Senior Full Stack Developer

Description

Job Summary: We are seeking a Senior Full Stack Developer to support, evolve, and modernize critical corporate systems, requiring strong analytical capability and autonomy. Key Highlights: 1. Support and evolution of critical systems 2. Dynamic environment with meaningful challenges 3. Technical leadership and resolution of complex problems **Senior Full Stack Developer** **Contractor (PJ) \| Hybrid (with emphasis on in-person work)** **Support, evolution, and modernization of corporate systems** We are looking for a Senior Full Stack Developer to support and evolve critical systems, directly contributing to operational stability and continuous improvement of applications. This role demands strong analytical ability, experience with legacy systems, and autonomy to operate in complex scenarios—identifying root causes, proposing technical improvements, and ensuring reliability of integrations and services supporting the business. **What you will find in this challenge:** * Support and evolution of systems developed in .NET * Implementation and maintenance of corporate APIs and integrations * Advanced code debugging and incident investigation * Fixing failures in system-to-system integrations * Close collaboration with technical and business teams * Participation in prioritization processes and technical discussions * Proposing improvements that enhance stability and reduce operational risks * Working in critical environments requiring rapid analysis and technical decision-making * Continuous contribution to application and team process evolution **Technical Requirements:** **Development and Architecture** * .NET Framework and/or .NET Core * C\# * Legacy systems * REST APIs * SOAP * Web Services * System-to-system integrations * Reading and maintaining existing code **Integration and Orchestration** * Orchestrator * Groovy **Databases** * SQL Server * Complex queries * Stored procedures * Database troubleshooting **Support and Quality** * Advanced debugging * Log analysis * Incident investigation and resolution * Root cause identification * Stabilization of production environments **Platforms** * WordPress **Nice-to-Haves:** * Digibee knowledge * Java knowledge * Experience in modernizing legacy systems * Experience in highly critical corporate environments * Experience with integration platforms **Profile We Seek:** We seek a candidate with strong technical accountability, autonomy, and the ability to operate in high-availability environments requiring rapid problem resolution. We value professionals who take ownership of delivered solutions, perform well under pressure, and independently conduct technical analyses—all while focusing on system stability and evolution. **Other important traits for this role include:** * Technical autonomy * Proactive problem resolution * Prioritization ability * Strong communication with technical teams and business areas * Organization and commitment * Analytical and investigative thinking * Collaboration and sense of responsibility * Results orientation and continuous improvement **What We Expect from a Senior Profile:** * Autonomy in conducting technical analyses and implementing solutions * Ability to stabilize critical environments * Reduction of technical escalations through preventive and corrective actions * Effective identification and resolution of root causes * Ability to propose improvements that add business value and increase application reliability **FMX Benefits:** * Wellhub * Starbem * Avus (extendable to up to 4 dependents) * iFood Club * Paid leave as agreed upon * Monthly performance and results bonus via iFood Benefits **Join FMX** At FMX, we value professionals who assume technical leadership, enjoy solving complex challenges, and contribute to building more stable, scalable, and efficient solutions. If you seek a collaborative, dynamic environment with meaningful challenges, this opportunity may be right for you.