C# Developer

N-iX is a global software development service company that helps businesses across the globe create next-generation software products. The company provides expertise in cloud, data, AI/ML, embedded software, and IoT, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries.

• Remediate security findings across ASP.NET applications (MVC, Web API, Razor Pages), including issues related to secrets management, cryptography, token handling, injection vulnerabilities, and sensitive-data logging;
• Upgrade legacy .NET Framework applications to supported versions and migrate components to .NET 6+/8 where feasible;
• Modernize and stabilize frontend dependencies across Angular, React, TypeScript, and Telerik/Kendo UI codebases;
• Investigate and reverse-engineer brownfield systems, including legacy components, to understand data flows and payment-processing logic;
• Collaborate closely with the client’s retained engineering team, working effectively even in areas with limited documentation or SME coverage;
• Contribute to validation and retest activities by preparing evidence packages, deployment logs, and before/after remediation artifacts;
• Support CI/CD-driven delivery and ensure changes are shipped with appropriate testing, QA validation, and rollback procedures;
• Participate in technical discussions around future platform modernization and integration initiatives.

• 6+ Years of professional experience in .NET development on large-scale production systems;
• Strong expertise in C# and ASP.NET (MVC, Web API, Razor Pages);
• Hands-on experience working with both .NET Framework 4.5.x-era applications and .NET 6+/8 modernization or migration efforts;
• Solid experience with Entity Framework / EF Core;
• Strong frontend skills with Angular, React, and TypeScript;
• Proven experience working on brownfield or legacy modernization projects;
• Practical experience remediating security vulnerabilities and applying secure coding practices;
• Ability to work independently in complex, partially documented environments;
• English B2+;
• Nice to have: Experience in payments, fintech, PCI DSS, or other security-sensitive domains, experience with Azure PaaS services, experience with AWS services, familiarity with Azure AD B2C, experience with Blazor or SignalR, experience with Telerik / Kendo UI components, experience working in M&A, carve-out, or large-scale platform separation programs.

• Flexible working format;
• Competitive salary and compensation package;
• Personalized career growth;
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence);
• Active tech communities with regular knowledge sharing;
• Education reimbursement;
• Memorable anniversary presents;
• Corporate events and team buildings;
• Other location-specific benefits.