Mactores - Full Stack Engineer

What will you do : Product Development : - Design, build, and maintain full-stack features across the Aedeon frontend (React+Next.js) with a focus on reliability, performance, and user experience. - Collaborate with product management, designers, and backend / DevOps engineers to deliver features from requirement to deployed, tested release. - Participate actively in sprint planning, backlog grooming, and retrospectives with a product-first perspective. Release Ownership : - Own the full delivery of assigned features from development through deployment and post-release validation. - Commit to and meet sprint and release deadlines. - Proactively communicate blockers and risks with enough lead time to mitigate them. - Coordinate with DevOps and QA to ensure the deployment pipeline is ready and the release process is clean and repeatable. Testing and Quality : - Practice test-driven development. - Write tests before the implementation, not after the deadline. - The test defines what "done" means before the code is shipped. - Write detailed, accurate test cases for every feature before deployment, covering functional flows, edge cases, regression scenarios, and integration touchpoints. - Use AI-assisted tools to generate high-quality test cases at scale and validate them for coverage completeness. - Build and maintain automated test suites (E2E, integration, unit) using appropriate testing frameworks. - Integrate them into the CI/CD pipeline. - Conduct thorough deployment validations in staging environments before any production release. - No feature ships without sign-off. Collaboration and Documentation : - Write clear, maintainable code with adequate documentation. - Review pull requests thoroughly and provide constructive feedback. - Document APIs, deployment procedures, test plans, and architectural decisions in Confluence or equivalent tools. - Share knowledge and testing best practices with the team. - Promote a culture of quality and release discipline. What you need for this opportunity : Frontend : - Strong proficiency in React.js: component architecture, state management, hooks, and performance optimization. - Strong proficiency in the Next.js framework. - Experience building real-time interfaces using WebSocket APIs. - Proficiency in TypeScript, HTML5, CSS3, and modern frontend tooling (Vite, Webpack). - Experience implementing OAuth 2.0 flows (GitHub OAuth, AWS Cognito) in the frontend. - Familiarity with responsive design and cross-browser compatibility. Cloud and Infrastructure : - Working knowledge of AWS services: S3, DynamoDB, SES, Cognito, Secrets Manager, CloudWatch. - Comfort navigating multi-account AWS environments (dev / uat / prod) and understanding of VPC networking basics. Testing and Automation : - Test-driven development as a discipline. - Tests written before the code, not after. - Hands-on experience writing and maintaining automated test suites: E2E (Playwright or Cypress), integration tests, and unit tests. - Experience using AI tools (Claude, LLM-based test generators) to accelerate and improve test case quality. - Ability to write structured, accurate test cases from product requirements: functional, edge case, regression, and integration coverage. - Experience integrating automated tests into CI/CD pipelines. You'll be preferred if you have : - Knowledge of Amazon OpenSearch Service or Elasticsearch. - Experience with RabbitMQ or other message queue systems. - Prior work on B2B SaaS products with a structured release process.