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Hi, I'm Harry Jones, a Senior Full Stack Engineer with over 12 years of experience specializing in AI-powered web and mobile applications. I enjoy working across the full stack with technologies like React, Vue, Node.js, Django, and C#, and integrating AI features using tools like OpenAI, LangChain, and TensorFlow. I'm passionate about creating reliable and scalable systems that blend traditional software with intelligent features such as chat assistants and smart recommendations. I work closely with product teams to bring meaningful AI solutions to life and mentor junior developers to improve code quality and product focus.…Hi, I'm Harry Jones, a Senior Full Stack Engineer with over 12 years of experience specializing in AI-powered web and mobile applications. I enjoy working across the full stack with technologies like React, Vue, Node.js, Django, and C#, and integrating AI features using tools like OpenAI, LangChain, and TensorFlow. I'm passionate about creating reliable and scalable systems that blend traditional software with intelligent features such as chat assistants and smart recommendations. I work closely with product teams to bring meaningful AI solutions to life and mentor junior developers to improve code quality and product focus.

Harry Jones

Full Stack Developer, AI Engineer, AI Strategy Consultant, +4

5.0 (1 review)

Hi, I'm Harry Jones, a Senior Full Stack Engineer with over 12 years of experience specializing in AI-powered web and mobile applications. I enjoy working across the full stack with technologies like React, Vue, Node.js, Django, and C#, and integrating AI features using tools like OpenAI, LangChain, and TensorFlow. I'm passionate about creating reliable and scalable systems that blend traditional software with intelligent features such as chat assistants and smart recommendations. I work closely with product teams to bring meaningful AI solutions to life and mentor junior developers to improve code quality and product focus.…Hi, I'm Harry Jones, a Senior Full Stack Engineer with over 12 years of experience specializing in AI-powered web and mobile applications. I enjoy working across the full stack with technologies like React, Vue, Node.js, Django, and C#, and integrating AI features using tools like OpenAI, LangChain, and TensorFlow. I'm passionate about creating reliable and scalable systems that blend traditional software with intelligent features such as chat assistants and smart recommendations. I work closely with product teams to bring meaningful AI solutions to life and mentor junior developers to improve code quality and product focus.

Available to hire

Hi, I’m Harry Jones, a Senior Full Stack Engineer with over 12 years of experience specializing in AI-powered web and mobile applications. I enjoy working across the full stack with technologies like React, Vue, Node.js, Django, and C#, and integrating AI features using tools like OpenAI, LangChain, and TensorFlow.

I’m passionate about creating reliable and scalable systems that blend traditional software with intelligent features such as chat assistants and smart recommendations. I work closely with product teams to bring meaningful AI solutions to life and mentor junior developers to improve code quality and product focus.

Skills

Experience Level

Expert

Expert

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Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior AI Full Stack Engineer at Whilx - AI Startup

October 1, 2024 - March 31, 2025

Led development of core AI-powered features, combining React, Node.js, and FastAPI to deliver real-time tools for intelligent content generation, automated workflows, and contextual recommendations. Integrated OpenAI, Cohere, and Hugging Face models into backend systems for summarization, chat interfaces, SEO optimization, and content rewriting. Architected hybrid retrieval-augmented generation pipelines using LangChain, Pinecone, and PostgreSQL, enabling dynamic, data-driven responses. Built admin dashboards for AI performance monitoring, prompt testing, token usage, and cost control. Collaborated with ML engineers to deploy models as scalable APIs on AWS Lambda, ECS, and CloudFront. Prototyped semantic document search to improve customer support relevance by 40%. Applied Playwright and Cypress for robust testing of AI-driven UI states. Implemented fine-tuning and prompt engineering to align model outputs with goals. Designed CI/CD pipelines with GitHub Actions, Docker, and AWS Parame

Senior AI Full Stack Developer at Cisco System, Inc

April 1, 2022 - June 30, 2024

Led backend development with Java and Spring Boot to build scalable APIs supporting real-time data processing and AI-powered personalization. Designed RESTful and GraphQL endpoints delivering tailored content and recommendations. Collaborated with data scientists to deploy machine learning models including OpenAI, scikit-learn, and TensorFlow into reliable API workflows. Developed data ingestion and transformation pipelines for AI systems handling structured and unstructured data. Managed embedding and vector search infrastructure for personalized search and tagging using cosine similarity and custom ranking. Built dashboards exposing AI insights like engagement scoring and recommendation confidence. Created validation layers monitoring model drift and anomaly logging, triggering fallbacks on AI output failures. Maintained over 90% test coverage using Jenkins and JUnit, introduced PostgreSQL query optimizations and Redis caching to reduce latency in AI-enhanced endpoints.

