Senior Backend Engineer, .NET — Hybrid & Growth

FacilityOS; Annapolis (MD); Híbrido; USD 110.000 - 150.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Health coverage

Hybrid work environment

Career growth & advancement

Catered events & snacks

Birthday & life celebrations

Two annual parties

Descripción de la vacante

FacilityOS is seeking a Sr. Back-End Engineer to accelerate delivery and modernize legacy components. You will design and implement backend services, collaborate across teams, and help shape scalable, secure solutions for a unified facilities platform.

The role requires strong C#/.NET experience, RESTful design, cloud familiarity (Azure/AWS), and a hands-on approach to testing and quality. This is a hybrid position with in-office presence three days a week.

Formación

• Minimum of 6 years of backend.NET Framework/.NET Core development using C#.
• Experience designing RESTful services and cloud-native SaaS/PaaS apps (Azure/AWS).
• Solid SQL Server and T-SQL knowledge; familiarity with microservices and event-driven patterns.

Responsabilidades

• Design, develop, review, and maintain backend web apps and services across the FacilityOS platform.
• Understand legacy systems and plan modernization with safe architectural choices.
• Collaborate with engineers to align with architecture and delivery goals.
• Contribute to modernization using incremental approaches (e.g., Strangler Fig).
• Maintain high code quality through reviews, testing, static analysis, and tooling.
• Lead peer reviews, diagnose issues, and implement sustainable fixes.
• Triage issues across staging and production with root-cause analysis.
• Work with leads, product stakeholders, and PMs to support delivery.
• Research and propose architectural improvements for the platform.

Conocimientos

6+ years .NET backend

RESTful services

Cloud-native (Azure/AWS)

SQL Server/T-SQL

Clean architecture

Unit testing

Event-Driven / Microservices (plus)

Descripción del empleo

FacilityOS is seeking a Sr. Back-End Engineer to accelerate delivery and modernize legacy components. You will design and implement backend services, collaborate across teams, and help shape scalable, secure solutions for a unified facilities platform.

The role requires strong C#/.NET experience, RESTful design, cloud familiarity (Azure/AWS), and a hands-on approach to testing and quality. This is a hybrid position with in-office presence three days a week.