ÁLvaro M.

Back-end and Systems Engineer

Lead Back-end Developer
8/1/2023 - 3/1/2024

Led technical initiatives to develop an innovative AI employee, focusing on both technical proficiency and value generation. Guided product architecture using Clean Architecture principles with Python and Node.js to build efficient APIs and microservices. Implemented vector database strategies to optimize queries with LLM, while engineering advanced prompt and AI concepts. Utilized Angular for frontend development, and employed the Langchain framework for AI services and GPT-4 language model integration. Evaluated additional technologies to enhance functionality, considering aspects such as learning models and browser performance. Fostered a culture of unit testing and thorough code reviews. Prioritized generating immediate value to attract investors during the bridge investment series, and strategically managed the costs of services, databases, and servers within the constraints of limited resources.

Mid-Level Back-end Developer
10/1/2022 - 8/1/2023

Involved in the architecture and implementation phases of projects, developed specialized expertise in numerous technologies and applications. Contributed to the LinxIO product, a messaging bus tailored for standardization of integrations by collaborating on architecture, development, and deployment. Proficient in TypeScript and NodeJS as primary languages, implementing the MVC design pattern and leveraging Dependency Injection. Ensured data structure consistency with JSON Schema and managed cloud resources using the Serverless Plugin. Utilized AWS services such as CloudFormation, Lambdas, SQS, S3, DynamoDB, and CloudWatch, while employing Kong API Gateway for route management and API authentication. Initially monitored systems via Graylog, Grafana, and CloudWatch, later enhancing observability through Kibana and ElasticSearch from the ElasticStack. Focused on unit testing with Jest to maintain a minimum of 95% code coverage. Played a critical role in deploying ElasticSearch for improved observability of integration operations and inefficiencies. Contributed to a performance optimization and cloud cost reduction project, implementing best practices for AWS services, achieving a 22% cost reduction and faster API response times. Transitioned into a new integration project starting in July 2023, utilizing Java and NodeJS, the Spring Framework (Spring Boot, Spring Data, Spring Security), and Apache NIFI for process automation. Employed Azure technologies including Azure Functions, Service Bus, and Storage Account to enhance the cloud infrastructure.

Software Developer III
3/1/2022 - 7/1/2022

Engaged in the back-end development for a low-code platform aimed at building automation bots, contributing to the technical development of sprint tasks. Developed the application's REST API utilizing Node.js and Express, integrating a NoSQL MongoDB database to store actions. Enhanced the core application's functionalities using Node and Selenium to handle high-complexity business rules. Maintained chained microservices, employing RabbitMQ for messaging communication. Ensured application reliability by developing comprehensive unit tests with Jest, achieving maximum coverage. Provided guidance to junior team members to ensure skill alignment and cohesion within the team.

Mid-Level Back-end Developer
5/1/2021 - 3/1/2022

Developed technical expertise and delivered key accomplishments while working on multiple products. Demonstrated proficiency in planning and executing approaches with a focus on performance and cost-efficiency. Set up cloud environments, managed IAM, and handled services related to the applications.

For the Seu Menu application, designed and developed the back-end using AdonisJs with TypeScript, implementing a Service Layer design standard, and managed the MySQL database. Executed the development of the API and its admin API, supported the project, implemented new features, and eventually integrated Juno for the payment API.

In the development of the new API for the Fertili app, utilized Node with TypeScript adhering to a Service Layer architecture. Employed a serverless architecture through GCP Firebase, and managed MySQL database operations with highly complex queries.

Created new features and integrated BJJ Fanatics with partner stores on Shopify. Enabled the platform to function as a hub for store courses with added streaming and multimedia functionalities. Utilized a completely serverless stack for this project, employing Node and TypeScript for code development. Utilized the Shopify API (REST) for handling webhooks related to product acquisition and user access management. Leveraged Firebase for backend operations, including Firebase Functions, Firestore as a non-relational database, and Firestore Triggers for saving products in the internal database.

Jr Full-stack Developer
3/1/2020 - 6/1/2021

Led a team in developing a web application for the Municipal Health Department and independently developed an application for the HR sector, which successfully attained the ISO 9001 quality seal. Gained advanced expertise in developing REST APIs using Laravel with MVC and Front-End development utilizing Vue.js. Played a significant role in designing and maintaining an automated bot using Node.js and Axios for registering citizens with suspected COVID-19 from the municipal database to the SUS database. Demonstrated effective use of the SCRUM methodology to ensure efficient project management and team collaboration.

None at Federal Institute of Bahia
2019 - 2023