Open to opportunities

ellis hartwell

@ellishartwell

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Results-driven Backend Developer with expertise in AI-powered systems.

United Kingdom

Message

What I'm looking for

I am looking for a role that challenges my skills in AI and backend development, offers opportunities for growth, and values innovation in technology.

I am a results-driven Backend Developer with over 6 years of experience in designing high-performance, scalable, and AI-powered backend systems. My expertise lies in microservices architecture, real-time data processing, API security, and database optimization. I am passionate about leveraging AI for predictive analytics, auto-scaling, and self-healing backend systems, ensuring that I deliver robust solutions that meet the evolving needs of businesses.

In my current role as a Senior Backend Engineer at AeroCloud, I designed a high-availability API system that significantly reduced response time by 50%. I implemented an AI-powered auto-scaling mechanism that cut infrastructure costs by 35% and built a real-time fraud detection system that decreased fraud cases by 40%. My previous experience at Yimba and Bikmo further honed my skills in migrating architectures, developing AI-driven systems, and optimizing database performance, making me adept at building low-latency APIs and implementing AI-driven monitoring solutions.

Experience

Work history, roles, and key accomplishments

Current

Senior Backend Engineer

Current

AeroCloud

Feb 2021 - Present (4 years 4 months)

Designed a high-availability API system with FastAPI & PostgreSQL, reducing response time by 50%. Implemented an AI-powered auto-scaling mechanism using Kubernetes & AWS Lambda, cutting infrastructure costs by 35%. Built a real-time fraud detection system leveraging AI anomaly detection models, decreasing fraud cases by 40%. Optimized database performance using indexing & AI-driven query optimizat

fastAPI PostgreSQL Kubernetes AWS Lambda Anomaly Detection Database Optimization

Backend Developer

Yimba

Jan 2018 - Feb 2021 (3 years 1 month)

Migrated monolithic architecture to microservices, enhancing system scalability by 3x. Developed an AI-powered API rate-limiting system, blocking 95% of malicious requests. Led the integration of OpenAI’s GPT API for automated customer response generation. Built event-driven backend processing with Kafka & Redis, improving system throughput by 50%.

Microservices Kafka Redis Scalable Systems Event Processing Backend

Junior Backend Developer

Bikmo

Jan 2016 - Jan 2018 (2 years)

Developed and deployed secure REST APIs using Django & PostgreSQL. Automated log analysis & monitoring with AI-based anomaly detection. Implemented GraphQL APIs, reducing frontend-to-backend calls by 30%.