JR-192853 .Net developer Senior

Job Description: We are looking for a Senior Product Support Engineer (.NET/C#) to join a fast-paced and collaborative environment supporting a legacy enterprise security product. In this role, you will ensure product stability, customer continuity, and operational responsiveness by providing engineering support for the product's Long-Term Support (LTS) track. You will be responsible for troubleshooting complex customer environments, investigating technical issues, implementing bug fixes, supporting maintenance releases, and helping remove blockers related to on-premises installations and upgrades. This is a great opportunity for professionals who enjoy solving challenging technical problems, working with enterprise-grade software, and collaborating with engineering, support, and SRE teams. Locations: Brazil Colombia Argentina Peru Uruguay Costa Rica Mexico Requirements: 5+ years of professional experience in software engineering, product support, or application maintenance; Strong commercial experience with .NET/C# development and backend/API development; Solid experience working with SQL Server databases; Hands-on experience supporting enterprise-grade, security-sensitive software; Experience troubleshooting complex customer environments, including: Custom networking configurations; Authentication and SSO integrations; Multi-tier application architectures; Experience with Windows Server environments and IIS; Knowledge of application deployment processes, including installers and release management; Understanding of networking concepts such as: Proxies; TLS/SSL; DNS; Experience with software maintenance activities, including: Bug investigation and resolution; Security and compatibility updates; Release support; Production issue troubleshooting; Strong understanding of secure development practices and software patching processes. Nice to have: Experience working with cybersecurity products or Application Security (AppSec) platforms; Experience supporting on-premises enterprise applications; Familiarity with long-term support (LTS) software lifecycle models; Experience collaborating with Support, SRE, and Engineering teams; Experience working under defined SLAs and operational support processes; Knowledge of secure release practices and vulnerability remediation. Other skills: English – Excellent written and verbal communication skills; Ability to work effectively in a global, multicultural, and distributed environment; Strong analytical and troubleshooting skills; Ability to communicate technical issues clearly with both technical and non-technical stakeholders; Proven ability to work independently while collaborating with international engineering teams; Strong ownership mindset and attention to quality. Job Responsibilities: Provide engineering support for the legacy product's Long-Term Support (LTS) track; Investigate, troubleshoot, and resolve complex product issues reported by customers; Perform bug fixes and contribute to maintenance releases; Support security updates, compatibility improvements, and product stability initiatives; Troubleshoot installation, upgrade, and deployment blockers in customer environments; Maintain and optimize backend services built with .NET/C#; Work with SQL Server databases to analyze and resolve data-related issues; Support integrations involving authentication, networking, and enterprise infrastructure; Collaborate with internal Support, Engineering, and SRE teams through defined escalation processes; Maintain technical documentation and follow internal security and quality standards; Provide regular updates on open issues, risks, investigations, and progress. What We Offer: Competitive salary; 100% remote opportunity; Paid time off (PTO), sick leave, and national holidays. Benefits will be communicated during the application process depending on your location; Travel expenses are covered when applicable; Referral program; Paid certification program; Personal development plan (PDP); Access to the language platform. Job ID: JR-192853