I’m Abhishek Kumar, a full stack engineer with 4+ years of experience building and scaling MERN-based SaaS products and enterprise applications. I’ve worked on production systems used by 500+ enterprise customers, designing scalable frontend architectures, secure backend APIs, authentication, analytics, and real-time features with a strong focus on performance and reliability. I enjoy taking products from planning through deployment—architecting multi-tenant systems, optimizing APIs for speed, and improving user outcomes through deliverability and data-driven workflows. Recently, I’ve led end-to-end development of multiple email automation platforms (warmup, audit, and campaign), maintaining very high uptime and delivering releases ahead of schedule while collaborating closely with cross-functional teams.…I’m Abhishek Kumar, a full stack engineer with 4+ years of experience building and scaling MERN-based SaaS products and enterprise applications. I’ve worked on production systems used by 500+ enterprise customers, designing scalable frontend architectures, secure backend APIs, authentication, analytics, and real-time features with a strong focus on performance and reliability. I enjoy taking products from planning through deployment—architecting multi-tenant systems, optimizing APIs for speed, and improving user outcomes through deliverability and data-driven workflows. Recently, I’ve led end-to-end development of multiple email automation platforms (warmup, audit, and campaign), maintaining very high uptime and delivering releases ahead of schedule while collaborating closely with cross-functional teams.WWWW…