Elvis Sautet

Senior full-stack and product engineer with 6 plus years building scalable, multi-tenant SaaS platforms with TypeScript, Node.js, and React. Currently design, build, and manage a school management platform serving 100 plus schools and 500,000 plus active users, including a custom payment engine and a distributed job scheduler built on BullMQ and Redis. Strong across backend architecture, event-driven and queue-based systems, PostgreSQL, API design, and clean design patterns such as dependency injection and handler registries.

Also experienced integrating LLM and AI features, payment systems including M-Pesa, and driving product growth through performance optimization and data-informed digital marketing. Proven record of shipping reliable systems, leading delivery, and mentoring engineers.

Senior Product Engineer at Enaton Tech (2023-06 – Present)

Design, build, and manage a multi-tenant school management SaaS platform serving 100 plus schools and 500,000 plus active users, owning architecture, delivery, and reliability end to end.

• Built a custom payment engine handling fee collection, M-Pesa and card transactions, reconciliation, and automated receipts, reducing manual billing work for school administrators.
• Engineered a distributed, multi-tenant job scheduler on BullMQ and Redis with priority queues, cron promotion, and cold, hot, and immediate time-routing, powering reliable background jobs such as payment retries, notifications, and report generation.
• Architected the platform using a modular-monolith approach with dependency injection and a handler-registry pattern for scalability, testability, and maintainability.
• Led performance optimization and third-party integrations, increasing user adoption by 20 percent through new features and system enhancements.

Senior Developer at Lamad Motors (2024-06 – 2024-12)

• Led development of a high-performance, multi-tenant car e-commerce platform, improving car sales by 30 percent within 6 months through enhanced user experience and feature delivery.
• Built dynamic car listings, advanced search and filtering, and secure payment integration, increasing user engagement and transaction completion.
• Drove digital marketing with targeted Google Ads and Facebook Ads campaigns and high-conversion content, growing website traffic by 40 percent.

Senior Developer at Charlies Motors (2024-01 – 2024-03)

• Developed and maintained a scalable car listings and sales platform with seamless experiences for buyers and sellers.
• Led digital marketing strategy with targeted ads and content, driving a 25 percent increase in online car inquiries.
• Delivered performance enhancements and feature upgrades that improved platform stability and engagement.

Lead Developer at Wayaap NGO (2023-08 – 2024-03)

• Led development of the Wayaap.org website, establishing a strong digital presence for the charity.
• Built a custom CMS enabling non-technical staff to manage and update content independently, streamlining operations.
• Optimized performance and accessibility across devices, and increased website engagement by 40 percent in the first quarter post-launch.

ICT Intern at Kenya Development Corporation (2021-06 – 2022-01)

• Supported development and maintenance of internal systems and provided technical support across multiple ICT projects.
• Assisted with database management and adoption of new technologies, improving operational efficiency and reliability.

ICT Intern at Tourism Finance Corporation (2020-02 – 2021-01)

• Handled server management and supported development of web-based applications and internal digital tools.
• Streamlined inter-departmental communication by implementing a shared internal platform, improving collaboration and response times.

Bachelor of Science in Software Engineering – Zetech University (2019-01 – 2022-09)