Open to opportunities

Mitchell Kennedy

@mitchellkennedy

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Senior full-stack engineer building AI-driven, scalable platforms across FinTech, Healthcare, and payments.

United States

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What I'm looking for

I’m looking for a senior role where I can build secure, cloud-native full-stack systems and embed AI decisioning into real products—especially payments or healthcare—using strong engineering practices, clear ownership, and data-driven improvement.

I’m a Senior Full Stack Engineer with 10+ years of experience building scalable platforms across FinTech, Healthcare, and AI. I develop advanced AI-driven applications—from decisioning logic to real-time experiences—always with a focus on reliability, security, and measurable business impact.

At AvendoLLC, I integrated a multi-PSP payment gateway that lets merchants dynamically select the optimal provider using transaction conditions, performance, and cost. I also embedded AI-powered decision-making to recommend the best PSP in real time, built internal/admin dashboards for monitoring, and implemented intelligent routing rules with Redis caching to reduce transaction failure windows.

Previously at Supreme Group, I developed a real-time AI chat application using React and Next.js for performance-focused rendering, with Python-based AI model integration on the backend. I implemented state management and continuous user communication using hooks and WebSockets, and I secured authentication and session handling with JWT and Python-based APIs.

Earlier roles strengthened my foundation in secure, compliant systems and distributed architectures. I built HIPAA-compliant telemedicine services with Node.js + Python, JWT + RBAC, and resilient design patterns (caching, circuit breakers, fallback mechanisms), and I’ve also delivered event-driven and WebRTC-focused improvements to stabilize real-time media and reduce latency/packet loss.

Experience

Work history, roles, and key accomplishments

Senior Full Stack Developer

Avendo LLC

Oct 2025 - Apr 2026 (6 months)

Integrated a multi-PSP payment gateway that dynamically routes transactions to the optimal provider based on real-time conditions. Built admin/merchant dashboards and realtime monitoring, and added AI-driven decisioning with Redis caching, Postgres storage, and Azure Cosmos DB.

Next.js Django Multi PSP Routing Redis PostgreSQL Azure Cosmos Monitoring REST APIs Dashboards

Senior Software Engineer

Supreme Group

Jun 2023 - Sep 2025 (2 years 3 months)

Developed a real-time AI chat application with React and Next.js, integrating Python-based AI models and natural language processing features. Implemented WebSocket-based live updates, secure JWT authentication, and performance improvements via SSR/SSG and backend optimization.

React Next.js Python WebSockets JWT NLP

Senior Full Stack Developer

Athelas

Oct 2021 - May 2023 (1 year 7 months)

Built backend services for a HIPAA-compliant telemedicine platform using Node.js, Python, MySQL, and RabbitMQ for asynchronous doctor-patient interactions. Implemented secure JWT + RBAC REST APIs with auditability, added AI-assisted patient analysis, and improved resilience with Redis caching and circuit breakers.

Node Python MySQL RabbitMQ JWT RBAC REST APIs Redis Circuit Breakers WebRTC

Full Stack Engineer

Tevpro

May 2016 - Sep 2021 (5 years 4 months)

Architected frontend/backend contracts for a telemedicine web application, coordinating WebSocket and REST interfaces to support real-time consultations. Optimized WebRTC reliability with STUN/TURN tuning and implemented secure JWT/RBAC authorization, CI/CD automation, and resilient caching patterns.

WebSockets REST APIs WebRTC STUN TURN Optimization JWT RBAC CI CD Caching ASP.NET Core RabbitMQ

Full Stack Developer

Improving

Oct 2013 - Apr 2016 (2 years 6 months)

Developed a React Native mobile banking app with a Node.js/Express backend and PostgreSQL to support robust account flows and scheduling. Implemented secure onboarding with AWS Cognito, automated CI/CD with App Center, built end-to-end tests (Detox), and helped modernize backend services into an ASP.NET Core event-driven platform backed by RabbitMQ.