Mahmoud Abdulhaleem

Senior Frontend Engineer | React.js, Next.js

Salary / Daily rate

Cairo, Cairo Governorate, Egypt

Freelance, open to permanent contract

Can come onsite

Skills

ReactNextTypescriptFrontend DevelopmentHTMLBootstrapRuby on RailsReact NativePostgreSQLVercelGitRESTful APIsBackend DevelopmentFullstack DevelopmentMobile DevelopmentTailwind CSSJavascriptCSSReduxRubyMySQLGraphQLPostmanSwagger/OpenAPIXcodeSupabaseGitHubWebpackScrumJiraUser Research

Languages

Arabic (Native)English

About me

Intro

Senior Frontend Engineer with 5+ years transforming complex requirements into user-friendly interfaces using React.js & Next.js. Led teams of 7 developers, reduced deployment times by 25%, and cut development cycles by 40% through scalable component systems. Ready to deliver high-performance web solutions that drive results.

Links

Work experience

Senior Frontend Engineer

Electronic Government Authority, RAK

Mar 2025 - Present

1 year 8 months

On-site

Architectural Leadership: Designed and implemented the overall architecture and data flow across the platform—ensuring seamless communication between the engine, backend, and frontend layers. Team Management: Led a team of 7 senior developers, providing mentorship, conducting one-on-ones, defining learning paths, and maintaining development velocity. Oversaw task planning, sprint execution, and reporting using Jira, while ensuring high code quality through structured code reviews and technical alignment. Technical Decision-Making: Conducted in-depth research and selected the most suitable libraries and tools to enhance data management, UI consistency, and performance. Spearheaded major refactoring efforts to keep the codebase clean, modular, and scalable. Component System Design: Established the architecture and layout for reusable components, including a centralized global data store and a custom internal UI component library, enabling consistency and efficiency across the codebase. Cross-Functional Collaboration: Worked closely with AI, engine, backend, UX, and UI teams to turn complex ideas into elegant, integrated, and user-friendly interfaces. Ensured smooth collaboration and easy integration of frontend modules with other teams' deliverables.

Software Engineer

Slow Fire

Mar 2024 - Present

2 years 8 months

Cairo, Egypt · Remote

• Built the mobile and web app using React.js for user and admin web portals and Expo React Native for iOS and Android, reduced app launch time by 25%, and increased user test groups’ positive feedback by 70%. • Integrated Firebase and User Notifications for real-time mobile push notifications, improving user engagement. • Enhanced user experience by styling the app with Tailwind CSS for full responsiveness, implementing smooth animations with Framer Motion, and using Chart.js for compelling data visualizations in the admin portal. • Managed backend services with Ruby on Rails, leveraging Supabase PostgreSQL storage feature for authentication, data management, and storage to cut costs while obtaining a secure, scalable database, enhancing data processing time by 30%

Full Stack Software Engineer

Hire Hopefuls

Jun 2023 - Mar 2024

10 months

Cairo, Egypt · Remote

• Launched a scalable platform connecting skilled refugees to global job markets using Rails, React, Expo React Native, and GraphQL. • Developed job matching algorithms, increasing match-making's relevance by 90%, and refugee job placement rates by 30%. • Mentored a team of 2 developers, ensuring best practices in full-stack development and Agile methodologies.

Frontend Web Developer

SiFi - Simplified Financial Solutions Company

Apr 2022 - Jul 2023

1 year 4 months

Riyadh Saudi Arabia

• Developed over 100 complex responsive pages of an ERP application’s user and admin portals using React, Next.js, JavaScript, TypeScript, Redux, TailwindCSS, and Sass. • Collaborated with back-end teams to optimize data fetching, improving page load speed and performance by 15% across web portals. • Automated and optimized the integration system with Redux Toolkit, Redux-Saga, and Context API, streamlining API management and global authentication, reducing access-related bugs to 0%. • Designed and led the implementation of reusable, testable components, along with code-sharing and code review policies across all teams to ensure scalability and maintainability. This initiative accelerated feature rollouts, reduced the code base size by 35%, and cut development time by over 40%.

Software Developer

UpworkFreelance

Feb 2020 - Jul 2022

2 years 6 months

Remote, OR 97458, USA

• Completed over 20 front-end development contracts for clients, delivering high-quality, responsive, and user-friendly web applications using React, Next.js, Redux, and multiple styling libraries.

