Headline

Backend & Systems Engineer | Node.js · MongoDB · AWS · System Design | Building products that serve 30K+ users

About

I build the backend systems that make products work at scale and I think about them like a business owner, not just an engineer. I'm a Full Stack Developer at Admobs, leading backend and system design on GlamGuider, a beauty-tech product serving 30K+ users and 21K monthly actives across web, Android, and iOS. I own how the system is designed, how it scales, and how it holds up in production. What I do: - Design the APIs and architecture that power web, mobile, and internal AI tools - Build systems that drive engagement and revenue : loyalty rewards, retention streaks, affiliate tracking, review moderation - Own the infrastructure : cloud migration, deployment, performance, and cost - Turn product and business needs into technical decisions, not just tickets How I work: I ask a lot of questions before I build, I prefer building the right tool in-house over bolting on a third-party one, and I care most about shipping things that actually move the product. Stack: Node.js · Express · MongoDB · PostgreSQL · AWS (S3, CloudFront) · Nginx · Linux · System Design (HLD/LLD) A few systems I've made public: - loyalty-ledger : append-only reward ledger (https://github.com/maheshkonar8/loyalty-ledger) - aes-256-gcm : encrypting secrets at rest (https://github.com/maheshkonar8/aes-256-gcm) - datamint : system design for a MongoDB reporting SaaS (https://github.com/maheshkonar8/datamint) Open to backend and product engineering roles. I also take on select freelance/consulting work in backend and systems. Reach me at konartech@gmail.com or maheshkonar8 on GitHub.

Location

Mumbai

Work experience

Full Stack Developer at admobs, Feb 2025 - Present · 1 yr 5 mos, Mumbai, Maharashtra, India, - Led backend architecture for GlamGuider, serving 30K+ users, 21K MAU, and ~1.2K DAU across web, Android, and iOS - Designed and own the REST APIs powering all three client platforms plus internal AI tooling - Architected a loyalty wallet (transaction ledger + country-specific rules) and a streak/milestone engine to drive retention - Built moderation pipelines handling 11K+ reviews, plus affiliate tracking and conversion attribution for monetization - Led infrastructure migration to a scalable stack : MongoDB Atlas, AWS S3 + CloudFront improving reliability and cutting media latency - Manage production deployment, Nginx config, and performance monitoring; integrated Firebase (FCM), Meta Conversion API, MSG91, AppTrove - Coordinate across backend, mobile, and AI teams : scoping features, mentoring and reviewing a junior engineer's work

Software Development Engineer (SDE) at MIRA3D, Jan 2024 - Jul 2024 · 7 mos, Goregaon, Maharashtra, India, - Contributed to development of industrial calibration software for precision testing labs using C#.NET. - Independently designed and implemented Node.js backend server for communication between client software and admin systems. - Contributed in Building real-time processing logic handling encoder data, manual inputs, and camera-based measurements. - Integrated Basler camera systems and supported ML-assisted reading capture workflows. - Contributed in Implemented rule-based calibration workflows for standard and custom testing procedures. - Enabled real-time user intervention for precision adjustments during calibration. - Reduced manual effort by 80% through automation features for client communication and response.

Education

Master's degree, Computer Science, Ramniranjan Jhunjhunwala College (Autonomous)

Bachelor's degree, Computer Science, SIES College of Arts, Science & Commerce SION(W)