Software Engineer II - C#

Alarm.com is the leading cloud-based platform for smart security and the Internet of Things serving over 7.6 million home and business owners. EBS Sp. z o.o., part of Alarm.com, is a rapidly expanding Polish technology company specializing in smart security solutions. The Home Automation Experience (HAX) team manages the full home automation domain across web, mobile, and backend services for customers and dealers.

• Bachelor’s degree in Computer Science, Computer Engineering, a related field, or equivalent work experience.
• At least 2 years of professional software development experience.
• Solid backend engineering skills building and maintaining HTTP APIs/services, including REST and/or GraphQL.
• Strong knowledge of object-oriented design, SOLID principles, and design patterns; experience with C#, .NET Core is a plus.
• Solid database fundamentals including schema design, query optimization, and indexing.
• Fluency with modern engineer toolchains such as version control (Git workflows), CI/CD, package managers, JSON, YAML, and observability tools.
• Testing experience across unit, integration, and end-to-end test layers.
• Experience providing peer feedback and influencing code quality through design and code reviews.
• Engineering craftsmanship focused on mastery through deliberate practice and reflection; willing to revisit architectural decisions.
• Effective communication and collaboration across product, design, and QA teams to drive technical decisions.
• Experience breaking down ambiguous problems into shippable increments.

Bonus points for:

• Experience with “If this Then that” style automation systems.
• Experience with MicroPython, assembly, or low-level programming languages.
• Experience working with enterprise-scale microservices architecture.
• Familiarity with event-driven/distributed system design and Kafka.
• Experience using AI-assisted development tools while maintaining code quality and safety.
• Familiarity with cloud-native infrastructure and containerization (Docker, Kubernetes).
• Exposure to legacy-to-modern framework migrations.
• Working knowledge of application security fundamentals including authentication, authorization, input validation, and secrets handling.

• Develop backend and on-device software for a wide variety of platforms and technologies.
• Participate in the entire project life cycle, from requirements development to deployment with cross-team collaboration.
• Research, evaluate, and apply new technologies and methodologies to solve challenging project goals.
• Write coherent, organized code suitable for a complex, highly abstracted codebase.
• Exercise good judgment to balance quick development and robust solutions.
• Work hard and remain flexible to evolving requirements and collaboration needs.
• Collaborate proactively by bringing ideas to product development.

Only candidates willing to work fully from the office in Krakow with the possibility for occasional remote work. Data related to applicants is retained for a maximum of 3 years after recruitment ends. The data administrator is EBS Sp. z o.o. Alarm.com is an Equal Opportunity Employer.