Open to opportunities

John Martins

@johnmartins

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Experienced full stack developer specializing in AI integration.

United States

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What I'm looking for

I am looking for a role that challenges my skills in AI and full stack development, offers opportunities for growth, and fosters a collaborative team environment.

I am a seasoned full stack developer with over 10 years of experience, specializing in AI integration and the development of scalable web applications. My passion lies in building AI-powered solutions that not only meet the needs of startups but also drive significant results. I have a proven track record of delivering complete solutions, from clean frontends to robust backends, ensuring that every project I undertake is both efficient and effective.

Throughout my career, I have successfully developed and deployed various AI-driven applications, including an LLM-powered internal assistant that significantly reduced onboarding efforts. My expertise in working with large language models, RAG pipelines, and third-party AI APIs has allowed me to create innovative tools that enhance user experience and operational efficiency. I thrive in dynamic environments where I can leverage my skills to solve real-world problems and contribute to the success of my team and organization.

Experience

Work history, roles, and key accomplishments

Current

AI & Full Stack Engineer

Current

Pace Harmon

Jul 2023 - Present (2 years 1 month)

Developed and deployed an LLM-powered internal assistant, reducing triage and onboarding efforts by over 50%. Implemented a modular RAG pipeline using LangChain, FastAPI, and ChromaDB to dynamically respond to enterprise-level queries.

Lang Chain fastAPI ChromaDB LLM Next.js GitHub Actions)Docker

AI Software Engineer

Access Global Group

Sep 2020 - May 2023 (2 years 8 months)

Designed an AI knowledge bot using LangChain + Pinecone for internal documentation Q&A, reducing support workload by 60%. Built domain-specific fine-tuning pipelines using LoRA and Hugging Face Transformers.

Lang Chain Pinecone RESTful APIs AWS Lambda PostgreSQL

Web Developer – AI Enabled Interfaces

VMware

Jul 2019 - Aug 2020 (1 year 1 month)

Built intelligent interface components using React.js for AI-driven user recommendations. Integrated NLP-based document search across cloud storage using FastAPI and Elasticsearch.

React NLP fastAPI Elasticsearch Jenkins Docker GPT

Front End Engineer

EarlyShares

Dec 2016 - May 2019 (2 years 5 months)

Built UI for a machine learning-backed investment scoring system, enhancing deal closure rate by 22%. Integrated over 18 REST APIs and improved platform's mobile responsiveness, increasing mobile conversion by 20%.

UI Machine Learning REST APIs