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James Riley

@jamesriley

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Senior Full Stack Engineer building scalable, data-driven web systems with Python and TypeScript.

United Kingdom

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What I'm looking for

I’m looking to join a product-focused team where I can own scalable full-stack systems—APIs, data pipelines, performance, and ML-powered features—while mentoring others and continuously improving architecture and delivery.

I’m a Senior Full Stack Engineer with 9+ years of experience building scalable web applications and data-driven systems, combining Python, JavaScript/TypeScript, and modern frameworks across the MERN stack. I design and deliver backend services, APIs, and data pipelines for high-volume processing, real-time analytics, and integrated machine learning workflows.

Across my roles, I’ve improved performance and reliability through cloud-native architectures, distributed systems, and careful database design across relational and NoSQL platforms. Most recently, I built ingestion and processing pipelines handling millions of records per day, delivered REST and GraphQL APIs at 100K+ daily requests, and reduced dashboard load times by 30%, deployment time by 50%, and API latency by 35%, while mentoring junior engineers through code reviews and best practices.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Engineer

Current

Sky

Nov 2022 - Present (3 years 4 months)

Built a scalable data ingestion and processing platform handling millions of records per day using Python (FastAPI) and Node.js. Improved dashboard load times by 30%, background processing efficiency by 40%, API response latency by 35%, and reduced deployment time by 50% via React/Next.js, Redis/Celery, Docker, and AWS ECS/Lambda.

Python fastAPI Node.Js React Next.js Celery Redis AWS ECS Lambda NodeJS

Full Stack Engineer

RSM

Sep 2021 - Oct 2022 (1 year 1 month)

Developed backend services in Python (Flask) powering AI-driven classification and recommendation features, improving prediction accuracy by 15%. Built ML prediction APIs with PyTest validation and reduced model training time by 25%, using Docker Compose to cut onboarding/setup time by 30%.

Python Flask scikit learn TensorFlow NumPy data preprocessing REST APIs Pytest Docker Compose

Software Engineer

HTK

Aug 2020 - Sep 2021 (1 year 1 month)

Built distributed backend services in Java (Spring Boot) and REST APIs, improving service stability by 20% through unit testing. Optimized MySQL data models to reduce response time by 25% and implemented scheduled/batch processing with Spring Batch for reliable thousands-of-record runs.

Java Spring Boot Spring MVC MySQL REST APIs Junit Data Modeling Distributed Systems

Software Development Engineer

Cisco

Jul 2018 - Jul 2019 (1 year)

Developed backend APIs with Node.js and Express to support application workflows for thousands of users. Secured services using JWT authentication, persisted data in MongoDB (improving query efficiency by 20%), and integrated third-party APIs to extend platform functionality.

Node.Js React MongoDB REST APIs JWT Mocha Chai API Integration NodeJS

Web Developer

Riley and Riley Fine Jewellery

Jul 2016 - Jul 2018 (2 years)

Created responsive, cross-browser web interfaces using HTML5, CSS3, and JavaScript, translating UI/UX designs into working components. Improved existing application performance by 15% by fixing bugs, and enhanced interactivity with jQuery while supporting PHP-based form and server-side logic.