Headline

Lead SDE @ SaaS Labs | SaaS Platform & Product Engineering | Distributed Systems | AI Workflows | Engineering Leadership

About

I build and scale systems that handle real production load, not just features. As a Lead Software Development Engineer at SaaS Labs, I’ve worked on platform architecture, distributed systems, and growth-focused engineering for products used by thousands of customers. Key outcomes I’ve driven: * Achieved 99.9% uptime by leading a stateless architecture migration across core systems * Reduced manual production intervention by ~80% by building self-healing infrastructure * Migrated 50+ legacy services to NestJS microservices, improving maintainability and release velocity * Cut frontend-backend integration issues by ~35% through shared contract design * Designed systems handling billions of records with stable latency at scale * Reduced fraudulent and low-intent signups by ~45% via onboarding and security improvements My work sits at the intersection of backend systems, infrastructure, and product growth. I partner closely with product, marketing, and data teams to ensure engineering decisions translate into measurable business impact. Beyond execution, I focus on raising engineering standards, mentoring developers, and taking ownership of systems end-to-end in production. Interested in roles where I can drive platform architecture, system design, and team-level impact at scale.

Location

New Delhi

AI stack

claude code

cursor

Work experience

Lead Software Development Engineer at SaaS Labs, Oct 2023 - Present · 2 yrs 11 mos, On-site, → Led core engineering across Signup, Billing, Authentication, Scheduler, Central services, and Growth systems, improving reliability and scale readiness. → Migrated JustCall to a stateless architecture, enabling horizontal scaling across multiple pods and achieving 99.9% uptime. → Built self-healing infrastructure, reducing manual recovery effort by 80% and significantly improving MTTR. → Directed large-scale PHP → NestJS migration across 50+ modules and 18+ database tables, including a full scheduler revamp handling millions of calls. → Architected shared DTO contracts between backend and frontend, reducing integration defects by ~35% and accelerating delivery. → Established CI/CD standards via GitHub Actions and introduced engineering-wide Clean Code practices to improve maintainability and review quality. → Owned authentication and signup systems, implementing fraud detection, OTP verification, and bad-fit account filtering to protect acquisition funnels. → Partnered with Product, Marketing, RevOps, and Data teams to ship PLG experiments, pricing updates, onboarding revamps, and promotional infrastructure. → Mentored engineers across teams, improving code ownership, release cadence, and architectural decision-making.

Senior Software Development Engineer at SaaS Labs, Apr 2022 - Oct 2023 · 1 yr 7 mos, Hybrid, → Built and owned the referral system across cancellations, subscriptions, and signups, contributing to churn reduction and retention improvement. → Designed and launched secure signup & onboarding flows including OTP verification, supporting 10K+ monthly signups. → Delivered billing & pricing infrastructure, including prorated invoices, Stripe 3D Secure, tax invoicing, and addon pricing systems. → Led PLG initiatives across demo page experiments, cancellation flows, ZoomInfo integration, and trial optimization. → Took full ownership of EasyCalendar, managing billing, customizations, integrations, and enterprise onboarding. → Owned Marketplace automation, driving recipe automation and billing sync improvements. → Managed React-based onboarding flows and coordinated backend API integrations. → Collaborated closely with Product and Marketing for GTM launches and conversion improvements. → Introduced better documentation practices and shared development guides to improve team clarity and onboarding.

Software Developer at SaaS Labs, Jan 2020 - Apr 2022 · 2 yrs 4 mos, Hybrid, → Owned Marketplace, Signup, Demo Page, and onboarding modules during early JustCall PLG growth phase. → Implemented Scheduled Calls and Click-to-Call systems handling 100K+ monthly calls with improved reliability. → Simplified billing infrastructure, reducing onboarding time for new engineers by ~40%. → Contributed to early fraud detection and XSS security improvements. → Built upgrade nudges, demo flows, and landing integrations to support product-led acquisition. → Worked cross-functionally with Product and Marketing to support GTM launches and feature rollouts.

Project Intern at Arbunize, Jun 2019 - Jul 2019 · 2 mos, India, → Worked as a Project Intern on PHP-based backend development and learned how real-world web applications are built and maintained. → Gained strong hands-on debugging experience by identifying issues, tracing code flows, checking API responses, and fixing backend errors. → Assisted in working with JSON-based APIs for data exchange between frontend and backend systems. → Worked with database queries, CRUD operations, and server-side request handling. → Built a strong backend flow in backend development, debugging, API handling, and production-style problem solving.

Education

Bachelor of Technology, Computer Science, ABESIT

12th, Science, K.D.B. Public School

Public links

github: https://github.com/arunav25

leetcode: https://leetcode.com/arunavmalhotra1998