Khawaja Sajid

Senior Web & eCommerce Developer

Muasa Solutions • Full time

Jan 2021 - Present • 5 yrs 9 mos

As a Senior Web & E Commerce Developer at Muasa Solutions, I was responsible for architecting, developing and delivering high performance digital and eCommerce solutions for clients across multiple industries. I worked closely with clients, designers, marketers and cross-functional teams to transform business requirements into scalable, secure and conversion-focused digital products. Key Responsibilities: Architected and developed scalable web applications, eCommerce platforms, and custom digital solutions. Developed and customised Shopify, Shopify Plus, WordPress and other eCommerce platforms. Built responsive, high-performance interfaces using React, Next.js, JavaScript, TypeScript, HTML5, CSS3 and modern UI frameworks. Developed backend services and integrations using Node.js, Python, REST APIs, GraphQL, and third-party APIs. Integrated payment gateways, CRM/ERP systems, marketing tools, analytics platforms, and external services. Implemented technical SEO, Core Web Vitals, performance optimisation, security and conversion optimisation strategies. Led website migrations, platform upgrades, custom feature development, troubleshooting, and performance improvements. Collaborated with digital marketing, SEO, content, creative and business development teams to deliver integrated digital solutions. Conducted technical analysis, provided solution architecture, estimated development requirements and guided junior developers. Managed Git-based development workflows, deployments, version control, testing, and production releases. Translated client objectives into technically feasible solutions aligned with business growth and ROI.

Web Developer

Savvy Programmers • Full time

Sep 2019 - Aug 2021 • 1 yr 11 mos

Developed scalable, high-performance web applications and eCommerce solutions using modern frameworks and development practices. Architected responsive, SEO-optimised and user-centric interfaces with a strong focus on performance, accessibility and conversion. Integrated REST/GraphQL APIs, third-party services, databases, payment gateways, and custom business logic. Collaborated with clients and cross-functional teams to deliver secure, maintainable, and production-ready solutions.

Senior Web Developer

Brandpa • Freelance

Aug 2019 - Aug 2021 • 2 yrs

Architected and developed scalable, production-grade web applications using modern frameworks, clean architecture, and industry best practices. Engineered high-performance frontends and backend services using React, Next.js, Node.js, TypeScript, Python, and REST/GraphQL APIs. Integrated databases, third-party APIs, payment gateways, cloud services, CI/CD pipelines, and enterprise-level business logic. Optimised applications for scalability, security, performance, SEO, and reliability while delivering maintainable, production-ready solutions.