Kashif Mehmood
Verified Expert in Engineering
Software Developer
Dubai, United Arab Emirates
Toptal member since May 4, 2022
With 17+ years of experience delivering high-impact, user-focused applications, Kashif specializes in full-stack development using Ruby on Rails, Node.js, Python, Angular, React, PHP, and AWS. He designs clean, scalable architectures and translates complex business needs into intuitive, maintainable systems—ranging from real-time automation to GPS and geospatial platforms—with a strong focus on code quality, performance, and team enablement.
Portfolio
Experience
- Amazon Web Services (AWS) - 11 years
- Ruby on Rails (RoR) - 10 years
- PostgreSQL - 9 years
- MEAN Stack - 9 years
- Full-stack - 8 years
- PostGIS - 8 years
- MongoDB - 7 years
- Serverless - 2 years
Work Experience
Full-stack Developer
i9 Soft Tech
- Developed and scaled i9Desk, a full-stack edtech platform used across 20+ centers to streamline internal operations, staff communication, and compliance workflows.
- Built a dynamic policy portal with autosave, versioning, and PDF/Word export, reducing manual policy updates by 80% and improving team access.
- Integrated Azure Logic Apps to automate invoice parsing and validation, cutting processing time from hours to minutes across all centers.
- Designed a multi-tenant SaaS architecture to support future growth across multiple childcare providers under one unified platform.
- Migrated infrastructure to AWS (EC2, S3, RDS, CloudFront), improving app performance by 60% and reducing monthly hosting costs.
- Led CI/CD implementation using GitHub Actions and PM2, reducing deployment time from hours to minutes and improving release reliability.
- Integrated BullMQ and Redis-based background jobs for handling policy exports, file conversions, and S3 uploads with zero user downtime.
- Developed a dashboard for admins to track tickets, policies, and compliance tasks, improving visibility and accountability across teams.
Founding Engineer
Insynqiq
- Designed and developed a diagnostic platform to assess relational intelligence in individuals and couples using structured inputs and AI-powered scoring.
- Built a dynamic assessment engine with support for custom question types, conditional logic, and scoring models.
- Integrated a narrative generation system using GPT-4 to produce personalized summaries based on assessment results.
- Created dashboards for therapists and users to track progress, visualize scores, and download structured feedback reports.
- Developed PDF and DOCX export features with cloud upload (S3), enabling offline sharing of results.
- Collaborated with domain experts to encode psychological scoring logic and emotional spectrum markers into the platform.
Web Developer
Arotahi Agribusiness
- Added geospatial map view to the portal, allowing users to draw property areas, fetch different property classes from the database, or utilize APIs to retrieve government-defined mappings.
- Enabled users to either draw boundaries manually or copy polygons from government mappings to define their legal property boundaries.
- Provided functionality for users to create mappings within their legal boundaries, such as defining slope areas or land improvements on their real estate.
- Allowed users to cut, copy, and paste features across different layers, giving them the flexibility to build and reuse existing boundaries for their real estate mappings.
- Enabled users to process all their operations, check the land breakdown of their land areas divided into sub-sections, and finalize the breakdown. Alternatively, they could pro-rata the calculations to keep the final total to the actual value.
Amplify and GraphQL Developer
Global FoodService Inc
- Created an Amazon Personalize dataset with a user personalization recipe to provide personalized search results according to user interactions in the past.
- Crafted another solution in Amazon Personalize with a Personalized-Ranking recipe and a search pipeline on the Amazon OpenSearch domain to provide a re-ranking of OpenSearch results based on past user interactions.
- Used OpenAI text moderation chain to automate user review moderation and used Amazon Simple Email Service (SES) to inform admin when a review was flagged inappropriate.
Full-stack Developer
VenExel Technologies
- Started working as a back-end development-only engineer and later performed multiple roles, managing the architecture for the applications, overseeing junior resources, and managing DevOps and CI/CD pipelines.
- Developed an app in Ruby on Rails to automate day-to-day operations covering extreme weather conditions, including an API for a mobile-facing app, a web portal, and UDP-based console device reporting. It helped municipalities handle their operations.
- Handled multiple ongoing projects developed in Ruby on Rails and MEAN/MERN stack and worked on CI/CD pipelines, dealing with incoming updates and new features. Working closely with clients throughout.
- Managed the app infrastructure end DevOps on AWS, including server-based and serverless environments, databases, and reporting. The major services include EC2, RDS, Aurora, Lambda, API Gateway, Cloud watch, and others.
- Built a MEAN stack-based universally compatible salt-tracking system with ground speed control. Worked directly with the client in deciding the technology and architecture with decisions on DB selections to support the requirements in the best way.
- Built GPS tracking apps in Ruby on Rails and MEAN stack that allows reporting for different types of end-users. Added reporting based on the tracking results to serve end-user requirements from reporting required operations to managing regular ones.
- Integrated Google Maps APIs in multiple projects for Ruby on Rails and Angular for live GPS reporting and geofencing purposes. It enabled users to manage their workloads properly while knowing where they needed to put more effort.
