**Your mission:** Ensure high availability, stability, security, and performance of production systems through technical root cause investigation, efficient bug fixing, and implementation of continuous improvements. Act with Full Stack autonomy in the analysis and evolution of the existing codebase (with a focus on Java and Node.js), optimizing workflows and accelerating problem resolution through the use of Artificial Intelligence and specification-driven development (SDD), ensuring scalable deliveries aligned with business standards. **What your day-to-day will look like:** * Investigate, diagnose, and fix complex bugs in Full Stack applications, acting on root cause analysis in Java and Node.js services and ensuring definitive fixes that prevent the recurrence of failures; * Refactor and evolve existing code (technical debt), applying design patterns, clean code principles, and secure architecture to increase system maintainability and performance; * Use AI tools applied to the SDD (Spec\-Driven Development) workflow to map legacy behaviors, detail technical specifications of bugs, and generate/review fixes in an assertive and agile manner; * Increase and strengthen automated test coverage (unit, integration, and E2E) for existing features and applied fixes, ensuring efficient regression testing; * Optimize frontend interface performance, fixing rendering bottlenecks, responsiveness issues, UX failures, and adjustments in tracking/usage metrics; * Monitor the production ecosystem, analyzing logs, alerts, and observability metrics to act preventively and ensure rapid response and mitigation of incidents; * Analyze and optimize database routines (relational and non\-relational), identifying slow queries, performing indexing adjustments, and fixing data inconsistencies; * Ensure the application of security best practices, identifying and fixing vulnerabilities in the backend and frontend to maintain the integrity of applications and data; * Actively participate in code reviews (Pull Requests) of fixes and improvements, ensuring that point fixes do not introduce new problems or break API contracts; * Maintain and update technical documentation and system specifications (specs), detailing behaviors and flows to facilitate troubleshooting and the work of the support team; * Collaborate with Support, Product, and Engineering teams to prioritize support demands, align technical impacts of bugs, and enable small functional improvements; * Support the technical evolution of the team, sharing best practices in the use of AI in the development workflow and assisting Junior professionals in resolving daily challenges. **What we are looking for:** * Practical experience in the support and maintenance of backend code (Node.js and/or Java) and frontend frameworks (React or Vue, including state management); * Knowledge and practical application of AI-assisted development workflows using SDD (Spec\-Driven Development) for specification, refactoring, and agile resolution of technical debt and incidents; * Proficiency in JavaScript/TypeScript for identifying execution failures, memory leaks, and applying safe refactorations via Design Patterns; * Experience in analyzing, optimizing, and fixing data in relational (PostgreSQL) and non\-relational (DataStore/NoSQL) databases; * Knowledge of Web architectures (Client\-Server, REST APIs, BFF, Clean Architecture, and MVC) focused on diagnosing integration failures and contract breaks; * Proficiency in writing and maintaining automated tests (unit, integration, and E2E) focusing on regression testing and stability assurance; * Experience with CI/CD workflows (Git, Pull Requests, Deploy) for versioning fixes (hotfixes) and secure production deployment (preferably GCP); * Advanced proficiency in using monitoring and observability tools (e.g., APM, instrumentation, log analysis) for agile location of exceptions and execution errors; * Ability to identify and fix responsiveness, accessibility, and usage tracking failures in the frontend; * Practical application of security best practices (fixing known vulnerabilities) and understanding of scalability in Microservices architectures. **Benefits:** * Health Plan; * Dental Plan; * Online Psychotherapy; * TotalPass; * Life Insurance; * Food Voucher and Meal Voucher (VA/VR); * Discount Partnerships (University and Language Schools); * Worry\-free \- Various Insurances; * No dress code; **\#JOINCONTABILIZEI** **Culture and Development \= We Build Together** Believing that the success of entrepreneurial people is our success, the Guardians of our culture build the best place to work every day. Growing with Contabilizei and telling your own stories! Striving to be 1% better every day is an important value in the rocket. One of the pillars for encouraging the protagonism of our Guardians is done through the Performance Cycle, with Y-shaped Career possibilities, Feedback Culture (1:1\) and tools that help understand opportunities for development and constant evolution of our values. It is important to know that you can be who you are! We are raising awareness and building a psychologically safe environment with Diversity and Inclusion initiatives. We are authentic and believe that this is a responsibility of all Guardians! All our opportunities are open to diverse people in terms of gender identity, color and ethnicity, sexual orientation, origin, people with disabilities (PwD), and all possible intersections.
João Silva
Indeed · HR
João Silva
Indeed · HR
