Senior Full Stack Software Engineer (.NET)

Overview

_This is a hybrid role - 2 days remote and 3 days in the Malvern, PA office.

_CubeSmart is currently seeking a Senior Software Engineer to join the Information Technology team at our corporate office in Malvern, PA.

Who We Are

At CubeSmart, we’re intentional about culture. You can experience it everywhere from our mission statement of “genuine care” to our “It’s What’s Inside That Counts” tagline to calling each other “teammates” rather than employees. This spirit fosters a fun and collaborative environment that has resulted in our rapid growth and being recognized amongst the top in our industry.

CubeSmart’s award-winning team is made up of people who genuinely care. Teammates care about our customers and the life events and/or business needs they are facing. Teammates are passionate, responsible and understanding. The CubeSmart team is made up of people who have a can-do attitude, are committed to their own success and the success of the company, and lead by example.

If this sounds like a team and culture that matches your personal values and motivations, we want to hear from you.

Responsibilities

We are seeking a highly skilled and adaptable Senior Software Engineer to lead development efforts across our mobile and API platforms. This role is critical to the success of our React Native mobile application and .NET Core API. The role will also support legacy systems that include .NET Framework. The ideal candidate will be a hands-on technical leader with a passion for mentoring, agile practices, and engineering excellence.

Responsibilities Include

• Serve as a core contributor to the server-side and mobile application stack, translating complex functional specifications into detailed technical designs.
• Lead development of APIs, middleware, deployment artifacts, monitoring automation, logging, and performance metrics.
• Actively manage backlog items, anticipate team needs, and ensure timely delivery within budget.
• Participate in sprint planning and agile ceremonies to align team objectives and commitments.
• Maintain and document development environments, tooling strategies, and delivery pipelines.
• Foster a culture of engineering excellence focused on performance, scalability, privacy, and security.
• Conduct detailed design reviews, pull request evaluations, and mentor team members on coding standards and best practices.

Qualifications

• Bachelor’s Degree in Computer Science, Engineering, or related technical field.
• 6–9 years of experience building and supporting omni-channel commerce platforms.
• Strong proficiency in Microsoft .NET stack, JavaScript, and API development (RESTful, JSON, XML, OpenAPI).
• Extensive experience with React Native mobile app development.
• Familiarity with .NET Framework and .NET Core, including legacy system support.
• Experience with DevOps practices and Infrastructure as Code.
• Knowledge of endpoint protocols and security (OAuth2, OIDC, SSL, SSH, LDAP, etc.).
• Hands-on experience with full-stack development (JavaScript/TypeScript, HTML/CSS, Sass, Bootstrap/Tailwind, React).
• Expertise in TDD or BDD, unit testing, integration testing, regression testing, and CI/CD pipelines.
• Experience with project management tools like JIRA or Azure DevOps.
• Cloud-native application development experience, preferably on AWS, but also Azure.
• Familiarity with asynchronous communication (RabbitMQ/Kafka), caching (Redis), and AWS services.
• Strong experience with SQL Server, including writing complex queries, performance tuning, and database design.
• Strong service orientation and 24×7 support mindset.
• Critical thinker and innovative problem solver.
• Product mindset with ability to prioritize, defend decisions, and execute.
• Strong interpersonal skills and ability to mentor and foster inclusive team environments.

Additional Preferred Qualifications

• Experience designing and supporting microservices in hybrid cloud environments.
• Hands-on experience with containerized applications using GitOps, Kubernetes, Service Mesh, and K8s operators.