Welcome to Sebastião's Portfolio
Software built for those who want reliability, performance and quality.
Sebastião Rusu · Software EngineerGitHub ↗︎LinkedIn ↗︎CV ↗︎
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SEBRU
SEBRU
About

Sebastião Rusu

Born in 2002 in Portimão, Portugal. Software engineer focused on backend and quality: confident, empathetic and available, constantly improving through training, self-study and research.

Passionate about challenges, cooking, sports, cars & technology.

Stack

Favorite Stacks

TypeScriptJavaScriptReactJavaC
AWS Cloud - AWS cloudfront - Lambda · S3 · DynamoDBGraphQLSST · Pulumi
PostgreSQLDockerKubernetesNGINX · CI/CD
SeleniumJUnitRestAssuredPostman · Bruno
Languages

Languages

Portuguese (native) Romanian & Moldovan (family roots) English (fluent) Spanish (basic)

Education

Education

2022 – 2025IADE · Faculdade de Design, Tecnologia e Comunicação

Degree in Software Engineering. GPA15,4 score

2019 – 2022Escola Secundária de Silves

Técnico de Informática e Sistemas. GPA 15

Work

Experience

2020 – 2023VRconstroi · Summer work

Construction seasons that built discipline · designed and developed vrconstroi.com.

2024 · Summer internshipMercedes-Benz.io · QA Engineer

• Led a test automation project, utilizing JUnit, Selenium WebDriver, and RestAssured to enhance software testing efficiency and reliability. • Developed a documentation website using TypeScript and Docusaurus, providing clear and accessible insights into the project for team members and stakeholders. • Managed and executed test cases, ensuring comprehensive coverage and adherence to quality standards. • Worked in Agile environment, leveraging tools like Jira and contributing to the wiki for process documentation and team communication.

Jul 2025 – nowZOI.TECH · Cloud Computing & AI Engineer

Cloud Computing and AI engineering on a serverless AWS architecture (Lambda, S3, DynamoDB). Backend services in TypeScript. Designed and implemented data models using DynamoDB Single Table Design to optimize query patterns and scalability. Migrated existing REST APIs to GraphQL, designing schemas and resolvers to improve data fetching efficiency. Managed infrastructure using Infrastructure as Code with SST and Pulumi. Built automation scripts to streamline operational tasks, including automated release rollback processes. Contributed to CI/CD pipelines and implemented automated tests to ensure reliability of backend services.

Portfolio

Selected projects & things I've built

vrconstroi.com
Done
vrconstroi.comConstruction company website
brainit.dev
Done
brainit.devWeb platform
PeerChat
Currently working
PeerChatPeerChat is a terminal-based P2P chat inspired by apps like Discord and Signal. It enables direct communication between peers, traversing NATs, with fallback relay, STUN discovery, and end-to-end encryption.
aramoth
Currently working
aramoth Aramoth is a chat-first marketing SaaS who manage multiple client projects. It produces opinionated, evidence-backed marketing strategy for each client and keeps it alive over time.

Social

AVAILABLE FOR PROJECTS

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