Post a Job
Shadhir Sha
Shadhir Sha

Full Stack and Mobile Software Engineer

Actively looking · Member since 12 Nov 2026
Location
Kandy, Sri Lanka
Desired salary
Confidential
Work preference
Remote Only / Full Time
Experience level
Mid

About

Professional summary

I am a Full Stack and Mobile Software Engineer with more than five years of experience building scalable web and mobile products. I specialize in architecting reliable, high-performance systems that serve large user bases across global markets.

I work across the JavaScript and TypeScript ecosystem, with strong experience in React, React Native, Next.js, Node.js, NestJS, and MongoDB. I enjoy delivering complete solutions from responsive user interfaces and mobile experiences to APIs, authentication, integrations, and cloud infrastructure.

I have led modernization initiatives including decomposing legacy monoliths into microservices and executing zero-downtime database migrations. My work has improved API response times, platform uptime, code quality, and overall system maintainability.

I have hands-on experience integrating enterprise and third-party platforms including Oracle Opera/Simphony, Twilio, Google Maps, Stripe, Firebase, and RevenueCat. I build secure authentication flows using JWT, OAuth, OTP, and social login solutions.

I am also experienced in leading small cross-functional engineering teams, mentoring colleagues, and collaborating with product designers and clients. I value ownership, systems thinking, pragmatic problem solving, and delivering polished products that create measurable business impact.

Notice period: Immediately

Skills

41 capabilities
Android DevelopmentAPI IntegrationAutomated TestingAWSCI CDCloud ArchitectureCSS3DockerElasticsearchFirebaseGCPGraphQLHTML5In App PurchasesiOS DevelopmentJavaJavaScriptJestJWTLeadershipMentorshipMicroservicesMobile DevelopmentMongoDBMySQLNestJSNext.jsOAuthPostgreSQLProblem SolvingPrompt EngineeringPush NotificationsReact NativeReact Testing LibraryRedisREST APIsSQLSystems ThinkingTypeScriptWebhooksZustand

Tech stack & tools

Working toolkit

Application Hosting

Amazon Web Services (AWS)CloudflareFirebaseRedis

Application Utilities

Twilio

Data Stores

MongoDBMySQL

Development

DockerGitGitHubpnpm

Languages & Frameworks

CSS3ExpoGraphQLHTML5JavaScriptNode.jsReactReact NativeTypeScript

Experience

Career history

Software Engineer — Full Stack & Mobile Remotioned Technologies Group Limited

I refactored monolithic modules in a six-plus-year codebase into decoupled NestJS microservices. This reduced data-fetching latency by five times, improved platform stability, and helped achieve 99.9% core uptime.

I led a zero-downtime migration of more than 2 million records to decoupled MongoDB clusters, reducing API query times from 3.5 seconds to under 800 milliseconds. I also architected API integrations with Oracle Opera/Simphony PMS, Twilio, and Google Maps to support real-time hospitality operations processing more than 10,000 daily transactions.

Project Lead (Halal Japan) Nolimit International (Pvt) Ltd.

I lead a cross-functional team of two engineers on Halal Japan, a cross-platform mobile product available on the iOS App Store and Google Play. The application supports more than 100,000 active users.

I built React Native features including real-time barcode scanning and a product directory covering more than 50,000 items with sub-100ms indexing through MongoDB Atlas Search. I implemented RevenueCat subscriptions, JWT-based OTP and social authentication, and a pnpm/Lerna monorepo with GitHub Actions deployments to AWS Lambda, ECR, and Cloudflare.

Full Stack Developer Vsoft Technologies

I delivered more than 10 full-stack web and mobile features for ERP and CRM platforms using the MERN stack, taking solutions from concept through production deployment.

I collaborated with product designers and external clients to turn visual mockups into pixel-perfect responsive web portals. I also established Jest and React Testing Library test suites, increasing code coverage from 45% to 80% and reducing production bug reports by 35%.

Education

Learning history

London Metropolitan University

B.Eng (Hons), First Class Honours, Software Engineering

Bachelor of Engineering with Honours in Software Engineering, awarded First Class Honours.

This professional hasn’t added portfolio projects yet.

This professional hasn’t listed any services yet.

Report this profile

Why are you reporting this profile?
Share
Start a conversation

Create an employer account to send this talent a message about your role.

Create an employer accountSign in
Jobs Talent AI Tools Salaries
Menu