To become a senior software engineering consultant, you need to have a strong background in software engineering, preferably with a bachelor's or master's degree in computer science, software engineering, or a related field. You also need to have at least five years of experience in software development, preferably in different domains, technologies, and methodologies. You need to be proficient in various programming languages, frameworks, tools, and platforms, such as Java, Python, C#, .NET, Angular, React, AWS, Azure, etc. You need to be familiar with software engineering best practices, such as agile, scrum, DevOps, CI/CD, TDD, BDD, etc. You need to have a solid understanding of software architecture, design patterns, data structures, algorithms, security, testing, and performance.
In addition to technical skills, you also need to have excellent business and interpersonal skills. You need to be able to understand the client's needs, goals, and expectations, and translate them into feasible and effective software solutions. You need to be able to communicate clearly and persuasively with different audiences, such as developers, managers, executives, and end-users. You need to be able to lead and mentor teams of software engineers, and foster a collaborative and productive work environment. You need to be able to manage multiple projects, prioritize tasks, and meet deadlines. You need to be able to adapt to changing requirements, technologies, and markets. You need to be able to handle feedback, criticism, and conflict constructively.