, Apache Tomcat, FL Studio, Sahi, Jenkins, Zabbix, Wercker, Git, Spring Tool Suite (STS), MQSeries, Ansible, Docker Swarm, Kibana, Logstash, ActiveMQ, Cron, Unity 5, IntelliJ IDEA
Languages
TypeScript, Java, Python, ActionScript 3, Kotlin, Java 11, PHP 5, C#, JavaScript, XSLT, Bash Script, SQL
Frameworks
Guice, Spring Core, Spring Boot, Spring Security, Spring Batch, Spring AOP, Spring JDBC, Spring, Angular, Flex, gRPC, JUnit, Unity, jMonkeyEngine, PureMVC, Play Framework, AngularJS, Adobe Flex, Hibernate, Ant Design, JSF, Play
Paradigms
Aspect-oriented Programming (AOP), Object-oriented Programming (OOP), AOP, Microservices Architecture
Platforms
Amazon Web Services (AWS), Oracle Cloud Infrastructure (OCI), Godot, Linux, Docker, Ubuntu, Visual Studio Code (VS Code), Oracle Database, Microsoft, Oracle Application Server, Kubernetes, Apache2, Oracle, Oracle Autonomous Data Warehouse
Storage
MongoDB, Spring Data JPA, Spring Data REST, Databases, DB, Essbase, MySQL, PL/SQL, JBoss Infinispan, Elasticsearch, Oracle RDBMS, MariaDB, H2, Apache Derby, Oracle Java Cloud Services, Oracle Integration Cloud Service, Oracle Process Cloud Services, PostgreSQL, NoSQL
Other
Music Composition, Observer Pattern, fruity loop, Function as a Service (FaaS), Platform as a Service (PaaS), Infrastructure as a Service (IaaS), Blaze, ECM, Workflow, WebLogic, SOAP, Scripting, TIBCO, Collectd, Functions, Oracle Digital Assistant, Oracle BPM, Elliptic Curve Cryptography, Algorithms, Methodology, Chatbot Conversation Design
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