Headline

Founding Engineer @ Plotline

About

I’m a full-stack product engineer who thrives in ambiguity. At Plotline, as part of the early team, I helped build the product from 0 to 1, iterate toward PMF over multiple years, and scale it into a multi-million ARR business across India, SEA, and the US. I’ve usually been the person pulled into the hardest gaps: product direction that needs structure, systems that need to scale, customer escalations that need trust rebuilt, teams that need unblocking, or execution that needs to move faster without falling apart later. My work has spanned frontend architecture, product systems, personalization, analytics, journey orchestration, customer-facing problem solving, hiring, onboarding, and mentorship. I’ve also worked closely on identifying product gaps and opportunities, and planned and executed AI-native workflows from idea to production. A few highlights: • Architected and shipped 15+ modules end to end • Built systems ingesting 100M+ events a day and syncing 50M+ user cohorts • Helped build one of the strongest journey orchestration experiences in the market across in-app and off-app channels • Led recovery planning and execution for roughly $500k in revenue after regulatory disruption in India’s gaming sector • Helped grow the engineering team from 4 to 9 engineers • Contributed to compliance efforts across VAPT, SOC 2, and GDPR TL;DR - I’ve spent the last few years building systems that take user data, make decisions on top of it, and trigger actions across multiple channels. If you’re a founder or small team building something ambitious, feel free to reach out at rajat.mandar@gmail.com

Location

Greater Bengaluru Area

AI stack

claude code

claude

cursor

langsmith

mcp

Work experience

Senior Software Engineer at Plotline, Jun 2026 - Present · 3 mos, Bengaluru, Karnataka, India, • Designed, architected, and built the dashboard agent, automating much of the manual work marketers previously handled while planning and executing campaigns. • Revamped the design system and migrated interface-design workflows from Figma to Paper.design, enabling faster iteration on agent-driven experiences and a more consistent, polished UX across the product. • Led hiring for frontend and mobile engineering roles incl. outreach, interviews, and onboarding.

SDE 3 at Plotline, Jun 2025 - Jul 2026 · 1 yr 2 mos, Bengaluru, Karnataka, India, • Designed and built an extensible journey orchestration layer to support multi-channel engagement (Push Notifs, Emails, WhatsApp and In-app messages) • Built a new service to enable content personalisation via external APIs for all in-app channel messaging to unlock several usecases in the BFSI industry. • Optimised several bottlenecked analytics query to unlock upto 27x in performance across the client-facing app. • Revamped the release pipelines for the core dashboard to go from 8+ mins to <2mins. • Led efforts in security compliance audits across all services. • Migrated CI/CD pipelines for 30+ repositories from Gitlab to GitHub Actions, cutting pipeline tooling cost by ~60%

SDE 2 at Plotline, Jun 2024 - Jun 2025 · 1 yr 1 mo, Bengaluru, Karnataka, India, • Built and scaled multiple products from 0 to 1 — including gamification, quizzes, stories, in-app campaigns, surveys, and user journeys — reaching 1B+ monthly end-users. • Architected and shipped an AI-powered MVP laying the foundation for a new product line. • Designed and implemented a scalable dashboard using Redux Toolkit, GraphQL, SCSS, and Next.js, ensuring performance and maintainability. • Contributed to iOS, Android, React Native, and Flutter SDKs, improving cross-platform compatibility and enhancing developer experience. • Led VAPT compliance efforts, aligning engineering processes with stringent security standards. • Mentored engineers and participated in long-term project planning, improving overall team collaboration, execution, and morale. • Played a key role in achieving early product-market fit and scaling the company to a 7-figure ARR within 2 years.

SDE1 at Plotline, Jul 2022 - May 2024 · 1 y 10 mo, Bangalore

SDE Intern at Plotline, Mar 2022 - Jul 2022 · 4 mo, Bangalore

Education

Bachelor of Engineering - BE, Electronics and Communication, Dayananda Sagar College of Engineering, BANGALORE

Class XII, Kumaran's PU College (SKCH)

Public links

github: https://github.com/rajat-plotline

medium: https://medium.com/@rajat-m

youtube.com: https://youtube.com/@rajat_m