User and Market Research Consultant

Aga Khan Foundation

Dec 2020 - Jan 2022

1 year 2 months

Aswan, Aswan Governorate, Egypt

- Performed in-depth market and user research, and developed business plans for the foundation’s funded startups which are taking losses, saving the foundation 1.2 million of funding. Conducting extensive research on consumers, competitors, and the marketplace and consolidating information into actionable items, and reports as part of financial and business modeling. Supporting startups in reaching Product-User Fit and Product-Market Fit and taking data-driven strategic decisions.

Research Assistant

60 Decibels

Nov 2019 - Dec 2021

2 years 2 months

New York, NY, USA

Conduct Lean Data Interviews and Analysis

Operations Manager

SchoolX

Mar 2020 - Oct 2021

1 year 8 months

Greater London, England, United Kingdom

- Introduced a new training and mentorship program for trainers which recruits and recruits highly skilled fresh graduates and students and provides them with extensive training and mentorship followed by 8 to 16 hours of observed training delivery practice and a certification upon completion. - Researched the Egyptian market and developed a customized service which was the cornerstone for the startup's expansion to Egypt. Supervise market research. Develop new programs' design and strategy in alignment with Market Trends. Oversee the process of curriculum design and content localization. Design team structure, recruitment, onboarding, retaining, and coaching processes.

Startup Mentor

Flat6LabsFreelance

Mar 2019 - Mar 2020

1 year 1 month

Cairo, Cairo Governorate, Egypt

- Mentored and provided training to 6 selected startups during their incubation period. - Helped the incubated startups research and question their market assumptions and build their user and market strategies.

Co-founder and R&D Manager

ACHIMAR Consulting

Feb 2019 - Mar 2020

1 year 2 months

Cairo, Cairo Governorate, Egypt

- Worked with +50 clients on researching their markets and users. - Developed 4 new training program packages in collaboration with multiple SMEs. User-centric consulting and training firm. Our methodology is based on extensive user research, followed by intervention planning and execution. We employ our practical expertise in different delivery tools including Analysis, Training, Consultancy, and Full-fledged Solution Design.

Instructional Design Specialist

Mentarcise

Apr 2018 - Oct 2018

7 months

Cairo, Cairo Governorate, Egypt

- Introduced a brand new program developed for mid-level management; Coaching for Managers. Develope new Training Programs in alignment with the company's Vision, and Market Needs. Create engaging learning activities and compelling course content. Conduct instructional research and analysis on learners and contexts.

Startup Community-Outreach Consultant

Vested summit - S[k]aleUp Ventures Inc.

Mar 2018 - May 2018

3 months

San Francisco, CA, USA

- Head-hunted over 300 international and regional Startups, for the sake of educating them about the summit. - Shortlisted 150 startups to attend the summit.

Entrepreneurship, Financial Literacy, and Life Skills Trainer

INJAZ Egypt

Aug 2016 - Aug 2017

1 year 1 month

Cairo, Cairo Governorate, Egypt

Develop & deliver training programs to public and private school students.

Program Developer and Trainer

Startup School

Aug 2016 - Aug 2017

1 year 1 month

Cairo, Cairo Governorate, Egypt

Design the learning journey for idea phase entrepreneurs Conduct intensive training programs on Lean startup and customer development methodologies

Instructional Design Consultant and Trainer

Don Bosco Institute – Sun Rise ProjectFreelance

May 2017 - Jul 2017

3 months

Cairo, Cairo Governorate, Egypt

- Trained 3 cohorts of refugees on Life Skills. - Designed the Soft Skills curriculum, which was delivered to +100 refugees and Egyptians. The program is designed to introduce The Emotional Intelligence concept to the participants, help them get to know themselves in a better way, and facilitate different ways of improving their social communications.

Customer Satisfaction Manager

Raye7

Feb 2016 - Jul 2016

6 months

Cairo, Cairo Governorate, Egypt

Automated and redesigned the customer communication channels, reducing the Average Handling Time per ticket.

Customer Service Representative

Teleperformance

Nov 2014 - Jan 2016

1 year 3 months

Cairo, Cairo Governorate, Egypt


Education

Microverse

Remote Full Stack Web Development Program

2022 - 2023

2 years

The Faculty of Commerce – Cairo University

Bachelor of Business Administration - BBA

2017 - 2022

5 years 7 months

Ahmed Oraby Secondary School

High School

2009 - 2012

3 years 1 month

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