Sr Software Engineer

Salary: $124000 - 206000 per year Requirements: We need candidates who are currently authorized to work in the United States for any employer, without present or future sponsorship. We require a bachelors degree in Computer Science or a related field plus 4+ years of relevant experience, or a masters degree plus 2+ years, or a Ph.D. plus up to 1 year, or 18+ years of directly related experience. We are looking for hands-on React Native mobile development experience. We need strong proficiency in at least one programming language such as Java, Python, or .NET. We expect experience with cloud platforms such as AWS and distributed systems. We require a solid grasp of system design, APIs, and data modeling. We value experience with automated testing and CI/CD practices. We require the ability to work onsite two days per week. We prefer candidates with experience building large-scale or mission-critical systems. We prefer familiarity with microservices and event-driven architectures. We prefer experience integrating AI capabilities into applications, such as LLM APIs, search, or recommendation systems. We prefer experience improving engineering workflows through automation or AI. We prefer strong debugging and performance tuning skills. We also value experience working in spec-driven or contract-first development environments. We look for the ability to define clear technical specifications such as API contracts, schemas, and workflows. We prefer experience using AI-assisted development tools effectively. We look for the ability to validate, refine, and safely adopt AI-generated outputs. We value understanding of responsible AI use in software development. Responsibilities: We design, develop, test, and deploy software across the full technology stack. We translate business and functional needs into clear technical specifications. We build systems that are scalable, resilient, maintainable, and secure. We apply modern engineering standards and best practices. We break down specifications and features into actionable, estimable work. We deliver value incrementally using Agile methods. We own end-to-end delivery of features and services. We align development with architectural standards and system design. We write and maintain automated unit, integration, and end-to-end tests. We ensure code quality, performance, and adherence to specifications. We troubleshoot and resolve production issues. We identify risks, dependencies, and deviations early. We use AI-assisted tools to improve productivity and code quality. We use AI for code generation, test creation, debugging, and documentation. We validate and refine AI-generated outputs for correctness, security, and maintainability. We help shape team practices around AI usage and prompt engineering. We lead spec-driven development by defining features through structured specifications before implementation. We create and refine technical specs for APIs, contracts, workflows, and data models. We use specifications to align engineering, product, and QA. We leverage specs to support automation, testing, and AI-assisted development workflows. We ensure implementations are traceable to specifications and meet acceptance criteria. We partner with Product, QA, and Architecture teams to deliver solutions. We participate in design discussions and technical decision-making. We communicate progress, trade-offs, and blockers clearly. We contribute to coding standards and engineering best practices. We mentor junior engineers through code reviews and guidance. We continuously learn and adopt new technologies, including AI-driven techniques. Technologies: AI API AWS CI/CD Cloud Support Java LLM Mobile Python React React Native Security microservices ASP.NET Copilot More: We are hiring a Senior Software Engineer to join our Manheim website team, focused on full-stack mobile development and production-ready software delivery. This is a hands-on role where we build scalable, secure, high-performing systems while partnering closely with Product, Architecture, QA, and Engineering. We offer a competitive base salary of $101,500 to $169,100, with potential additional incentive compensation, plus a flexible benefits package that includes unlimited vacation aligned with business needs, seven paid holidays, up to 160 hours of paid wellness time, and other leave options such as bereavement, voting, jury duty, volunteer, military, and parental leave. This role requires working onsite two days per week, and we are an equal opportunity employer, including disability and veterans. last updated 28 week of 2026