I'm Jimmy Baker.

At Uber, I led the Membership Growth team to enhance user engagement and satisfaction through the innovative development of key product features for the Rides and Eats applications. This included the successful launch of Uber One offering attractive benefits like rides cashback, discounts on eats orders, and latest arrival guarantees. I designed scalable, event-driven systems for high performance and created impactful membership upsells that significantly improved user retention and revenue. As the primary on-call engineer, I managed critical incidents, ensuring minimal downtime and conducting thorough investigations to enhance system reliability. Additionally, I orchestrated experiments to optimize upsell conversions, collaborated with product managers to meet project timelines, and developed tools that streamlined engineering workflows. I provided constructive feedback on Engineering Review Documents, mentored junior team members, and advised leadership on strategic project decisions, fostering a culture of collaboration and continuous improvement within the team.

Key Accomplishments

• Led the Membership Growth team where we created product features for the Rides and Eats apps.
• Launched Uber One - Uber's mobility and delivery membership program
• Created membership benefits including Rides cashback, discounts on Eats orders, and latest arrival guarantee.
• Designed and architected event-driven systems processing millions of events per hour.
• Developed membership upsells seen by millions of people every day across the world.
• Served as the primary on-call engineer, responsible for managing and resolving critical incidents during emergencies, ensuring minimal downtime, and maintaining high service availability for millions of users. Leveraged strong problem-solving skills and technical expertise to quickly diagnose issues, coordinate with cross-functional teams, and implement effective solutions under pressure.
• Conducted thorough investigations of incidents impacting business operations and user experience, identifying root causes and providing actionable insights to leadership. Developed and recommended strategies for process improvements and preventive measures, significantly reducing the likelihood of future incidents and enhancing overall system reliability.
• Orchestrated a slew of experiments to determine which variations of a given upsell would yield the most conversions.
• Collaborated with product managers to define project requirements and timelines, ensuring successful delivery of multiple software projects on schedule and within budget.
• Optimized codebase for scalability and performance, reducing application load times by 30% and improving overall user experience.
• Mentored junior team members in engineering best practices, leading to improved coding standards and increased productivity across the team.

• Led a team of software developers in designing and implementing a Postmates Unlimited, a membership program that increased user engagement by 40%.
• Created a partnership feature where Visa customers could get free Postmates Unlimited.
• Collaborated with product managers to prioritize and deliver high-impact features on schedule, resulting in increased user satisfaction.
• Optimized existing codebase to improve performance and scalability, resulting in a 25% reduction in load times using GraphQL and Apollo.
• Mentored junior engineers on best practices for software development, leading to a more efficient and cohesive team dynamic.