Mostafa (.

Mostafa (.

Fullstack Developer

Egypt
Trusted member since 2025
6 years of experience

Over the course of his career, Mostafa progressed from a mid-senior engineer to a team lead, taking ownership of complex systems and driving impactful results. His achievements include building a queued email pipeline capable of processing 10,000 emails every five minutes, scaling systems from approximately 200,000 to 2.7 million users, and leading a migration of over 25 million records with minimal disruption.

Recognized for his ownership, clear communication, and mentoring, Mostafa aligns engineering efforts with business goals, unblocks teams, and consistently prioritizes performance, reliability, and long-term scalability.

Main expertise

PythonPython6 years
FlaskFlask3 years
Microservices6 years
SQLSQL6 years
14+

Experience4

Senior Python Backend Developer & Bug Management Lead

Crocosoft (Client: Breach Secure Now, USA)
Cybersecurity
Oct 2022 · 3y 6m

Breach Secure Now is a US-based cybersecurity training and awareness platform. Mostafa was promoted from mid-senior to lead, managing backend infrastructure and bug management processes.

  • Expanded the platform’s backend from 150K to over 3 million users by optimizing Python/Flask services and upgrading database infrastructure
  • Reduced query execution time by 90% through SQL optimization and migration to MySQL 8
  • Designed and deployed a fully queued email pipeline using AWS SES and SQS, capable of sending over 10,000 branded emails every 5 minutes
  • Increased platform reliability by resolving critical production issues with AWS CloudWatch monitoring and automated alerts
  • Implemented best practices for bug management, led sprint triage, prioritization, and root-cause analysis, which decreased mean time to resolution (MTTR) and improved release quality.
MySQLMySQL
DockerDocker
AWSAWS
FlaskFlask
Project Management
18+
Freelance

Full-Stack Developer (Flask-React)

Freelance
Information Technology (IT) and Services
Jan 2019 - Oct 2022 · 3y 9m

Delivered customized software solutions across various industries, developing complete web applications and APIs with full-stack ownership.

  • Created a Store Management System with financial reporting and user role–based permissions
  • Built a PDF/PPT upload and keyword search service, enabling efficient document searches for enterprise clients
  • Implemented an Arduino-based temperature monitoring system with a real-time dashboard for industrial refrigerators
  • Managed end-to-end deployments on Heroku, AWS, and Render, focusing on scalability and cost efficiency
MySQLMySQL
React.jsReact.js
DockerDocker
PostgreSQLPostgreSQL
RedisRedis
13+

Fullstack Developer

Karezma
Information Technology (IT) and Services
Sep 2018 - Jul 2020 · 1y 10m

Karezma is a technology solutions provider focused on developing custom business applications and IoT integrations.

  • Built and deployed web-based inventory management and reservation platforms using PHP, JavaScript, and MySQL, improving clients’ operational visibility
  • Designed IoT-based monitoring systems by integrating hardware sensors with custom web applications to collect, visualize, and analyze real-time data
  • Developed responsive frontends (HTML/CSS/JS) and optimized backend APIs for scalability and reliability
  • Automated reporting dashboards to provide clients with real-time insights into stock levels, reservations, and system performance
  • Collaborated with multidisciplinary teams, ensuring smooth deployments and ongoing client support
  • Improved system performance and reduced downtime by implementing monitoring and alerting solutions
PHPPHP
MySQLMySQL
JavaScriptJavaScript
HTMLHTML
CSSCSS
4+
Ceramica Prima

R&D Engineer → Production Manager

Ceramica Prima
Manufacturing
Jun 2014 - Oct 2022 · 8y 4m

Ceramica Prima is a ceramics manufacturing company where he progressed from production management into R&D, working across operations, optimization, and process automation.

  • Directed and coordinated daily production operations for multiple product lines, ensuring on-time delivery and adherence to quality standards
  • Introduced workflow automation and digital reporting tools, reducing manual errors and improving decision-making speed
  • Applied data analytics to identify bottlenecks, achieving measurable increases in productivity while reducing waste and material loss
  • Designed and supervised process improvement initiatives in collaboration with engineers, production teams, and management
  • Led cross-functional teams, mentored junior staff, and fostered a culture of continuous improvement and innovation
  • Partnered with R&D to test new manufacturing techniques, optimize raw material usage, and validate prototypes before large-scale production
Project Management
AgileAgile
Data Analytics
Product
Team Leading
2+

Assessments

Engineering excellence

Mostafa’s overall performance in a 90-minute live technical assessment ranks in the top 25% of vetted Fullstack Developers at Proxify.

Education

FOE
Faculty of Engineering, Alexandria University
Industrial2007 - 2013

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