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I’m Aymen El Kadioui, a Senior Software Engineer with 5+ years of experience building SaaS platforms using TypeScript, Node.js, NestJS, React, and AWS. I deliver high-performance backend systems with API response times under 200ms and have shipped internal developer platforms, including a drag-and-drop platform builder that reduced custom development time by 60%. I’ve led architecture and development work across product stacks, improving reliability, scalability, and time-to-market for multi-environment deployments.…I’m Aymen El Kadioui, a Senior Software Engineer with 5+ years of experience building SaaS platforms using TypeScript, Node.js, NestJS, React, and AWS. I deliver high-performance backend systems with API response times under 200ms and have shipped internal developer platforms, including a drag-and-drop platform builder that reduced custom development time by 60%. I’ve led architecture and development work across product stacks, improving reliability, scalability, and time-to-market for multi-environment deployments.

Aymen El Kadioui

Web Developer, Back-End Developer, Front-End Developer, +2

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I’m Aymen El Kadioui, a Senior Software Engineer with 5+ years of experience building SaaS platforms using TypeScript, Node.js, NestJS, React, and AWS. I deliver high-performance backend systems with API response times under 200ms and have shipped internal developer platforms, including a drag-and-drop platform builder that reduced custom development time by 60%. I’ve led architecture and development work across product stacks, improving reliability, scalability, and time-to-market for multi-environment deployments.…I’m Aymen El Kadioui, a Senior Software Engineer with 5+ years of experience building SaaS platforms using TypeScript, Node.js, NestJS, React, and AWS. I deliver high-performance backend systems with API response times under 200ms and have shipped internal developer platforms, including a drag-and-drop platform builder that reduced custom development time by 60%. I’ve led architecture and development work across product stacks, improving reliability, scalability, and time-to-market for multi-environment deployments.

Available to hire

I’m Aymen El Kadioui, a Senior Software Engineer with 5+ years of experience building SaaS platforms using TypeScript, Node.js, NestJS, React, and AWS. I deliver high-performance backend systems with API response times under 200ms and have shipped internal developer platforms, including a drag-and-drop platform builder that reduced custom development time by 60%. I’ve led architecture and development work across product stacks, improving reliability, scalability, and time-to-market for multi-environment deployments.

Skills

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Intermediate

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Beginner

Work Experience

Senior Software Engineer at Flow Digital Studio

June 1, 2025 - Present

Led architecture and development of a SaaS e-commerce platform, improving performance, scalability, and engineering workflows across the product stack.

Senior Software Engineer at Zapprent (Flow Digital Studio)

September 1, 2023 - May 31, 2025

Implemented scalable e-signature and contract generation services using AWS Lambda for high-volume document processing. Refactored core backend modules to improve code structure, scalability, and performance, reducing system latency by 35% and delivering a smoother, more responsive user experience. Optimized AWS resource usage with serverless compute and function orchestration, cutting infrastructure costs by 25% while maintaining uptime above 99.9%. Led peer code reviews and knowledge-sharing sessions, standardizing best practices and boosting productivity and collaboration by 20%. Collaborated with UI/UX to enhance tenant-facing web and mobile interfaces, improving accessibility and increasing user satisfaction by 22%.

Software Engineer at Flow Digital Studio

October 1, 2022 - September 30, 2023

Built a full admin platform that automated 80% of operational workflows, improved project turnaround time and internal coordination. Introduced CI/CD pipelines with GitHub Actions and Docker, reducing release errors by 60% and enabling faster deployments. Led migration from Meteor.js to React/NestJS and microservices, improving load time by 35%. Developed and launched an end-to-end admin management platform, automating 80% of manual workflows and reducing overall project turnaround time by 25%, enabling faster client onboarding and reporting. Enhanced API performance by refactoring critical endpoints and implementing caching, reducing average API response time from 1.2s to 150ms.

Software Engineer at Berexia

June 1, 2021 - February 28, 2022

Developed and deployed over 10 new application features that enhanced core functionality and usability across key modules, boosting user retention by 35% through seamless navigation and faster workflows. Resolved over 100 production bugs, improving platform stability and reliability. Increased code maintainability by integrating TypeScript and standardized ESLint rules, improving overall team productivity by 30%.

Intern Web Developer at ZINE IT

June 1, 2020 - August 31, 2020

Implemented real-time audio-video calling feature using Socket.IO and WebRTC, achieving high connection success rate and reducing call setup time by 40%. Created and executed 50+ unit tests, boosting code coverage to 90% and ensuring consistent cross-browser functionality. Collaborated with senior engineers to integrate RESTful APIs and improve session handling, resulting in smoother in-app communications. Coordinated deployment and debugging processes, reducing post-launch issues by 25% and improving user feedback.

Software Engineer at BA Technology

March 1, 2022 - September 30, 2022

Engineered a multi-channel notification system integrating email, SMS, and web sockets, increasing user engagement and message delivery reliability. Built reusable UI components and modular architecture, reducing code duplication and improving scalability for future releases. Led the creation of a drag-and-drop form builder; reduced custom development time by 60% and improved user feedback by 60% after release. Optimized core application logic and backend APIs via systematic refactoring, increasing system performance by 55% and lowering server load during peak traffic.

Senior Software Engineer at ZappyRent

September 1, 2023 - May 1, 2025

Implemented scalable e-signature and contract generation services using AWS Lambda for high-volume document processing. Refactored core backend modules to improve code structure, scalability, and performance, resulting in a 35% reduction in system latency and improved uptime. Optimized AWS resource utilization through efficient serverless orchestration, cutting overall infrastructure costs by 25% while maintaining uptime and system reliability above 99.9%. Led peer code reviews and internal knowledge-sharing sessions, standardizing best practices across the engineering team and improving overall development productivity and collaboration by 20%. Collaborated closely with UI/UX design teams to enhance the tenant-facing web and mobile interfaces, streamlining navigation and improving accessibility, which led to a 22% increase in user satisfaction scores.

Senior Software Engineer at Flow Digital Studio

October 1, 2022 - September 1, 2023

Built a full admin platform that automated 80% of operational workflows, improving project turnaround time and internal coordination. Introduced CI/CD pipelines with GitHub Actions and Docker, reducing release errors by 60% and enabling faster deployments. Led the migration from Meteor.js to React/NestJS, redesigning the system architecture into microservices, improving load time by 35%. Developed and launched an end-to-end admin management platform, automating 80% of manual workflows and reducing overall project turnaround time by 25%, enabling faster client onboarding and reporting. Enhanced API performance by refactoring critical endpoints and implementing caching mechanisms, reducing average API response time from 1.2s to 150ms.

Senior Software Engineer at BA Technology

March 1, 2022 - September 1, 2022

Engineered a multi-channel notification system integrating email, SMS, and WebSocket protocols, increasing user engagement by 45% and message delivery reliability by 99%. Built reusable UI components and modular architecture, reducing code duplication by 30% and improving scalability for future releases. Led the creation of a drag-and-drop form builder; decreased custom form development time by 60%, and positive user feedback on form experience increased by 60% after release. Optimized core application logic and backend APIs through systematic refactoring and performance tuning, improving system response time by 55% and reducing server load during high-traffic operations.

Senior Software Engineer at Berexia

June 1, 2021 - February 1, 2022

Developed and deployed over 10 new application features that enhanced core functionality, improved usability across key modules, and boosted overall user retention by 35% through seamless navigation and faster workflows. Resolved over 100 production bugs, improving platform stability and system reliability. Increased code maintainability through the integration of TypeScript and standardized ESLint rules, improving overall team productivity by 30%.