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Hi, I’m Adnan Mustafa. I’m a Senior Software Engineer with over 9 years of experience in Ruby on Rails and modern web development, specializing in building scalable, high-performance applications. I design robust system architectures, develop RESTful APIs, and implement real-time features, all while focusing on clean, test-driven code and productive collaboration. I work across the full stack, integrating relational and NoSQL databases, frontend frameworks, and cloud-based deployments. I’m comfortable with AWS, Heroku, and Docker, and I routinely implement CI/CD pipelines and Kubernetes-based orchestration. I’m a proactive mentor and cross-team collaborator who strives for technical excellence and successful product outcomes in Agile/Scrum environments.…Hi, I’m Adnan Mustafa. I’m a Senior Software Engineer with over 9 years of experience in Ruby on Rails and modern web development, specializing in building scalable, high-performance applications. I design robust system architectures, develop RESTful APIs, and implement real-time features, all while focusing on clean, test-driven code and productive collaboration. I work across the full stack, integrating relational and NoSQL databases, frontend frameworks, and cloud-based deployments. I’m comfortable with AWS, Heroku, and Docker, and I routinely implement CI/CD pipelines and Kubernetes-based orchestration. I’m a proactive mentor and cross-team collaborator who strives for technical excellence and successful product outcomes in Agile/Scrum environments.

Adnan Mustafa

Full Stack Developer, Back-End Developer, Front-End Developer, +5

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Hi, I’m Adnan Mustafa. I’m a Senior Software Engineer with over 9 years of experience in Ruby on Rails and modern web development, specializing in building scalable, high-performance applications. I design robust system architectures, develop RESTful APIs, and implement real-time features, all while focusing on clean, test-driven code and productive collaboration. I work across the full stack, integrating relational and NoSQL databases, frontend frameworks, and cloud-based deployments. I’m comfortable with AWS, Heroku, and Docker, and I routinely implement CI/CD pipelines and Kubernetes-based orchestration. I’m a proactive mentor and cross-team collaborator who strives for technical excellence and successful product outcomes in Agile/Scrum environments.…Hi, I’m Adnan Mustafa. I’m a Senior Software Engineer with over 9 years of experience in Ruby on Rails and modern web development, specializing in building scalable, high-performance applications. I design robust system architectures, develop RESTful APIs, and implement real-time features, all while focusing on clean, test-driven code and productive collaboration. I work across the full stack, integrating relational and NoSQL databases, frontend frameworks, and cloud-based deployments. I’m comfortable with AWS, Heroku, and Docker, and I routinely implement CI/CD pipelines and Kubernetes-based orchestration. I’m a proactive mentor and cross-team collaborator who strives for technical excellence and successful product outcomes in Agile/Scrum environments.

Available to hire

Hi, I’m Adnan Mustafa. I’m a Senior Software Engineer with over 9 years of experience in Ruby on Rails and modern web development, specializing in building scalable, high-performance applications. I design robust system architectures, develop RESTful APIs, and implement real-time features, all while focusing on clean, test-driven code and productive collaboration.

I work across the full stack, integrating relational and NoSQL databases, frontend frameworks, and cloud-based deployments. I’m comfortable with AWS, Heroku, and Docker, and I routinely implement CI/CD pipelines and Kubernetes-based orchestration. I’m a proactive mentor and cross-team collaborator who strives for technical excellence and successful product outcomes in Agile/Scrum environments.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Urdu

Fluent

Work Experience

Senior Software Engineer at DMI

August 1, 2022 - June 12, 2024

Managed end-to-end full-stack development and applications engineering processes, delivering comprehensive and high-performing applications. Collaborated closely with clients to gather business and technical requirements. Administered Linux servers on Digital Ocean and AWS platforms, utilizing Docker and Kubernetes for deployment and maintenance. Provided mentorship and conducted code reviews to enhance team efficiency, and implemented innovative front-end solutions with React.JS and Typescript.

Software Engineer at CHIIRP

March 1, 2016 - July 31, 2022

Created initial full-stack codebase and facilitated e-commerce projects using Ruby, React JS, JavaScript, and Python. Led multiple projects ensuring alignment with client needs and technical standards. Successfully launched food delivery applications on web and mobile platforms. Demonstrated continuous learning and strong problem-solving to enhance system functionality.

Senior Software Engineer at DMI

August 1, 2022 - June 1, 2024

Managed end-to-end full-stack development and applications engineering process from scratch to successfully deliver comprehensive and high-performing applications. Established strong collaboration with clients to determine business and technical requirements and ensured the execution of innovative solutions accordingly. Contributed to effective decision-making processes and the success of projects by creating and implementing web application/database structure and delivering expert-level technical guidance. Administered Linux servers on Digital Ocean and AWS platforms, leveraging expertise in server management, maintenance, and optimization to ensure reliable and efficient operations. Utilized modern programming languages and various services for delivering cutting-edge web application solutions. Spearheaded full-stack development using Node JS, Next JS, and Microservices. Led innovative front-end solutions with React.JS and Typescript. Administered DevOps infrastructure leveraging Doc

Software Engineer at CHIIRP

March 1, 2016 - July 1, 2022

Created initial full-stack codebase, establishing the foundation of applications using Ruby, React JS, JavaScript, Typescript, and Python. Facilitated e-commerce and other full-stack projects by building both frontend and backend components. Provided strategic project oversight and leadership, aligning solutions with client requirements and technical standards. Successfully launched food delivery applications on web and mobile platforms. Demonstrated continuous learning and technology adaptation, improving system functionality through strong problem-solving and debugging skills.

Senior Software Engineer at DMI

August 1, 2022 - Present

Manage end-to-end Python full-stack development and application engineering processes to deliver scalable and secure web applications. Collaborate with clients and stakeholders to gather and implement tailored business and technical solutions. Design robust system architectures using Django/Flask, React.js, and PostgreSQL/MySQL. Provide technical leadership and administer Linux-based servers on AWS and Azure, utilizing deployment automation and performance optimization. Apply modern Python technologies, open-source tools, and DevOps best practices to build reliable applications.

Software Engineer at CHIIRP

July 31, 2022 - July 21, 2025

Built the initial full-stack architecture using Python (Django/Flask) and React.js, creating scalable and maintainable codebases. Led development of e-commerce web platforms with responsive frontends and secure backend services, integrating all layers for optimized user experience. Provided technical leadership across projects ensuring business and engineering alignment. Successfully launched web and mobile food delivery platforms, focusing on user experience and performance. Continuously learned new technologies and applied problem-solving to improve system reliability.

Senior Software Engineer at Toptal

October 1, 2025 - Present

Lead end-to-end Ruby on Rails development and application engineering, delivering scalable, secure, and high-performance web applications. Design and implement full-stack architectures using Rails on the backend, React.js on the frontend, and PostgreSQL/MySQL databases. Provide technical leadership and mentorship, enforcing MVC, TDD/BDD, and clean code principles. Manage and optimize cloud deployments on AWS, Heroku, and Digital Ocean, with CI/CD pipelines, Docker, and Kubernetes. Optimize ActiveRecord queries, caching strategies, and background job processing with Sidekiq/Resque; integrate third-party services and APIs; mentor junior engineers within Agile/Scrum.