Software engineer

Hi, I'm Johnny Moya.

Full Stack · Backend · Cloud

Full stack software engineer specialized in developing modern, scalable and reliable applications.

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Full stack productsNext.js and React interfaces connected to dependable service layers.

Backend architecture.NET, Spring Boot, Node.js and FastAPI systems designed to scale.

Cloud & dataAWS infrastructure, SQL and NoSQL databases, deployment and observability.

02 — Portfolio

Professional

Professional projects developed for companies. Their source code and visual assets are private.

012024 — 2026
Lex Platform
Enterprise platform for configuring, automating and monitoring file-processing workflows, from ingestion and validation to transformation and secure delivery.
My contribution
I worked across the full stack, defining the execution architecture, building the management interface and implementing processing services and cloud integrations.
What I worked on
Built a visual editor to configure workflows, phases, dependencies and execution rules.
Developed Python services for file validation, transformation and business-rule processing.
Implemented scheduled runs, structured logs, status tracking and phase-level traceability.
Integrated PostgreSQL, Amazon S3 and Auth0 for data, file lifecycle and access control.
Technologies
- Next.js
- TypeScript
- FastAPI
- PostgreSQL
- AWS S3
- Auth0
022023 — 2024
Lexmark Certificate Platform
Backend platform for managing services and automating certificate-generation workflows with flexible records and cloud infrastructure.
My contribution
I developed the backend services, modelled the operational data and supported the infrastructure and integrations required for deployment on AWS.
What I worked on
Implemented Spring Boot services for certificate requests, generation and status management.
Designed MongoDB document structures for flexible service and process records.
Connected backend components and supported their configuration and operation on AWS.
Technologies
- Spring Boot
- Java
- MongoDB
- AWS
032023
Quito Metro Ticketing
Ticketing and operational management platform used during the Quito Metro induction phase, supported by backend services and cloud components.
My contribution
I implemented backend APIs, persistence and cloud integrations for the operational ticketing flows and their supporting processes.
What I worked on
Developed Kotlin and Spring Boot services for ticketing and induction operations.
Modelled MongoDB persistence around the platform's operational workflows.
Integrated AWS services into the backend runtime and deployment environment.
Technologies
- Spring Boot
- Kotlin
- MongoDB
- AWS
042021
Investment Crowdfunding
Investment crowdfunding product with a transactional web experience for managing opportunities, contributions and their related information.
My contribution
I participated in the full stack implementation, building application flows and designing the relational model that supported investment operations.
What I worked on
Built transactional frontend and backend functionality with Angular and .NET Core.
Designed MySQL entities and relationships for opportunities, contributions and investors.
Connected the user-facing flows to the application's business and persistence layers.
Technologies
- .NET Core
- Angular
- MySQL