Open to opportunities

Mohit Ranjan

@mohitranjan

Message

Senior frontend-focused engineer building scalable, high-performance web and mobile experiences.

India

Message

What I'm looking for

I’m looking to lead delivery of scalable, mobile-first web and apps—owning system design, CI/CD and performance. I thrive in Agile teams, collaborating with product and design to ship reliable production features.

I’m a Senior Frontend & Full-Stack Engineer with 4.8+ years designing and building scalable, high-performance web and mobile applications. As a Tech Lead (Individual Contributor) at OakNorth, I engineered the OakNorth Personal Savings App from scratch using React Native (Expo) and TypeScript, delivering end-to-end mobile banking features for 100K+ users while applying system design, microservices architecture, and cloud-native development.

I’m deeply hands-on with TDD, CI/CD, and performance optimization. At Tejas Networks, I built a network topology visualization service from scratch and replaced error-prone CLI workflows with GUI-driven BGP provisioning, reducing operational mistakes by 90% and cutting provisioning time from 5 minutes to 1 minute; I also established automated E2E testing and real-time performance monitoring. I enjoy shipping cross-platform mobile-first solutions with Agile/Scrum teams—partnering with product and design to deliver what users need.

Experience

Work history, roles, and key accomplishments

Current

Tech Lead - Mobile & Web

Current

OakNorth India

Jul 2025 - Present (11 months)

Engineered the OakNorth Personal Savings App from scratch using React Native (Expo) and TypeScript, delivering end-to-end mobile banking features for 100K+ users. Built the engineering foundation (Turborepo, GitHub Actions CI/CD, EAS, TDD with Jest/React Testing Library) and integrated KYC/payment/analytics providers, reducing KYC overhead by 90% and operational costs by 50%.

React Native TypeScript Expo TurboRepo GitHub Actions React Testing Library KYC Integrations (Equifax Experian)Payment APIs (TrueLayer VRP)Performance Optimization

Senior Engineer - Web Apps

Tejas Networks Ltd

Jul 2021 - Jul 2025 (4 years)

Built the network topology visualization service for TejNMS using React.js, Cytoscape, and Express, supporting BSNL’s pan-India 4G/5G MPLS-IP rollout and reducing operational mistakes by 90%. Replaced CLI workflows with GUI-driven BGP provisioning (100% accuracy) and created an RSVP configuration interface, cutting provisioning time from 5 minutes to 1 minute (80% reduction), alongside automated E

React Cytoscape GUI Development BGP Automated Testing Performance Monitoring System Design