Senior Full Stack Software Engineer (.NET)

Fullstack.Net Developer W/ Reactnative 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 InterSources