Senior .NET Software Engineers Phoenix a growing technology company in the Phoenix, AZ area, is hiring multiple Senior Full Stack Engineers to support the continued expansion of its platform for the transportation industry. We are working directly with the hiring manager on these searches. This role is 1 day onsite/4 days remote. Summary: This role focuses on building and scaling enterprise grade systems while contributing to technical direction, mentoring engineers, and delivering high impact solutions aligned with business goals. Responsibilities: Design, build, and maintain scalable, secure, high performance applications Develop and integrate APIs and cloud based services (Azure, AWS, or GCP) Support high transaction systems and large scale data environments Contribute to system architecture, coding standards, and best practices Mentor engineers through code reviews and technical guidance Collaborate with Product, Architecture, and DevOps teams Improve system performance, reliability, and development processes BS in Computer Science or equivalent experience 5-8+ years of software engineering experience; Senior or mentoring experience preferred Strong C# and object oriented design skills Experience with RESTful APIs, distributed systems, and cloud platforms Familiarity with enterprise systems and data formats (JSON, XML, CSV) Experience with messaging technologies (Kafka, RabbitMQ) Strong problem solving and communication skills Experience as a tech lead is preferred