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 proces