Senior Fullstack Engineer (.NET/React)

TL;DR

Senior Fullstack Engineer (.NET/React): Designing and delivering features for an enterprise SaaS security platform with an accent on identity-centric data security and multi-tenant architecture. Focus on building scalable React frontends, .NET backend services, and Azure cloud infrastructure for Fortune 500 customers.

Location: Hybrid (Kraków, Poland)

Company

hirify.global is a data security company providing unparalleled visibility and control by placing identity at the core of its security solutions.

What you will do

• Design and implement end-to-end features using React/TypeScript, ASP.NET Core, and Azure Functions.
• Build modern React frontends following Feature-Sliced Design (FSD) architecture.
• Develop secure data access patterns using SQL Server (EF Core) and Azure CosmosDB.
• Manage Azure platform services including Service Bus, Blob Storage, and Entra ID integration.
• Maintain CI/CD pipelines with GitHub Actions and infrastructure-as-code via Terraform.
• Mentor junior and mid-level engineers and champion AI-driven development processes.

Requirements

• 8+ years of professional software engineering experience in both frontend and backend.
• Strong proficiency in C# / .NET 8/10 and TypeScript / React.
• Experience with SQL Server, NoSQL databases (CosmosDB preferred), and Azure cloud services.
• Understanding of OAuth 2.0, JWT, and multi-tenant SaaS architectures.
• Strong testing discipline with Vitest, Playwright, and xUnit.
• Must be based in or able to work in a hybrid model with regular visits to the Kraków office.

Nice to have

• Exposure to enterprise security domains such as identity security or DSPM.
• Knowledge of Feature-Sliced Design (FSD) frontend architectural methodologies.
• Experience building compliance-ready products (e.g., SOC 2, FedRAMP, HIPAA).

Culture & Benefits

• Competitive health benefits.
• Continuous learning and development opportunities.
• Collaborative, innovative, and team-oriented work environment.
• Regular company town halls for transparency.
• Opportunities for career growth and advancement.