I'm a developer who specializes in... from... Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it. --- **Employment and project experience** **Senior Developer** Salesforce Inc. _January 2017 - March 2017_ **Full-stack Developer** Microsoft Inc. _January 2019 - March 2019_…

Gabriel Martins

I'm a developer who specializes in... from... Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it. --- **Employment and project experience** **Senior Developer** Salesforce Inc. _January 2017 - March 2017_ **Full-stack Developer** Microsoft Inc. _January 2019 - March 2019_…

Available to hire

I’m a developer who specializes in… from…

Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it.

Employment and project experience

Senior Developer Salesforce Inc.
January 2017 - March 2017

Full-stack Developer Microsoft Inc.
January 2019 - March 2019

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Work Experience

AI Full-Stack Engineer / GenAI Developer at Optum
May 1, 2025 - June 1, 2026
Built autonomous clinical reasoning agents in Python using LangGraph and LangChain to automate medical chart review and reduce documentation time by 30% for 5,000+ providers. Developed and scaled a production RAG system processing clinical guidelines with Azure OpenAI (GPT-4o), achieving 94% accuracy in evidence-based recommendations. Integrated AI extraction into FastAPI services for unstructured medical data coding with 92% precision, and built enterprise AI APIs with FastAPI/Pydantic v2 to enforce regulated-data requirements and strict FHIR/HL7 validation. Deployed containerized GenAI microservices on Azure Kubernetes Service using Docker and Terraform, maintaining 99.99% uptime during rollouts, and optimized vector similarity search across millions of de-identified records using Pinecone and Weaviate for predictive ML workflows.
Associate Full-Stack Developer at IBM
September 1, 2024 - April 1, 2025
Engineered a Python/FastAPI RAG pipeline with IBM watsonx.ai and Granite 3.0 LLMs enabling clients to query complex regulatory data with 95% accuracy. Developed 8+ autonomous Digital Labor agents with watsonx Orchestrate to automate multi-step API integrations between React applications and Python microservices. Built a prompt-engineering library for watsonx Code Assistant to automate PyTest/Jest generation and Python refactoring, reducing feature turnaround time by 30%. Migrated monolithic Python applications into containerized microservices on Red Hat OpenShift with AI-assisted migration workflows, and provisioned secure hybrid-cloud infrastructure using HashiCorp Terraform while applying AI governance practices for regulated workloads.
AI / Full-Stack Engineer at InsightEdge
March 1, 2024 - August 1, 2024
Built an AI-driven insights platform using Next.js, FastAPI, Python, and AI models to generate company-specific summaries and recommendations. Deployed and operated the platform on GCP with Supabase for secure data storage and scalable backend operations. Collaborated with data scientists and AI specialists to fine-tune models and improve generated insight quality.
Full-Stack Engineer at Butterflies AI
April 1, 2023 - March 1, 2024
Built an AI-powered social networking platform centered on human-AI interaction using React, Next.js, Python, Supabase, and GCP. Integrated AI/ML capabilities and backend services while improving performance and scalability through Node.js and cloud infrastructure.
Backend Developer at GMI Studios
October 1, 2021 - March 1, 2023
Developed backend services and APIs for a multi-media platform, including staking workflows, NFT ownership snapshots, and third-party integrations.
Full Stack Developer at CodeSource
October 1, 2019 - September 1, 2020
Developed React applications with AWS Cognito, AWS API Gateway, and Lambda, including REST APIs and serverless workflows using SNS/SQS.
Full-Stack Web Developer at UniClix
May 1, 2017 - September 1, 2019
Built and modernized web applications using the MERN stack, including dashboards, scheduled automation, and third-party API integrations.
Frontend Developer at Cliently
March 1, 2016 - April 1, 2017
Worked on React migrations, automated lead-generation workflows, and integrated Stripe.
Web Developer at IRIS
February 1, 2015 - February 1, 2017
Modernized MERN-based systems, built admin/customer consoles, and implemented performance improvements.

Education

Bachelor of Science at Singapore Institute of Technology
April 1, 2011 - August 1, 2015

Qualifications

Add your qualifications or awards here.

Industry Experience

Healthcare, Software & Internet, Professional Services