Senior Back End Developer at BAE Systems

July 1, 2018 - June 30, 2022

Delivered high-performance backend systems using Django and Python, supporting high concurrency for large-scale web applications. Developed RESTful and GraphQL APIs improving response times by 25%. Designed and optimized PostgreSQL database schemas with advanced indexing and query tuning. Implemented Redis caching for frequently requested endpoints to improve performance. Built scalable asynchronous data pipelines with Celery for large-scale background jobs like analytics, notifications, and batch imports. Integrated real-time features using Django Channels and WebSockets. Led infrastructure automation using Terraform and AWS Lambda, cutting deployment errors by 40%. Managed cloud service deployments focusing on scalability, resilience, and cost-efficiency. Supported frontend integration through well-structured APIs and backend logic. Created internal data dashboards using Python analytics and visualizations with Chart.js and D3.js. Mentored junior engineers on Django architecture and

Backend Developer at SAGE Group

January 1, 2016 - July 1, 2018

Developed and maintained backend services with Node.js and NestJS for internal and client-facing applications. Created and optimized GraphQL endpoints for efficient data retrieval and frontend integration. Implemented secure authentication using SAML SSO, multi-factor authentication, and OAuth2. Managed user sessions and identity provider integrations. Built automated CI/CD pipelines with Azure DevOps to streamline deployments. Utilized Sequelize ORM and PostgreSQL to optimize database queries for high-volume data. Integrated APIs for payment gateways, geolocation, and authentication ensuring reliable backend operations. Supported automated testing with Cypress for critical workflows. Documented backend architecture and mentored new developers to accelerate onboarding and enhance project understanding.

Senior AI Full Stack Engineer at Whilx - AI Startup

October 1, 2024 - March 31, 2025

Led development of core AI-powered features using React, Node.js, and FastAPI such as real-time content generation, automated workflows, and contextual recommendations. Integrated OpenAI, Cohere, and Hugging Face models in backend systems. Architected retrieval-augmented generation pipelines using LangChain, Pinecone, and PostgreSQL. Built admin dashboards for AI performance monitoring and managed deployment of secure APIs on AWS. Prototyped semantic search features improving customer support response relevance by 40%. Led testing with Playwright and Cypress, implemented fine-tuning and prompt engineering, designed CI/CD pipelines, and mentored team members in AI integration and prompt design. Evaluated AI observability tools for production monitoring.

Senior AI Full Stack Developer at Cisco System, Inc

April 1, 2022 - June 30, 2024

Led backend system development and optimization using Java and Spring Boot for scalable APIs supporting real-time AI personalization services. Designed RESTful and GraphQL endpoints, integrated ML models from OpenAI, scikit-learn, and TensorFlow into production workflows. Developed data pipelines and managed embedding/vector search infrastructure for personalized search. Built dashboards exposing AI insights, validated model performance with monitoring layers, and implemented CI/CD pipelines with Jenkins. Maintained high test coverage and improved database performance using PostgreSQL and Redis caching.

Senior Back End Developer at BAE Systems

July 1, 2018 - June 30, 2022

Developed high-performance backend systems using Django and Python supporting large-scale applications. Designed RESTful and GraphQL APIs, optimized PostgreSQL schemas and queries, and implemented Redis caching. Built asynchronous data pipelines with Celery, integrated real-time processing with Django Channels and WebSockets, and led infrastructure automation with Terraform and AWS Lambda. Deployed scalable cloud services, collaborated with frontend teams, contributed to internal data dashboards, and mentored junior engineers on backend architecture.

Backend Developer at SAGE Group

January 1, 2016 - July 1, 2018

Developed and maintained backend services using Node.js and NestJS for internal and client-facing applications. Created and optimized GraphQL endpoints and implemented secure authentication flows with SAML SSO, multi-factor authentication, and OAuth2. Managed user session handling and integrated external identity providers. Built CI/CD pipelines with Azure DevOps, optimized database queries with Sequelize ORM and PostgreSQL, and collaborated on API integrations for payments and geolocation. Supported automated testing with Cypress and documented backend systems to assist onboarding.