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Giovany Moreno
Verified Expert in Engineering
Java Developer
Montreal, QC, Canada
Toptal member since October 27, 2020
Bio
Giovany has 11+ years of experience in software development. He is most proficient with Java, Spring Boot, Spring Framework, React, JavaScript, and functional programming, and he also has some experience with Node.js. Giovany has worked with large multinational companies and small startups in their early stages, designing, implementing, deploying to production, and supporting multiple projects in many industries like real estate, finance, construction, automobile, and banking security.
Portfolio
Company in the Airline Industry
Java 8, Java 17, Git, Spring, Spring Boot, Spring Data, Spring Web Services...
Toptal (Screeners)
JavaScript, Java, IntelliJ IDEA, Object-oriented Programming (OOP)
Deep Channel
Java 8, Functional Programming, Object-oriented Programming (OOP), JSON, APIs...
Experience
- Algorithms - 11 years
- Java - 11 years
- Spring Boot - 8 years
- Spring - 8 years
- REST APIs - 8 years
- API Integration - 8 years
- JavaScript - 5 years
- React - 2 years
Work Experience
Senior Software Engineer
2022 - PRESENT
Company in the Airline Industry
- Designed and developed robust APIs for integrating with third-party services such as payment gateways and travel information providers, increasing the range of services offered to airlines.
- Integrated airline feedback mechanisms into the development process, allowing for continuous improvement of software features based on user input, leading to higher customer satisfaction.
- Created a new proxy application that redirects every call regarding flight information, using a new microservice that processes and transforms such information.
Technologies: Java 8, Java 17, Git, Spring, Spring Boot, Spring Data, Spring Web Services, JSON, XML, MySQL, PostgreSQL, REST APIs, REST, SOAP, SOAP APIs, Amazon Web Services (AWS), API Integration, Bitbucket, Jira, Databases, Integration, Back-end, IntelliJ IDEA, Spring MVC, Microservices, AI Agents, Artificial Intelligence (AI), Distributed Systems, Object-oriented Programming (OOP), Claude Code, Kubernetes, AI-assisted Development, Back-end Architecture, Third-party APIs
Developer Screening
2021 - 2022
Toptal (Screeners)
- Performed hundreds of technical screenings for engineers interested in joining Toptal.
- Interviewed and assessed the technical skills of candidates through complex algorithmic tests.
- Analyzed hundreds of profiles to evaluate the candidates' skills.
Technologies: JavaScript, Java, IntelliJ IDEA, Object-oriented Programming (OOP)
Data Integration Engineer
2020 - 2022
Deep Channel
- Worked in the main application of a data-ETL startup with a large codebase to modernize and implement new features and programming patterns.
- Brought functional programming patterns into the project, allowing easier development of new features. Reduced bugs, code redundancy, and time to implement new integrations.
- Documented best practices and programming patterns to raise the quality of future developments.
- Added unit tests for some of the most common and important functionalities.
Technologies: Java 8, Functional Programming, Object-oriented Programming (OOP), JSON, APIs, REST APIs, CI/CD Pipelines, REST, API Integration, TypeScript, Node.js, GitFlow, SQL, Amazon Web Services (AWS), Apache Maven, JUnit, Full-stack, PostgreSQL, Back-end, Bitbucket, Back-end Development, Databases, Integration, IntelliJ IDEA, Microservices, Back-end Architecture, Third-party APIs
Technical Leader, Full Stack
2018 - 2020
Endava
- Worked as a full-stack technical leader in a rapidly-growing construction finance startup company from the US, using React, TypeScript, Redux, SCSS, Node.js, and Ionic. A fast-paced environment where we deployed to production at least once a week.
- Performed functional integrations between the core web app and several smaller apps, including mobile. Led a team of developers and testers and coordinated development and deployments with other distributed teams in the US.
- Started and developed the sales portal of a Fortune 10 company. Designed, implemented, and maintained many REST API integrations, back-end services, and web interfaces using AEM, Java, JavaScript, and jQuery. Worked using CI/CD.
- Helped consolidate the joint work of the local team in Bogotá with San Francisco, defining Agile processes and aligning teamwork. Led the local development work with a team of front-end developers and software testers.
- Fully structured and coordinated Endava's development internship program for 2019. Worked as a career coach for other developers, defining strategies and objectives for the company's technical and non-technical growth.
Technologies: React Hooks, HTML, CSS, Ionic, Node.js, Redux, React, Java, JSON, APIs, REST APIs, CI/CD Pipelines, REST, API Integration, GitFlow, Amazon Web Services (AWS), Apache Maven, JUnit, MySQL, Full-stack, PostgreSQL, Microservices, Back-end, SCSS, Cloud, Adobe Experience Manager (AEM), Bitbucket, Back-end Development, Databases, Integration, Full-stack Development, IntelliJ IDEA, Front-end Development, Web Development, Object-oriented Programming (OOP), Back-end Architecture, Third-party APIs
Senior Software Engineer
2015 - 2017
Prodigious
- Contributed to the back end of a worldwide sales portal of a multinational automobile company, delivering large requirements with high development standards using Java, Spring, HTML, CSS, JavaScript, and jQuery.