- Developed a completely serverless API in Node.js and deployed it on AWS Lambda. The API was built to keep it robust and accurate while performing complex operations within the provided time limits.
- Deployed web servers on Heroku, EC2, and Elastic Beanstalk, depending upon needs. Initially, applications used Heroku, but with increasing requirements, they were moved to EC2, and even higher requirements were managed using EBS.
- Integrated relational and NoSQL databases for different projects. Deployed databases on RDS, Heroku, and MongoDB Atlas. Migrated whole databases from one service to another when required (e.g., Heroku ended support of MongoDB, so moved it to Atlas).
Senior Software Engineer
Nextbridge
- Worked on multiple eCommerce portals in Magento and MySQL-based environments.
- Communicated with clients directly to gather information and deliver products.
- Launched more than ten apps in three years for different clients.
Software Engineer
Shore10
- Learned new technologies, including working in different frameworks of PHP and complex MySQL queries.
- Had daily meetings and completed the tasks assigned by the line manager.
- Worked on a variety of projects, including e-restaurant and gift portals.
Software Engineer
Uraan Software Solutions
- Learned how to develop professional websites under a team lead.
- Developed portals as a junior developer under a senior lead.
- Learned basic programming techniques and coding conventions while working on actual code.
Experience
Winter Web App
http://winterwebapp.ograapps.comThe client was an enterprise company working in operations for more than 120 years, with more than 400 municipal members.
The main goal was to automate operations documentation for a whole season, along with weather forecasting, reporting, and alerting the system for extreme weather.
It was a mega project with local governments being its target customers and data volume expected to be getting into TBs.
The development team consisted of up to ten members over time, with roles being divided into architect, developers, the QA team, and a manager.
I worked directly with the client to gather all the requirements and product delivery.
Built Weather tracking system and documentation systems as Rails Engines
The product was built keeping in mind the ability of end users, which could be in any age range up to 70 years.
MTS Pro: Universally Compatible Salt Tracking System
The project was built with a focus on extensibility and durability. The team that worked on the project was composed of four people with a sole architect/developer, graphics designer, QA, and manager. The app was extensible and could be integrated with any other similar app with minimal effort, as the API-based design was carefully crafted to allow this. A salt tracking console device was connected to the system, reporting GPS and salting information via HTTP. The system handled further reporting according to the end user's requirements. The technologies used in this system include a vast range of AWS services like Lambda, Cognito, CloudWatch, S3, etc.
Fieldwhiz: Fleet Management System
• IVR: Integrated a Twilio-based IVR and messaging system into the system that would help people perform tasks, such as setting up work orders and logging work hours against the work orders. The system was based on both Twilio IVR and messaging services.
• Salesforce integration: Integrated Salesforce fleet information for the clients into our system and vice versa.
• GPS tracking: An online real-time tracking system for the fleet with information regarding operations performed during patrol hours and suggestions for where improvements are needed.
• Real-time map plotting: Plotted whole patrol information on the map for reporting purposes.
• Routes/geofences defining: Defined geofences for operations to be performed within or outside of them.
• Work-orders management
• Cost calculations
My role varied from being a developer initially to an architect for new features and manager/mentor for junior developers.
Automated Vehicle Location System
http://xilitics.comAsset Panda LLC
https://www.assetpanda.com/HipChip
https://www.hipchip.comI worked as a full-stack developer integrating new designs and features to make the portal look better. I also updated some features on the admin end to make tasks easier.
Education
Master's Degree in Computer Science
Punjab University College of Information Technology - Lahore, Pakistan
Skills
Libraries/APIs
Node.js, React, REST APIs, Sidekiq, jQuery, Google Maps, JSON API, RxJS, Rails Engines, Chart.js, Twilio API, Highcharts, AWS Amplify, Devise, Google Maps SDK, Google Geocoding API, API Development, Ruby on Rails API, AmplifyJS, Complex SQL Queries, SendGrid API, Puppeteer, ActiveRecord, Google Maps API, Stripe, Stripe API, PayPal API, OpenAPI, Salesforce Bulk API, Stripe Connect, D3.js, Jira REST API, Selenium WebDriver, OpenAI API, Socket.IO, Vue, React Redux, Shopify API, Turf.js, Mapbox API, Mapbox GL, Three.js
Tools
