Sr. Software Performance Engineer

We’re seeking a passionate and experienced Senior Performance Engineer in development to own overall performance of our systems and solution, leading optimization of software and systems to improve site speed, support scalability, reliability and stability. By analyzing metrics from monitoring tools and working with engineering teams and architects, you will design and implement solutions to improve overall site and system performance, including web sites, APIs, database queries and caching strategies, and lead execution of performance and load tests to validate results and prevent degradations. What You’ll Do Own the performance observability for production and lower environments, identifying and acting on concerning trends. Develop competency across our complete web technologies stack (client, framework, and services). Weigh architectural trade‑offs and apply synchronous and asynchronous design patterns. Monitor, assess and analyze the holistic performance of the application with benchmarking tools. Identify bottlenecks, lead root‑cause analysis, collaborate with developers, automate processes and ensure proper tools to ensure systems meet performance requirements from design to deployment. Own and enhance performance coverage by consulting with developers to identify areas for improvement and expansion. Investigate and diagnose performance issues to identify the root cause of the problems. Clearly document performance results and share actionable insights with developers. Develop datasets and workloads that accurately represent the production environment. Analyze CPU utilization, memory usage, network usage, garbage collection and DB reports to verify application performance. Research and implement best practices, methodologies and tools for performance testing. Explore and pitch product ideas and tech initiatives with cross‑functional teams. Drive UI performance optimization and ensure cross‑browser compatibility. Stay current with emerging technologies and trends and evaluate their potential for adoption. Mentor junior team members and contribute to team growth and development. Your Skills & Abilities (Required Qualifications) Bachelor’s degree in computer science or related field. 5+ years of experience in performance engineering and scalability engineering for cloud‑hosted applications. Strong proficiency with performance tools like K6, JMeter. Strong knowledge of monitoring and observability tools like Data dog, Grafana, Dynatrace. Strong proficiency in scripting languages (ex: Java, JavaScript, Python). Strong technical knowledge of virtualization, storage and networking. Proficiency in profiling all layers of the technology stack (software, OS, network) and optimizing complex applications. Expertise knowledge in cloud & container ecosystem (Azure, Docker, Kubernetes). What Will Give You A Competitive Edge (Preferred Qualifications) Master’s degree in computer science or related field. Hands‑on experience with Chaos Engineering tools like Gremlin. Hands‑on experience with caching‑layer performance tuning. 5+ years of experience in performance engineering, with a proven track record of optimizing system performance across complex environments. Excellent communication and collaboration skills, with the ability to work effectively with developers, product managers, and business stakeholders. Deep expertise in database performance tuning, with a focus on optimizing complex SQL queries. Strong analytical skills for identifying root causes of performance issues and resolving code‑level bottlenecks. Hands‑on experience with observability and monitoring tools; proficiency with Datadog is highly preferred. Proficient in a variety of industry‑standard performance testing tools such as K6, NeoLoad, BlazeMeter, and LoadRunner. Accommodations General Motors offers opportunities to all job seekers including individuals with disabilities. If you need a reasonable accommodation to assist with your job search or application for employment, email us or call us at View phone number on click.appcast.io. In your email, please include a description of the specific accommodation you are requesting as well as the job title and requisition number of the position for which you are applying. Non‑Discrimination and Equal Employment Opportunities (U.S.) General Motors is committed to being a workplace that is not only free of unlawful discrimination, but one that genuinely fosters inclusion and belonging. We strongly believe that providing an inclusive workplace creates an environment in which our employees can thrive and develop better products for our customers. All employment decisions are made on a non‑discriminatory basis without regard to sex, race, color, national origin, citizenship status, religion, age, disability, pregnancy or maternity status, sexual orientation, gender identity, status as a veteran or protected veteran, or any other similarly protected status in accordance with federal, state and local laws. GM does not provide immigration‑related sponsorship for this role. Do not apply for this role if you will need GM immigration sponsorship now or in the future. #J-18808-Ljbffr General Motors