- Involved in multiple components of the application: integration systems (using Apigee, MuleSoft, and ETL processes), security framework (IDP authentication, registering, profile management, etc.), and the refactoring/improvement of components.
- Designed and developed an architectural refactor of one of the main components of the application, increasing scalability and reducing development time and effort for future integrations.
- Prepared and presented live demos to product owners from Europe, giving sign-off to a number of features and bug fixes.
- Worked in a small team to deliver a large in-house project to replace a layer of integration systems (MuleSoft layer), which affected many back-end components.
- Collaborated with different teams in times of critical delivery, quickly helped with different tasks, and was recognized by the team members.
Technologies: Spring Boot, Spring, HTML, CSS, jQuery, JavaScript, Java, JSON, APIs, REST APIs, CI/CD Pipelines, REST, API Integration, GitFlow, Amazon Web Services (AWS), Hibernate, JPA, Apache Maven, JUnit, Docker, MySQL, PostgreSQL, Back-end, SCSS, Cloud, Adobe Experience Manager (AEM), Apache Tomcat, Bitbucket, Back-end Development, Databases, Integration, Full-stack Development, MongoDB, IntelliJ IDEA, Spring MVC, Front-end Development, Web Development, Object-oriented Programming (OOP)
Senior Developer
2014 - 2015
Easy Solutions (acquired by AppGate)
- Served as a senior developer for Easy Solutions (acquired by Cyxtera), the world-leading company in comprehensive prevention and detection of electronic fraud, with headquarters in the US.
- Led the design and creation of a new client portal for visualizing real-time information of all the company's products and services. Supported other teams in the process of adaptation of their products to the new portal.
- Designed and created a new reporting platform that allowed the clients to fully customize the presentation of the consolidated data from all the company's products and services.
- Designed the architecture allowing other teams to personalize their reports for their clients.
- Created RESTful web services for the company's main products to be used by different applications, including reports creation and portal's data visualization. Supported and migrated legacy components.
Technologies: Spring, HTML, CSS, jQuery, JavaScript, Java, REST APIs, REST, API Integration, GitFlow, SQL, Hibernate, JPA, Apache Maven, JUnit, Back-end, SCSS, Back-end Development, Databases, Full-stack Development, MongoDB, IntelliJ IDEA, Spring MVC, Front-end Development, Web Development, Object-oriented Programming (OOP)
Project History
Mobile Hybrid Apps for A Construction Finance Startup
I provided technical leadership and full-stack development in a rapidly-growing construction finance startup in the US. I worked with React, TypeScript, Redux, Node.js, SASS, and Ionic framework, using functional programming with fp-ts. It was a fast-paced environment where we deployed to production at least once a week.
I performed functional integrations between the core web app and several smaller apps. This included mobile, leading a team of developers and testers, and coordinating with other distributed teams in the US.
I performed functional integrations between the core web app and several smaller apps. This included mobile, leading a team of developers and testers, and coordinating with other distributed teams in the US.
Education
2008 - 2012
Bachelor of Science Degree in Systems and Computing Engineering
University of Los Andes - Bogota, Colombia
2006 - 2012
Bachelor of Science Degree in Electronic Engineering
University of Los Andes - Bogota, Colombia
Certifications
FEBRUARY 2024 - FEBRUARY 2026
IELTS - 8.0
British Council
Skills
Libraries/APIs
REST APIs, React, jQuery, Node.js, SOAP APIs
Tools
Git, IntelliJ IDEA, Apache Maven, Adobe Experience Manager (AEM), GitHub, Bitbucket, Claude Code, Slack, Jira, Apache Tomcat, Confluence
Languages
Java, CSS, HTML, JavaScript, Java 8, SQL, TypeScript, SCSS, XML
Frameworks
Spring, Spring Boot, JUnit, Redux, Hibernate, JPA, Spring MVC, Ionic
Paradigms
Object-oriented Programming (OOP), REST, Microservices, Back-end Architecture, Functional Programming
Storage
JSON, Databases, MySQL, PostgreSQL, MongoDB, Spring Data
Platforms
Amazon Web Services (AWS), Kubernetes, Docker, MacOS
Other
GitFlow, Software Development, Algorithms, APIs, API Integration, Back-end, Back-end Development, Integration, Third-party APIs, React Hooks, Full-stack, CI/CD Pipelines, Cloud, Front-end, Full-stack Development, Front-end Development, Web Development, AI Agents, Artificial Intelligence (AI), AI-assisted Development, JetBrains IDE, Computer Science, Architecture, IT Systems Architecture, English, Java 17, Spring Web Services, SOAP, Distributed Systems
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