Hello!
I'm Kieran

Senior Software Engineer · Ridgeline Logistics Tech

B2B freight tracking and fleet management platform serving 400+ mid-sized businesses.

• Design and maintain core backend microservices using Node.js (NestJS) and PostgreSQL.
• Built an automated webhook notification & retry service using Redis and AWS SQS, reducing missed client shipment updates by 88%.
• Led the migration of a legacy customer dashboard from jQuery/PHP to React and TypeScript, cutting page load from 3.8s to 1.2s and improving mobile responsiveness.
• Optimized slow PostgreSQL reporting queries by restructuring composite indexes and introducing read replicas, lowering average API latency by 35%.
• Weekly on-call rotations, triaging production incidents via Datadog and Sentry; mentor 2 junior developers through code reviews and pair programming.

Software Engineer · ClearPath Health Systems

• Developed and maintained patient scheduling, billing and insurance verification modules using Python (FastAPI) and React.
• Integrated third-party payment gateways (Stripe API) and EHR data sync pipelines, processing over $1.5M in monthly patient copays and invoices.
• Containerized local development with Docker and Docker Compose, cutting onboarding setup from two days to under an hour.
• Built CI/CD pipelines with GitHub Actions running unit & integration suites (Pytest, Jest), raising test coverage from 48% to 82%.
• Worked in Agile/Scrum with product managers and UI/UX designers to scope, estimate and deliver bi-weekly sprint releases.

Junior Web Developer · Vanguard Digital Agency

• Built responsive web apps, custom CMS plugins and internal admin tools for retail and hospitality clients using JavaScript, React and Express.js.
• Maintained and patched client websites, resolving cross-browser compatibility issues and improving Lighthouse SEO and accessibility scores.
• Assisted senior developers with MySQL schema migrations and deploying staging environments on AWS EC2 and S3.