Senior Backend Engineer

We’re hiring a Senior Backend Engineer at Semperis.

• Design, implement, test, and deliver end-to-end features for our cloud SaaS product that protects Microsoft Entra , Active Directory, and Microsoft 365 applications.
• Drive improvements in architecture, innovation, and adoption of quality and security best practices.
• Build strong collaboration, share knowledge openly, and contribute to a high‑performing team culture.

• 5+ years of professional experience with .NET Core, delivering production‑ready code at scale.
• Strong expertise in multi‑threading and asynchronous programming (C#).
• Proven experience building and maintaining multi‑tenant SaaS applications on Azure.
• Hands‑on experience with containerized applications running in Kubernetes clusters.
• Background in enterprise applications and distributed systems development.
• Experience writing well‑structured and comprehensive automated test suites.
• Excellent communication skills with both technical and non‑technical stakeholders.

• Experience with additional languages such as Python, Power Shell, or JavaScript.
• Knowledge of Microsoft Active Directory, Entra , Windows Security, and authentication protocols (OIDC, OAuth, SAML, NTLM, Kerberos).
• Familiarity with communication protocols: HTTP, TLS, Signal
  
  R, gRPC.
• Experience with databases such as Open Search or Redis.
• Understanding of secure coding practices and encryption algorithms.

Semperis maintains office locations in several cities across the globe. Candidates who reside within 45 miles of one of our offices—or where the job description specifies a required location—will follow our hybrid work model. This includes working onsite three days per week and remotely the remaining days.

Semperis is an equal‑opportunity employer and will not discriminate against an applicant or employee based on race, color, religion, creed, national origin or ancestry, ethnicity, sex (including gender, pregnancy, sexual orientation, and gender identity), age, physical or mental disability, veteran or military status, genetic information, citizenship, marital status, or any other legally recognized protected basis under federal, state, or local law.

The information collected by the Semperis application is solely to determine suitability for employment, verify identity, and maintain employment statistics. Applicants with disabilities may be entitled to reasonable accommodation under the Americans with Disabilities Act and/or other applicable state or local laws. A reasonable accommodation is a change in the way things are normally done which will ensure an equal employment opportunity without imposing undue hardship on Semperis.

Please inform Semperis representative Anna Taylor, Director of Global Recruiting, if you need assistance completing this application or to otherwise participate in the application process.