Senior Ruby on Rails Developer

About me

Dear Hiring Team,
I am writing to express my strong interest in the Full Stack Engineer position. As a developer with over 4 years of professional experience in architecting high-performance web products and distributed systems, I bring a unique blend of senior-level technical execution and the academic rigor of a Master’s candidate at EPITECH Paris.
Throughout my career, I have specialized in building scalable, user-centric products that bridge the gap between robust backend logic and seamless frontend experiences. My professional background is defined by a commitment to performance and reliability, featuring key accomplishments such as:
Scaling High-Traffic Systems: Re-engineering core modules for platforms supporting 100k+ concurrent users, maintaining sub-200ms latency, and optimizing resource utilization through Docker and Azure.
Full Stack & Product Delivery: Proven success in the full lifecycle of web products—from designing complex RESTful APIs and microservices in .NET Core and Ruby on Rails to implementing AI-driven optimizations that resulted in a 60% reduction in out-of-stock rates.
Award-Winning Innovation: Leading a Gold-medal winning AI Hackathon project, where I implemented custom LLMs to solve real-world logistics challenges, demonstrating my ability to integrate cutting-edge technology into functional business solutions.
I am currently seeking a 1-year Apprenticeship (Alternance) starting September 2026, following a rhythm of 3 weeks in the office and 1 week at school. Unlike a traditional junior apprentice, I offer a "plug-and-play" mindset, ready to take immediate ownership of features, mentor peers, and contribute to your DevOps and cloud infrastructure (Azure, Kubernetes, CI/CD) from day one.
I am eager to bring my proactive approach and technical seniority to your engineering team. Thank you for your time and consideration, and I look forward to the possibility of discussing how my experience can support your product goals.
Best regards,
Umar Mahmood