Sublime Text 3, Amazon CloudWatch, AWS Command Line Interface (CLI), AWS CloudFormation, AWS IAM, Auth0, Amazon Simple Email Service (SES), Git, Mongoose, Microsoft Access, Docker Compose, Amazon Simple Queue Service (SQS), Amazon CloudFront CDN, GitHub, Bitbucket, MySQL Performance Tuning, NGINX, Amazon Simple Notification Service (SNS), GIS, Cron, Webpack, SendGrid, Zsh, Open Office, Amazon Elastic Block Store (EBS), AWS CodeCommit, RSpec, Turbo, Amazon Cognito, RabbitMQ, Beanstalk, GitLab CI/CD, Jira, Figma, Amazon Elastic Container Service (ECS), AWS Glue, Amazon EKS, Amazon Elastic Container Registry (ECR), Google Analytics, Spree, Ansible, Amazon SageMaker, Amazon OpenSearch, Amazon CloudFront, PM2
Languages
PHP, ECMAScript (ES6), JavaScript, TypeScript, HTML, CSS, Ruby, Haml, SQL, Sass, Twilio Markup Language (TwiML), CSS3, CoffeeScript, Unicorn, Python, HTML5, GraphQL, SCSS
Frameworks
Ruby on Rails (RoR), Ruby on Rails 4, AngularJS, Angular, Express.js, Angular Material, Bootstrap, Vanilla JS, OAuth 2, CodeIgniter, Slim, Ruby on Rails 5, Tailwind CSS, ORMLite, Ruby on Rails 7, Angular 2, Yii, Laravel, Selenium, Material UI, Redux, NestJS, Next.js, Telerik Kendo UI, Ionic, Jest
Paradigms
MEAN Stack, DevOps, REST, Serverless Architecture, Database Design, Object-oriented Programming (OOP), Lambda Architecture, Agile, Requirements Analysis, Automation, Event-driven Architecture, Refactoring, Test Automation, Responsive Web Design (RWD), API/Services Architecture, Testing, Role-based Access Control (RBAC), Microservices Architecture, Object-relational Mapping (ORM), ETL, Unit Testing, Test-driven Development (TDD), Microservices, Scrum, Metaprogramming, Business Intelligence (BI)
Platforms
OS X, Visual Studio Code (VS Code), Web, Amazon EC2, AWS Lambda, Amazon Web Services (AWS), Heroku, MacOS, Twilio, DigitalOcean, Safari, Mapbox, WordPress, WooCommerce, Webflow, Linux, Windows, Docker, AWS Elastic Beanstalk, Google Cloud Platform (GCP), Firebase, Salesforce, New Relic, Kubernetes, Magento API, Vercel, Shopify, Jet Admin, Algolia, Azure
Storage
Databases, PostGIS, MongoDB, MySQL, PostgreSQL, Amazon S3 (AWS S3), Redis, Relational Databases, Database Structure, JSON, Database Modeling, MySQL Server, SQLite, API Databases, Redis Cache, NoSQL, Amazon DynamoDB, Elasticsearch, Microsoft SQL Server, Data Pipelines, GeoServer
Industry Expertise
Web Design
Other
Engineering Software, Web Development, AWS Management Console, AWS DevOps, Amazon API Gateway, Amazon RDS, APIs, Full-stack, Back-end Development, CI/CD Pipelines, API Integration, Data Scraping, Front-end, Pagination, SaaS, Front-end Development, Web Scraping, Scraping, Angular Component Architecture, Architecture, Maps, JSON REST APIs, Angular Bootstrap, Full-stack Development, Back-end, Software Engineering, Lambda Functions, UI Development, Web Applications, Authentication, Progressive Web Applications (PWAs), Cloud, VoIP, Charts, Software Architecture, Data Structures, Software Design, OAuth, Inventory Management, AWS Cloud Architecture, Algorithms, Cloud Platforms, SOAP, Animation, Video Compression, Indexing, Integration, RESTful Services, Cloud Architecture, Code Review, Estimations, Ruby Gems, Ubuntu Server, System Requirements, System Architecture, IMAP, Deployment, Content Management Systems (CMS), Waterfall Methodology, Security, Software Development Lifecycle (SDLC), Automation Framework Development, eCommerce APIs, SDKs, Data Architecture, Performance, Scalability, Design Systems, Responsive Design, GoDaddy, Reports, Design Principles, Third-party APIs, Third-party Libraries, Platform as a Service (PaaS), UI Components, Legacy Code, API Design, ESLint, Navigation, Site Reliability Engineering (SRE), Data, Web Hosting, REST API Clients, Dashboards, Payment Gateways, Version Control, Proof of Concept (POC), Big Data, Website Data Scraping, Product Strategy, Forms, Supabase, Single Sign-on (SSO), Content Delivery Networks (CDN), Data Modeling, API Gateways, Single-page Applications (SPAs), Solution Architecture, Serverless, AWS Certificate Manager, AWS Marketplace, Amazon Route 53, eCommerce, Salesforce Development Community (SFDC), Localization, Stripe Payments, WebSockets, DocumentDB, Technical Leadership, HTML5 Animations, Team Mentoring, Communication, Minimum Viable Product (MVP), Multi-language Support, i18n, OpenID Connect (OIDC), Material Design, User Experience (UX), Leadership, Documentation, Intuit QuickBooks, Team Management, Code Auditing, Webhooks, CSS3 Animation, User Interface (UI), MERN Stack, Upgrades, Online Payments, Team Leadership, Technical Project Management, Payment APIs, Consulting, OpenAI GPT-4 API, Artificial Intelligence (AI), Analytics, CRM APIs, POP3, Atomic Design, SDK Development, Firebase Cloud Functions, Polling, PWA, OpenAI, Finance, Natural Language Processing (NLP), CAPTCHA, Amazon Personalize, Supabase Auth, Mapbox Styling, Mapbox Datasets, Geospatial Data, Geospatial Analytics, Azure AI Document Intelligence, Anthropic, GitHub Copilot Chat
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