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I am a staff-level software engineer with 8+ years of experience designing, building, and operating large-scale SaaS platforms and distributed systems across fintech and healthcare. I specialize in systems that move money, process high-volume data, and stay reliable under unpredictable traffic spikes. I have deep experience with Node.js, NestJS, GraphQL, React, and Next.js, and I work with cloud-native microservices on AWS and Azure. I am known for pragmatic system design, performance tuning, and guiding teams to scalable architectures while maintaining reliability and operational excellence. I enjoy owning platforms end to end—from API contracts and data models to production observability and delivery.…I am a staff-level software engineer with 8+ years of experience designing, building, and operating large-scale SaaS platforms and distributed systems across fintech and healthcare. I specialize in systems that move money, process high-volume data, and stay reliable under unpredictable traffic spikes. I have deep experience with Node.js, NestJS, GraphQL, React, and Next.js, and I work with cloud-native microservices on AWS and Azure. I am known for pragmatic system design, performance tuning, and guiding teams to scalable architectures while maintaining reliability and operational excellence. I enjoy owning platforms end to end—from API contracts and data models to production observability and delivery.

Ian Caffey

Full Stack Developer, Front-End Developer, Back-End Developer, +3

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I am a staff-level software engineer with 8+ years of experience designing, building, and operating large-scale SaaS platforms and distributed systems across fintech and healthcare. I specialize in systems that move money, process high-volume data, and stay reliable under unpredictable traffic spikes. I have deep experience with Node.js, NestJS, GraphQL, React, and Next.js, and I work with cloud-native microservices on AWS and Azure. I am known for pragmatic system design, performance tuning, and guiding teams to scalable architectures while maintaining reliability and operational excellence. I enjoy owning platforms end to end—from API contracts and data models to production observability and delivery.…I am a staff-level software engineer with 8+ years of experience designing, building, and operating large-scale SaaS platforms and distributed systems across fintech and healthcare. I specialize in systems that move money, process high-volume data, and stay reliable under unpredictable traffic spikes. I have deep experience with Node.js, NestJS, GraphQL, React, and Next.js, and I work with cloud-native microservices on AWS and Azure. I am known for pragmatic system design, performance tuning, and guiding teams to scalable architectures while maintaining reliability and operational excellence. I enjoy owning platforms end to end—from API contracts and data models to production observability and delivery.

Available to hire

I am a staff-level software engineer with 8+ years of experience designing, building, and operating large-scale SaaS platforms and distributed systems across fintech and healthcare. I specialize in systems that move money, process high-volume data, and stay reliable under unpredictable traffic spikes.

I have deep experience with Node.js, NestJS, GraphQL, React, and Next.js, and I work with cloud-native microservices on AWS and Azure. I am known for pragmatic system design, performance tuning, and guiding teams to scalable architectures while maintaining reliability and operational excellence. I enjoy owning platforms end to end—from API contracts and data models to production observability and delivery.

Skills

Experience Level

Expert

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Language

English

Fluent

Work Experience

Senior Software Engineer at Portless

January 1, 2023 - Present

Owned and evolved a multi-tenant fintech and healthcare SaaS platform spanning payments, search, and operational workflows, supporting 20+ internal and customer-facing services in regulated environments with strict reliability and data-integrity requirements. Architected event-driven systems using Kafka and RabbitMQ, coordinating 40+ domain services across payments, inventory, fulfillment, and search while avoiding tight coupling between teams. Ran production workloads on Kubernetes in Azure with 300+ containers and automated scaling, enabling frequent releases without downstream disruption. Built and maintained GraphQL and REST APIs using Node.js and NestJS with explicit contracts and long-term maintainability. Led Agile delivery, API contracts, and architectural reviews to ensure platform stability while delivering front-end features for 3M+ users.

Technical Architect at Loop Returns

May 1, 2020 - December 1, 2022

Built and operated backend platforms deeply integrated with Salesforce, supporting multiple business units with differing stability, compliance, and delivery expectations. Designed RESTful SaaS platforms using C#, .NET, Python, and Django, serving 8M+ API calls per day with predictable latency and graceful degradation under load. Structured services using SOA, enabling independent evolution as Salesforce adoption expanded. Added AI-powered services using FastAPI, Azure AI Search, and RAG pipelines, enabling semantic search across millions of indexed documents while isolating AI workloads from core transaction paths. Deployed and operated distributed services on AWS, balancing cost efficiency, performance, and operational clarity across dozens of production workloads. Built and maintained 100+ CI/CD pipelines using GitHub Actions and Jenkins, enabling reliable, repeatable deployments without manual intervention. Implemented production-grade observability with New Relic and Grafana, moni

Software Engineer at Honor

January 1, 2019 - April 1, 2020

Supported logistics SaaS platforms handling high-volume operational workflows with strict performance and reliability requirements. Built and stabilized RESTful services using Python, Django, Java, and Spring, processing 500K+ logistics events per day. Applied SOA patterns to keep complex logistics domains understandable, loosely coupled, and resilient under load. Developed internal operational tools using Vue, supporting hundreds of daily users. Expanded automated testing coverage with JUnit, Mockito, REST Assured, JaCoCo, unittest, and pytest, running thousands of tests per release cycle. Delivered ETL and ML-ready services with FastAPI, processing millions of records for analytics and automation use cases. Integrated Strapi for structured content management used by operational teams. Maintained CI/CD pipelines with Bitbucket and Docker across dozens of containerized services.

Full Stack Developer at Zendesk

September 1, 2017 - December 1, 2018

Built full-stack SaaS applications integrated with Salesforce using C#, .NET, PHP, Laravel, GraphQL, and REST APIs. Delivered frontend systems supporting 750K+ monthly active users, maintaining performance, reliability, and long-term maintainability. Developed service-oriented backend APIs that scaled predictably without frequent rewrites. Built modern UIs with React, backed by GraphQL and REST. Implemented comprehensive frontend testing with Jest, React Testing Library, Cypress, Vitest, and Playwright. Integrated WordPress and Drupal for content-heavy features. Collaborated closely with product and engineering to evolve API contracts alongside rapidly changing requirements.